Jairaj Sethi net worth
Quick answer
Jairaj Sethi's estimated net worth is $28.88M (range $20.21M – $43.31M) as of 2026. Jairaj Sethi is Founder at Substack. Substack valuation.
Jairaj Sethi is Founder at Substack (YC W18). Independent Entrepreneurial Check model estimate from public YC data.
At a glance
- Company status: Active
- Region: United States of America
- Industries: B2B, Marketing
- Team size: 90
- Website: https://substack.com
Who is Jairaj Sethi?
Jairaj Sethi is a founder at Substack, having participated in the Y Combinator Winter 2018 batch.
Highlights:
- Y Combinator W18
- Substack
About Substack
Start a newsletter. Build your community. Make money from subscriptions. Publishing is free, with no limits. We only make money when you do.
FAQ: Jairaj Sethi net worth and Substack valuation
What is Jairaj Sethi's net worth?
Jairaj Sethi's estimated net worth is $28.88M (range $20.21M – $43.31M) as of 2026. Jairaj Sethi is Founder at Substack. Entrepreneurial Check publishes an independent model-based estimate from public company and role data. Not verified net worth, and Entrepreneurial Check is not affiliated with Y Combinator or the profiled companies.
What is Substack valuation?
Substack's estimated valuation on Entrepreneurial Check is $1.1B. That valuation, or a disclosed round when one is public, is the source for the paper-wealth estimate. Independent model output — not a verified appraisal or official mark.
What is Jairaj Sethi's role?
Jairaj Sethi is Founder at Substack, a Y Combinator-backed startup (batch W18).