# Oratomic funding: rounds and investors > Oratomic has raised $775M across 2 rounds since 2026. Investors include Khosla Ventures, Spark Capital and ARCH Venture Partners. Every round with its source. Source: https://millionrounds.com/company/oratomic (Millionrounds; every figure on the page links to its filing or article) United States · [Series B startup](https://millionrounds.com/companies) # Who invested in *Oratomic* 2 rounds we have observed, with the 8 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it. Deeptech Quantum Computing Raised 1 month ago Follow Oratomic and see its new rounds in your feed. [Start following](https://millionrounds.com/login?join=1&why=follow&next=%2Fcompany%2Foratomic) Funding summary Updated 5 Nov 2026 **$775M** raised across 2 rounds since 2026, from 3 sources **$300M** Series A **$475M** Series B - **Latest round:** Series B, $475M Oct 2026 - **Led by:** General Catalyst and Khosla Ventures and 4 more - **Step-up i:** 1.6× - **Investors:** 8 (6 led) See who backed them ## The funding story Each circle is a round, placed by date and sized by amount. The line above is the running total. 2027 **$300M** Series A **$475M** Series B - **First round:** Series A, $300M - **Biggest round:** $475M - **Between rounds:** 3 months ## The rounds - **Oct 2026** Series B **$475M** *6 returning* [General Catalyst](https://millionrounds.com/fund/general-catalyst) Lead [Khosla Ventures](https://millionrounds.com/fund/khosla-ventures) Lead [Index Ventures](https://millionrounds.com/fund/index-ventures) Lead [Spark Capital](https://millionrounds.com/fund/spark-capital) Lead [ARCH Venture Partners](https://millionrounds.com/fund/arch-venture-partners) Lead [Bezos Expeditions](https://millionrounds.com/fund/bezos-expeditions) Lead Reported by Silicon Angle and 1 other - **Jul 2026** Series A **$300M** *8 new* [Khosla Ventures](https://millionrounds.com/fund/khosla-ventures) Lead [Spark Capital](https://millionrounds.com/fund/spark-capital) Lead [ARCH Venture Partners](https://millionrounds.com/fund/arch-venture-partners) Lead [General Catalyst](https://millionrounds.com/fund/general-catalyst) [Index Ventures](https://millionrounds.com/fund/index-ventures) [Lowercarbon Capital](https://millionrounds.com/fund/lowercarbon-capital) [Bezos Expeditions](https://millionrounds.com/fund/bezos-expeditions) [Bain Capital](https://millionrounds.com/fund/bain-capital) Reported by TechCrunch ## Who was in which round The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led. **Series A** 2026 **Series B** 2026 [Khosla Ventures](https://millionrounds.com/fund/khosla-ventures) L L [Spark Capital](https://millionrounds.com/fund/spark-capital) L L [ARCH Venture Partners](https://millionrounds.com/fund/arch-venture-partners) L L [General Catalyst](https://millionrounds.com/fund/general-catalyst) L [Index Ventures](https://millionrounds.com/fund/index-ventures) L [Bezos Expeditions](https://millionrounds.com/fund/bezos-expeditions) L [Lowercarbon Capital](https://millionrounds.com/fund/lowercarbon-capital) [Bain Capital](https://millionrounds.com/fund/bain-capital) ## Everyone who backed them [Khosla Ventures](https://millionrounds.com/fund/khosla-ventures) VC firm **2** rounds, led 2 [Spark Capital](https://millionrounds.com/fund/spark-capital) VC firm **2** rounds, led 2 [ARCH Venture Partners](https://millionrounds.com/fund/arch-venture-partners) VC firm **2** rounds, led 2 [General Catalyst](https://millionrounds.com/fund/general-catalyst) VC firm **2** rounds, led 1 [Index Ventures](https://millionrounds.com/fund/index-ventures) VC firm **2** rounds, led 1 [Bezos Expeditions](https://millionrounds.com/fund/bezos-expeditions) Family office **2** rounds, led 1 [Lowercarbon Capital](https://millionrounds.com/fund/lowercarbon-capital) VC firm **1** round [Bain Capital](https://millionrounds.com/fund/bain-capital) Private equity **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=oratomic). ## Also claim to have backed them These 3 firms list Oratomic as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above. [Todd Dagres](https://millionrounds.com/fund/todd-dagres) VC firm Per its own site [Brightwing Capital](https://millionrounds.com/fund/brightwing-capital) VC firm Per its own site [Genius Ventures](https://millionrounds.com/fund/genius-ventures) VC firm Per its own site ## Quick answers about Oratomic ### Who invested in Oratomic? Oratomic's investors include Khosla Ventures, Spark Capital, ARCH Venture Partners, General Catalyst and Index Ventures, and 3 more on record. General Catalyst led its latest round. ### How much has Oratomic raised? Oratomic has raised $775M across 2 rounds since 2026. ### When did Oratomic last raise? Oratomic's most recent round was a Series B of $475M in Oct 2026, led by General Catalyst. ### What was Oratomic's biggest round? Its most recent round, $475M in Oct 2026, is also its largest on record. ### Who backed Oratomic first? Oratomic's first round on record, in Jul 2026, was backed by Khosla Ventures, Spark Capital and ARCH Venture Partners and 5 others. ### What stage is Oratomic at? Oratomic's latest named round is a Series B, in Oct 2026. ### Where is Oratomic based? Oratomic is based in the United States. ### Who led Oratomic's rounds? Khosla Ventures led the Series A in 2026; General Catalyst led the Series B in 2026. ## Companies like Oratomic In the same sector, and raised in the last eighteen months. 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