# Onyx Security funding: rounds and investors > Onyx Security has raised $153M across 2 rounds since 2026. Investors include Bessemer Venture Partners, FirstMark and TCV. Every round with its source. Source: https://millionrounds.com/company/onyx-security (Millionrounds; every figure on the page links to its filing or article) [Series B startup](https://millionrounds.com/companies) # Who invested in *Onyx Security* 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. AI Cybersecurity Raised 3 months ago Follow Onyx Security and see its new rounds in your feed. [Start following](https://millionrounds.com/login?join=1&why=follow&next=%2Fcompany%2Fonyx-security) Funding summary Updated 5 Nov 2026 **$153M** raised across 2 rounds since 2026, from 2 sources **$40M** Round **$113M** Series B - **Latest round:** Series B, $113M Jul 2026 - **Led by:** Bessemer Venture Partners - **Step-up i:** 2.8× - **Investors:** 8 (1 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 **$40M** Round **$113M** Series B - **First round:** Round, $40M - **Biggest round:** $113M - **Between rounds:** 5 months ## The rounds - **Jul 2026** Series B **$113M** *8 new* [Bessemer Venture Partners](https://millionrounds.com/fund/bessemer-venture-partners) Lead [FirstMark](https://millionrounds.com/fund/firstmark) [TCV](https://millionrounds.com/fund/tcv) [Conviction](https://millionrounds.com/fund/conviction) [G Squared](https://millionrounds.com/fund/g-squared) [Vintage](https://millionrounds.com/fund/vintage) [QuantumLight](https://millionrounds.com/fund/quantumlight) Cyberstarts Reported by Ventureburn - **Mar 2026** Round **$40M** No investor was named in the report. Reported by Ventureburn ## 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. **Round** 2026 **Series B** 2026 [Bessemer Venture Partners](https://millionrounds.com/fund/bessemer-venture-partners) L [FirstMark](https://millionrounds.com/fund/firstmark) [TCV](https://millionrounds.com/fund/tcv) [Conviction](https://millionrounds.com/fund/conviction) [G Squared](https://millionrounds.com/fund/g-squared) [Vintage](https://millionrounds.com/fund/vintage) [QuantumLight](https://millionrounds.com/fund/quantumlight) Cyberstarts ## Everyone who backed them [Bessemer Venture Partners](https://millionrounds.com/fund/bessemer-venture-partners) VC firm **1** round, led 1 [FirstMark](https://millionrounds.com/fund/firstmark) VC firm **1** round [TCV](https://millionrounds.com/fund/tcv) Private equity **1** round [Conviction](https://millionrounds.com/fund/conviction) VC firm **1** round [G Squared](https://millionrounds.com/fund/g-squared) VC firm **1** round [Vintage](https://millionrounds.com/fund/vintage) VC firm **1** round [QuantumLight](https://millionrounds.com/fund/quantumlight) VC firm **1** round Cyberstarts no record of our own yet **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=onyx-security). ## Quick answers about Onyx Security ### Who invested in Onyx Security? Onyx Security's investors include Bessemer Venture Partners, FirstMark, TCV, Conviction and G Squared, and 3 more on record. Bessemer Venture Partners led its latest round. ### How much has Onyx Security raised? Onyx Security has raised $153M across 2 rounds since 2026. ### When did Onyx Security last raise? Onyx Security's most recent round was a Series B of $113M in Jul 2026, led by Bessemer Venture Partners. ### What was Onyx Security's biggest round? Its most recent round, $113M in Jul 2026, is also its largest on record. ### Who backed Onyx Security first? Onyx Security's first round on record, in Jul 2026, was backed by Bessemer Venture Partners, FirstMark and TCV and 5 others. ### What stage is Onyx Security at? Onyx Security's latest named round is a Series B, in Jul 2026. ### Who led Onyx Security's rounds? Bessemer Venture Partners led the Series B in 2026. ## Companies like Onyx Security In the same sector, and raised in the last eighteen months. [**Nirva** $25M · Oct 2026](https://millionrounds.com/company/nirva)[**Lovi** $15M · Oct 2026](https://millionrounds.com/company/lovi)[**Palma.ai** $1.8M · Sept 2026](https://millionrounds.com/company/palma-ai)[**Hang Ten Systems** $53M · Sept 2026](https://millionrounds.com/company/hang-ten-systems)[**OriginalVoices** $1.3M · Sept 2026](https://millionrounds.com/company/originalvoices)[**Positron AI** $875M · Sept 2026](https://millionrounds.com/company/positron-ai) ## Find investors like these Search every investor by what they have actually funded, then narrow to your stage and market. Free. Open the investor searchOr these rounds in the app