What is B2B data enrichment?

Data enrichment fills in or updates missing fields (email, phone, job title, company size, technographics) on records you already hold, by matching them against a provider's database. Teams use it to clean CRM data and complete inbound leads before routing them to sales.

What's the best B2B data enrichment tool?

Clay, for match rate and flexibility: its waterfall chains 150+ sources, so it finds data no single provider holds. ZoomInfo and Apollo are simpler single-source options if you'd rather enrich straight from one database.

What's the difference between a data provider and an enrichment tool?

A data provider sells you contacts from its own database; an enrichment tool like Clay completes records you already have, often by routing each lookup across many providers' data and keeping the best match. Many teams pair the two.

What is B2B data enrichment?

Data enrichment fills in or updates missing fields (email, phone, job title, company size, technographics) on records you already hold, by matching them against a provider's database. Teams use it to clean CRM data and complete inbound leads before routing them to sales.

What's the best B2B data enrichment tool?

Clay, for match rate and flexibility: its waterfall chains 150+ sources, so it finds data no single provider holds. ZoomInfo and Apollo are simpler single-source options if you'd rather enrich straight from one database.

What's the difference between a data provider and an enrichment tool?

A data provider sells you contacts from its own database; an enrichment tool like Clay completes records you already have, often by routing each lookup across many providers' data and keeping the best match. Many teams pair the two.

Ranked · US · Updated June 2026

The best B2B data enrichment tools for US teams

In short

For US teams, Clay is the most powerful enrichment tool: its waterfall chains 150+ data sources, so match rates beat any single provider (independent tests cite 80–95% email finds). ZoomInfo and Apollo enrich from their own deep databases; RocketReach and Lusha cover bulk lookups and CRM top-ups. Here's how the five compare.

1

Clay

Programmable data enrichment that runs "waterfall" lookups across 150+ providers; powerful, if you'll learn it.

7.4 /10

Waterfall enrichment routes each lookup through 150+ sources, so match rates beat any single database (independent tests cite 80–95% email finds) and an AI research agent (Claygent) handles open-ended fields. The trade-off is a steep learning curve (reviewers report 4–6 weeks to fluency); it's best with a dedicated GTM/RevOps owner.
- Entry price from $2,004/yr
- Pricing Published
- Free plan Yes
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2

ZoomInfo

The deepest US B2B database, with intent, visitor-ID and enrichment in one platform, at an enterprise price.

7.3 /10

Enrichment on top of the deepest US database (500M+ profiles), with org charts, technographics and automated CRM updates. Single-source rather than waterfall, but the source is deep, at opaque five-figure pricing (Vendr median ~$33,500/yr).
- Entry price ~$14,995/yr
- Pricing Demo-gated
- Free plan No
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3

Apollo

All-in-one prospecting (database, sequencer and dialer) at a fraction of the enterprise price, strongest in the US.

7.4 /10

Built-in CRM enrichment inside an affordable all-in-one, with a genuinely usable free plan. Strong US value; accuracy outside the US is the recurring watch-out.
- Entry price from $588/yr
- Pricing Published
- Free plan Yes
Visit Apollo
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Read our Apollo review →
4

RocketReach

Self-serve email and phone lookups across a large global database, with transparent lookup-based pricing.

6.8 /10

Bulk lookups and an enrichment API over a large claimed database (700M+ professionals), with transparent self-serve pricing. Data accuracy on older records is the main complaint.
- Entry price from $399/yr
- Pricing Published
- Free plan Yes
Visit RocketReach
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5

Lusha

Self-serve B2B contact data with a one-click Chrome extension and transparent, published pricing.

7.3 /10

One-click CRM enrichment via its Chrome extension, with published pricing and a free plan: simple record top-ups rather than a full orchestration layer, ideal for smaller teams.
- Entry price from $449/yr
- Pricing Published
- Free plan Yes
Visit Lusha
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Read our Lusha review →

Every score comes from the same rubric, applied identically. See the consolidated pricing table for all providers side by side , or check whether buying B2B data is legal in the US .

Frequently asked questions

What is B2B data enrichment?: Data enrichment fills in or updates missing fields (email, phone, job title, company size, technographics) on records you already hold, by matching them against a provider's database. Teams use it to clean CRM data and complete inbound leads before routing them to sales.
What's the best B2B data enrichment tool?: Clay, for match rate and flexibility: its waterfall chains 150+ sources, so it finds data no single provider holds. ZoomInfo and Apollo are simpler single-source options if you'd rather enrich straight from one database.
What's the difference between a data provider and an enrichment tool?: A data provider sells you contacts from its own database; an enrichment tool like Clay completes records you already have, often by routing each lookup across many providers' data and keeping the best match. Many teams pair the two.