Sergey Fayfer Net Worth (Estimated)

Who is Sergey Fayfer?

Sergey Fayfer is a founder of Sayana, which was a part of Y Combinator's Winter 2020 batch.

Highlights:

• Stanford University
• Goldman Sachs
• TechCrunch Disrupt finalist

About Sayana

Sayana is a mental wellness app that helps people track their thoughts and feelings daily, get relevant tips on how to cope with emotions, and match with people in a similar life situation.

Model inputs

• Stage: acquired
• Valuation tier: fallback-acquired
• Valuation note: [scale: acquired/inactive raise amount not used as 10× input]
• Research as-of: 2026-08-04
• Funding source: https://techcrunch.com/2022/01/12/headspace-health-acquires-ai-powered-mental-health-and-wellness-company-sayana/

FAQ: Sergey Fayfer net worth and Sayana valuation

What is Sergey Fayfer's net worth?

Sergey Fayfer's estimated net worth / paper wealth is $15.0M (range $10.5M–$22.5M) as of 2026. Entrepreneurial Check publishes an independent model-based estimate from public company and role data.

Sergey Fayfer net worth

Sergey Fayfer's estimated net worth / paper wealth is $15.0M (range $10.5M–$22.5M) as of 2026. This Sergey Fayfer net worth figure is estimated paper wealth, not a verified statement of assets.

How much is Sergey Fayfer worth?

Sergey Fayfer's estimated net worth / paper wealth is $15.0M (range $10.5M–$22.5M) as of 2026. How much Sergey Fayfer is worth here means estimated paper wealth from public company and role data — not financial advice.

How rich is Sergey Fayfer?

Sergey Fayfer's estimated net worth / paper wealth is $15.0M (range $10.5M–$22.5M) as of 2026. “How rich is Sergey Fayfer” here means estimated paper wealth from public company and role data — not verified net worth or financial advice.

Sergey Fayfer fortune

Sergey Fayfer's estimated net worth / paper wealth is $15.0M (range $10.5M–$22.5M) as of 2026. This Sergey Fayfer fortune figure is estimated paper wealth only, not a verified statement of assets.

Sergey Fayfer equity value

Sergey Fayfer's estimated net worth / paper wealth is $15.0M (range $10.5M–$22.5M) as of 2026. Sergey Fayfer equity value on this page is modeled paper wealth from estimated ownership — not a disclosed cap table or verified net worth.

What is Sayana valuation?

Sayana's estimated valuation on Entrepreneurial Check is $100.0M. Independent model output, not a verified appraisal or official mark.

What is Sayana post-money valuation?

Sayana's estimated valuation on Entrepreneurial Check is $100.0M. That figure is a modeled post-money mark when a public raise is available — not a verified appraisal or official mark.

What is Sayana funding?

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

How much did Sayana raise?

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

How much money did Sayana raise?

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

What is Sayana series funding?

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

What company is Sergey Fayfer building?

Sergey Fayfer is Founder at Sayana, a Y Combinator-backed startup (batch W20).

What does Sayana do?

Sayana — Affordable mental self-care for all. Acquired by Headspace Health.

What YC batch is Sergey Fayfer from?

Sergey Fayfer is associated with Y Combinator batch W20.

Where did Sergey Fayfer go to school?

Public profiles associate Sergey Fayfer with Stanford University.

What other companies is Sergey Fayfer connected to?

Public associations for Sergey Fayfer include Goldman Sachs, Sayana.

Where is Sergey Fayfer based?

Public directory data lists Sergey Fayfer's region as United States of America.

What industry is Sergey Fayfer in?

Sergey Fayfer is listed under Healthcare, Consumer Health and Wellness.

How big is Sayana?

Public data lists Sayana's team size as 2.

What is Sayana's status?

Sayana is listed as Acquired in public company data.

What else is notable about Sergey Fayfer?

Stanford University.

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.