Startup positions itself as next wave of continuous security validation
Horizon3 raised $250M at a $2B valuation, signaling growing demand for real‑time security checks over yearly penetration tests.
Horizon3 announced today that it has closed a $250 million Series E round, boosting its total funding to $350 million and bringing its valuation to $2 billion.
The new capital will accelerate product development and expand sales efforts across the enterprise market.
In a public statement, the company said customers are moving from annual penetration tests to continuous, machine‑learning‑driven security validation.
Traditional penetration testing is often a once‑a‑year exercise; Horizon3’s platform delivers real‑time assessments that run across web, API, and cloud services.
The platform automatically scans for vulnerabilities, then applies machine‑learning models to prioritize risks and recommend mitigations.
Horizon3’s leadership explained that the shift to continuous testing is driven by the rise in sophisticated threats that can exploit gaps between scheduled tests.
The startup has already secured contracts with several Fortune 500 firms that require 24/7 security oversight.
With the new funding, Horizon3 plans to grow its engineering team, enhance the AI‑driven analytics layer, and expand into new verticals such as finance and healthcare.
Several prominent investors led the round, underscoring confidence in the market for continuous security solutions.
Overall, the investment signals that enterprises are willing to spend more on real‑time security validation to stay ahead of evolving threats.
Horizon3 announced today that it has closed a $250 million Series E round, boosting its total funding to $350 million and bringing its valuation to $2 billion.
The new capital will accelerate product development and expand sales efforts across the enterprise market.
In a public statement, the company said customers are moving from annual penetration tests to continuous, machine‑learning‑driven security validation.
Traditional penetration testing is often a once‑a‑year exercise; Horizon3’s platform delivers real‑time assessments that run across web, API, and cloud services.
The platform automatically scans for vulnerabilities, then applies machine‑learning models to prioritize risks and recommend mitigations.
Horizon3’s leadership explained that the shift to continuous testing is driven by the rise in sophisticated threats that can exploit gaps between scheduled tests.
The startup has already secured contracts with several Fortune 500 firms that require 24/7 security oversight.
With the new funding, Horizon3 plans to grow its engineering team, enhance the AI‑driven analytics layer, and expand into new verticals such as finance and healthcare.
Several prominent investors led the round, underscoring confidence in the market for continuous security solutions.
Overall, the investment signals that enterprises are willing to spend more on real‑time security validation to stay ahead of evolving threats.