Neil Madsen Net Worth (Estimated)

Who is Neil Madsen?

Neil Madsen is a founder associated with Fabius, which participated in Y Combinator's W23 batch.

About Fabius

Fabius helps sales leaders understand and improve their reps' performance by analyzing customer calls with AI. Companies like Airbyte and Fermat use us to score every call and identify when a customer hasn’t been properly qualified.

Fabius helps drive decisions within sales, including:

• Disqualify a deal: Reps work on deals that will never close. We identify the deals that won't be successful and make sure reps...

Model inputs

• Stage: inactive
• Valuation tier: fallback-inactive
• Valuation note: [scale: $500k-class amount looked like a YC check, not a published seed]
• Research as-of: 2026-08-04
• Funding source: https://www.linkedin.com/posts/newdecoded_fractional-ai-acquires-fabius-to-scale-applied-activity-7434553616142852096-lmwd

FAQ: Neil Madsen net worth and Fabius valuation

What is Neil Madsen's net worth?

Neil Madsen's estimated net worth / paper wealth is $56K (range $39K–$84K) as of 2026. Entrepreneurial Check publishes an independent model-based estimate from public company and role data.

Neil Madsen net worth

Neil Madsen's estimated net worth / paper wealth is $56K (range $39K–$84K) as of 2026. This Neil Madsen net worth figure is estimated paper wealth, not a verified statement of assets.

How much is Neil Madsen worth?

Neil Madsen's estimated net worth / paper wealth is $56K (range $39K–$84K) as of 2026. How much Neil Madsen is worth here means estimated paper wealth from public company and role data — not financial advice.

How rich is Neil Madsen?

Neil Madsen's estimated net worth / paper wealth is $56K (range $39K–$84K) as of 2026. “How rich is Neil Madsen” here means estimated paper wealth from public company and role data — not verified net worth or financial advice.

Neil Madsen fortune

Neil Madsen's estimated net worth / paper wealth is $56K (range $39K–$84K) as of 2026. This Neil Madsen fortune figure is estimated paper wealth only, not a verified statement of assets.

Neil Madsen equity value

Neil Madsen's estimated net worth / paper wealth is $56K (range $39K–$84K) as of 2026. Neil Madsen equity value on this page is modeled paper wealth from estimated ownership — not a disclosed cap table or verified net worth.

What is Fabius valuation?

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

What is Fabius post-money valuation?

Fabius'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 Fabius funding?

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

How much did Fabius raise?

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

How much money did Fabius raise?

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

What is Fabius series funding?

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

What company is Neil Madsen building?

Neil Madsen is Founder at Fabius, a Y Combinator-backed startup (batch W23).

What does Fabius do?

Fabius — AI to improve Sales Calls

What YC batch is Neil Madsen from?

Neil Madsen is associated with Y Combinator batch W23.

Where is Neil Madsen based?

Public directory data lists Neil Madsen's region as United States of America.

What industry is Neil Madsen in?

Neil Madsen is listed under B2B, Sales.

How big is Fabius?

Public data lists Fabius's team size as 2.

What is Fabius's status?

Fabius is listed as Inactive in public company data.

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.