Rational
AI Employees for Accounting
YC Summer 2026EnterpriseAI
About Rational
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.
Founders
Jibril Moinuddin
Founder
CEO at Rational. Previously founded STEMplicity Education. Dropped out of University of Michigan.
Christ Xu
Founder
CTO at Rational. Previously exited for $400K and youngest Senior SWE at Tencent. Jane Street ML Engineer and OpenAI SWE intern. 2x IOI Camp, IMO Camp, published algorithm researcher.