YC Summer 2026 (S26) company

Billow AI Labs

AI-native Accounting & Finance Firm for Regulated Industries

About Billow AI Labs

Billow handles the work of Accounting and FP&A FTEs for regulated companies while keeping teams compliant and audit-ready. We work within existing stacks (NetSuite, Coupa, and 80+ other systems) and complex spreadsheets, chasing down information and coordinating approvals across stakeholders. Built by repeat founders; Joan built and exited an accounting/ERP platform (45,000 businesses in 4 years) and Phil built Bloomberg's financial “brain” data infrastructure, and as CTO of a trading platform ($1B in volume). Advisors include CFOs, controllers, auditors from publicly-traded biopharma, and a Big-4 Accounting firm.

Public traction evidence

Each signal links to the public source used for attribution.

  1. LinkedIn

    The Billow AI (YC S26) is now backed by Y Combinator

    The Billow AI (YC S26) is now backed by Y Combinator. Excited for the next 12 weeks and to build AI employees for finance teams.

  2. X

    Lets go!

    Lets go!