Clearbit

Clearbit is a B2B data enrichment platform that was acquired by HubSpot in 2023. It provides real-time company and contact data enrichment, website visitor identification, and buying intent signals for go-to-market teams.

The platform's core product, Reveal, identifies anonymous website visitors by matching IP addresses to company data. This tells marketing teams which companies are browsing their site, what pages they're viewing, and how often they return. While it identifies companies rather than individuals, this data is valuable for account-based marketing strategies and sales prioritization.

Clearbit's enrichment APIs are popular with developers and GTM engineers who need to build custom data workflows. The API returns detailed company and contact data in real-time — firmographics, technographics, employee count, funding history, and more. Many teams use Clearbit enrichment within Clay workflows or as a data source in their CRM.

Since the HubSpot acquisition, basic Clearbit features have been bundled into HubSpot's platform. HubSpot users get company enrichment and some visitor identification included with their subscription. For non-HubSpot users, standalone pricing requires contacting sales.

Clearbit is best suited for teams already using HubSpot or those building custom data workflows via API. For general-purpose B2B data enrichment, Clay offers more flexibility with 50+ data providers, and ZoomInfo provides broader coverage for enterprise needs.