Tenable Network Security Raises $250 Million

Tenable Network Security, makers of vulnerability scanners and software solutions that help find network security gaps, announced on Tuesday that it has raised $250 million in a massive Series B funding round.

Led by Insight Venture Partners and Accel Partners, the cash injection brings the total raised by the company to $300 million. Accel invested $50 million Series A Round back in September 2012.

Founded in 2002, Tenable’s flagship products include SecurityCenter Continuous View, which provides an integrated view of network health, and Nessus, software used for detecting and assessing network data.

The Columbia, Maryland-based company claims more than one million users and nearly 20,000 customers around the world that use its products to monitor enterprise networks for vulnerabilities and threats.

Customers include Deloitte, Visa, BMW, Adidas, and the U.S. Department of Defense.

The company added more than 200 new employees in 2015 and said billings grew by over 50% last year, with a current run rate exceeding $100 million.

With the investment, the company said it would continue to invest in international expansion with immediate plans to expand its efforts into 10 more countries including China, Mexico, Ireland, Sweden, United Arab Emirates and India.