Best B2B Data Providers in 2026

The data sources we actually run for clients — and the ones we don't. Every pick carries an Enjyn Score and an honest note on where it breaks. No anonymous curation, no pay-to-rank.

5 tools

Data enrichment & lookalikes

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Apollo
ApolloOperated

All-in-one B2B database, sequencer and dialer

★4.7
9,660 reviews
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Clay
ClayOperated

Programmatic data enrichment and prospecting workflows

★4.7
221 reviews
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Ocean.io
Ocean.ioOperated

Lookalike company sourcing and firmographic data

★3.1
12 reviews

Email finders

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Prospeo
ProspeoOperated

Email finder and verification with pattern matching

★4.6
186 reviews

Enterprise databases

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ZoomInfo
ZoomInfoTested

Enterprise B2B data and go-to-market platform

★4.5
9,099 reviews

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