Best B2B Data API Providers
Compare B2B data API providers. Select your technical requirements and find the API that fits your stack.
What features matter to you?
All providers (select features to rank)
Abstract API
Suite of simple APIs for common data tasks including company enrichment, email verification, and geolocation.
BoldData
Global B2B data API with 400M+ company records. RESTful endpoints for search, enrichment, and bulk operations with pay-per-call pricing.
Clearbit (Breeze)
Now part of HubSpot (Breeze Intelligence). Real-time enrichment API popular with SaaS companies for lead scoring.
Crunchbase
Company data API focused on startups, funding rounds, investors, and technology company insights.
Diffbot
AI-powered web data extraction and knowledge graph API with structured company and people data.
FullContact
Identity resolution and enrichment API that unifies customer data across channels and devices.
People Data Labs
Developer-first B2B data API with large person and company datasets. Popular for enrichment and identity resolution.
ZoomInfo
Enterprise B2B intelligence API with comprehensive contact and company data, focused on North American market.
Full Comparison
| Feature | BoldData | ZoomInfo | Clearbit (Breeze) | People Data Labs | FullContact | Diffbot | Crunchbase | Abstract API |
|---|---|---|---|---|---|---|---|---|
| Companies | 400M+ | 100M+ | 44M+ | 30M+ | — | — | 50M+ | — |
| Countries | 190+ | — | — | — | — | — | — | — |
| Starting price | Free trial | $15K/yr | Contact sales | $0 (free tier) | Free tier | $299/mo | $29/mo | Free tier |
| Founded | 2008 | 2000 | 2014 | 2015 | 2010 | 2008 | 2007 | 2020 |
| Contacts | — | 260M+ | — | — | — | — | — | — |
| Enrichment attrs | — | — | 100+ | — | — | — | — | — |
| Person records | — | — | — | 1.5B+ | — | — | — | — |
| Identity records | — | — | — | — | 3B+ | — | — | — |
| Entities | — | — | — | — | — | 10B+ | — | — |
| Best for | Company search API, Data enrichment, KYB verification | Enterprise sales, Contact discovery, Intent data | Lead scoring, Form enrichment, SaaS companies | Developer teams, Person enrichment, Bulk processing | Identity resolution, Customer unification | Web data extraction, Knowledge graphs | Startup research, Investor intelligence | Simple lookups, Small projects, Prototyping |
| Pricing | Pay-per-call from $0.10. Free trial with 1,000 calls. | Annual contracts from $15K/yr. | Part of HubSpot. Pricing restructuring. | Pay-per-record from $0.01. Free tier. | Free tier (100/mo). Paid from $99/mo. | From $299/mo. Enterprise custom. | Free tier. Pro from $29/mo. | Free tier. Paid from $12/mo. |
| Data sources | Official registries, Financial filings, Trade registers, Web data | Web scraping, Community-contributed, Partnerships | Web scraping, Public data, ML models | Web scraping, Public records, Social profiles | Public data, Partnerships, Social data | AI web crawling, Structured web data | Community-contributed, Web scraping, SEC filings | Web scraping, Public data |
| Global coverage | ✓ | ~ | ~ | ✓ | ~ | ✓ | ~ | ~ |
| RESTful API | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Real-time enrichment | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ~ | ✓ |
| Company search/lookup | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ~ |
| Bulk enrichment | ✓ | ✓ | ✓ | ✓ | ✓ | ~ | ~ | ~ |
| Pay-per-call pricing | ✓ | ✗ | ✗ | ✓ | ✓ | ✗ | ✗ | ✓ |
| No annual contract | ✓ | ✗ | ✗ | ✓ | ✓ | ✗ | ✗ | ✓ |
| GDPR compliant | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Financial data | ✓ | ✓ | ~ | ~ | ✗ | ~ | ~ | ✗ |
| Firmographic data | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ~ |
| Technographic data | ✗ | ✓ | ✓ | ✗ | ✗ | ✓ | ✗ | ✗ |
| Webhooks / streaming | ✓ | ✓ | ✓ | ✗ | ✓ | ~ | ✗ | ✗ |
Ready to get started with BoldData?
Access 400M+ company records across 190+ countries. No annual contract required.