RECENT FUNDING
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  3. Rational

Rational

FintechY Combinator
Latest funding

Pre Seed ·

Amount not disclosed in a source on record.

Funding history ↓
Website: rational.to.
X: @rationaldotto · 46 followers.
LinkedIn: linkedin.com.
Category: Fintech.
Sectors: zero-human accounting firm.
Subcategory: autonomous accounting firm.
Stage: Pre Seed.
Based in: San Francisco, United States.
Last round: Sep 11, 2026 · 62 days ago.
Team: 2 people on the team page.
On Recent Funding since: Sep 11, 2026.

Signals

X account@rationaldotto · created Mar 27, 2026 (8 months old) · 46 followers
Website registeredApr 21, 2026 (7 months old)
TIMELINE · MILESTONES

Rational | 168 days from X account to first raise on record

@rationaldotto·1 round·2 signals before the first raise
APRMAYJUNJULAUGSEPOCTNOV||X ACCOUNT CREATED @RATIONALDOTTO · MAR 27, 2026||WEBSITE CREATED · APR 21, 2026Pre Seed · Sep 11, 2026PRE-SEED · SEP '26

One step per dated milestone. Pins are dated signals; hover the icons for dates.

Funding rounds

  1. Pre Seed · amount undisclosed
    YY Combinator
  2. Website created
  3. X account created

Founders and team

Investors

Companies like Rational

Sources and API

Every amount links to the page it came from. * Estimated from an accelerator's published standard deal, not a company-specific disclosure. How Recent Funding sources and verifies funding data. The same data as JSON: /api/v1/companies/rational (get a free API key).

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