Beau Tateyama Net Worth (Estimated)

Who is Beau Tateyama?

Beau Tateyama is a founder of Proof Trading, a company that participated in Y Combinator's Summer 2019 program.

Highlights:

• Y Combinator S19
• Proof Trading

About Proof Trading

Institutional equities broker-dealer

Model inputs

• Stage: seed
• Valuation tier: raise-10x
• Funding input: reported raise $150K
• Research as-of: 2026-08-04
• Funding source: https://medium.com/prooftrading/our-values-cbe121d1060c

FAQ: Beau Tateyama net worth and Proof Trading valuation

What is Beau Tateyama's net worth?

Beau Tateyama's estimated net worth / paper wealth is $375K (range $262K–$562K) as of 2026. Entrepreneurial Check publishes an independent model-based estimate from public company and role data.

Beau Tateyama net worth

Beau Tateyama's estimated net worth / paper wealth is $375K (range $262K–$562K) as of 2026. This Beau Tateyama net worth figure is estimated paper wealth, not a verified statement of assets.

How much is Beau Tateyama worth?

Beau Tateyama's estimated net worth / paper wealth is $375K (range $262K–$562K) as of 2026. How much Beau Tateyama is worth here means estimated paper wealth from public company and role data — not financial advice.

How rich is Beau Tateyama?

Beau Tateyama's estimated net worth / paper wealth is $375K (range $262K–$562K) as of 2026. “How rich is Beau Tateyama” here means estimated paper wealth from public company and role data — not verified net worth or financial advice.

Beau Tateyama fortune

Beau Tateyama's estimated net worth / paper wealth is $375K (range $262K–$562K) as of 2026. This Beau Tateyama fortune figure is estimated paper wealth only, not a verified statement of assets.

Beau Tateyama equity value

Beau Tateyama's estimated net worth / paper wealth is $375K (range $262K–$562K) as of 2026. Beau Tateyama equity value on this page is modeled paper wealth from estimated ownership — not a disclosed cap table or verified net worth.

What is Proof Trading valuation?

Proof Trading's estimated valuation on Entrepreneurial Check is $1.5M. Independent model output, not a verified appraisal or official mark.

What is Proof Trading post-money valuation?

Proof Trading's estimated valuation on Entrepreneurial Check is $1.5M. That figure is a modeled post-money mark when a public raise is available — not a verified appraisal or official mark.

What is Proof Trading funding?

Proof Trading funding, when a public raise is available, is a model input on this Entrepreneurial Check profile. How much Proof Trading raised is not a complete cap table — figures are estimates only.

How much did Proof Trading raise?

How much Proof Trading raised, when disclosed, informs the estimated Proof Trading valuation and founder paper-wealth figures on this page. Independent estimate only — not a complete cap table or financial advice.

How much money did Proof Trading raise?

How much money Proof Trading raised, when a public figure is available, is a model input for the estimated Proof Trading valuation on this profile. Estimates only — not a complete cap table.

What is Proof Trading series funding?

Proof Trading series funding, when a public raise is disclosed, informs the estimated Proof Trading valuation here. Not a complete financing history.

What company is Beau Tateyama building?

Beau Tateyama is Founder at Proof Trading, a Y Combinator-backed startup (batch S19).

What does Proof Trading do?

Proof Trading — Institutional equities broker-dealer

What YC batch is Beau Tateyama from?

Beau Tateyama is associated with Y Combinator batch S19.

Where is Beau Tateyama based?

Public directory data lists Beau Tateyama's region as United States of America.

What industry is Beau Tateyama in?

Beau Tateyama is listed under Fintech, Banking and Exchange.

How big is Proof Trading?

Public data lists Proof Trading's team size as 7.

What else is notable about Beau Tateyama?

Y Combinator S19.

Is Entrepreneurial Check affiliated with Y Combinator?

No. Entrepreneurial Check is an independent informational site and is not affiliated with, endorsed by, or sponsored by Y Combinator or the profiled companies.