Jonathan Mairena Net Worth (Estimated)

Who is Jonathan Mairena?

Jonathan Mairena is a founder associated with Zeal, which was part of Y Combinator's Summer 2019 batch.

About Zeal

Modern payroll for modern work

Model inputs

• Stage: series-a
• Valuation tier: fallback-series-a
• Valuation note: no_discovery_sources [scale: scrape amount with no URL is not a priced primary]
• Research as-of: 2026-08-04
• Funding input: no public raise amount found; stage fallback valuation

FAQ: Jonathan Mairena net worth and Zeal valuation

What is Jonathan Mairena's net worth?

Jonathan Mairena's estimated net worth / paper wealth is $7.5M (range $5.2M–$11.2M) as of 2026. Entrepreneurial Check publishes an independent model-based estimate from public company and role data.

Jonathan Mairena net worth

Jonathan Mairena's estimated net worth / paper wealth is $7.5M (range $5.2M–$11.2M) as of 2026. This Jonathan Mairena net worth figure is estimated paper wealth, not a verified statement of assets.

How much is Jonathan Mairena worth?

Jonathan Mairena's estimated net worth / paper wealth is $7.5M (range $5.2M–$11.2M) as of 2026. How much Jonathan Mairena is worth here means estimated paper wealth from public company and role data — not financial advice.

How rich is Jonathan Mairena?

Jonathan Mairena's estimated net worth / paper wealth is $7.5M (range $5.2M–$11.2M) as of 2026. “How rich is Jonathan Mairena” here means estimated paper wealth from public company and role data — not verified net worth or financial advice.

Jonathan Mairena fortune

Jonathan Mairena's estimated net worth / paper wealth is $7.5M (range $5.2M–$11.2M) as of 2026. This Jonathan Mairena fortune figure is estimated paper wealth only, not a verified statement of assets.

Jonathan Mairena equity value

Jonathan Mairena's estimated net worth / paper wealth is $7.5M (range $5.2M–$11.2M) as of 2026. Jonathan Mairena equity value on this page is modeled paper wealth from estimated ownership — not a disclosed cap table or verified net worth.

What is Zeal valuation?

Zeal's estimated valuation on Entrepreneurial Check is $80.0M. Independent model output, not a verified appraisal or official mark.

What is Zeal post-money valuation?

Zeal's estimated valuation on Entrepreneurial Check is $80.0M. That figure is a modeled post-money mark when a public raise is available — not a verified appraisal or official mark.

What is Zeal funding?

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

How much did Zeal raise?

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

How much money did Zeal raise?

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

What is Zeal series funding?

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

What company is Jonathan Mairena building?

Jonathan Mairena is Founder at Zeal, a Y Combinator-backed startup (batch S19).

What does Zeal do?

Zeal — Modern payroll for modern work

What YC batch is Jonathan Mairena from?

Jonathan Mairena is associated with Y Combinator batch S19.

Where is Jonathan Mairena based?

Public directory data lists Jonathan Mairena's region as United States of America.

What industry is Jonathan Mairena in?

Jonathan Mairena is listed under Fintech.

How big is Zeal?

Public data lists Zeal's team size as 45.

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.