Capitol AI
YC S24Washington, US · Founded 2021 · 11 employees · Hiring · 13 known investors
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Capitol builds sovereign AI infrastructure for regulated institutions including financial services firms, professional services organizations, and government agencies. The platform transforms proprietary data into decision-grade artifacts while maintaining complete audit trails and running entirely within customer infrastructure.
Founders & leadership· Y Combinator alumni (S24)
Capitol AI was founded in 2021 by Shaun Modi and thomas hallaran.


Investors · 13
How we know: the company's own site · the Y Combinator directory · press coverage · open dataset · 5k.vc investor directory · Not right? Tell us
How we know: Designer Fund's portfolio page · press coverage · the VCSheet dataset · open dataset · 5k.vc investor directory · Not right? Tell us
How we know: open dataset · 5k.vc investor directory · Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · rebelfund.vc · Not right? Tell us
How we know: Together Fund's portfolio page · press coverage · the VCSheet dataset · Y Combinator's founder network · Not right? Tell us
How we know: the VCSheet dataset · Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
The YC application· Summer 2024 batch
Alumni Q&A
- How did you decide to apply to Y Combinator? What was your experience applying, going through the batch, and fundraising at demo day?
- The founders applied at the encouragement of Brian Chesky, who had previously hired one of them (Shaun) at Airbnb. During the batch they worked with partners Garry, Ooshma, and Aaron, improved product velocity and customer acquisition, and signed a $1.3M term sheet with a major media brand.
- What's the history of your company from getting started until the present day? What were the big inflection points?
- The company grew out of Tom and a co-founder's work on Covid-19 logistics applications using AI models for HHS and the US DoD, where they found the interfaces from integrators like IBM, SAP, and Deloitte unusable. They started with a contract from the second-largest US health insurer to automate data storytelling for its self-insured employer line, using classical and Bayesian statistics with DBT, then pivoted away from healthcare to center the product on LLMs after GPT-3.5 launched. They recently closed a $1.3M enterprise contract.
Summarized from the founders' answers on their Y Combinator profile.
Related companies · 5
Companies working in the same space as Capitol AI.
Legal entities · 1
corporate structureIn the news
Frequently asked questions
- What does Capitol AI do?
- Capitol builds sovereign AI infrastructure for regulated institutions including financial services firms, professional services organizations, and government agencies. The platform transforms proprietary data into decision-grade artifacts while maintaining complete audit trails and running entirely within customer infrastructure.
- Who founded Capitol AI?
- Capitol AI was founded by Shaun Modi, thomas hallaran in 2021.
- Who are Capitol AI's investors?
- Capitol AI's investors include Y Combinator, Designer Fund, Failup Ventures, Imagination Capital, InvestorX, Maiora Rebel Ventures, Rebel Fund, Together Fund and 5 more.
- Where is Capitol AI headquartered?
- Capitol AI is headquartered in Washington, US.


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