AI infrastructure

AfterQuery

Website
Founded 2025Origin source ↗Checked 2026-09-15

Overview

AfterQuery is an applied research lab curating data solutions for frontier foundation model development. Serving every frontier AI lab.

Company description As recorded 2026-11-08

Founders & team

Previously Cronus

Company history As recorded 2026-11-08

Spencer Mateega

Founder/CEO

Building AfterQuery. Previously interned in technology private equity at Silver Lake, technology investment banking at Morgan Stanley, and software engineering at Meta and Google. B.S. in Finance and Statistics at Wharton and a M.S. Computer Science at Penn.

Founder profile As recorded 2026-09-15

Carlos Georgescu

Founder/CTO

Building AfterQuery. Previously interned at Citadel Securities (2x), Meta & Google as a software engineer. Past acquired ed-tech founder. Studied for a B.S. in Computer Science from the University of British Columbia.

Founder profile As recorded 2026-09-15
30team members reported
Source-reported As recorded 2026-09-15

Founded 2025 · Source

News & product activity

Sources & observations

Y Combinator

Profile depthenriched profile
Website observationwebsite reachable
Last website check2026-11-11
Location · source statedSan Francisco, CA, USA
Pricing evidenceNo pricing page confirmed
Maturity: Not assessed · 3 of 6 areas documented

Source-based assessment · automated evidence rules

The retained text does not establish product availability or customer use.

Maturity is an evidence-based assessment, not a success rating. It may understate the current stage where evidence is limited. Coverage records documented areas, not a complete or independently audited company history.

Stage definitions
independent websitesource corroborationreachable websitedescriptive evidenceclassified market and modelsourced peoplesourced founding yearrecent publishing observed