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Proof Trading
YC S19New York City, US · Founded 2019 · Delaware corporation · 7 employees · 10 known investors
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A broker-dealer providing institutional equities trading services.
Also known as Proof
Founders & leadership· Y Combinator alumni (S19)
Proof Trading was founded in 2019 by Daniel Aisen, Allison Bishop, and Prerak Sanghvi.
Investors · 10
How we know: Y Combinator's founder network · boxgroup.com · Not right? Tell us
How we know: Green Visor Capital's portfolio page · open dataset · 5k.vc investor directory · Y Combinator's founder network · Not right? Tell us
How we know: MAGIC Fund's portfolio page · the VCSheet dataset · open dataset · 5k.vc investor directory · Y Combinator's founder network · Not right? Tell us
How we know: Moxxie Ventures's portfolio page · the VCSheet dataset · Y Combinator's founder network · Not right? Tell us
How we know: the Y Combinator directory · open dataset · 5k.vc investor directory · 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
How we know: Y Combinator's founder network · Not right? Tell us
Reported raises · per SEC filings
Form D private placements$4.6M disclosed across 1 round · 2020
▶$4.6MraisedSep 2020 · 38 investors · OtherRule 506(b)
- Prerak SanghviExecutive Officer, Director
- Allison BishopExecutive Officer, Director
- Beau TateyamaExecutive Officer, Director
- Daniel AisenExecutive Officer, Director, Promoter
- Offering amount
- $4.6M
- Amount sold
- $4.6M
- First sale
- Sep 2020
- Incorporated
- Corporation, Delaware, 2019
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Company profile
researched Aug 2026Proof Trading is an institutional equities broker-dealer based in New York City, founded in 2019. The company operates an execution platform that builds algorithms to trade on behalf of institutional clients, with a stated emphasis on transparency and accountability in the execution process.
The firm operates as an execution-only broker-dealer and describes its aim as improving the prices investors receive. It participated in Y Combinator's Summer 2019 batch and is categorized as a fintech company at the seed stage.
Business model
Proof Trading operates as an execution-only broker-dealer, providing algorithmic equities execution services to institutional clients rather than taking proprietary positions.
Traction
Reported team size of seven on Y Combinator's profile and nine current employees per aVenture, which noted headcount growth of 28.6% over the preceding year.
▸Full profile — market position, technology, go-to-market, geography, history
Market position
Proof Trading is positioned as a newer, technology-driven entrant in institutional equities execution; comparable companies referenced alongside it include Imperative Execution and Authentic Indication.
Technology
The company builds its own trading algorithms designed to navigate the equities market on behalf of client orders, with transparency and accountability into execution as a stated design goal.
Go-to-market
Institutional investors trading US equities.
Geography
Headquartered in New York City, New York, United States, at 20 Pine Street.
History
Founded in 2019 by Daniel Aisen and Allison Bishop, the company took part in Y Combinator's Summer 2019 accelerator batch. In January 2023 press coverage reported the addition of a former Citi trader and a Goldman executive to its leadership team, and in March 2023 co-founder Allison Bishop was covered in the trade press in connection with efforts to increase trading transparency. Headcount has remained small, reported at seven to nine people.
Compiled by commissioned research from 6 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Related companies · 10
Companies working in the same space as Proof Trading.
Timeline · 2
launches, deals, and filingsPress coverage listed on Proof Trading's Y Combinator profile reported that an ex-Citi trader and a Goldman executive joined the company's leadership team.
Proof Trading was part of Y Combinator's Summer 2019 (S19) accelerator batch.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
Legal entities · 2
corporate structure▸Research sources · 6
primary sources listed
- Proof Trading: Institutional equities broker-dealer | Y Combinatorycombinator.com · web
6 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Proof Trading do?
- Institutional equities execution broker-dealer building trading algorithms for institutional clients.
- Who founded Proof Trading?
- Proof Trading was founded by Daniel Aisen, Allison Bishop, Prerak Sanghvi in 2019.
- Who are Proof Trading's investors?
- Proof Trading's investors include BoxGroup, Green Visor Capital, MAGIC Fund, Moxxie Ventures, Y Combinator, Agrolimen Ventures, BCo Venture, Correlation Ventures and 2 more.
- How much funding has Proof Trading raised?
- Proof Trading has disclosed $4.6M raised across 1 round.
- Where is Proof Trading headquartered?
- Proof Trading is headquartered in New York City, US.