EliseAI, an AI company automating back-office work for landlords and health systems, raised $350 million at a $4 billion valuation in a funding round co-led by a16z and Bessemer Venture Partners, nearly doubling its valuation from $2.2 billion 13 months earlier. CEO Minna Song attributed the growth to expanded product offerings and deeper market penetration in housing and healthcare. The funding will support product development and expand the company's engineering teams across North America, including a new San Francisco hub.