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Marketing data sources for SaaS and developer founders

Find public and first-party datasets for market research, content and demand discovery. Compare coverage, granularity, access requirements and limitations.

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Industry and establishment data APIPublic data

Census Economic Census API

Use the Economic Census for periodic industry structure and business-size analysis.

Coverage: Coverage depends on the source's documented geographic and time scope · Provider-described dataset or API records available at the indicated geography and time scope.

Establishment employment, payroll, revenue, industry and geography by releasePublic access is described, but any registration, account and downstream hosting costs should be checked.

Reviewed 2026-10-09Coverage and caveats →

Access and coverage notes were checked 2026-10-09 against provider pages. Features, terms, APIs and release schedules can change; follow the linked source documentation before relying on a workflow.