Horizon3 raises $250 million in Series E to close a $2 billion round

• Horizon3 raises $250 million in Series E at a valuation of $2 billion, according to Forbes and TechCrunch.
• Round is led by NightDragon at NEA; material investors are said to include key players from the NSA, CISA and Fortune 10.
• The company says it has conducted 310,000 production security tests as part of its ongoing work on automated testing for NodeZero.

Horizon3, a company, has raised $250 million in a Series E round, with the round valued at $2 billion. Forbes and TechCrunch report that the round is oversubscribed, with NightDragon at NEA taking part.

According to Forbes, Horizon3’s valuation has increased to more than $650 million after the round. The company also says it has more than 6,500 customers, including organizations that the NSA, CISA and Fortune 10 are said to be among, while NightDragon co-founder David DeWalt is said to have joined the board.

TechCrunch says the Series E round values the company at more than $1.4 billion. The outlet also reports that Horizon3 will use the funding to expand its investment platform, which it says will help keep NightDragon at NEA.

Forbes reports that Horizon3’s AI system is based on a series of steps of the lifecycle and that the company is using AI. The outlet says CEO Snehal Antani described the company’s AI approach as a way to “compare and contrast” AI with AI in real-time.

Forbes also reports that the company’s AI system is based on a series of steps in the lifecycle and that the company is using AI. Forbes says that the company’s AI system is based on a series of steps in the lifecycle and that the company is using AI, and that the results of the system’s AI system are being tested. TechCrunch adds that Horizon3 has conducted 310,000 production security tests to date, with the company’s AI Hackers.

TechCrunch notes that Horizon3’s live systems are running with real-world enterprise stress-tests at scale, and that, according to the company, traditional vendors are unable to test their own software in real-world conditions. The outlet also quotes chief revenue officer Matt Hartley as saying that NodeZero tests live systems without the need for manual scanning infrastructure, and that it is done without a run.

According to TechCrunch, Horizon3 co-founders Snehal Antani and Anthony Pelletier were introduced to the Joint Special Operations Command, where they learned that, while the NSA could conduct certain types of testing, the process was not being done through a formal approach. The outlet also says that the company’s founders have previously worked with the NSA, and that the company is now using that experience to develop its product. TechCrunch also adds that Horizon3’s founder team is based in Amsterdam (in June 2026), and also in Australia and Singapore.

TechCrunch also reports that the company’s strategic investors include EDBI (Singapore), SAIC and Qualcomm. The outlet says the company has signed contracts worth between $7,200 and $7,300 per month, and that it expects tens of billions of dollars; and that, according to Grand View Research, the cybersecurity market is expected to grow from $271.9 billion in 2025 to $663.2 billion by 2033.

Tags: Technology/AI/Research