a16z’s AI Portfolio: Startups Backed by Andreessen Horowitz (2025 Tracker)
Andreessen Horowitz (a16z) is one of the most aggressive backers in the AI space. See which AI startups they've funded - and the verticals they’re doubling down on.
Last updated: [April, 2025]
This live tracker covers the top artificial intelligence startups funded by a16z in 2025. From chips to copilots, foundation models to open-source tooling, Andreessen Horowitz is everywhere AI is heating up.
🧠 About a16z & Their AI Thesis
From foundational bets like OpenAI (way back when) to leading late-stage rounds for next-gen platforms, the firm has made AI central to its strategy.
Marc Andreessen’s famous “Software is eating the world” now has a sequel: “AI is eating software.”
| Category | Notable Startups | Trend Insight |
|---|---|---|
| Copilots (Vertical AI) | Cursor, Harvey | a16z is betting on AI tools tailored to experts |
| AI Hardware & Infra | Groq | Hardware is hot again - especially in AI |
| Voice & Interface Layer | ElevenLabs | Natural language interfaces beyond chat |
| Healthcare AI | Hippocratic | Regulated, high-trust AI = new frontier |
Know a startup we missed? Email us to get it added.
Top a16z-Backed AI Startups (2025)
1. Cursor
- Round: $625M (Feb 2025)
- Valuation: $9.6B
- Sector: AI Copilot for Developers
- What They Do: A natural language interface for writing, refactoring, and debugging code
- Why It Matters: a16z joined Thrive as a lead. Cursor is becoming the go-to dev tool for AI-powered coding, making it one of the highest-valued vertical copilots in the space.
2. Groq
- Round: $640M Series D (Aug 2024)
- Valuation: $2.8B
- Sector: AI Chips / Hardware
- What They Do: Building custom AI chips and hardware optimized for LLM inference
- Why It Matters: Co-led by a16z and BlackRock. Groq is one of the few companies tackling the GPU bottleneck head-on with next-gen silicon.
3. ElevenLabs
- Round: $180M (2025)
- Sector: Voice AI / GenAI
- What They Do: AI-powered speech synthesis and voice cloning
- Why It Matters: a16z co-led this round. Voice is fast becoming a key interface, and ElevenLabs is leading the charge with creator-ready tools and enterprise-grade accuracy.
4. Hippocratic AI
- Round: $141M Series B (2025)
- Sector: Healthcare AI Agents
- What They Do: Safe, non-diagnostic AI agents for patient-facing use cases
- Why It Matters: a16z is a participating investor. Their involvement in Hippocratic highlights growing conviction in high-trust, regulated AI applications — especially in healthcare.
5. Harvey
- Round: $300M Series D (2025)
- Sector: Legal AI / Enterprise
- What They Do: AI co-pilot for lawyers
- Why It Matters: a16z joined other top-tier funds like Sequoia and Kleiner Perkins. This signals a16z’s belief in vertical copilots — especially in high-stakes industries like law.
a16z’s AI Strategy Signals
- Double down on verticals: a16z is all-in on expert-facing AI — copilots for devs, doctors, and lawyers.
- Infra + interface: They back both the stack (Groq) and the user-facing layer (ElevenLabs).
- No strangers to scale: These aren’t seed checks. a16z is co-leading $100M+ rounds — and betting big on category leaders.
- “Full-stack” AI thesis: Their portfolio touches compute, apps, voice, and regulated industries — a multi-layered strategy.
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