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Kleiner Perkins portfolio AI companies

Sand Hill Road institution backing software, climate, and biotech. Filtered to companies in AI.

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Built from a search like: “Kleiner Perkins-backed AI companies”

Ranked by current headcount across Kleiner Perkins-backed AI companies. Refreshed monthly.

  1. 1
    Arena· San Francisco, California, United States

    Created by researchers from UC Berkeley, Arena (formerly LMArena) is a community-powered platform to measure and advance the frontier of AI for real-world use. Tens of millions of builders, researchers, and creative professionals come to Arena to use frontier models and give feedback on their responses, shaping a public leaderboard grounded in real-world use.

    • Series A
    • 96 employees
    • Founded 2025
  2. 2
    Engram· San Francisco, California, United States

    Scaling compute on your context.

    • Seed
    • 16 employees
  3. 3
    Mirendil· San Francisco, California, United States

    Mirendil is an AI research lab building self-accelerating systems that turn compute into scientific and engineering breakthroughs.

    • Seed
    • 9 employees
    • Founded 2025
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  5. 4
    MindPortal· Greater London, England, United Kingdom

    MindPortal is a pioneering AI research company advancing human-AI interaction by enabling people to communicate with computers and AI assistants purely through thought. As an AI company, we focus exclusively on model development rather than hardware. Our models are designed to be general-purpose, adaptable across a wide range of applications.Our flagship development, MindSpeech, is the first supervised AI model to translate imagined speech into text, enabling direct thought-to-language communication. MindSpeech has earned endorsements from leading experts, including Neuralink's former technical strategy head and DARPA’s N3 program lead scientist. Our thought-to-language AI models have the potential for transformative applications in fields such as healthcare, education, and VR/AR and our work has been featured in major publications such as Forbes, The Times, The Telegraph, and Business Insider. MindPortal has over 11 patents filed in the field and is backed by prominent investors such as Y Combinator.

    • Seed
    • 5 employees
    • Founded 2019
  6. 5
    Arresto BioSciences· Palo Alto, California, United States

    Arresto BioSciences is a research company based out of 3183 Porter Drive, Palo Alto, CA, United States.

    • Series A
    • 5 employees
    • Founded 2007

Kleiner Perkins’s AI portfolio

The list above ranks Kleiner Perkins-backed AI companies by current headcount, drawn from public LinkedIn and Crunchbase records. 5 matching companies in Refolk’s index give you a quick read on where Kleiner Perkins has gone deepest in the AI space.

Kleiner Perkins’s AI bets tend to share a thesis. The engineers, ML researchers, and founders inside these companies are often building the same primitives - and they show up in AI talent pools across the next decade.

Refolk converts this list into a live search. Ask for “Kleiner Perkins AI companies hiring senior engineers” or “founders of Kleiner Perkins-backed AI companies” and Refolk returns a fresh ranked shortlist.

How this list is built

Refolk pulled AI companies whose disclosed Crunchbase investor list includes Kleiner Perkins, ranked them by current employee count, and kept those with at least 5 employees. The list refreshes monthly.

Last refreshed: Fri, 18 Sep 2026 07:55:22 GMT

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How is this ranking built?

The list draws on the public company graph - headcount and growth signals, funding history, and recency. The criteria chips at the top show exactly which filters produced it, and the methodology section explains the ranking.

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The underlying index updates continuously and this ranking is rebuilt monthly. Last refreshed: Fri, 18 Sep 2026 07:55:22 GMT. For a list built against the index as it stands today, sign up and run the search live.

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