Grant Demaree Net Worth (Estimated)

Who is Grant Demaree?

Grant Demaree is a founder associated with Onebrief, a company that was part of Y Combinator's Summer 2021 batch.

Highlights:

• Y Combinator S21
• Onebrief

About Onebrief

Virtually everything in the military requires a plan—from everyday operations to war-time missions. With a rigorous process, many stakeholders, and rudimentary software (PowerPoint!!), planning is very slow.

Onebrief is a collaborative software designed to make military planning fast. It turns every input into reusable building blocks and automatically keeps all planning artifacts in sync.

Model inputs

• Stage: series-d
• Valuation tier: reported-valuation
• Funding input: reported raise $200.0M
• ARR input: $90.0M
• Current valuation input: $2.1B
• Valuation note: Lock $200M Series D at $2.15B. Do not treat the aggregate as all primary.
• Research as-of: 2026-09-14
• Funding source: https://www.reuters.com/technology/defense-tech-firm-onebrief-valued-over-2-billion-latest-funding-round-2026-01-13/

FAQ: Grant Demaree net worth and Onebrief valuation

What is Grant Demaree's net worth?

Grant Demaree's estimated net worth / paper wealth is $112.9M (range $79.0M–$169.3M) as of 2026. Entrepreneurial Check publishes an independent model-based estimate from public company and role data.

Grant Demaree net worth

Grant Demaree's estimated net worth / paper wealth is $112.9M (range $79.0M–$169.3M) as of 2026. This Grant Demaree net worth figure is estimated paper wealth, not a verified statement of assets.

How much is Grant Demaree worth?

Grant Demaree's estimated net worth / paper wealth is $112.9M (range $79.0M–$169.3M) as of 2026. How much Grant Demaree is worth here means estimated paper wealth from public company and role data — not financial advice.

How rich is Grant Demaree?

Grant Demaree's estimated net worth / paper wealth is $112.9M (range $79.0M–$169.3M) as of 2026. “How rich is Grant Demaree” here means estimated paper wealth from public company and role data — not verified net worth or financial advice.

Grant Demaree fortune

Grant Demaree's estimated net worth / paper wealth is $112.9M (range $79.0M–$169.3M) as of 2026. This Grant Demaree fortune figure is estimated paper wealth only, not a verified statement of assets.

Grant Demaree equity value

Grant Demaree's estimated net worth / paper wealth is $112.9M (range $79.0M–$169.3M) as of 2026. Grant Demaree equity value on this page is modeled paper wealth from estimated ownership — not a disclosed cap table or verified net worth.

What is Onebrief valuation?

Onebrief's estimated valuation on Entrepreneurial Check is $2.1B. Independent model output, not a verified appraisal or official mark.

What is Onebrief post-money valuation?

Onebrief's estimated valuation on Entrepreneurial Check is $2.1B. That figure is a modeled post-money mark when a public raise is available — not a verified appraisal or official mark.

What is Onebrief funding?

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

How much did Onebrief raise?

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

How much money did Onebrief raise?

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

What is Onebrief series funding?

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

What company is Grant Demaree building?

Grant Demaree is Founder at Onebrief, a Y Combinator-backed startup (batch S21).

What does Onebrief do?

Onebrief — Onebrief makes military headquarters run seamlessly

What YC batch is Grant Demaree from?

Grant Demaree is associated with Y Combinator batch S21.

Where is Grant Demaree based?

Public directory data lists Grant Demaree's region as United States of America.

What industry is Grant Demaree in?

Grant Demaree is listed under B2B.

How big is Onebrief?

Public data lists Onebrief's team size as 200.

What else is notable about Grant Demaree?

Y Combinator S21.

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.