The best API for company research in 2026: what an independent benchmark found

Company research APIs serve three distinct needs: discovering companies that meet complex criteria, looking up facts about known companies, and enriching existing company lists, with database providers and live web research APIs suited to different tasks. Databases such as People Data Labs, Crunchbase, Apollo, Coresignal, Diffbot, and ZoomInfo provide fast, structured, domain- or name-keyed records but may lack fresh or unusual information, while web research services including Parallel, Exa, Linkup, Tavily, Firecrawl, and Brave use repeated live searches and page retrieval to investigate current, multi-constraint questions at greater time and cost. Openbenchmarks’ August 2026 multi-turn company search evaluation found Parallel Search basic led search-only company discovery with a 46.5 F1 score and 88.7% precision, whereas Exa deep led when agents could fetch pages, scoring 48.2 F1, and Exa also led a separate company-news factual lookup benchmark at 99.2% accuracy. Results indicated that recall remains limited across providers, with the strongest configuration recovering roughly one-third of valid companies on average, underscoring the need for verification. The recommended approach is to use research APIs for discovery, recent news, and facts beyond fixed schemas, database APIs for inexpensive stable firmographic enrichment, and often both in production workflows, while testing tools against an organization’s own questions, cost, latency, and accuracy requirements.

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