Foundation is a buyer experience platform for homebuilders - often described as 'Shopify for Homebuilders.' It brings the shopping, purchasing, and owning of a newly built home online through white-labeled buyer apps, an operator control center, and warranty tooling, so builders can sell more homes more efficiently to happier customers. Founded in 2023 by former Opendoor operators, it went through Y Combinator's Summer 2023 batch.

Luke Groesbeck is the co-founder and CEO of Foundation, the buyer experience platform that drags homebuilding - one of the last big offline industries - online. After two decades building and scaling Silicon Valley startups including the now-public Opendoor and Eventbrite, he teamed up with two Opendoor colleagues to build what they call 'Shopify for homebuilders': white-labeled apps that carry a buyer from first tour through closing and into the warranty years. Backed by Y Combinator's Summer 2023 batch, Foundation grew 5x in 2025 and now powers the homeowner apps of more than 40% of the top-200 U.S. builders.