B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
37%
37% -- customer retention rate increase for referred customers (2025)
Referred customers have a 37% higher retention rate than non-referred customers.
- Original research/study methodology not cited in blog post
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
37%
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
s9-consulting.com
Primary
Tier C
https://www.s9-consulting.com/post/sales-funnel-mapping ↗
Source Article
Sales Funnel Mapping: 7-Step Guide
A Practical Guide to Sales Funnel Mapping
Updated: May 13
What Is Sales Funnel Mapping (And Why Your Business Needs It)
Sales funnel mapping is the process of visually charting every step a potential customer takes — from first hearing about your business to making a purchase (and beyond).
Think of …
Original Research
s9-consulting.com
· Original study ↗
Methodology
Cited claim in consulting blog; original research not identified
Methodology documented
Segmentation
Industrymarketing
RoleAll marketers
Channelmulti-channel
Cite this stat
Plain Text
referred customers: 37% customer retention rate increase. Source: s9-consulting.com (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/referred-customer-retention-rate-increase
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<blockquote cite="https://lighthousedata.io/data/referred-customer-retention-rate-increase" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>37%</strong> -- customer retention rate increase for referred customers<br><small>Source: s9-consulting.com (2025) · <a href="https://lighthousedata.io/data/referred-customer-retention-rate-increase" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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