Which AI startups actually land enterprise contracts? — Brian Lewis, Millennium
Aug 29, 2026 · 18:45
Brian Lewis of Millennium, a hedge fund, explains why only ~5% of AI vendor demo calls end in signed contracts: on the buying side, 10-15 startups per pain point become two or three demos, zero or one pilot, and one contract per four pilots. He catalogs failures—a vendor asking customers to self-report gateway telemetry so it could charge margin on traffic it never carried, a 'zero retention' vendor revealing data it shouldn't have, betas engineered around permissive retention, and a core API down for hours on a trading day. His larger claim: 60% of becoming AI-native is unsexy work—entitlements, integration, change management—and agents inherit whatever foundations you have, so fix the boring 60% first. He advises startups to treat Millennium-grade security and ops as the bar.
