Rational is an AI-powered accounting firm designed to automate accounting end-to-end.
Rational has raised $500K in total funding. The most recent round was Pre-Seed. The last funding was announced in September 2026.
Rational's investors include Y Combinator.
Rational is headquartered in San Francisco, United States.
Rational is an AI-powered accounting firm designed to automate accounting end-to-end.
Rational is at the Pre-Seed stage.
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"Rational — Funding & Investors." VCBacked, September 9, 2026, https://www.vcbacked.co/company/rational. Accessed October 1, 2026.
VCBacked. (2026). Rational — Funding & Investors. Retrieved October 1, 2026, from https://www.vcbacked.co/company/rational
{{cite web |title=Rational — Funding & Investors |url=https://www.vcbacked.co/company/rational |website=VCBacked |access-date=October 1, 2026}}Profile data sourced and verified per the VCbacked methodology · Last funding round dated