B2B Data & Contact Enrichment — Full Rankings
| Rank | Company | AT500 Score | Monthly Change | Best For | |
|---|---|---|---|---|---|
| 1 |
Clay
clay.com
|
9.6
|
▲ +3 | GTM teams wanting a custom, builder-style enrichment workflow, Technical operators comfortable managing a multi-provider data waterfall | Profile → |
| 2 |
Apollo.io
apollo.io
|
9.4
|
▲ +2 | Startups and SMBs wanting an affordable, unified GTM platform, Sales teams wanting data, sequencing, and dialing in one tool | Profile → |
| 3 |
6sense
6sense.com
|
8.7
|
-- | Mid-market and enterprise B2B teams running account-based programs, Organizations wanting predictive, pre-engagement intent signals | Profile → |
| 4 |
ZoomInfo SalesOS
zoominfo.com
|
8.4
|
-- | Teams needing the deepest available B2B contact and intent data, Organizations wanting conversation intelligence unified with prospecting data | Profile → |
| 5 |
Amplemarket
amplemarket.com
|
8.1
|
▲ +2 | Mid-market B2B sales teams running serious multichannel outbound, Companies wanting to consolidate 3-4 point tools into one contract | Profile → |
| 6 |
Cognism
cognism.com
|
8
|
-- | Teams selling primarily into European markets, Phone-first outbound motions needing verified mobile numbers | Profile → |
| 7 |
Lusha
lusha.com
|
7.5
|
-- | SMB teams wanting quick, accessible contact data, Reps doing LinkedIn-based prospecting who need fast lookups | Profile → |