B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
6.4%
6.4% -- email reply rate for signal-based B2B outreach campaigns (2025)
Signal-based outreach achieved an email reply rate of 6.4% across 5 client campaigns in a 2025 controlled comparison.
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
6.4%
Unit
Percentage
Data Vintage
2025
Entity
Sample Size
5
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
75
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
Alchemail
Primary
Tier B
https://alchemail.io/blog/signal-based-outreach ↗
Source Article
Signal-Based Outreach: How to Use Intent Data in Cold Email and LinkedIn
Original Research
Alchemail
· Original study ↗
Methodology
Controlled comparison; static baseline was 2.8% (+129%)
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
signal-based B2B outreach campaigns: 6.4% email reply rate. Source: Alchemail (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/signal-email-reply-rate-2025
HTML Embed
<blockquote cite="https://lighthousedata.io/data/signal-email-reply-rate-2025" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>6.4%</strong> -- email reply rate for signal-based B2B outreach campaigns<br><small>Source: Alchemail (2025) · <a href="https://lighthousedata.io/data/signal-email-reply-rate-2025" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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