By Holly Allen, Founding AE and SDR coach at FullEnrich (58K LinkedIn followers, 14% connect rate)

What Is an SDR? (Sales Development Representative)

SDR stands for Sales Development Representative — a sales role focused on outbound prospecting, lead qualification, and booking meetings for Account Executives. SDRs don't close deals; they fill the top of the funnel by identifying and engaging potential customers through cold calls, emails, LinkedIn outreach, and multi-channel sequences.

An SDR typically handles 50–100 outreach activities per day and is measured on meetings booked, pipeline generated, and response rates — not revenue closed. It's the entry point into B2B sales and one of the fastest-growing roles in SaaS.

Note: SDR also stands for Special Drawing Rights (an IMF reserve asset). This article covers the sales role, not the financial instrument.

What Does an SDR Do?

The SDR role sits between marketing and sales. Their job is to take raw leads — from inbound forms, purchased lists, or their own prospecting — and turn them into qualified meetings. Here's the typical day:

• Prospect research: Identify target accounts that match the ICP, enrich contacts with verified emails and phone numbers
• Cold outreach: 40–80 calls and 30–50 emails per day via multi-channel sequences
• Lead qualification: Use frameworks like BANT, MEDDIC, or GPCTBA/C&I to qualify interest and fit
• Meeting booking: Schedule qualified meetings for Account Executives or Account Managers
• CRM hygiene: Log every touchpoint, update deal stages, and maintain pipeline accuracy

SDR vs BDR: What's the Difference?

The terms are often used interchangeably, but there's a distinction:

• SDR (Sales Development Representative): Typically works inbound leads — qualifying marketing-generated MQLs and booking meetings from form fills, content downloads, and demo requests.
• BDR (Business Development Representative): Typically works outbound — cold prospecting into target accounts, building pipeline from scratch with no prior engagement.

In practice, many companies use "SDR" for both. What matters is whether the role is inbound-first, outbound-first, or full-cycle. See the full breakdown: SDR vs BDR compared.

Key SDR Metrics

A Day in the Life of an SDR

8:00 AM — Review overnight responses, prioritize follow-ups.

8:30 AM — Power hour: 30–40 cold calls to verified mobiles. This is where connect rate matters — bad data means dialing into voicemail.

10:00 AM — Email and LinkedIn outreach. Personalize the first line based on the prospect's recent activity or company news.

11:30 AM — Prospect research block: build tomorrow's call list, enrich contacts, update CRM notes.

1:00 PM — Follow-up calls on warm leads and callbacks.

2:30 PM — Team sync: share what's working, review call recordings, swap objection handles.

3:30 PM — Second power hour: afternoon calls tend to have higher pickup rates.

4:30 PM — CRM cleanup, prep sequences for tomorrow, log final notes.

How Data Quality Makes or Breaks SDR Performance

The #1 bottleneck for SDRs isn't skill — it's data. If 40% of your list has wrong numbers or missing emails, 40% of your day is wasted. This is where waterfall enrichment changes the math: by querying 20+ data providers instead of one, you're calling verified mobiles and emailing verified addresses — lifting connect rates from 2% to 8–14%.

The best SDR teams don't just work harder. They start with better data.

SDR Salary & Compensation

SDR compensation in the US follows a base + variable structure. Here's what the market looks like in 2026:

Variable pay is typically tied to meetings booked or qualified opportunities created — not revenue closed. At well-funded SaaS companies in San Francisco or New York, total compensation can exceed $100K OTE in the first year. Remote-first companies often match on-site rates. The average SDR tenure is 14–18 months before promotion to AE.

Beyond base salary, most SDR roles include commission accelerators (bonus for exceeding quota), SPIFFs (spot bonuses for specific campaigns), and equity at early-stage startups.

SDR Tech Stack

The tools an SDR uses directly determine how efficient their prospecting is. A well-equipped SDR stack typically includes:

• CRM: Salesforce or HubSpot — the system of record for all prospect interactions, notes, and pipeline stages
• Sales Engagement Platform: Outreach.io or Salesloft — automates email sequences, call tasks, and LinkedIn steps in a single workflow
• Data Enrichment: FullEnrich — waterfall enrichment across 15+ providers to find verified emails and direct mobile numbers. This is where connect rate lives or dies.
• Prospecting / List Building: Apollo.io or ZoomInfo for initial lead lists; see the full B2B prospecting tool breakdown
• Calling: Aircall, Dialpad, or Orum (parallel dialer) — Orum is popular for SDRs targeting 100+ dials/day
• LinkedIn: LinkedIn Sales Navigator for account research and social outreach
• Recording / Coaching: Gong or Chorus for call recording, AI feedback, and onboarding ramp

Data quality is the multiplier across all of these tools. A parallel dialer hitting bad numbers is still wasted time. FullEnrich's waterfall enrichment approach — querying 15+ providers to find the best available mobile and email — directly lifts connect rates and email deliverability for the entire stack.

SDR Career Path

The SDR role is one of the most defined career on-ramps in B2B SaaS. Here's the typical progression:

1. SDR / BDR (0–18 months): Master outbound prospecting, objection handling, and pipeline generation. Hit quota consistently and document your results.
2. Senior SDR / SDR Team Lead (optional, 12–24 months): Some companies have a senior tier or team lead role where you mentor junior SDRs while still carrying a personal quota.
3. Account Executive (18–30 months in): The most common promotion path. AEs run the full sales cycle — discovery, demo, proposal, close. Your SDR track record is the primary qualification.
4. Senior AE / Enterprise AE: Larger deal sizes, longer cycles, more complex stakeholder management.
5. Sales Manager / Director of Sales: Some SDRs move into management rather than individual contributor AE roles — especially if they enjoyed the coaching and team-building aspects of the SDR Team Lead role.

The SDR-to-AE promotion timeline is typically 12–18 months at a company with clear promotion criteria. Companies that hire SDRs with explicit promotion paths have much lower attrition. When evaluating SDR roles, ask about the last 5 people promoted from SDR and what their ramp looked like. See also: SDR vs BDR to understand which starting role aligns with your target career path.

Related Resources

• SDR vs BDR — the full comparison
• B2B Prospecting Tools — the tools SDRs use to build lists and find contacts
• Cold Calling vs Warm Calling — strategies for both
• Trusted Prospecting — how waterfall enrichment improves SDR connect rates
• Email Finder — find verified emails and mobiles for your call list
• Email Enrichment — enrich your entire prospect list in one pass

Frequently Asked Questions

What does SDR stand for?

SDR stands for Sales Development Representative — a B2B sales role focused on outbound prospecting, lead qualification, and booking meetings for Account Executives. SDRs generate pipeline; they don't close deals. The role sits at the top of the sales funnel between marketing and closing sales.

What is the difference between SDR and BDR?

The terms are often used interchangeably. Technically, SDRs (Sales Development Representatives) typically work inbound leads — qualifying MQLs from marketing. BDRs (Business Development Representatives) typically work outbound — cold prospecting into target accounts. In practice, many companies use "SDR" for both functions. The full SDR vs BDR breakdown covers the differences in comp structure, KPIs, and career path.

How much do SDRs make?

US SDR compensation in 2026: $45K–$65K base salary plus $15K–$55K in variable, for total OTE of $60K–$120K depending on experience, company stage, and geography. Entry-level SDRs at well-funded SaaS companies in major markets typically earn $70K–$85K OTE. Senior SDRs or team leads can reach $100K–$120K OTE.

What tools do SDRs use?

The core SDR tech stack includes a CRM (Salesforce or HubSpot), a sales engagement platform (Outreach.io or Salesloft), a data enrichment tool (FullEnrich for waterfall email and mobile enrichment), a prospecting database (Apollo.io or ZoomInfo), a calling tool (Aircall, Dialpad, or Orum), and LinkedIn Sales Navigator for social outreach. Data quality — specifically verified mobiles and emails — is the highest-leverage investment in the stack.