Free & Open Data

Free Public Datasets for Agencies

AgencyCluster publishes free, downloadable datasets to help agencies identify and research potential enterprise clients. Each dataset includes searchable tables, CSV downloads, and is updated regularly.

2026 Data

List of Fortune 500 Companies

Complete list of Fortune 500 companies ranked by revenue. Includes industry, headquarters, employees, website technology stacks, and marketing tools used by each company.

500 companiesTech stack dataMarketing stack data
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Fastest-Growing

Inc. 5000 List: Top 500 Fastest-Growing Companies

Top 500 companies from the Inc. 5000 fastest-growing private companies in America. Includes 3-year growth rate, industry, location, revenue range, and company details.

500 companiesGrowth ratesCEO & founding data
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Using This Data to Find Clients?

If you're prospecting enterprise companies from these datasets, consider listing your agency on AgencyCluster. We connect vetted agencies with Fortune 500 and high-growth companies looking for partners.

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