Choosing the right sales intelligence platform can be challenging, especially when you're weighing data accuracy against budget constraints.

UpLead and Lead411 are two prominent B2B contact data tools designed to help sales teams find qualified leads, emails, and phone numbers for outbound prospecting.

UpLead is known for real-time email verification and a 95%+ accuracy guarantee, with transparent pricing starting at $99/month.

Lead411 excels in providing triple-verified contact data with built-in Growth Intent signals, starting at $75/month annually.

I've evaluated both platforms to understand their strengths and limitations. In this comparison, I'll walk you through the key differences to help you decide which platform fits your lead generation needs.

I've also included FullEnrich for good measure, a waterfall enrichment platform that queries 20+ data sources sequentially to solve the coverage gaps both single-source platforms face.

TLDR: Our take upfront:

• UpLead delivers verified emails with a strong accuracy guarantee and simple monthly pricing. Works well for small to mid-size teams focused primarily on email outreach.

• Lead411 provides affordable pricing access to triple-verified data with intent signals included. Best for U.S.-focused sales teams who value buying signals.

• FullEnrich solves the single-source limitation by querying 15+ providers in sequence—achieving an 80%+ find rate without locking you into one vendor's coverage gaps.

At a Glance: UpLead vs Lead411 vs FullEnrich

Looking beyond Lead411 and UpLead? There are some Apollo alternatives or UpLead alternatives like FullEnrich worth exploring.

1. Data quality

The quality of your lead data directly impacts deliverability, reply rates, and pipeline growth.

UpLead distinguishes itself with real-time email verification. Every email gets verified at unlock, with a 95%+ accuracy guarantee. Bounced emails? You get the credit back automatically. The platform covers 160 million contacts across 200+ countries.

Phone numbers are included (direct dials, not company main lines), but the credit-back guarantee only applies to emails, not phone numbers.

Lead411 excels with triple-verified data and built-in intent signals. The platform verifies contacts at least every 3-6 months and advertises a 96% accuracy rate with a <5% email bounce rate.

Lead411's 450 million contact database includes comprehensive direct dial phone numbers. The platform includes Growth Intent signals (funding news, hiring trends, job changes) built into the data.

However, Lead411's coverage drops significantly outside North America. The database is heavily U.S.-focused, with secondary support for Canada, UK, Australia, and select European countries. One G2 reviewer noted they "would like it to be more global". Teams targeting EMEA or APAC will find patchier results.

Both platforms rely on single-source databases. When their source doesn't have the contact you need, that credit is spent with no result.

Waterfall enrichment changes the equation by querying 15+ data sources sequentially. If Apollo doesn't have the email, FullEnrich tries ContactOut, then Datagma, then 12 more providers.

Credits only consume when data is successfully found—no wasted credits on "not found" contacts. The platform achieves an 80%+ average find rate.

FullEnrich's dynamic provider selection automatically chooses the best source based on your lead's location, solving regional coverage gaps.

👉 Ready to skip ahead? Get 50 free credits and test FullEnrich's waterfall enrichment against your current provider.

Verdict:

For North American contact data: Lead411's triple verification and direct dial strength deliver reliable U.S. coverage at a competitive price.

For verified email accuracy: UpLead's real-time verification and credit-back guarantee (emails only) provide better peace of mind for email-focused campaigns.

For maximum coverage across geographies: Waterfall enrichment solves what both single-source platforms struggle with—finding contacts when one database comes up empty.

👉 Start using Full Enrich for Free with 50 credits No credit card required.

2. Pricing & Plans

How you pay for data determines budget predictability and whether credits go to waste.

UpLead offers three tiers:

• Essentials at $99/month (170 credits) or $74/month annually,

• Plus at $199/month (400 credits) or $149/month annually

• Professional with custom pricing.
  
  Monthly credits don't roll over—use them or lose them. Annual plans pool credits for the year but don't carry into renewals.

  One G2 reviewer mentioned frustration that unused credits are forfeited. UpLead requires 60-day cancellation notice for annual plans, and some users report needing to schedule a Zoom call to cancel.

👉 To learn more about Uplead pricing

Lead411 structures pricing across three tiers:

• Basic at ~$900/year ($75/month effective rate), Pro starting at ~$3,000/year with Bombora intent data, and Enterprise at $6,000+/year with unlimited exports.

• Basic can be canceled after one month, but Pro and Enterprise require annual commitments. Credits roll over indefinitely as long as your subscription remains active—a significant advantage.

• Pro and Enterprise pricing isn't public. Additional credits beyond plan limits cost $0.40-$0.50 each.

👉 To learn more about Lead411 pricing

FullEnrich takes a different approach:

• Starter at $29/month for 1,000 credits,

• Pro at $59/month for 1000 credits,

• Scale at $500/month for Custom volumes

• Credits roll over for 3 months (12 months on annual).

• Credits only consume when data is successfully found—if FullEnrich searches 15 sources and doesn't find an email, you pay nothing.

• Unlimited users are included on all plans.

👉 To learn more about FullEnrich pricing

Verdict:

For budget-conscious teams: FullEnrich delivers more credits per dollar with 3-month rollover and pay-only-when-found pricing.

For U.S.-focused prospecting: Lead411's annual Basic plan at $75/month offers good value with indefinite credit rollover.

For verified email focus: UpLead's credit-back guarantee on bounced emails (not phones) provides accuracy insurance despite higher per-credit costs.

👉 Start using Full Enrich for Free with 50 credits No credit card required.

3. Key Features

The right features streamline prospecting workflows rather than just existing on a feature list.

UpLead provides 50+ search filters including industry, company size, revenue, location, job title, and technographics. The search interface is praised for being clean and simple. You can build targeted lists directly in the platform and filter to show only verified emails before unlocking.

Lead411 offers robust search with 50+ filters and emphasizes Growth Intent signals. These buying signals track companies experiencing funding rounds, hiring surges, executive changes, and other trigger events—all included at Basic tier pricing. However, some users find the UI dated, with one G2 reviewer noting "the user interface is not intuitive."

FullEnrich doesn't provide search or database access—it's purely an enrichment platform. You bring your own leads from LinkedIn, your CRM, or uploaded CSVs, and FullEnrich finds the contact information.

All three platforms offer Chrome extensions. UpLead and Lead411 work on LinkedIn and company websites. FullEnrich integrates with LinkedIn Sales Navigator for unlimited exports and bulk enrichment.

Verdict:

For intent-driven prospecting: Lead411's built-in Growth Intent signals provide timing advantages at Basic plan pricing.

For search simplicity: UpLead's clean interface and real-time verification deliver straightforward prospecting.

For API-first enrichment: FullEnrich's waterfall approach and full API access on all plans enable automated workflows.

4. CRM Integration & Workflow Automation

Integration depth affects whether enrichment happens automatically or requires manual CSV uploads.

UpLead offers native one-click integrations with major CRMs and sales engagement tools like Outreach, Salesloft, and Lemlist. Professional tier supports bi-directional sync. UpLead scores 8.7/10 for CRM Integration on G2.

Lead411 provides native integrations with 25+ platforms. The Salesforce integration is particularly praised—one user noted "the integration into Salesforce is flawless." Lead411 offers a Contact Enrichment API and CRM Enhancer tool for automated data refresh.

FullEnrich recently launched native HubSpot integration with built-in contact deduplication. Full API access is available on all plans with 60 requests per minute, allowing bulk enrichment of up to 100 contacts per call. FullEnrich integrates natively with Zapier, Make, n8n, and Clay for no-code workflows.

Verdict:

For native CRM simplicity: UpLead and Lead411 both offer one-click integrations without technical setup.

For API-first workflows: FullEnrich's full API access on all plans (including $29/month) enables custom pipelines.

For no-code automation: FullEnrich's integrations with Zapier, Make, n8n, and Clay eliminate manual uploads.

5. Compliance & Privacy Considerations

Data compliance affects legal risk, especially when prospecting in Europe or regulated industries.

UpLead states GDPR/CCPA compliance with Standard Contractual Clauses for EU transfers. DPA available on request. In 2024, UpLead was fined $34,400 for failing to register as a data broker—procedural issue, not a data leak. No breaches reported.

Lead411 indicates GDPR/CCPA compliance. DPA available on request. In April 2020, Lead411 suffered a breach exposing 1M+ B2B contact records. No breaches since 2020.

FullEnrich is GDPR and CCPA compliant and does not store contact information. The platform only selects providers that are CCPA and GDPR compliant and audits providers to ensure compliance. FullEnrich achieved SOC 2 Type II certification. No breach history.

Verdict:

For standard compliance: Both UpLead and Lead411 provide DPAs and state GDPR/CCPA compliance.

For maximum transparency: FullEnrich's multi-provider architecture with SOC 2 Type II certification delivers stronger auditability.

UpLead vs Lead411 vs FullEnrich: Which Solution Fits Your GTM?

Why Teams Are Switching to Waterfall Enrichment

Here's what no provider advertises: no vendor has a 100% enrichment rate. Even 95% accuracy means 5% bounces. More critically, these percentages only apply to contacts the database actually has—not the leads you never found.

The math gets worse internationally. U.S.-based vendors often see rates drop from 60-70% domestically to 20-40% in EMEA or APAC.

The single-source problem both platforms face: When UpLead or Lead411 doesn't have a contact, that credit is spent with zero return. You're gambling their specific database includes your prospect.

This is where waterfall enrichment changes the equation.

Instead of one database, waterfall enrichment queries 15+ premium vendors sequentially. If Apollo doesn't have the email, the system automatically tries ContactOut, then Datagma, then Lusha, then 12 more—automatically, in seconds.

What you get with FullEnrich:

✓ 15+ premium data sources in one subscription—Apollo, Clearbit, ContactOut, Datagma, Hunter, Lusha, and 9 more

✓ Credits only on success—no wasted credits on "not found" contacts

✓ 3-month credit rollover (12 months annual)—unused credits don't disappear

✓ Dynamic provider selection—optimizes for U.S., EMEA, APAC automatically

✓ Triple email verification—bounce rates drop to 1%

✓ Full API on all plans—including $29/month tier

✓ Unlimited users—no seat-based pricing

See the Difference Yourself

Single-source platforms work until you hit their coverage gaps. When 30-40% of your market exists only in databases you don't subscribe to, you're leaving pipeline on the table.

Waterfall enrichment queries all the databases simultaneously—without managing 15 subscriptions, credit systems, or integrations.

👉 Start using Full Enrich for Free with 50 credits No credit card required.

Frequently Asked Questions

UpLead vs Lead411: Which is better?

It depends on your needs. Lead411 offers better value for U.S.-focused teams at $75/month annually with Growth Intent signals. UpLead provides superior email verification with credit refunds on bounced emails, better for accuracy-focused campaigns. Neither excels internationally—both are single-source with stronger North American coverage.

How much does UpLead cost compared to Lead411?

UpLead starts at $99/month for 170 credits ($0.58 per contact), or $74/month annually. Lead411 starts at $75/month annually for 200 exports/month ($0.375 per contact). Lead411 provides better per-contact value at entry levels.

Does UpLead have Growth Intent signals like Lead411?

No, UpLead does not include intent data. Lead411 includes Growth Intent tracking (funding, hiring, job changes) at Basic tier. UpLead focuses exclusively on verified contact data.

Can you use UpLead and Lead411 together?

Yes, some teams use both—UpLead for verified emails, Lead411 for phone numbers and intent. However, managing two systems adds complexity. A waterfall enrichment platform like FullEnrich eliminates this by querying 15+ sources automatically, achieving 80%+ find rates at lower cost.

What is the best alternative to Lead411?

For cost-effectiveness: FullEnrich at $29/month (1,000 credits) vs Lead411's $75/month (200 exports annually). For intent data: ZoomInfo or Cognism at $15,000+/year. For API-first: FullEnrich includes full API on all plans vs Lead411's Enterprise-only API.

Does UpLead integrate with Salesforce?

Yes, UpLead offers native one-click Salesforce integration. Professional tier supports bi-directional sync. Also integrates with HubSpot, Zoho, Pipedrive, Dynamics 365, and 1,500+ apps via Zapier.

Which platform has better data accuracy?

For email accuracy: UpLead's real-time verification and credit-back guarantee. For phone accuracy: Lead411's triple verification and strong direct dial database in North America. For international accuracy: Both decline significantly outside U.S.—waterfall enrichment delivers higher quality by cross-referencing 15+ sources.