Build Raises $8.5M Seed for AI Infrastructure Workflow Platform

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Build, a company based in San Francisco, California, has raised $8.5 million (about €7.4 million) in a Seed round led by Index Ventures. The company announced the financing on June 30, 2026.

Build works across the United States and the United Kingdom on AI native software that automates the complex, manual work behind real estate and infrastructure projects. Its platform handles tasks such as sourcing sites, running technical due diligence, and assessing power availability.

The funding will help the company grow as demand rises for tools that speed up the early groundwork on large real estate and infrastructure developments.