Arize AI
ACTIVEStartupPlatform companyAI infrastructure company
ArizeArize AI, Inc.
Arize AI, Inc. (Berkeley, 2020, Jason Lopatecki and Aparna Dhinakaran) — leader in AI observability and evaluation. Portfolio: Arize AX (managed platform), Phoenix (open-source, 5M+ downloads/mo), OpenInference (open standard). $131M raised (Series C 2025). Customers: Reddit, Uber, Spotify, DoorDash, PepsiCo, Atlassian.
Founded2020
Total fundingTotal ~$131M across 4 rounds: Seed (~$4M, Foundation Capital, 2020), Series A ($19M, Battery Ventures, 2021), Series B ($38M, TCV, 2022), Series C ($70M, Adams Street, February 2025). Investors: Foundation Capital, Battery Ventures, TCV, Swift Ventures, Adams Street, M12 (Microsoft), Datadog, PagerDuty, OMERS, Sinewave, Industry Ventures, Archerman Capital.4 · 2020–2025
Valuation~$400M (Series C, February 2025, press estimate)2025
