Reviews · Independent · Updated June 2026
B2B data provider reviews
We review the major B2B contact-data providers on one transparent rubric (data accuracy, coverage, ease of use, pricing transparency and compliance), with every score anchored to cited evidence. We sell none of the tools we rank. See how we test →
- 8.1 /10Read review →
Cognism
GDPR-first sales intelligence with phone-verified mobile numbers, strongest across the UK & EMEA.
- 7.5 /10Read review →
UpLead
Self-serve US contact data with a 95% accuracy guarantee and real-time email verification.
- 7.4 /10Read review →
Apollo
All-in-one prospecting (database, sequencer and dialer) at a fraction of the enterprise price, strongest in the US.
- 7.4 /10Read review →
Clay
Programmable data enrichment that runs "waterfall" lookups across 150+ providers; powerful, if you'll learn it.
- 7.4 /10Read review →
Bombora
The intent-data standard, a consent-based co-op that flags which companies are in-market for your category.
- 7.3 /10Read review →
Dealfront
European website-visitor ID and B2B sales intelligence: Leadfeeder + Echobot, GDPR-native, with a free tier.
- 7.3 /10Read review →
Lusha
Self-serve B2B contact data with a one-click Chrome extension and transparent, published pricing.
- 7.3 /10Read review →
ZoomInfo
The deepest US B2B database, with intent, visitor-ID and enrichment in one platform, at an enterprise price.
- 7.2 /10Read review →
Lead411
US contact data plus Bombora-powered intent, with transparent, value-priced plans.
- 7.0 /10Read review →
Kaspr
LinkedIn prospecting with one-click mobile and email reveals, strongest across Europe, backed by Cognism.
- 6.8 /10Read review →
RocketReach
Self-serve email and phone lookups across a large global database, with transparent lookup-based pricing.
- 6.4 /10Read review →
Lead Forensics
Reverse-IP website-visitor identification that shows which companies browse your site, at an enterprise price.
- 6.3 /10Read review →
Seamless.ai
Real-time AI contact search with huge US volume and a free tier, if you can live with variable accuracy.
Comparing two tools? See our head-to-head comparisons or the consolidated pricing table.