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Onyx Security raises $113M in Series B funding led by Bessemer Venture Partners. The funding will support their advanced AI control solutions, following a fourfold revenue increase since launch.

PRIVATEJul 29, 2026•about 9 hours ago

Amount Raised

$113 Million

Round Type

Series B

Artificial IntelligenceMachine Learning

Investors

G SquaredQuantum LightVintageFirst MarkConvictionTcvCyberstartsBessemer Venture Partners

Description

Onyx Security, the AI control company, announced a $113 million Series B funding round led by Bessemer Venture Partners. The round included participation from several investors such as Cyberstarts, TCV, and FirstMark. Since launching four months ago, the company has quadrupled its revenue. This funding will further enhance their AI control solutions.

Company Information

Company

Onyx Security

About

Onyx Security is building a secure AI control plane to help enterprises manage and govern AI agents effectively. Their platform provides visibility and control over autonomous AI agents to prevent operational risks associated with reasoning errors and security breaches. Onyx aims to enable safe and rapid adoption of AI agents across various departments within organizations. The company utilizes proprietary AI models to oversee and guide the actions of AI agents in real time.

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Funding Insights

Based on industry data
Timeline to next round
Series B companies typically work for 15-20 months before raising new capital
Growth expectations
Series B companies are expected to scale rapidly and expand market reach
VC-backed spending patterns
VC-backed companies spend 89% more on sales and 100% more on marketing than bootstrapped peers
Tech investment trends
83% of B2B companies plan digital investments, with 79% prioritizing customer experience tech

Fundz is a real-time business intelligence platform powered by agentic AI that proactively delivers personalized daily signals — including funding rounds, executive changes, M&A activity, 13F institutional filings, SEC 8-K events, investor activity, and website modifications — based on each user's watchlist and ICP. A trusted data source at firms such as BlackRock, Oracle, Kleiner Perkins, LinkedIn, HubSpot, and Cloudflare, Fundz democratizes the institutional-grade intelligence that previously required a PitchBook or Bloomberg terminal. Features include FundzWatch™ for automated website change detection, Daily Briefing for AI-powered daily briefings, and unified cross-signal alerts across 200,000+ companies. Developers and data teams can access these signals programmatically via the Fundz Funding Data API, with transparent published pricing.

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