EliseAI raises $350M at $4B for AI agents in housing and healthcare operations

The round was entirely primary capital, according to CEO Minna Song. Ontario Teachers' Pension Plan joined as a new investor, and Sapphire Ventures and Navitas Capital returned. It is the fourth time since 2023 that a16z and Bessemer have backed the company. The money will fund hiring in engineering, deployment and sales, plus a second engineering hub in San Francisco. Reports in August had pointed to $300M at $3.7B, so the final terms came in higher. The price has moved fast. EliseAI became a unicorn with a $75M Series D in August 2024, then raised $250M at $2.2B about 13 months ago. Its software now runs on roughly one in six U.S. apartments. Tech Funding News put the valuation at no more than about 20 times ARR. That is a ceiling, since the revenue figure dates from June. For founders, the useful signal is how the company grew. It started with leasing conversations, then added maintenance, renewals and billing, and then moved into healthcare front-desk work. Each step reused the same integrations and customer trust. Investors are paying for depth inside an operator's daily workflow, not for a thin model wrapper.