EntrepreneurialCheck
Jason McCay estimated net worth profile

Jason McCay Net Worth (Estimated)

Founder at Compose · YC W20, S11

est. wealth $19K

Quick answer

Jason McCay's estimated net worth / paper wealth is $19K (range $13K–$28K) as of 2026.

Jason McCay is Founder at Compose (YC W20, S11). Independent Entrepreneurial Check model estimate from public YC data.

At a glance

NameJason McCay
RoleFounder
CompanyCompose
YC batchW20, S11
Est. company val$1.0M
Assumed ownership2%
Est. paper wealth / net worth$19K
$13K – $28K
  • Company status: Inactive
  • Education: Stanford University
  • Region: United States of America
  • Industries: B2B, Engineering, Product and Design, Infrastructure
  • Team size: 5
  • Website: http://www.enveloop.com

Who is Jason McCay?

Jason McCay is a founder at Compose, a company that participated in the Y Combinator program.

Highlights:

  • Y Combinator
  • Stanford University

About Compose

A developer-focused message builder and API that makes it easy to send emails and texts from your app using one simple implementation. We’re doing for mailer libraries what Prisma does for ORMs.

Model inputs

  • Stage: inactive
  • Valuation tier: fallback-inactive
  • Valuation note: no_discovery_sources [scale: acquired/inactive raise amount not used as 10× input]
  • Research as-of: 2026-08-04
  • Funding input: no public raise amount found; stage fallback valuation

FAQ: Jason McCay net worth and Compose valuation

What is Jason McCay's net worth?

Jason McCay's estimated net worth / paper wealth is $19K (range $13K–$28K) as of 2026. Entrepreneurial Check publishes an independent model-based estimate from public company and role data.

Jason McCay net worth

Jason McCay's estimated net worth / paper wealth is $19K (range $13K–$28K) as of 2026. This Jason McCay net worth figure is estimated paper wealth, not a verified statement of assets.

How much is Jason McCay worth?

Jason McCay's estimated net worth / paper wealth is $19K (range $13K–$28K) as of 2026. How much Jason McCay is worth here means estimated paper wealth from public company and role data — not financial advice.

How rich is Jason McCay?

Jason McCay's estimated net worth / paper wealth is $19K (range $13K–$28K) as of 2026. “How rich is Jason McCay” here means estimated paper wealth from public company and role data — not verified net worth or financial advice.

Jason McCay fortune

Jason McCay's estimated net worth / paper wealth is $19K (range $13K–$28K) as of 2026. This Jason McCay fortune figure is estimated paper wealth only, not a verified statement of assets.

Jason McCay equity value

Jason McCay's estimated net worth / paper wealth is $19K (range $13K–$28K) as of 2026. Jason McCay equity value on this page is modeled paper wealth from estimated ownership — not a disclosed cap table or verified net worth.

What is Compose valuation?

Compose's estimated valuation on Entrepreneurial Check is $1.0M. Independent model output, not a verified appraisal or official mark.

What is Compose post-money valuation?

Compose's estimated valuation on Entrepreneurial Check is $1.0M. That figure is a modeled post-money mark when a public raise is available — not a verified appraisal or official mark.

What is Compose funding?

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

How much did Compose raise?

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

How much money did Compose raise?

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

What is Compose series funding?

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

What company is Jason McCay building?

Jason McCay is Founder at Compose, a Y Combinator-backed startup (batch W20, S11).

What does Compose do?

Compose — Design and send messages from your app with a simple API.

What YC batch is Jason McCay from?

Jason McCay is associated with Y Combinator batch W20, S11.

Where did Jason McCay go to school?

Public profiles associate Jason McCay with Stanford University.

What other companies is Jason McCay connected to?

Public associations for Jason McCay include Enveloop.

Where is Jason McCay based?

Public directory data lists Jason McCay's region as United States of America.

What industry is Jason McCay in?

Jason McCay is listed under B2B, Engineering, Product and Design, Infrastructure.

How big is Compose?

Public data lists Compose's team size as 5.

What is Compose's status?

Compose is listed as Inactive in public company data.

What else is notable about Jason McCay?

Y Combinator.

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.