B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
44%
44% -- consumer favorability uplift for local Chamber of Commerce member businesses (2026)
Consumers are 44% more likely to think favorably of businesses if they know they are members of their local Chamber of Commerce.
Attribution:
View source
Lighthouse Research Team
Last verified:
·
How we verify data →
Source verified
Evidence graded
Value
44%
Unit
Percentage
Data Vintage
2026
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
75
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
The Shapiro Group, Inc. and Market Street Services
Primary
Tier B
https://www.amherstvachamber.com/why-join/ ↗
Source Article
Why Join?
Original Research
The Shapiro Group, Inc. and Market Street Services
· Original study ↗
Methodology
Study by The Shapiro Group, Inc. and Market Street Services; cited by Amherst County Chamber of Commerce
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
local Chamber of Commerce member businesses: 44% consumer favorability uplift. Source: The Shapiro Group, Inc. and Market Street Services (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/chamber-membership-favorability-44pct
HTML Embed
<blockquote cite="https://lighthousedata.io/data/chamber-membership-favorability-44pct" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>44%</strong> -- consumer favorability uplift for local Chamber of Commerce member businesses<br><small>Source: The Shapiro Group, Inc. and Market Street Services (2026) · <a href="https://lighthousedata.io/data/chamber-membership-favorability-44pct" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
Share
Use this data in your work
Copy the citation, embed the widget, or explore thousands more verified marketing statistics -- all free.