Onyx raises $113m in Series B funding led by Bessemer Venture Partners to enhance AI governance for enterprises.
Amount Raised
$113 Million
Round Type
Series B
Investors
Description
Onyx has secured a $113 million Series B round to help enterprises manage AI agents within their organizations. The funding will be used to expand their platform for preserving human oversight as AI plays a larger role in enterprise tasks. Onyx currently protects over 1.1 million agents and monitors more than 66 million AI sessions in real time. The company aims to support critical infrastructure sectors such as energy, healthcare, and financial services.
Quick answer
Onyx Security raised $113 Million in a Series B round, dated July 30, 2026. Investors: G Squared, FirstMark Capital, Quantumlight, Cyberstarts, TCV, Conviction, Vintage Investment Partners and Bessemer Venture Partners.
- How much did Onyx Security raise?
- Onyx Security raised $113 Million in a Series B round on July 30, 2026.
- Who invested in Onyx Security?
- G Squared, FirstMark Capital, Quantumlight, Cyberstarts, TCV, Conviction, Vintage Investment Partners and Bessemer Venture Partners are named as investors in this round.
Source: Fundz verified event record.
Who else raised in Cyber Security and Artificial Intelligence around the same time
Companies in the same sectors as Onyx Security that raised within 45 days of this round, from Fundz verified event records.
- LeoTrace raised $2M (Pre-Seed) on September 11, 2026.
- Bynario raised $2.4M (Pre-Seed) on September 10, 2026.
- HelmGuard raised $7.3M (Seed) on September 9, 2026.
- Cymphony raised $25M (Series A) on September 9, 2026.
- Aslan Protects raised $21M (Seed) on September 2, 2026.
- Lasso Security raised $30M on September 2, 2026.
Who to call at Onyx Security, and when
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- An alert the day Onyx Security raises, hires an executive or expands, scored against what you sell
- The decision-makers there, with verified emails
- Who you already know at Onyx Security, from your own LinkedIn network
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Funding Insights
What this usually meansOnyx Security raised. Fundz records a round at a median of 3.6 minutes from the SEC filing, with the decision-maker attached.
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