B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
70%
70% -- contact rate increase for sales agents (2026)
Sales agents can experience a 70% increase in contact rates by making at least six calls.
- requires making at least six calls ideally
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
70%
Unit
Percentage
Data Vintage
2026
Entity
Sample Size
100,000
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
Harvard Business Review
Primary
Tier B
https://agedleadstore.com/best-time-to-follow-up-with-your-leads/ ↗
Source Article
The Best Time to Follow Up with Your Leads
Original Research
Harvard Business Review
· Original study ↗
Methodology
Harvard Business Review survey of more than 100,000 call attempts over three years
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
sales agents: 70% contact rate increase. Source: Harvard Business Review (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/contact-rate-increase-six-calls
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<blockquote cite="https://lighthousedata.io/data/contact-rate-increase-six-calls" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>70%</strong> -- contact rate increase for sales agents<br><small>Source: Harvard Business Review (2026) · <a href="https://lighthousedata.io/data/contact-rate-increase-six-calls" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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