B2B Data Enrichment Tools & Resources
What B2B data enrichment is, how a waterfall finds the email, what a record costs and which tools to shortlist.
24 pages, grouped below by the job they do. Every provider count on them is 25+, and every match rate carries the 500-lead benchmark it was measured on.
All resources
Marcus ValeVP of Sales · 
Omni- Attempt 01Work emailNo deliverable email
- Attempt 02Work emailNo deliverable email
- Attempt 03Work emailNo deliverable email
- Attempt 04Work emailVerified
Start with these four pages, in this order.
What enrichment is, how a waterfall works, what a record costs and who sells it. After these four, the rest of the index makes sense.
- Definition
What Is Data Enrichment?
What enrichment adds to a contact record, and what a sales team does with it.Read - Definition
What Is Waterfall Enrichment?
Why asking providers one after another finds more emails for less money.Read - Explainer
How Much Does Data Enrichment Cost?
Pricing models compared: per-record, subscription, and credit-based approaches.Read - Guide
Best Data Enrichment Tools in 2026
11 platforms compared on architecture, coverage, and published pricing.Read
Every page we have on enrichment.
24 entries across 5 groups. Each row says what kind of page it is and what is on it before you spend a click.
Getting started
The basics, in four short pages.
4 entries- DefinitionWhat Is Data Enrichment?What enrichment adds to a contact record, and what a sales team does with it.
- DefinitionWhat Is Waterfall Enrichment?Why asking providers one after another finds more emails for less money.
- ExplainerHow Much Does Data Enrichment Cost?Pricing models compared: per-record, subscription, and credit-based approaches.
- ExplainerData Enrichment vs Data CleansingWhen to add data and when to fix what you have. Most teams need both.
How-to guides
Long reads on setting up and running a waterfall.
5 entries- GuideB2B Data Enrichment: Complete GuideHow to roll enrichment out across your sales and marketing tools, step by step.
- GuideWaterfall Enrichment vs Single SourceMany providers against one, compared with data.
- GuideWaterfall Enrichment Sales PlaybookHow sales teams use waterfall enrichment to build verified prospect lists faster.
- GuideHow to Set Up Waterfall EnrichmentSetting up the API, the provider order and the CRM connection.
- GuideBest Data Enrichment Tools in 202611 platforms compared on architecture, coverage, and published pricing.
Tools & comparisons
Our product pages, and the vendors buyers compare us with.
6 entries- GuideBest Waterfall Enrichment Tools 2026Waterfall platforms ranked, with prices and features.
- Guide15 Best B2B Data Enrichment Providers15 providers with their match rates, prices and coverage.
- ProductWaterfall Enrichment ProductHow the Cleanlist AI waterfall works: 25+ providers behind one API.
- ProductData Enrichment ProductEnrich contacts and companies with verified data from a 25+ provider waterfall.
- ComparisonCompare Cleanlist AI vs CompetitorsFeature-by-feature comparisons against the platforms teams shortlist against us.
- ComparisonAlternative SolutionsAlternatives to the big enrichment vendors.
Data enrichment companies
Roundups of the vendors, with their published prices.
4 entries- GuideData Enrichment Companies Compared15 enrichment companies ranked, with prices and what each one does.
- GuideBest B2B Data Enrichment Tools 2026The main B2B enrichment tools, side by side.
- GuideData Quality Tools GuideTools that clean and verify B2B data and keep it current.
- GuideB2B Data Providers Overview12 B2B data providers ranked on accuracy, coverage and price.
Key concepts
Short glossary definitions.
5 entries- DefinitionWaterfall EnrichmentWhat it is, and why several providers find more than one.
- DefinitionData EnrichmentThe definition, and the kinds of enrichment.
- DefinitionContact EnrichmentAdding job titles, phone numbers and LinkedIn profiles to contact records.
- DefinitionData AppendingFilling missing fields without overwriting existing data.
- DefinitionLead EnrichmentAutomatically enriching leads as they enter your funnel.
How Cleanlist AI runs a lookup. One charge, however many providers it takes.
Cleanlist AI does the work indexed above in one pass. Each lookup tries 25+ providers in cost order and stops at the first deliverable result.
- 25+data providers behind a single lookup
- 98%verified work email on a 500-lead benchmark
- 1 creditfor that email, however many providers it took
- 0credits to search, and nothing at all for a miss
- Attempts 01 to 03, no deliverable email
- 0 credits
- Attempt 04, verified work email
- 1 credit
- Providers on the ladder
- 25+
Only a deliverable result (verified or likely valid) is billed. A lookup that finds nothing costs nothing.
Common questions
What is data enrichment?
Data enrichment adds information from outside sources to the records you already have. For a B2B team that usually means verified emails, phone numbers, job titles and company firmographics (industry, headcount, location) on your contact and account records.
How does waterfall enrichment work?
Waterfall enrichment asks data providers for each record one after another. If the first provider has no result, or only a low-confidence one, the lookup moves to the next provider. Match rates go up because no single provider covers everyone.
How much does data enrichment cost?
Cleanlist AI prices per seat, and every seat adds its credits to one shared balance. Every new workspace starts with 14 days of Pro, free (250 credits, 3 seats, agents, Sequences and Clu in Slack). After that the Free plan is $0 for 50 credits a month, and paid plans start at $49 per seat a month. A lookup that finds nothing costs nothing.
What's the difference between data enrichment and data cleansing?
Data enrichment adds new information to a record, such as a phone number on a contact. Data cleansing fixes or removes what is wrong, such as a misspelled company name or an invalid email. Most CRMs need both.
What are the best B2B data enrichment tools?
The best B2B data enrichment tools in 2026 include Cleanlist AI (waterfall enrichment with 25+ providers), Apollo (sales engagement + enrichment), ZoomInfo (enterprise data platform), Clearbit/Breeze Intelligence (HubSpot-native enrichment), and Cognism (European data strength). The right one depends on your stack, your budget and the coverage you need. Cleanlist AI paid plans start at $49 per seat a month.
Which data enrichment companies are most reliable?
Reliable enrichment companies keep their data current and verify it. Cleanlist AI runs each lookup across 25+ providers in sequence and verifies the email before it bills. ZoomInfo and Cognism keep large proprietary databases. Apollo combines its own data with community-contributed records. Reliability varies by data type and region, so test a few providers on your own data.
Run one list through it.
14 days of Pro, free: 250 credits, 3 seats, agents, Sequences and Clu in Slack. Upload a list and see how many rows come back verified.
Every Pro feature is on. The Free plan stays at 50 credits a month.