B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
2.1%
2.1% -- contact data decay rate for B2B contact database accuracy (2026)
HubSpot's database decay model estimates that contact accuracy degrades by approximately 2.1% per month.
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
2.1%
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
60
Independence
30
Methodology
45
Freshness
95
Source
HubSpot
Primary
Tier B
https://www.hubspot.com/database-decay ↗
Source Article
How to Chain 3+ Enrichment Vendors With a Waterfall (2026)
Disclosure: This article is published by Datamagnet. Vendor claims are self-reported unless otherwise noted.
How to Build Waterfall Enrichment: A 2026 Step-by-Step Guide
In 2026, Clay's own benchmark of a multi-vendor fallback chain found contact coverage jump from roughly 30% with a single enrichme…
Original Research
HubSpot
· Original study ↗
Methodology
HubSpot database decay model (MarketingSherpa methodology)
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
B2B contact database accuracy: 2.1% contact data decay rate. Source: HubSpot (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/hubspot-contact-decay-2-1-monthly
HTML Embed
<blockquote cite="https://lighthousedata.io/data/hubspot-contact-decay-2-1-monthly" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>2.1%</strong> -- contact data decay rate for B2B contact database accuracy<br><small>Source: HubSpot (2026) · <a href="https://lighthousedata.io/data/hubspot-contact-decay-2-1-monthly" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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