Minna Song and Tony Stoyanov started with a simple problem in 2017: apartment leasing agents spent their days answering the same questions, over and over. Their answer was an AI assistant that could do it for them. Seven years later, that assistant is now the default communications layer for one of the most concentrated customer bases in enterprise software. EliseAI powers conversations across more than 2.5 million apartment units, and its agents are used by 28 of the 30 largest U.S. property owners, including giants like Greystar and Equity Residential [Business Model Canvas Template, 2024] [Sapphire Ventures, ~2025]. The company says it has surpassed $100 million in Annual Recurring Revenue, a figure that likely supported its $2.2 billion valuation in its most recent fundraise [EliseAI Raises $250M Series E Blog, 2025] [Forbes Video, ~2026].
From Leasing Wedge to Platform
The initial product was a vertical wedge. EliseAI's AI leasing assistant integrated directly into property management systems like Yardi and RealPage, handling inbound inquiries via email, text, and webchat. The claim was a 70 percent reduction in response times and a 20 to 30 percent lift in tour-to-lease conversion [Business Model Canvas Template, 2024]. The expansion came by automating adjacent workflows: maintenance requests, renewals, billing, and resident communications. The company says its systems now handle 90 percent of renter communication automatically [Bloomberg Video, 2024-08-14]. A human-in-the-loop system, launched in 2021, guarantees a 100 percent response service-level agreement [Business Model Canvas Template, 2024].
The Healthcare Bet and the $250 Million War Chest
In 2023, the company launched HealthAI, a parallel vertical targeting patient scheduling and engagement for healthcare providers [Sapphire Ventures, ~2025]. The capital to fund this expansion arrived in a $250 million Series E round led by Sapphire Ventures, with participation from Andreessen Horowitz and Bessemer Venture Partners [Sapphire Ventures, ~2025].
| Metric | Value |
|---|---|
| 2019 Seed | 1.9 M USD |
| 2020 Series A | 6.5 M USD |
| 2022 Series B | 23.5 M USD |
| 2024 Series D | 75 M USD |
| 2025 Series E | 250 M USD |
| Investor | Notable For |
|---|---|
| Sapphire Ventures | Lead investor, Series E; growth-stage specialist [Sapphire Ventures, ~2025] |
| Andreessen Horowitz (a16z) | Participated in Series E; marquee Silicon Valley fund |
| Bessemer Venture Partners | Participated in Series E; established enterprise software investor |
| Avalon Ventures | Led the $1.9 million seed round in 2019 [Business Model Canvas Template, 2024] |
| Point72 Ventures | Participated in earlier rounds; hedge fund's venture arm |
Traction and the Resident Friction Point
The housing-side traction is undeniable. Over 80 percent of the country's largest property management firms use the platform [Forbes Company Overview, 2026]. Case studies point to significant efficiency gains; Greystar reported a 112 percent increase in lead-to-tour conversion after implementation [EliseAI Blog - Greystar, 2026]. Headcount has scaled in parallel, growing from a team of 453 in 2025 to an estimated 501-1,000 employees today [GetLatka, 2025] [LinkedIn Company Page, 2026].
Yet the model introduces a unique risk: the end-user is not the buyer. Online forums reveal a friction point, with some residents expressing frustration with automated interactions they perceive as impersonal or unhelpful [Reddit, 2024].
The Next Twelve Months
The immediate roadmap is written in the Series E check. Sapphire Ventures cited plans to expand the workforce, the product suite, and its U.S. office footprint [BuiltIn NYC, ~2025]. The healthcare vertical will demand proof. The company is hiring for roles like Chief of Staff to the CEO and AI Operations Specialists, signaling a focus on scaling operations [AshbyHQ Job Posting, 2026].
The bet is that vertical AI agents, trained on industry-specific workflows and locked into critical software stacks, create a defensibility that horizontal chatbots cannot match.