CarbonAI has raised $12M led by Cowboy Ventures for AI agents that handle underwriting, due diligence and post-close monitoring on commercial real estate loans. The EU AI Act treats consumer credit decisions as high-risk but not corporate lending, a line that blurs when a sponsor gives a personal guarantee.
CarbonAI has raised $12M for AI agents that do the analytical work behind commercial property loans. The New York company sells only in the US. In Europe the same software would sit outside the AI Act’s credit rules, until a sponsor signs a personal guarantee.
Cowboy Ventures led the round, according to the announcement, with Timber Grove Ventures, Bling Capital and Max Ventures. Neither a stage nor a valuation was disclosed.
The agents pull figures from rent rolls, leases, financial statements and legal documents, build the underwriting model, draft the memo and flag risks. Each number links back to its source document. Decisions needing human judgment go to the lending team.
Co-founders Jeff Saul and Josh Kaufman underwrote commercial property loans at Starwood Capital, Morgan Stanley and Guggenheim, then built the deal platform Nativ and sold it to Built. Greystone is the only customer named.
Mortgage underwriting agents are high-risk in Europe. Vesta raised $30M last week for agents that make mortgage decisions, work the EU treats very differently.
Annex III of the AI Act covers systems used to evaluate “the creditworthiness of natural persons” or set their credit score, with one carve-out for fraud detection. Companies are not natural persons.
Berlin’s Taktile raised $110M in June for agents that underwrite business loans, and sits outside the same provision for the same reason.
CarbonAI says its customers include debt funds, mortgage real estate investment trusts and agency multifamily lenders. Its borrowers are companies.
The line is not clean. Commercial property loans routinely carry personal guarantees from their sponsors, and the provision bites the moment an individual’s creditworthiness is assessed. Those duties were pushed to December 2027.
The announcement cites a $20 trillion US commercial property market and $875B of mortgages maturing this year, on Mortgage Bankers Association figures, against roughly $50B a year spent underwriting them.
Europe’s market is not in that condition. Revolut’s property lending chief left this month, less than two years after being hired to build the business.
Lenders there are competing for fewer deals as rates stay high, Bloomberg reported, which is squeezing their margins.
CarbonAI’s own figures are the ones to watch. It reports seven-figure contracted revenue within six months, and up to 90% of time saved on selected underwriting tasks, with no methodology given. Build, a British-founded firm doing the same for data centres, claims over 95%.