Derek Modzelewski Net Worth (Estimated)
Co-Founder and CTO at Rewbi · YC S24
Quick answer
Derek Modzelewski's estimated net worth / paper wealth is $20.0M (range $14.0M–$30.0M) as of 2026.
Derek Modzelewski is Co-Founder and CTO at Rewbi (YC S24). Independent Entrepreneurial Check model estimate from public YC data.
At a glance
- Company status: Active
- Education: Bachelor's degree from University of Michigan
- Region: United States of America
- Industries: Industrials, Energy
- Team size: 3
- Website: https://www.rewbi.com/
Who is Derek Modzelewski?
Derek Modzelewski is a founder at Rewbi, a company that participated in Y Combinator's Summer 2024 batch.
Highlights:
- University of Michigan
- Y Combinator
- Tech Startup
About Rewbi
Rewbi uses AI to optimize grid-connected battery storage. We generate revenue by charging when electricity is cheap and discharging when electricity is expensive.
We rent battery storage for a fixed fee per month, and we earn 2x that fee in monthly revenue by dispatching the battery optimally.
Today, power companies use human traders to manually track grid conditions and update the battery’s dispatch schedule....
Model inputs
- Stage: seed
- Valuation tier: raise-10x
- Funding input: reported raise $4.0M
- Valuation note: YC S24. Directory already null after scale scrub. Lock company-blog Apr 2025 $4M seed (YC, SurgePoint, Aera, General Catalyst, Collab Fund). Forbes Under 30 recap matches $4M. No public post-money.
- Research as-of: 2026-09-14
- Funding source: https://www.rewbi.com/post/rewbi-closes-4m-seed-round
FAQ: Derek Modzelewski net worth and Rewbi valuation
What is Derek Modzelewski's net worth?
Derek Modzelewski's estimated net worth / paper wealth is $20.0M (range $14.0M–$30.0M) as of 2026. Entrepreneurial Check publishes an independent model-based estimate from public company and role data.
Derek Modzelewski net worth
Derek Modzelewski's estimated net worth / paper wealth is $20.0M (range $14.0M–$30.0M) as of 2026. This Derek Modzelewski net worth figure is estimated paper wealth, not a verified statement of assets.
How much is Derek Modzelewski worth?
Derek Modzelewski's estimated net worth / paper wealth is $20.0M (range $14.0M–$30.0M) as of 2026. How much Derek Modzelewski is worth here means estimated paper wealth from public company and role data — not financial advice.
How rich is Derek Modzelewski?
Derek Modzelewski's estimated net worth / paper wealth is $20.0M (range $14.0M–$30.0M) as of 2026. “How rich is Derek Modzelewski” here means estimated paper wealth from public company and role data — not verified net worth or financial advice.
Derek Modzelewski fortune
Derek Modzelewski's estimated net worth / paper wealth is $20.0M (range $14.0M–$30.0M) as of 2026. This Derek Modzelewski fortune figure is estimated paper wealth only, not a verified statement of assets.
Derek Modzelewski equity value
Derek Modzelewski's estimated net worth / paper wealth is $20.0M (range $14.0M–$30.0M) as of 2026. Derek Modzelewski equity value on this page is modeled paper wealth from estimated ownership — not a disclosed cap table or verified net worth.
What is Rewbi valuation?
Rewbi's estimated valuation on Entrepreneurial Check is $40.0M. Independent model output, not a verified appraisal or official mark.
What is Rewbi post-money valuation?
Rewbi's estimated valuation on Entrepreneurial Check is $40.0M. That figure is a modeled post-money mark when a public raise is available — not a verified appraisal or official mark.
What is Rewbi funding?
Rewbi funding, when a public raise is available, is a model input on this Entrepreneurial Check profile. How much Rewbi raised is not a complete cap table — figures are estimates only.
How much did Rewbi raise?
How much Rewbi raised, when disclosed, informs the estimated Rewbi valuation and founder paper-wealth figures on this page. Independent estimate only — not a complete cap table or financial advice.
How much money did Rewbi raise?
How much money Rewbi raised, when a public figure is available, is a model input for the estimated Rewbi valuation on this profile. Estimates only — not a complete cap table.
What is Rewbi series funding?
Rewbi series funding, when a public raise is disclosed, informs the estimated Rewbi valuation here. Not a complete financing history.
What company is Derek Modzelewski building?
Derek Modzelewski is Co-Founder and CTO at Rewbi, a Y Combinator-backed startup (batch S24).
What does Rewbi do?
Rewbi — Rewbi uses AI to increase grid-connected battery storage revenue 2x
What YC batch is Derek Modzelewski from?
Derek Modzelewski is associated with Y Combinator batch S24.
Where did Derek Modzelewski go to school?
Public profiles associate Derek Modzelewski with Bachelor's degree from University of Michigan.
Where is Derek Modzelewski based?
Public directory data lists Derek Modzelewski's region as United States of America.
What industry is Derek Modzelewski in?
Derek Modzelewski is listed under Industrials, Energy.
How big is Rewbi?
Public data lists Rewbi's team size as 3.
What else is notable about Derek Modzelewski?
University of Michigan.
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.