Rational (Founding)
Funding Details
Awarder
YCombinator
Date Award
July 15, 2026
Vertical
B2B,Operations
Company Info
Founding Year
2026
Market
B2B
Location
San Francisco, CA, USA
Coinvestors
YCombinator
Company Description

Rational builds AI coworkers for accounting firms. Our agents onboard themselves to the firm, build a company brain, and do the work, from month-end close to tax prep. In addition, they follow up with clients and communicate with the right members of your team.

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