Sift

Stub active Updated Apr 3, 2026

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Location El Segundo, California
Founded 2022
Latest Stage Series B
Total Raised $67M
Website https://www.siftstack.com
Sector
ai-infrastructure aerospace defense manufacturing data-infrastructure

Investors

Albert Wenger Series A ($5.5M) (2013)
Josh Kopelman Seed (2011)
Bill Trenchard Series A (2013)
GV (Google Ventures) series-b (2026)
Union Square Ventures Series A ($5.5M) (2013)
First Round Capital Seed (2011)

Founders

Karthik Gollapudi CEO & Co-Founder
Austin Spiegel Co-Founder

About

Sift is an El Segundo, California-based startup building the intelligence layer for mission-critical machines, transforming raw sensor data from hardware systems into structured, queryable data 1. Co-founded by former SpaceX engineers Karthik Gollapudi and Austin Spiegel, the platform serves space, defense, manufacturing, and autonomous vehicle industries by enabling both engineers and AI systems to monitor and operate complex hardware systems 12.

Funding History

Date Round Amount Lead Co-investors
2026-03-25 Series B $42M StepStone GV, Riot Ventures, Fika Ventures, CIV 12

Total raised: $67M 1.

What Investors Say

No verified investor quotes found at this time.

What Founders Say

No independently sourced founder testimonials found.

Sources

  1. PR Newswire, “Sift Raises $42M Series B to Build AI Infrastructure for Mission-Critical Machines,” March 25, 2026. https://www.prnewswire.com/news-releases/sift-raises-42m-series-b-to-build-ai-infrastructure-for-mission-critical-machines-302724877.html↩↩↩↩

  2. TechCrunch, “With Sift, two ex-SpaceX engineers are bringing the software that helped launch rockets to the factory floor,” March 25, 2026. https://techcrunch.com/2026/03/25/with-sift-stack-two-ex-spacex-engineers-are-bringing-the-software-that-helped-launch-rockets-to-the-factory-floor/↩↩