Build

Build is an AI-native operating partner for the built world — the first agentic development firm combining autonomous AI agents with domain experts to accelerate commercial real estate from concept to completion. Its AI platform, Dougie, automates mission-critical CRE workflows including site selection, desktop due diligence, underwriting, investment committee memos, test fit analysis, market research, zoning analysis, environmental diligence, and ESG reporting. The world's largest institutional investors, developers, and operators trust Build to deliver fully vetted opportunities in days rather than weeks. Build serves clients across data centers, industrials, energy, power, office, telecommunications, mixed-use, hotels, and multifamily. Clients include Tishman Speyer and STACK Infrastructure. The company was co-founded by James Stirrat-Ellis (CEO, ex-Heatherwick Studio) and Ben McClusky (CTO, ex-Gorillas) and has offices in New York, San Francisco, and London. Build has partnered with Index Ventures.