Cyber threat protection firm Cylance announced on Wednesday that it has completed the initial closing of a $100 million Series D funding round.
The company’s flagship endpoint security product, CylancePROTECT, takes a mathematical and machine learning approach to identifying and containing zero day and advanced attacks.
The Irvine, California-based company says that additional funding will be used to expand sales, marketing and engineering programs.
Since launching, the Company claims more than 1,000 customers, and says it has experienced record growth with product billings and customer growth of 1089 percent and 785 percent respectively.
News of the massive cash injection comes less than a year after announcing that it had raised $42 million in a Series C round back in July 2015.
The Series D round was led by funds managed by Blackstone Tactical Opportunities and Insight Venture Partners and included addtitional investments by the company’s existing investors.
“We founded Cylance almost four years ago with a singular mission: protect those who cannot protect themselves, and empower those who can,” said Cylance CEO Stuart McClure. “Our goal of reinventing endpoint security by using machine learning to think like a cyber hacker has been achieved and we now must ensure that it is put in the hands of security leaders inside enterprises, organizations, governments and small businesses as quickly as possible.”
McClure previously served as Global CTO and General Manager at McAfee.
Previous investors in Cylance include Thomvest, DraperNexus, Fairhaven Capital, Khosla Ventures, KKR, Dell Ventures, CapitalOne Ventures and TenEleven Ventures.

For more than 10 years, Mike Lennon has been closely monitoring the threat landscape and analyzing trends in the National Security and enterprise cybersecurity space. In his role at SecurityWeek, he oversees the editorial direction of the publication and is the Director of several leading security industry conferences around the world.
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