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23 Best B2B Data Providers and Vendors in 2025

23 Best B2B Data Providers and Vendors in 2025

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We've been building B2B data enrichment tools for years. At FullEnrich, we've tested pretty much every data provider on the market because we had to.

Our waterfall enrichment platform queries 15+ premium data sources, so we know exactly how each one performs.

We've also worked with hundreds of sales teams to help them with their prospecting and data enrichment workflows.

In this post, we're breaking down 23 b2b data vendors (across different categories) so you can pick what's best for your specific needs.

We'll also include an "ease of use" score for each tool (beginner, intermediate, or advanced) to help you choose tools that match your skill level.

What is a B2B data provider?

A B2B data provider (also called a b2b data vendor) is a company that collects, processes, and sells contact and company information to other businesses. This data helps with sales prospecting, marketing campaigns, analytics, and strategic planning.

These tools all do different things. Some help you find email addresses and phone numbers, some help you analyze competitors' contact databases, some provide intent data showing which companies are actively researching solutions, and some help you enrich your CRM with firmographic and technographic data.

Some of the tools we'll go over aim to do all the things we just mentioned, while some only do one specific thing very well. Overall, we've used every single tool on this list and have written a comprehensive review of all of them below.

23 best B2B data providers we've personally tested in 2025

Here are the best b2b data providers right now:

  • FullEnrich (best for maximum data coverage via waterfall)

  • Clay (best for programmable data workflows)

  • ZoomInfo (best for enterprise US sales intelligence)

  • Apollo.io (best for budget-friendly all-in-one sales)

  • Cognism (best for GDPR compliance + phone-verified data)

  • Lusha (best for Chrome extension lookups)

  • Kaspr (best for European LinkedIn prospecting)

  • Dealfront (best for European market intelligence)

  • 6sense (best for predictive ABM + intent data)

  • Bombora (best for buyer intent signals)

  • Demandbase (best for account-based advertising)

  • Hunter.io (best for email finding + verification)

  • Clearbit (best for HubSpot data enrichment)

  • Lead411 (best for trigger-based prospecting)

  • RocketReach (best for personal contact info)

  • UpLead (best for guaranteed email accuracy)

  • Seamless.AI (best for AI-powered lead generation)

  • Adapt.io (best for technographic data)

  • Datanyze (best for technology tracking)

  • LeadIQ (best for Salesforce workflows)

  • Crunchbase (best for startup + funding data)

  • D&B Hoovers (best for firmographic + financial data)

  • SalesIntel (best for human-verified data)

Let's go over each one in depth.

1. FullEnrich (best for maximum data coverage via waterfall)

  • Category: Waterfall enrichment

  • Best for: Maximum data coverage across multiple sources

  • Ease of use: Beginner

  • Pricing: Free plan, paid starts at $29/month

Yes, this is us. But we built FullEnrich to solve a real problem we kept hitting: single-source b2b data providers have 20-40% coverage at best. If Apollo doesn't have an email, you're stuck. If Lusha misses a phone number, you move on empty-handed.

We got tired of that, so we built something better.

How FullEnrich works

FullEnrich is a waterfall enrichment platform. We query 20+ premium data sources in sequence until we find verified contact information. The platform uses triple email verification including specialized checks for catch-all emails that most providers can't validate. Our customers report bounce rates consistently under 2%.

What really sets us apart is geographic routing. Our waterfall intelligently selects providers based on region. Different data sources excel in different markets, and we automatically pick the best one for each contact.

👉 Try FullEnrich with 50 free credits today

Who is FullEnrich for?

RevOps and SalesOps leaders who need maximum data accuracy, flexible pricing, and GDPR-compliant enrichment without paying enterprise contract rates.

Pricing plans

  • Free: 50 enrichment credits

  • Start: $29/month (500 credits)

  • Pro: $55/month (1000 credits)

  • Scale: $500/month (Custom credits)

Credits roll over for up to 3 months, and you get unlimited seats on every plan.

👉 Try FullEnrich with 50 free credits today

Pros and cons

Pros

Cons

85%+ match rates across industries

We're enrichment only not a sales suite

Triple-verified emails reduce bounces


Transparent, usage-based pricing with rollover


GDPR/CCPA compliant with audit-ready processes


Unlimited seats on every plan


FullEnrich rating and reviews

  • G2: 4.8 out of 5 stars (see reviews)

  • Product Hunt: Featured product

👉 Try FullEnrich with 50 free credits today

2. Clay (best for programmable data workflows)

  • Category: Waterfall enrichment + automation

  • Best for: Programmable data workflows

  • Ease of use: Intermediate to advanced

  • Pricing: Free plan, paid starts at $149/month

Clay is one of the hottest tools in the sales tech space right now, and for good reason. Founded in 2017, Clay has raised over $60M in funding and counts companies like Notion, Ramp, and Anthropic as customers.

What makes Clay different from traditional b2b data providers is the philosophy. Instead of giving you a static database to search, Clay lets you build automated workflows that pull from 50+ data providers and enrich leads exactly how you want. Think of it as Zapier meets Airtable meets every data provider, all in one interface.

How Clay works

Clay reimagines the spreadsheet as a programmable data engine. You can connect to 50+ data providers (Clearbit, Apollo, Hunter, LinkedIn, OpenAI) and build automated enrichment workflows with conditional logic. The Claygent AI agent researches companies on your behalf by browsing the web, then reports back with qualifying information.

Who is Clay for?

Technical growth teams with "engineering DNA" who want to build custom data workflows rather than just buy lists. It's particularly powerful for agencies managing multiple clients with different enrichment needs.

Pricing plans

  • Free: $0/month with limited credits

  • Starter: $149/month

  • Explorer: $349/month

  • Pro: $800/month

Pros and cons

Pros

Cons

50+ data provider integrations

Steeper learning curve than simpler tools

AI agent for automated research

Can get expensive at scale

Powerful workflow automation

Requires "building" vs just "buying" lists

Best-in-class UI/UX

Entry pricing tough for solo operators

Clay rating and reviews

  • G2: 4.9 out of 5 stars (see reviews)

  • Product Hunt: #1 Product of the Day

3. ZoomInfo (best for enterprise US sales intelligence)

  • Category: Enterprise sales intelligence

  • Best for: Comprehensive US B2B data + full GTM platform

  • Ease of use: Beginner to advanced

  • Pricing: Custom pricing, typically $15,000-$30,000/year

If you've spent any time in B2B sales, you've heard of ZoomInfo. It's the 800-pound gorilla of the b2b data provider market, a publicly traded company with over $1.2 billion in annual revenue and 260M+ contacts in their database.

ZoomInfo has been on an acquisition spree: Chorus.ai for conversation intelligence, Datanyze for technographics, and several other companies to build what they call their "Revenue Operating System."

How ZoomInfo works

ZoomInfo isn't just a contact database anymore. It's a full platform with SalesOS, MarketingOS, TalentOS, and OperationsOS. The platform includes buyer intent data, technographics, website visitor tracking, and conversation intelligence. You can upload existing contact lists for enrichment, build new lists using 200+ search filters, or use the Chrome extension while browsing LinkedIn.

Who is ZoomInfo for?

Enterprise sales and marketing teams with significant budgets ($15K-$100K+/year). If you're a startup or SMB on a tight budget, ZoomInfo is probably overkill. Apollo.io gives you 80% of the functionality at 10% of the price.

Pricing plans

ZoomInfo doesn't publish pricing. Based on market feedback:

  • Professional: ~$15,000-$25,000/year

  • Advanced: ~$25,000-$50,000/year

  • Elite: $50,000-$100,000+/year

Annual contracts only. Watch out for aggressive auto-renewal clauses.

Pros and cons

Pros

Cons

260M+ contacts, 100M+ companies

Very expensive ($15K-$100K+/year)

Comprehensive GTM platform

Opaque pricing requires sales calls

Best-in-class North American coverage

European and APAC data notably weaker

Intent data, technographics built in

Aggressive contract auto-renewals

ZoomInfo rating and reviews

  • G2: 4.5 out of 5 stars (see reviews)

  • Capterra: 4.1 out of 5 stars

4. Apollo.io (best for budget-friendly all-in-one sales)

  • Category: All-in-one sales platform

  • Best for: Budget-friendly prospecting + engagement

  • Ease of use: Beginner to intermediate

  • Pricing: Free plan available, paid starts at $49/month

Apollo.io has done something remarkable: they've essentially commoditized the b2b data market. What ZoomInfo charges $15K+/year for, Apollo offers at $49/month with a genuinely useful free tier on top.

Founded in 2015, Apollo has grown to 275M+ contacts and over 2 million users. We integrate Apollo as one of our waterfall data sources, so we see their data quality firsthand. For US contacts, it's solid, not quite ZoomInfo quality, but remarkably good for the price.

How Apollo.io works

Apollo is an end-to-end sales platform built around a massive contact database. You get 275M+ contacts with 30+ data points each, built-in sequences for automated email outreach, an integrated dialer, Chrome extension, buyer intent data, and analytics. The free tier gives you 10,000 email credits per year for $0.

Who is Apollo.io for?

Startups who need sales intelligence but can't afford ZoomInfo. SMBs wanting an all-in-one solution. Individual SDRs who need to prospect independently. Agencies managing outreach for multiple clients.

Pricing plans

  • Free: $0/month with 10,000 email credits/year

  • Basic: $49/user/month

  • Professional: $79/user/month

  • Organization: $119/user/month

Pros and cons

Pros

Cons

Genuinely useful free tier (10K credits/year)

Data accuracy around 60-70%

275M+ contacts in database

Has had data breaches in past

All-in-one: data + sequences + dialer

International data needs improvement

Affordable paid plans

Can feel overwhelming with features

Apollo.io rating and reviews

  • G2: 4.8 out of 5 stars (see reviews)

  • Capterra: 4.6 out of 5 stars

5. Cognism (best for GDPR compliance and europe data)

  • Category: Enterprise sales intelligence

  • Best for: GDPR compliance + phone-verified mobile data

  • Ease of use: Intermediate

  • Pricing: Custom, typically $15,000/year+

Cognism is what happens when you build a b2b data provider with European compliance as the foundation, not an afterthought. Founded in London in 2015, Cognism has become the go-to choice for companies who need GDPR-compliant data and strong European coverage.

What really sets Cognism apart is Diamond Data, their phone-verified mobile numbers. Unlike most providers who pattern-match or algorithmically guess phone numbers, Cognism employs a team that actually calls to verify mobiles are correct and reachable.

How Cognism works

Cognism combines a large contact database with compliance-first features: Diamond Data phone-verified mobiles, 400M+ business profiles, intent data via Bombora partnership, DNC checking against 13+ global Do Not Call lists, and compliance workflows ensuring GDPR/CCPA alignment.

Who is Cognism for?

Companies selling into Europe who need GDPR-compliant data. Regulated industries (finance, healthcare) where compliance is mandatory. Phone-heavy sales teams who need verified mobile numbers.

Pricing plans

Custom pricing based on team size:

  • Small teams (5-10 users): ~$15,000/year

  • Mid-market (20-50 users): ~$15,000-$25,000/year

  • Enterprise: Custom pricing

Pros and cons

Pros

Cons

Phone-verified mobiles (Diamond Data)

Higher cost ($15K+/year minimum)

13+ DNC list checks globally

Custom quotes only

Strong EMEA coverage (98% accuracy)

US data not as strong as ZoomInfo

Bombora intent integration included

Requires annual contracts

Cognism rating and reviews

  • G2: 4.6 out of 5 stars (see reviews)

  • Capterra: 4.6 out of 5 stars

6. Lusha (best for Chrome extension lookups)

  • Category: Chrome extension + contact database

  • Best for: Quick LinkedIn lookups

  • Ease of use: Beginner

  • Pricing: Free plan, paid starts at $29/month

Lusha is the simple, fast option in a world of increasingly complex sales tools. Founded in Israel in 2016, the company has grown to 800,000+ users by doing one thing really well: instant contact lookups while you browse LinkedIn.

We've tested pretty much every Chrome extension for contact finding, and Lusha's is the snappiest. Click the extension, get the email and phone, move on.

How Lusha works

Install the Chrome extension, browse LinkedIn or any website, click the Lusha icon, get email and phone number instantly. Beyond the extension, Lusha now offers a prospecting platform for building targeted lists, intent signals, job change alerts, and CRM integrations.

Who is Lusha for?

Individual SDRs who need quick lookups without complexity. Small sales teams (2-5 people) with light enrichment needs. Recruiters sourcing candidates on LinkedIn.

Pricing plans

  • Free: 5 credits/month

  • Pro: $29/month for 40 credits

  • Premium: $51/month for 80 credits

  • Scale: $79/month

Credits don't roll over month-to-month.

Pros and cons

Pros

Cons

Snappiest Chrome extension on market

Lower data accuracy (60-70% match rate)

Works on any website

Limited EU/global coverage

Zero learning curve

Credit caps restrict high-volume users

Free plan to test

Shallow enrichment beyond basic details

Lusha rating and reviews

  • G2: 4.3 out of 5 stars (see reviews)

  • Capterra: 4.0 out of 5 stars

7. Kaspr (best for European LinkedIn prospecting)

  • Category: Chrome extension + European data

  • Best for: GDPR-compliant European LinkedIn prospecting

  • Ease of use: Beginner

  • Pricing: Free plan, paid starts at €30/month

Kaspr is essentially "Lusha for Europe" but with one crucial difference: unlimited email search on paid plans instead of restrictive credit caps.

Founded in France in 2018, Kaspr was acquired by Cognism in 2022. This acquisition gave Kaspr access to Cognism's European data infrastructure while maintaining its focus on simplicity and LinkedIn-based prospecting.

How Kaspr works

Install the extension, browse LinkedIn or Sales Navigator, click to reveal contact details, export to CRM or CSV. What sets Kaspr apart: 120M+ European contacts with strong GDPR compliance, unlimited email lookups on paid plans, and LinkedIn automation features.

Who is Kaspr for?

European-focused SDRs who need compliant data. Recruiters sourcing across EMEA. SMBs who want Cognism-quality data without enterprise pricing. Email-first teams who need unlimited lookups.

Pricing plans

  • Starter: €30/month (unlimited emails, 100 phone credits)

  • Business: €55/month (unlimited emails, 200 phone credits)

  • Organization: €85/month (team features)

Pros and cons

Pros

Cons

Unlimited email search on paid plans

Phone credits still limited

120M+ European contacts

Smaller database than ZoomInfo/Apollo

GDPR-compliant by design

US data not as strong

Owned by Cognism

LinkedIn-dependent

Kaspr rating and reviews

8. Dealfront (best for European market intelligence)

  • Category: European market intelligence

  • Best for: European company data + website visitor ID

  • Ease of use: Intermediate

  • Pricing: Custom pricing

Dealfront is what you get when two European B2B data companies (Echobot and Leadfeeder) merge to take on the American giants. The 2023 combination created the most comprehensive European-focused sales intelligence platform on the market.

What makes Dealfront unique is the data sourcing. While most b2b data providers scrape the web and buy third-party lists, Dealfront pulls directly from official sources: national trade registers, commercial registers, and government databases across Europe.

How Dealfront works

Dealfront combines company database (40M+ European companies), contact data (180M+ contacts), website visitor identification (Leadfeeder functionality), trigger events, and CRM integrations. The trade register data is particularly valuable for accurate European company information.

Who is Dealfront for?

Companies selling into Europe (especially DACH region). B2B businesses requiring compliant data for EU operations. Marketing teams wanting website visitor intelligence.

Pricing plans

Modular pricing based on which products you need. Contact sales for quotes. Typically €10,000-€50,000/year depending on modules and team size.

Pros and cons

Pros

Cons

Deep European trade register data

US coverage significantly weaker

Website visitor identification

Modular pricing can get complex

ISO 27001 and ISO 27701 certified

Requires talking to sales

Strong DACH coverage

Some features feel stitched together

Dealfront rating and reviews

9. 6sense (best for predictive ABM + intent data)

  • Category: Predictive ABM + intent data

  • Best for: Enterprise account-based marketing

  • Ease of use: Advanced

  • Pricing: Custom, typically $60,000-$150,000+/year

6sense represents the cutting edge of B2B data, moving beyond static contact databases to AI-powered predictions about who's going to buy. The company has raised over $400M in funding and counts enterprise giants like Salesforce, Dell, and Zendesk as customers.

The core philosophy is compelling: 97% of B2B buying research happens before a vendor is ever contacted. 6sense calls this the "Dark Funnel" and uses AI to predict which accounts are in-market and ready for outreach.

How 6sense works

6sense combines predictive AI that scores accounts based on buying likelihood, intent data tracking research behavior across the web, "Dark Funnel" visibility identifying anonymous visitors, buying stage identification, contact data via Slintel acquisition, and ABM advertising.

Who is 6sense for?

Enterprise B2B companies with six-figure marketing budgets. ABM-focused organizations running sophisticated programs. Companies with long, complex sales cycles where early identification matters.

Pricing plans

Enterprise-only, entirely custom:

  • Mid-market: ~$60,000-$80,000/year

  • Enterprise: $100,000-$150,000+/year

  • Large enterprise with advertising: $200,000+/year

Pros and cons

Pros

Cons

AI-powered buyer predictions work

Very expensive ($60K-$150K+/year)

"Dark Funnel" visibility is unique

Enterprise-only

Slintel contact data integration

Complex implementation (2-3 months)

Predictive account scoring

Can feel like a black box

6sense rating and reviews

  • G2: 4.3 out of 5 stars (see reviews)

  • Capterra: 4.4 out of 5 stars

10. Bombora (best for buyer intent signals)

  • Category: Intent data

  • Best for: Buyer intent signals

  • Ease of use: Intermediate

  • Pricing: Custom, typically $20,000-$50,000+/year

Bombora owns the concept of "Company Surge," the idea that you can identify when businesses are actively researching topics related to your product by tracking content consumption patterns. It's the gold standard for B2B intent data.

Founded in 2014, Bombora built something unique: a data cooperative of 5,000+ B2B publishers who share anonymized content consumption data.

How Bombora works

5,000+ B2B publishers share anonymized consumption data. Bombora tracks what topics each company normally reads. When consumption spikes above baseline, it's flagged as intent. 12,000+ topics categorized for precise targeting. Intent data pushed to your CRM, MAP, or sales tools.

Who is Bombora for?

Enterprise ABM programs that need intent signals. Marketing teams prioritizing accounts for campaigns. Any B2B organization with budget for premium intent data. Note: Bombora is intent data only, no contact information included.

Pricing plans

  • Direct from Bombora: ~$20,000-$50,000+/year

  • Via partners: Often bundled with platforms like HubSpot, Cognism, or Lead411

Pros and cons

Pros

Cons

Gold standard for B2B intent accuracy

Intent data only, no contacts

5,000+ publisher cooperative

Expensive ($20K-$50K+/year)

GDPR-friendly consent-based collection

Requires pairing with contact provider

12,000+ topic taxonomy

Can generate too many "surging" accounts

Bombora rating and reviews

11. Demandbase (best for account-based advertising)

  • Category: ABM advertising + intent data

  • Best for: Account-based advertising at scale

  • Ease of use: Advanced

  • Pricing: Custom, typically $50,000-$200,000+/year

Demandbase is 6sense's primary rival in the ABM platform wars. While 6sense emphasizes predictive AI, Demandbase has traditionally led with account-based advertising, the ability to serve targeted display ads to specific companies, not just demographics.

The company has been on an acquisition spree: InsideView for sales intelligence, DemandMatrix for technographics, and Engagio for account-based orchestration.

How Demandbase works

Demandbase combines ABM analytics, a B2B-specific advertising DSP for account-targeted display ads, website personalization, sales intelligence via InsideView, and orchestration workflows based on account signals.

Who is Demandbase for?

Enterprise B2B marketers running ABM advertising. Marketing teams needing account-level targeting at scale. Organizations wanting integrated advertising + intent + sales intelligence.

Pricing plans

Enterprise pricing, entirely custom:

  • Mid-market: ~$50,000-$60,000/year

  • Enterprise: ~$100,000-$150,000/year

  • Full platform with advertising: $200,000+/year

Pros and cons

Pros

Cons

B2B-specific advertising DSP

Very expensive ($50K-$200K+/year)

Strong account intelligence

Complex implementation

Comprehensive ABM platform

No comprehensive contact data

Deep CRM integrations

Advertising requires separate budget

Demandbase rating and reviews

12. Hunter.io (best for email finding + verification)

  • Category: Email finding + verification

  • Best for: Finding and verifying email addresses

  • Ease of use: Beginner

  • Pricing: Free plan, paid starts at $49/month

Hunter.io is the specialist's choice for email, nothing more, nothing less. While other tools try to do everything, Hunter focuses exclusively on finding and verifying business email addresses.

Founded in France in 2015, Hunter has grown to 4M+ users by being really good at one thing. We use Hunter as one of our waterfall sources specifically for email finding.

How Hunter.io works

Domain Search: Enter a company domain, get all publicly available emails. Email Finder: Enter a name and company, get the likely email address. Email Verifier: Check if an email is deliverable before sending. The Chrome extension lets you find emails while browsing LinkedIn or any company website.

Who is Hunter.io for?

Email-first outreach teams who don't need phone data. Marketers building email campaigns. Technical users who want API access for automation. Budget-conscious teams needing just email verification.

Pricing plans

  • Free: 25 searches/month + 50 verifications

  • Starter: $49/month (500 searches)

  • Growth: $149/month (5,000 searches)

  • Business: $499/month (50,000 searches)

Pros and cons

Pros

Cons

Best-in-class email finding (80-85% accuracy)

Email only, no phone numbers

Email verification prevents bounces

No firmographic or intent data

Simple, focused product

Less useful for small companies

Generous free tier

No direct LinkedIn integration

Hunter.io rating and reviews

  • G2: 4.4 out of 5 stars (see reviews)

  • Capterra: 4.6 out of 5 stars

13. Clearbit (Breeze Intelligence) : best for HubSpot data enrichment

  • Category: Data enrichment

  • Best for: HubSpot real-time enrichment

  • Ease of use: Beginner to intermediate

  • Pricing: Custom pricing (HubSpot-native)

Clearbit was the darling of the data enrichment world for years, the tool that growth teams at companies like Segment, Notion, and Intercom used. Then HubSpot acquired them in 2023 and rebranded as "Breeze Intelligence."

The core strength is real-time enrichment. Give Clearbit an email address, and it returns 85+ data points about the person and company instantly.

How Clearbit works

Now integrated into HubSpot, the product enriches CRM records automatically, provides buyer intent signals, shortens forms to improve conversion, and enables lead scoring based on fit. Note: This is no longer a standalone product outside HubSpot.

Who is Clearbit for?

HubSpot users who want native enrichment. Growth teams building automated lead processing. Marketing ops professionals implementing lead scoring. Note: Not suited for non-HubSpot users.

Pricing plans

Available only as part of HubSpot packages. No standalone pricing.

Pros and cons

Pros

Cons

Excellent real-time enrichment quality

No standalone product outside HubSpot

85+ data attributes per record

No verified contacts or direct dials

Easy to set up inside HubSpot

Limited beyond basic company data

Useful for firmographic enrichment

Not a true Apollo competitor anymore

Clearbit rating and reviews

  • G2: 4.4 out of 5 stars (see reviews)

  • Capterra: 4.5 out of 5 stars

14. Lead411 (best for trigger-based prospecting)

  • Category: All-in-one sales platform

  • Best for: Trigger-based prospecting + intent data

  • Ease of use: Beginner to intermediate

  • Pricing: Starts at $75/month

Lead411 is the unglamorous workhorse of B2B data, no flashy AI, just solid contact data with killer differentiators: unlimited exports and Bombora intent data included on Pro plans.

The trigger data tracks real-time events like funding rounds, leadership changes, new hires, and office expansions. These triggers help you time outreach when prospects are most likely to buy.

How Lead411 works

Contact database with triple-verified emails and direct dials. Company intelligence with firmographic data. Trigger alerts for funding, hiring, and leadership changes. Intent data powered by Bombora on Pro plans. CRM integrations with Salesforce, HubSpot, Zoho, Pipedrive.

Who is Lead411 for?

Mid-market sales teams that need verified contact data and intent signals. Trigger-based sellers timing outreach to events. Organizations needing intent data without Bombora's price tag.

Pricing plans

  • Basic: $75/month (1,000 exports)

  • Pro: $150/month (2,000 exports, includes Bombora intent)

  • Enterprise: Custom pricing

Pros and cons

Pros

Cons

Triple-verified emails (95%+ accuracy)

Database not as vast as ZoomInfo

Includes Bombora intent data

Less EU/global coverage

Strong trigger/event data

UI feels dated

Unlimited exports

Credit limits on some plans

Lead411 rating and reviews

  • G2: 4.5 out of 5 stars (see reviews)

  • Capterra: 4.6 out of 5 stars

15. RocketReach (best for personal contact info)

  • Category: Contact finding

  • Best for: Personal + professional contact info

  • Ease of use: Beginner to intermediate

  • Pricing: Free plan, paid starts at $39/month

RocketReach occupies an interesting niche: it bridges professional and personal contact data. While most B2B providers focus exclusively on work emails, RocketReach also surfaces personal Gmail addresses, direct phone numbers, and social profiles.

The database spans 700M+ profiles, larger than most pure B2B providers because it includes personal information beyond business contacts.

How RocketReach works

Name + Company search for specific individuals. Bulk search for mass enrichment. Advanced filters by title, location, skills, education. Browser extension for LinkedIn and company sites. Data includes work emails, personal emails, phone numbers, and social profiles.

Who is RocketReach for?

Recruiters sourcing candidates (personal emails bypass HR). PR professionals reaching journalists and influencers. Sales teams wanting backup contact methods. Researchers gathering comprehensive profiles.

Pricing plans

  • Essentials: $39/month (170 lookups)

  • Pro: $99/month (370 lookups)

  • Ultimate: $249/month (1,590 lookups)

Pros and cons

Pros

Cons

700M+ profiles

Lookup limits restrictive

Personal and work contact info

Interface feels dated

Strong for recruiting and PR

Expensive at high volume

API available for automation

No intent or firmographic data

RocketReach rating and reviews

  • G2: 4.5 out of 5 stars (see reviews)

  • Capterra: 4.2 out of 5 stars

16. UpLead (best for guaranteed email accuracy)

  • Category: B2B contact database

  • Best for: Guaranteed email accuracy

  • Ease of use: Beginner

  • Pricing: Starts at $74/month

UpLead has built its entire brand around one promise: 95% email accuracy, guaranteed. In a market full of inflated claims, UpLead backs theirs with credits: if an email bounces, you get the credit back.

The real-time verification is key. When you download a contact, UpLead checks the email against the mail server right then, not days or weeks ago.

How UpLead works

155M+ B2B contacts with verified emails. Real-time verification at download time. 50+ search filters including technographics. CRM integrations with Salesforce, HubSpot, Pipedrive, Zoho. Credits roll over month-to-month.

Who is UpLead for?

Quality-focused teams tired of bounced emails. Email marketers protecting sender reputation. SMBs wanting reliable data without enterprise pricing.

Pricing plans

  • Essentials: $74/month (credits included)

  • Plus: $149/month

  • Professional: $299/month

  • Enterprise: Custom pricing

Pros and cons

Pros

Cons

95% accuracy guarantee (backed by refunds)

Smaller database (155M vs competitors' 275M+)

Real-time email verification

US-focused

Credits roll over month-to-month

Phone data isn't the strength

50+ search filters

Intent data costs extra

UpLead rating and reviews

  • G2: 4.7 out of 5 stars (see reviews)

  • Capterra: 4.6 out of 5 stars

17. Seamless.AI (best for AI-powered lead generation)

  • Category: AI-powered lead generation

  • Best for: High-volume US prospecting

  • Ease of use: Intermediate

  • Pricing: Free plan, custom pricing for paid plans

Seamless.AI takes a fundamentally different approach to B2B data: instead of maintaining a static database, it uses AI to crawl the web and find contact information in real-time. The company markets itself as a cheaper ZoomInfo alternative with AI-powered accuracy.

Our experience with Seamless has been mixed. When it works, you find contacts that other databases miss. When it doesn't, you get outdated or incorrect information. User reviews reflect this polarization.

How Seamless.AI works

You search with criteria (title, company, location). AI crawls the web in real-time. Results returned with contact information. Emails checked for deliverability. Chrome extension and CRM integrations included.

Who is Seamless.AI for?

US-focused sales teams wanting AI-powered prospecting. Users who've hit walls with static databases. Teams willing to trade some accuracy for coverage.

Pricing plans

  • Free: Limited credits to test

  • Pro: ~$147/month (annual commitment typically required)

  • Enterprise: Custom pricing

Watch auto-renewal terms carefully.

Pros and cons

Pros

Cons

Real-time AI search finds contacts others miss

Accuracy inconsistent (60-75% match rates)

Large US contact volume

Billing transparency concerns in reviews

User-friendly Chrome extension

Compliance questions (GDPR/CCPA)

CRM integrations available

Annual contracts pushed aggressively

Seamless.AI rating and reviews

  • G2: 4.3 out of 5 stars (see reviews)

  • Capterra: 4.2 out of 5 stars

18. Adapt.io (best for technographic data)

  • Category: Technographic data

  • Best for: Tech stack targeting

  • Ease of use: Beginner to intermediate

  • Pricing: Free plan, paid starts at ~$39/month

Adapt.io combines contact data with technographic intelligence. The platform tracks 10,000+ technologies, letting you filter prospects by the tools they already use.

This enables powerful displacement campaigns (targeting companies using your competitor) or integration plays (targeting companies using tools you integrate with).

How Adapt.io works

Contact database with 100M+ contacts and 30M+ companies. Technographic data tracking 10,000+ technologies. Lead builder filtering by tech stack and firmographics. Chrome extension for LinkedIn prospecting. CRM integrations with Salesforce, HubSpot, Pipedrive.

Who is Adapt.io for?

SaaS companies running competitive displacement. Sales teams wanting tech stack context for pitches. Marketing teams building technology-based segments.

Pricing plans

  • Free: Limited credits to test

  • Starter: ~$39/month per user

  • Professional: Custom pricing

  • Enterprise: Custom pricing

Pros and cons

Pros

Cons

10,000+ technologies tracked

Smaller database than major competitors

Excellent for displacement campaigns

US-focused

Clean, modern interface

Phone accuracy varies

Good value at entry level

Limited intent data

Adapt.io rating and reviews

  • G2: 4.6 out of 5 stars (see reviews)

  • Capterra: 4.5 out of 5 stars

19. Datanyze (best for technology tracking)

  • Category: Technographic data

  • Best for: Technology tracking

  • Ease of use: Beginner

  • Pricing: Free plan, paid starts at $21/month

Datanyze pioneered the technographic data space, tracking what technologies companies use by analyzing their websites. ZoomInfo acquired them in 2020, but the standalone product still exists for users who want affordable tech tracking.

The tool tracks 60,000+ technologies across websites globally.

How Datanyze works

Technology tracking detecting 60,000+ technologies on websites. Contact data with business emails and phone numbers. Chrome extension showing technographics while browsing. Technology change alerts when companies add/drop tools.

Who is Datanyze for?

Individual sales reps wanting affordable tech tracking. Small teams who don't need full ZoomInfo. Competitive analysts tracking technology adoption.

Pricing plans

  • Free: Limited searches to test

  • Nyze Pro 1: $21/month (80 credits)

  • Nyze Pro 2: $39/month (160 credits)

Pros and cons

Pros

Cons

60,000+ technologies tracked

Contact data limited

Very affordable entry pricing

Owned by ZoomInfo (may be sunset)

Technology change alerts

No intent or ABM features

90-day free trial

Future uncertain

Datanyze rating and reviews

20. LeadIQ (best for Salesforce workflows)

  • Category: Sales prospecting

  • Best for: Salesforce workflows

  • Ease of use: Beginner to intermediate

  • Pricing: Free plan, paid starts at $39/month

LeadIQ focuses on something specific: keeping your CRM clean while prospecting. Instead of dumping contacts into Salesforce and dealing with duplicates later, LeadIQ checks for existing records and enriches them in real-time.

Job change tracking is another standout feature. When prospects move companies, LeadIQ detects it and alerts your team.

How LeadIQ works

Contact capture while browsing LinkedIn. CRM sync with real-time duplicate checking and enrichment. Job change tracking alerts. AI email writer for personalized outreach. Sequences integration to push contacts directly to cadences.

Who is LeadIQ for?

Salesforce-heavy sales teams prioritizing CRM hygiene. SDRs prospecting on LinkedIn. Sales ops professionals managing data quality.

Pricing plans

  • Free: Limited captures per month

  • Essential: $39/user/month

  • Pro: $79/user/month

  • Enterprise: Custom pricing

Pros and cons

Pros

Cons

Excellent Salesforce integration

Mobile number limits on all plans

Real-time duplicate checking

Smaller database than competitors

Job change tracking is valuable

Salesforce-specific value

AI email personalization

Not for bulk list building

LeadIQ rating and reviews

21. Crunchbase (best for startup + funding data)

  • Category: Company intelligence

  • Best for: Startup + funding data

  • Ease of use: Beginner

  • Pricing: Starts at $29/month

Crunchbase is the definitive source for startup and funding intelligence. If a company has raised venture capital, Crunchbase probably knows about it, often within hours of the announcement.

The database tracks 3M+ companies with detailed funding histories: rounds, amounts, investors, valuations.

How Crunchbase works

Company profiles with 3M+ companies. Funding data with rounds, amounts, investors, valuations. Investor profiles tracking VCs and portfolios. M&A tracking for acquisitions, IPOs, and exits. News with same-day updates on funding announcements.

Who is Crunchbase for?

Sales teams targeting startups (funded companies have budget). Investors tracking deal flow. Competitive analysts monitoring the landscape. Note: No direct contact data (no emails/phones).

Pricing plans

  • Starter: $29/month

  • Pro: $49/month

  • Enterprise: Custom

Pros and cons

Pros

Cons

Definitive source for funding data

No direct contact data

Same-day updates on announcements

US startup-focused

3M+ company profiles

Some data is self-reported

Affordable pricing

Need separate tool for contacts

Crunchbase rating and reviews

  • G2: 4.5 out of 5 stars (see reviews)

  • Capterra: 4.2 out of 5 stars

22. D&B Hoovers (best for firmographic + financial data)

  • Category: Company intelligence

  • Best for: Firmographic + financial data

  • Ease of use: Intermediate

  • Pricing: Starts at ~$5,388/year

Dun & Bradstreet has been in the business data game for over 180 years, longer than any other provider on this list. D&B Hoovers is their sales intelligence product, offering deep firmographic and financial data on 330M+ companies globally.

What sets D&B apart is the depth: corporate hierarchies, subsidiary relationships, financial risk scores, payment histories. The D-U-N-S number is effectively the industry standard for B2B company identification.

How D&B Hoovers works

Company database with 330M+ business records globally. Firmographic data including industry, size, revenue. Corporate hierarchies with parent companies, subsidiaries, branches. Financial data with credit scores, payment behavior, risk assessment.

Who is D&B Hoovers for?

Enterprise sales teams targeting large, complex organizations. Finance teams doing credit checks and due diligence. Global organizations tracking international accounts.

Pricing plans

  • Essentials: ~$5,388/year

  • Enterprise: Custom pricing

Pros and cons

Pros

Cons

330M+ companies globally

Expensive ($5K+/year entry)

180+ years of business data history

Contact data accuracy lags

D-U-N-S numbers are industry standard

Interface feels dated

Deep corporate hierarchies

Annual contracts only

D&B Hoovers rating and reviews

  • G2: 4.0 out of 5 stars (see reviews)

  • Capterra: 4.1 out of 5 stars

23. SalesIntel (best for human-verified data)

  • Category: Human-verified data

  • Best for: Maximum accuracy via human verification

  • Ease of use: Intermediate

  • Pricing: Custom, annual commitment

SalesIntel takes a fundamentally different approach to data accuracy: human verification. While most providers use algorithms and automated validation, SalesIntel employs a research team to manually verify contact information.

The "Research-on-Demand" feature is unique. If you need contacts at a specific company and they're not in the database, SalesIntel's research team will find them for you.

How SalesIntel works

Human-verified contacts validated manually by research team. 95% accuracy guarantee backed by verification processes. Research-on-Demand for custom research needs. Intent data via Bombora integration. Re-verification every 90 days to catch job changes.

Who is SalesIntel for?

Accuracy-obsessed teams tired of bad data. Organizations where data quality directly impacts revenue. Enterprise sales needing reliable contact information.

Pricing plans

Custom pricing based on needs. Annual commitment required. Based on market feedback: ~$10,000-$25,000+/year. Intent data and Research-on-Demand included.

Pros and cons

Pros

Cons

95% accuracy backed by human verification

Custom pricing only

Research-on-Demand for custom needs

Annual commitment required

90-day re-verification cycle

Smaller database than major competitors

Bombora intent data included

Human research adds delays

SalesIntel rating and reviews

  • G2: 4.4 out of 5 stars (see reviews)

  • Capterra: 4.3 out of 5 stars


How do data vendors collect and compile data?

B2B data providers collect and compile data from multiple sources:

  • Public records: Company registrations, trade registers, filings

  • Web scraping: Publicly available information from websites and social profiles

  • Data partnerships: Agreements with other data companies

  • Contributory networks: Users share contact information in exchange for access

  • Publisher cooperatives: Intent data from content consumption (like Bombora's 5,000+ B2B publishers)

  • Human verification: Research teams manually validating contact data

When they have raw data, vendors process, clean, and verify it to ensure data accuracy. Some b2b data suppliers also enrich data with additional context to create more comprehensive datasets.

Important: Ensure your data vendor uses compliant data collection methods. Using personal data that violates data protection regulations like GDPR or CCPA will result in hefty fines.

Why use a B2B data vendor?

Using a b2b data provider offers several benefits:

  • Better leads: B2B data vendors give you access to up-to-date company and contact information. This helps identify and target potential leads more effectively instead of wasting time on bad-fit prospects.

  • Improved campaigns: With accurate data, you can develop targeted marketing campaigns that connect with your audience and drive higher conversion rates.

  • Cost savings: Data collection, cleaning, and verification are labor-intensive. Outsourcing to b2b data vendors saves money because you won't need internal resources for these tasks.

  • Market intelligence: B2B data providers help you understand market trends, competitor activity, and customer behavior for better business decisions.

  • More sales opportunities: Access to high-quality b2b data helps identify new opportunities and expand your customer base.

In short, the right b2b data vendor helps streamline operations, improve decision-making, increase sales, and grow your business with accurate and reliable data.

Risks to avoid when choosing a B2B data provider

When selecting a b2b data vendor, watch out for these common risks:

  • Lack of transparency: Red flag if a vendor won't disclose data sources or collection methods. You need to know they're adhering to ethical practices.

  • Poor reputation: Research the b2b data provider online. No reviews or bad reviews mean skip to the next option, even if pricing is cheap.

  • Inaccurate data: Verify that data provided is accurate and up-to-date. Inaccurate data wastes resources and damages your sender reputation.

  • Non-compliance with data privacy regulations: Your data vendor must supply compliant data. GDPR fines reach €20M or 4% of global revenue. CCPA fines hit $7,500 per violation.

Lack of data security: Ensure solid security measures are in place. Data breaches expose you and your customers to risk.

How to choose a B2B data vendor

When picking a b2b data provider, look for:

  1. Data quality: The data should be accurate, complete, and relevant to your business needs. Ask about verification processes and data freshness.

  2. Data sources: The vendor should be transparent about where data comes from and how it's collected. This ensures compliance with data protection regulations.

  3. Data coverage: Evaluate geographic and industry coverage. Many US-focused providers have weak European or APAC data.

  4. Data security: Look for ISO 27001, SOC 2, or similar certifications. The vendor should have solid security measures protecting your data.

  5. Customization: Choose data vendors who offer options specific to your needs rather than generic one-size-fits-all packages.

  6. Scalability: If you want long-term collaboration, ensure the vendor can scale services as your business grows.

  7. Pricing: Review packages and pricing to find options that fit your budget. Watch for hidden costs and restrictive contracts.

  8. Customer support: Pick a vendor who answers questions promptly and fixes issues quickly.

Choose FullEnrich for maximum data coverage

If you want a b2b data provider that queries 15+ premium sources to achieve 85%+ match rates — significantly higher than any single-source vendor — try FullEnrich.

Our waterfall enrichment approach means you get verified contact data from the best source for each specific contact, with triple email verification keeping bounce rates under 2%.

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Find emails & phone numbers of your prospects using 15+ data sources. Don't choose a B2B data vendor. Choose them all.

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