Onyx Security

Onyx Security accelerates enterprise AI adoption, securely.

AI agents Cybersecurity Developer tools and cloud

Latest funding

$113M Series B+ · July 29, 2026

Led by Bessemer Venture Partners · Source: onyx.security

Funding history ↓

Website: onyx.security.

X: @Onyx_Security · 61 followers.

LinkedIn: onyx-sec.

Categories: AI agents Cybersecurity Developer tools and cloud.

Sectors: Artificial Intelligence (AI), Cyber Security, Information Technology, Software.

Stage: Series B+.

Based in: New York, United States.

Founded: 2024.

Last round: Jul 29, 2026 · 109 days ago.

Headcount: 101–250 employees.

On Recent Funding since: Sep 29, 2026.

Signals

X account@Onyx_Security · created May 28, 2026 (6 months old) · 61 followers

Website registeredJun 10, 2024 (2 years old)

About Onyx Security

The company’s secure AI control plane offers a single platform to serve security, governance, and infrastructure teams as they oversee how AI agents are used, ensure they are secure and compliant, and measure their effectiveness. Powered by its proprietary models and agentic technology, Onyx is already trusted by leading Fortune 500 companies.

TIMELINE · MONEY RAISED

Onyx Security | 779 days from website to first raise on record

@Onyx_Security·Raised $113M in 1 sourced round·2 signals before the first raise

Money raised, round by round (amounts linked to their source). Pins are dated signals; hover the icons for dates.

Funding rounds

Date	Round	Amount	Lead	Source
Jul 29, 2026	Series B+	$113M	BBessemer Venture Partners	onyx.security

Timeline

May 28, 2026
X account created
June 10, 2024
Website created

Founders and team

MB
Maxim Bar Kogan CEO & Co-Founder

LinkedIn · source: onyx.security
GE
Gil Elbaz Chief AI Officer & Co-Founder

LinkedIn · source: onyx.security

Investors

Companies like Onyx Security

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LLima CharlieSeries A · Feb 2024
CCoreStack$50M Series B+ · Oct 2025
DDensity$130M Series B+ · Nov 2021
IIntrow$3M · Nov 2025

Other companies backed by Bessemer Venture Partners

DDreeze$33M Seed · Nov 2026
TTrajectory$45M Series A · Nov 2026
SServal$150M Series B+ · Oct 2026
UUpwind$400M Series B+ · Oct 2026
BBedrock Robotics$600M Series B+ · Oct 2026
CChapter Home$6.65M · Oct 2026

Bessemer Venture Partners portfolio →

Sources and API

Every amount links to the page it came from. * Estimated from an accelerator's published standard deal, not a company-specific disclosure. How Recent Funding sources and verifies funding data. The same data as JSON: /api/v1/companies/onyx-security (get a free API key).