Analysis

Nebulock Secures $25 Million for AI-Powered Contextual Security

June 27, 2026 08:05 · 12 min read
Nebulock Secures $25 Million for AI-Powered Contextual Security

Nebulock Raises $25 Million for AI-Native Contextual Security

Cybersecurity startup Nebulock has announced a $25 million Series A funding round, bringing the total raised by the company to over $33 million. The new investment round was led by FirstMark, with additional support from previous backers Bain Capital Ventures, Decibel, Step Function, and Zetta Venture Partners.

Boston, Massachusetts-based Nebulock emerged from stealth mode a year ago, focused on autonomous, vendor-agnostic threat hunting across endpoint, cloud, and identity. Since then, the startup has expanded its AI-powered solution to deliver proactive detection engineering and behavioral security analytics.

AI-Powered Security Platform

To help defenders understand behavior, the platform hunts for and correlates human and AI accounts, identities, and hosts, delivering detection rules to test, edit, and fine-tune. Nebulock turns enterprise context into a behavioral system of record, providing visibility into activities across endpoint, identity, cloud, network, and SaaS ecosystems, and surfacing seemingly unremarkable actions that point towards potential compromise.

The startup will use the new funding to expand its platform’s capabilities, deepen cross-telemetry correlation and behavioral context graph, and hire new talent across engineering and go-to-market teams.

“The attacker has become more agentic faster than defenders have become proactive. Breaches used to take months; now they take tokens. That’s why Nebulock was built to help security teams move beyond reactive-by-default workflows and toward context-rich, always-on protection that shows them what their stack can’t see,”

Nebulock founder and CEO Damien Lewke said.

Market Context

Nebulock's funding round is part of a larger trend of investment in AI-powered security solutions. The company's platform is designed to help security teams stay ahead of increasingly sophisticated threats, and its focus on contextual security is seen as a key differentiator in the market.

Nebulock's funding round is a significant development in the cybersecurity industry, and the company's AI-powered platform is seen as a key player in the market for contextual security solutions.

Future Plans

The startup plans to use the new funding to further develop its platform and expand its customer base. With its focus on AI-powered contextual security, Nebulock is well-positioned to help security teams stay ahead of increasingly sophisticated threats.

As the cybersecurity landscape continues to evolve, Nebulock's platform is seen as a key solution for security teams looking to stay ahead of threats. The company's funding round is a significant development in the industry, and its AI-powered platform is expected to play a major role in the market for contextual security solutions.

  1. Nebulock's platform provides visibility into activities across endpoint, identity, cloud, network, and SaaS ecosystems.
  2. The platform delivers detection rules to test, edit, and fine-tune.
  3. Nebulock turns enterprise context into a behavioral system of record.

Nebulock's funding round is a significant development in the cybersecurity industry, and the company's AI-powered platform is seen as a key player in the market for contextual security solutions. As the cybersecurity landscape continues to evolve, Nebulock's platform is expected to play a major role in helping security teams stay ahead of increasingly sophisticated threats.


Source: SecurityWeek

Source: SecurityWeek

Powered by ZeroBot

Protect your website from bots, scrapers, and automated threats.

Try ZeroBot Free