Spencer Mateega net worth
Quick answer
Spencer Mateega's estimated net worth is $28.0M (range $19.6M – $42.0M) as of 2026. Spencer Mateega is Co-Founder at AfterQuery. AfterQuery valuation.
Spencer Mateega is Co-Founder at AfterQuery (YC W25). Independent Entrepreneurial Check model estimate from public YC data.
At a glance
- Company status: Active
- Region: United States of America
- Industries: B2B, Infrastructure
- Team size: 30
- Website: https://afterquery.com
Who is Spencer Mateega?
Spencer Mateega is a founder at AfterQuery, a startup that was part of Y Combinator's W25 batch.
About AfterQuery
AfterQuery is an applied research lab curating data solutions for frontier foundation model development. Serving every frontier AI lab.
FAQ: Spencer Mateega net worth and AfterQuery valuation
What is Spencer Mateega's net worth?
Spencer Mateega's estimated net worth is $28.0M (range $19.6M – $42.0M) as of 2026. Spencer Mateega is Co-Founder at AfterQuery. 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 AfterQuery valuation?
AfterQuery's estimated valuation on Entrepreneurial Check is $300.0M. 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 Spencer Mateega's role?
Spencer Mateega is Co-Founder at AfterQuery, a Y Combinator-backed startup (batch W25).