B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
34%
34% -- first year turnover rate for SDRs (sales development representatives) (2025)
34% of SDRs leave their position in less than a year.
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
34%
Unit
Percentage
Data Vintage
2025
Entity
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
50
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
myearlybird.ai
Primary
Tier C
https://myearlybird.ai/blog-posts/what-is-a-sales-development-representative ↗
Source Article
What Is a Sales Development Representative and Why Your Agency Needs One
← Back To Blog
What Is a Sales Development Representative and Why Your Agency Needs One
Forget all the corporate buzzwords for a moment. A Sales Development Representative (SDR) is the person on a sales team with one critical job: generating qualified opportunities. They're the opportunity scouts, t…
Original Research
myearlybird.ai
· Original study ↗
Methodology
Attrition benchmark for the SDR profession cited by vendor blog; original study linked but not named in text. No explicit date given; vintage set to publication year.
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
SDRs (sales development representatives): 34% first year turnover rate. Source: myearlybird.ai (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/sdr-first-year-turnover-rate
HTML Embed
<blockquote cite="https://lighthousedata.io/data/sdr-first-year-turnover-rate" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>34%</strong> -- first year turnover rate for SDRs (sales development representatives)<br><small>Source: myearlybird.ai (2025) · <a href="https://lighthousedata.io/data/sdr-first-year-turnover-rate" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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