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Lightspeed Venture Partners portfolio AI companies

Multi-stage venture firm with deep practices in enterprise, consumer, and fintech. Filtered to companies in AI.

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Built from a search like: “Lightspeed Venture Partners-backed AI companies”

Ranked by current headcount across Lightspeed Venture Partners-backed AI companies. Refreshed monthly.

  1. 1
    Anthropic

    We're an AI research company that builds reliable, interpretable, and steerable AI systems. Our first product is Claude, an AI assistant for tasks at any scale.Our research interests span multiple areas including natural language, human feedback, scaling laws, reinforcement learning, code generation, and interpretability.

    • Series H
    • 6k employees
    • Founded 2021
  2. 2
    ElevenLabs· London, England, United Kingdom

    ElevenLabs is transforming human-technology interaction with AI research and products.ElevenAgents enables businesses to deliver seamless and intelligent customer experiences, with the integrations, testing, monitoring, and reliability necessary to deploy voice and chat agents at scale.ElevenCreative empowers creators and marketers to generate and edit speech, music, image, and video across 70+ languages.ElevenAPI gives developers access to our leading AI audio foundational models.These platforms are powered by our leading AI research. We developed the first human-like AI voice model, then expanded into dubbing, transcription, music, sound effects, and speech-to-speech.We serve millions of users and thousands of businesses from the fastest growing startups to the largest enterprises like Harvey, Deutsche Telekom and Meta.

    • Secondary
    • 1.3k employees
    • Founded 2022
  3. 3
    AI4Bhārat· Chennai, Tamil Nadu, India

    Artificial-Intelligence-For-Bhārat : The focus of AI4Bharat, an initiative of IIT Madras, is on building open-source language AI for Indian languages, including datasets, models, and applications.

    • Seed
    • 200 employees
    • Founded 2019
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  5. 4
    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
  6. 5
    Radicle Science· San Diego, California, United States

    Radicle Science enables health and wellness companies to generate real-world, clinical-grade evidence without the legacy costs. Through large-scale decentralized trials and AI-driven analytics, we transform how evidence is generated, moving from slow and costly studies to scalable validation that accelerates innovation, enables stronger claims, and drives market adoption. We are your partner in transparency, delivering evidence at the speed of modern innovation. This is Proof-as-a-Service.

    • Seed
    • 47 employees
    • Founded 2020
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Lightspeed Venture Partners’s AI portfolio

The list above ranks Lightspeed Venture Partners-backed AI companies by current headcount, drawn from public LinkedIn and Crunchbase records. 8 matching companies in Refolk’s index give you a quick read on where Lightspeed Venture Partners has gone deepest in the AI space.

Lightspeed Venture Partners’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.

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How this list is built

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

Last refreshed: Fri, 18 Sep 2026 07:50:04 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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