Skip to main content

Best data enrichment tools (2026): what we use, and the alternatives

Data enrichment adds missing information to a lead or account record: work email, phone, title, company size, tech stack, and more. No single provider has the best data for every market, so the strongest setups run several providers in a waterfall and verify every email before it is used.

Below is the enrichment stack OneGTM runs for clients today, followed by the other tools worth knowing, with what each costs. We use the first group in production and have no reseller deals with anyone on this page.

By Garrett Wolfe, founder of OneGTM (Clay Artisan Solutions Partner) and former GTM engineer at Unify. Updated .

Key takeaways

  • Use a waterfall. Querying several providers in sequence finds far more emails than any single database.
  • Our default stack is Deepline or Clay to orchestrate, with LeadMagic, QuickEnrich, and BlitzAPI among the providers underneath.
  • All-in-one databases like Apollo, ZoomInfo, and Cognism are simpler to buy but give you one provider's coverage.
  • Verify every address before sending. A found email is not a confirmed one, and bounces hurt your domain.

The enrichment stack OneGTM uses

These are the tools we run in client builds. Deepline or Clay sit on top and route each lookup across providers, and the providers below them fill in emails, phones, and company data.

Deepline

OneGTM uses this

One API, plus Claude Code skills, that routes enrichment across many data providers with waterfall fallbacks, scheduled jobs, and CRM sync. It is what we use for code-first builds.

Best for: GTM engineers building enrichment in code or with AI agents

Pricing: Pay as you go at $0.10 per credit with no platform fee, or Growth at $395/month plus usage (includes $200 of usage). Bring your own provider keys.

Clay

OneGTM uses this

Spreadsheet-style workflow tool that chains 150+ data providers, AI research agents (Claygent), and CRM sync in one table. OneGTM is a Clay Artisan Solutions Partner.

Best for: Teams that want visual, no-code enrichment workflows

Pricing: Free plan; Launch $167/month and Growth $446/month, about 10% less billed annually.

LeadMagic

OneGTM uses this

Email finder, email validation, mobile finder, and company data through an API and web app. Failed lookups do not use credits.

Best for: High-volume email and mobile lookups inside Clay or code

Pricing: Essential $99/month for 5,000 credits; Growth $249/month; higher tiers to $849/month.

QuickEnrich

OneGTM uses this

Real-time email and phone finder that verifies results, including catch-all addresses, with a web app and API.

Best for: Budget-friendly email and phone finding

Pricing: Starter $29/month for 6,000 credits; Growth $99/month; GTM Unlimited $399/month. 300 free lookups a month for new users.

BlitzAPI

OneGTM uses this

Flat-rate API for people and company search, enrichment, verified work emails, and US phone numbers. Their own claim is 550M+ profiles and 65M+ companies.

Best for: Builders who want predictable cost at high volume

Pricing: Core $399/month; Plus $499/month adds verified work email; Full $599/month adds US phones. 1,000 free credits.

Other data enrichment tools worth knowing

These are solid options depending on your market, budget, and how much you want to build. Waterfall tools come first, then single databases, then developer data APIs.

FullEnrich

Waterfall enrichment across 25+ sources for work emails and mobile numbers, charging only for verified results.

Best for: Teams that want a waterfall without building one

Pricing: Pro $55/month for 1,000 credits; 50 free credits.

BetterContact

Waterfall enrichment across 20+ providers with email and catch-all verification included.

Best for: Low-cost waterfall enrichment

Pricing: Starter $15/month (200 credits); Pro $49/month (1,000 credits); 50 free credits.

Findymail

Work email and phone finder with verification and a CRM enrichment service. Guarantees under 5% bounce or refunds credits.

Best for: Cold email teams focused on bounce rates

Pricing: Starter $99/month for 5,000 finder credits; 10 free credits.

Prospeo

B2B search and enrichment for verified emails and mobile numbers, with a Chrome extension and API. No credit is charged when no email is found.

Best for: Affordable email and mobile lookups

Pricing: Free plan with 100 credits a month; Starter $49/month; Growth $99/month.

Apollo.io

Contact and company database with sequencing, a dialer, and CRM sync. Apollo says it covers 240M+ contacts.

Best for: Small teams that want data and sending in one tool

Pricing: Free plan; paid plans from $49/user/month billed annually.

ZoomInfo

Enterprise contact and company database with intent data, website visitor tracking, and the Copilot AI assistant.

Best for: Enterprise sales and marketing teams

Pricing: Not published; sold by quote.

Cognism

B2B contact data known for phone-verified mobile numbers and GDPR-focused European coverage.

Best for: Teams selling into Europe who cold call

Pricing: Not published; sold by quote.

Lusha

Email and phone finder with a Chrome extension, API, and MCP server on one credit balance.

Best for: Individual reps and small teams

Pricing: Free plan with 40 credits a month; Starter $49.90/month.

Wiza

Pulls verified emails and phones for LinkedIn and Sales Navigator prospects.

Best for: Teams that build lists in Sales Navigator

Pricing: From $49/month per user; 20 free emails.

People Data Labs

Developer API and bulk data feeds for person, company, and job posting data, delivered by API or into your warehouse.

Best for: Product and data teams building on raw B2B data

Pricing: Free tier up to 100 records a month; Pro from $98/month.

Crustdata

Real-time people and company search, enrichment, and signals through an API and MCP server.

Best for: Developers who need fresh company and people signals

Pricing: Not published; free sandbox API key.

HubSpot data enrichment

HubSpot's built-in enrichment, formerly Breeze Intelligence and before that Clearbit, which fills contact and company fields inside HubSpot.

Best for: HubSpot-only teams

Pricing: Included with paid HubSpot plans.

Prices are from each vendor's site as of October 2026 and change often, so check before you buy. This is an opinionated list, not a paid ranking.

Data enrichment tools compared

ToolBest forStarting price
Deepline (OneGTM uses)GTM engineers building enrichment in code or with AI agentsPay as you go at $0.10 per credit with no platform fee, or Growth at $395/month plus usage (includes $200 of usage)
Clay (OneGTM uses)Teams that want visual, no-code enrichment workflowsFree plan; Launch $167/month
LeadMagic (OneGTM uses)High-volume email and mobile lookups inside Clay or codeEssential $99/month for 5,000 credits
QuickEnrich (OneGTM uses)Budget-friendly email and phone findingStarter $29/month for 6,000 credits
BlitzAPI (OneGTM uses)Builders who want predictable cost at high volumeCore $399/month
FullEnrichTeams that want a waterfall without building onePro $55/month for 1,000 credits
BetterContactLow-cost waterfall enrichmentStarter $15/month (200 credits)
FindymailCold email teams focused on bounce ratesStarter $99/month for 5,000 finder credits
ProspeoAffordable email and mobile lookupsFree plan with 100 credits a month
Apollo.ioSmall teams that want data and sending in one toolFree plan
ZoomInfoEnterprise sales and marketing teamsNot published
CognismTeams selling into Europe who cold callNot published
LushaIndividual reps and small teamsFree plan with 40 credits a month
WizaTeams that build lists in Sales NavigatorFrom $49/month per user
People Data LabsProduct and data teams building on raw B2B dataFree tier up to 100 records a month
CrustdataDevelopers who need fresh company and people signalsNot published
HubSpot data enrichmentHubSpot-only teamsIncluded with paid HubSpot plans

Starting prices as published by each vendor in October 2026.

How to choose a data enrichment tool

  • Coverage in your market. Test 100 of your own target contacts in two or three tools before you commit. Coverage varies a lot by region, seniority, and industry.
  • One provider or a waterfall. Single databases are simpler. Waterfalls find more emails because each provider fills gaps the others miss. What is waterfall enrichment?
  • Verification built in. Make sure results are verified, and decide how to handle catch-all addresses.
  • How it fits your stack. No-code teams do well with Clay. Teams with a technical owner save money with an API like Deepline called from code.
  • Pricing model. Per credit, per seat, or flat rate. Flat-rate APIs win at high volume; credits win when volume is uneven.

How OneGTM runs enrichment for clients

A typical build pulls accounts from several sources, dedupes them against the CRM, and then enriches contacts through a waterfall: the cheapest reliable provider first, then others only when the first misses. Every email is verified before it reaches a sequencer, and results sync back to the CRM.

We build this in Clay when the client's team wants to see and edit the workflow, and in code with Claude Code and Deepline when cost at volume matters more. If you want this built and run for you, see our Clay agency work.

When it makes sense to get help with enrichment

Signing up for an enrichment tool takes five minutes. Getting good data out of it takes longer. Most teams we talk to have a tool already and are still dealing with low match rates, credits that run out mid-month, bounces from unverified emails, or a Clay table only one person understands.

The hard part is the system around the tool: which providers to run in what order for your market, how to verify and dedupe, and how results land in the CRM without overwriting good data. That is the part OneGTM builds and runs.

  • Your match rate on target contacts is below 60 percent.
  • Credits or provider bills are growing faster than pipeline.
  • Bounce rates on cold email are creeping above 2 percent.
  • Nobody on the team owns the enrichment workflow day to day.

Book an enrichment review

Data enrichment tools FAQ

What is the best data enrichment tool?
There is no single best tool, because coverage depends on your market. For most B2B teams the best results come from a waterfall that runs several providers in sequence, orchestrated by Clay or a data API like Deepline. If you want one simple database, Apollo is the common starting point for small teams and ZoomInfo or Cognism for larger ones.
What is data enrichment?
Data enrichment is adding missing information to a lead or account record, such as a work email, phone number, job title, company size, industry, or tech stack, by looking it up in one or more data providers.
What is waterfall enrichment?
Waterfall enrichment queries several data providers one after another until one returns a result, so you get higher coverage and only pay the extra providers when the first one misses. Clay, Deepline, FullEnrich, and BetterContact all work this way.
What does OneGTM use for data enrichment?
OneGTM builds enrichment with Deepline or Clay as the orchestration layer and providers such as LeadMagic, QuickEnrich, and BlitzAPI underneath, plus email verification before anything is sent. The exact mix depends on the client's market and budget.
How much do data enrichment tools cost?
Self-serve tools start around $15 to $100 a month for a few thousand credits, flat-rate APIs run about $400 to $600 a month, and enterprise databases like ZoomInfo and Cognism are sold by quote. Prices on this page come from each vendor's site as of October 2026.
Do I still need to verify emails after enrichment?
Yes. A found email is a best match, not a confirmed mailbox. Verify every address before sending, treat invalid results as dead, and handle catch-all addresses carefully to keep bounce rates low.
Should I hire an agency to set up data enrichment?
If you have someone technical who can own it, you can build a good waterfall yourself with Clay or an API. Teams usually bring in help when match rates are low, costs are climbing, or no one has time to maintain the workflow. OneGTM builds and runs enrichment inside your own accounts, so you keep everything if you take it in house later.

Want an enrichment waterfall built for your market?

Related

Get an enrichment stack review

Tell us what you're building. We reply the same day.

Transmission

Takes about 20 seconds. You pick a time on the next screen, and the call is with Garrett directly. See our privacy policy.

Systems we've built for

Rather do it the old way? team@getaob.com LinkedIn