As of 14 Oct 2026, Harmonic has raised $220M across 2 verified rounds on record; latest: $120 million Series C led by Ribbit Capital, announced 25 Nov 2025.
An advanced reasoning engine and API for developers, mathematicians, researchers, and the general public.
1 source
No source states a financing total or Harmonic's headquarters.
Published by hand (siliconangle.com): "Harmonic AI Inc., a startup using artificial intelligence for formal mathematical reasoning, announced today that it has raised $120 million in new funding on a $1.45 billion valuation.": biggest-rounds completeness (K): the row's own page states the round
1 source
Published by hand (harmonic.fun): "we’ve raised $100M in Series B funding to accelerate the development of Mathematical Superintelligence.": biggest-rounds completeness (K): the row's own page states the round
| Round | Amount | Announced | Lead | Buzz |
|---|---|---|---|---|
| Series C [ HISTORY ]: An earlier round, from the company's own announcement, found while researching the company. Checked like any round, but not new, so it stays out of the daily feed and alerts; a date range shows it. | $120M at $1.45 billion valuation | 2025-11-25 | Ribbit Capital | No recent discussion |
1 source [ VERIFIED ] read against 1 source No source states a financing total or Harmonic's headquarters. Published by hand (siliconangle.com): "Harmonic AI Inc., a startup using artificial intelligence for formal mathematical reasoning, announced today that it has raised $120 million in new funding on a $1.45 billion valuation.": biggest-rounds completeness (K): the row's own page states the round | ||||
| Series B [ HISTORY ]: An earlier round, from the company's own announcement, found while researching the company. Checked like any round, but not new, so it stays out of the daily feed and alerts; a date range shows it. | $100M | 2025-07-09 | Kleiner Perkins | No recent discussion |
1 source [ VERIFIED ] read against 1 source Published by hand (harmonic.fun): "we’ve raised $100M in Series B funding to accelerate the development of Mathematical Superintelligence.": biggest-rounds completeness (K): the row's own page states the round [ BUILT WITH ]·[ SEARCH ]found by Firecrawl search·[ SCRAPE ]1 page read: harmonic.fun·[ JSON ]round read into a schema, with the sentence that states it·[ VERIFY ]confirmedchecked against 1 source·[ BRANDING ]logo and colour from the homepage | ||||