AfterQuery

Powering all of the frontier AI research labs

AfterQuery is an applied research lab curating data solutions for foundation model development. They serve every frontier AI lab with the mission of delivering the best data to power the best models. In doing so, AfterQuery makes expertise that once took a lifetime to build available to anyone who needs it.

Spencer Mateega is Co-founder and CEO of AfterQuery. Prior to founding AfterQuery, Spencer spent time in technology private equity at Silver Lake, investment banking at Morgan Stanley, and software engineering at Meta and Google. Spencer graduated with a bachelor’s degree in Finance and Statistics from the Wharton School and concurrently received his master’s in Computer Science from the University of Pennsylvania.

© 2026 Breakthrough Ventures. All Rights Reserved.

© 2026 Breakthrough Ventures.

All Rights Reserved.

© 2026 Breakthrough Ventures. All Rights Reserved.