The facts
Harmonic at a glance.
Read Oct 20, 2026. Valuations and amounts are copied as each source states them; a figure that is only reported (talks, or people familiar with the deal) is labeled as reported.
- Kind of company
- Science, materials and mathAI for physics, chemistry, new materials and mathematics, often with robotic labs.
- Based in
- Palo Alto, United States
- Founded
- 2023Reuters (via Yahoo Finance), Krystal Hu, Nov 26, 2025
- Last closed-round valuation
- $1.45B$1.45 billion (Axios, Jan 15, 2026)
- What it has shipped
- Has a product
Founders
- Vlad Tenev: co-founder; Robinhood CEO (TechCrunch, Jul 28, 2025)
- Tudor Achim: CEO and co-founder (TechCrunch, Jul 28, 2025)
Nvidia joined Harmonic's $120M Series C at a $1.45B valuation. Jan 15, 2026
Axios, Jan 15, 2026
What it has built
Shipped, or not yet.
“Has a product” is what our search found: something the public can use or buy, a model or API, research only, or nothing public.
3 rounds
Funding, as reported.
Every round we found, with the amount, valuation and investors as the source states them.
| When | Round | Amount | Valuation | Investors named | Source |
|---|---|---|---|---|---|
| Jul 28, 2025 | Series B | $100 million | $875 million | Kleiner Perkins (lead) | TechCrunch |
| Nov 25, 2025 | Series C | $120 million | $1.45 billion | Ribbit Capital (lead), Sequoia Capital, Index Ventures, Kleiner Perkins, Emerson Collective (new) | Harmonic (company) |
| Jan 15, 2026 | Series C (Nvidia joins) | part of the $120 million Series C | $1.45 billion | Nvidia (new) | Axios |
Our note
Worth knowing.
Our note: Harmonic says Aristotle produced formally verified (Lean 4) solutions to five of six 2025 IMO problems, which it calls gold medal-level; this is the company's claim and no third-party evaluation was found. Reuters puts total raised at $295 million. The newest item on Harmonic's news page is dated 2026-02-11 (a $300,000 donation to Lean FRO).
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