Kos AI

Kos is a virtual finance employee built for the accounting operations of American data center developers, defense companies, energy producers, and other capital-intensive industrial businesses. Instead of a dashboard, users onboard Kos like a coworker over email, chat, and Microsoft Teams, then hand it work such as reconciling accounts receivable, reviewing lender draw packages, and auditing multi-hundred-page pay applications. The launch centers on general availability of same-day pay application reviews, which target back-office workflows for data center, defense, and energy operators , a category of paperwork that today can tie up specialist consultants for hundreds of hours per invoice. The launch matters because the finance function has become a real bottleneck to the AI infrastructure buildout. The workflows powering America's reindustrialization, including draw requests, payment applications, PO reconciliation, freight and tariff tracking, and utilities billing, are among the most complex in any business and largely manual, with a single 100MW datacenter building potentially carrying three to five full-time accountants working in spreadsheets, PDFs, and email. Kos is pitched as domain-specific software that understands data center, power, and construction finance conventions, produces traceable citations back to the source page for every flag it raises, and prices on predictable compute rather than per-seat licenses. The company is based in San Francisco and was founded by Tanuj Thapliyal and Mani Kotaru, who met at Stanford as graduate researchers under Sachin Katti . Tanuj previously built Spot AI and brings operator depth in complex finance operations, while Mani contributes AI research experience and a view on where frontier models are capable today versus where purpose-built architecture is required. The $12 million inception financing was led by 8VC and XYZ Ventures in late 2025, followed by a debut at PTC and a beta program with early customers in January 2026.