Online cybersecurity career development startup Cybrary Inc. today said it has raised $15 million in new funding to accelerate the growth of the company’s online workforce development platform.

The Series B round was led by BuildGroup and included Arthur Ventures and Gula Tech Adventures. As part of the deal, Gray Hall, managing director of BuildGroup, and Ron Gula, president of Gula Tech Adventures, are joining Cybrary’s board.

Founded in 2015, Cybrary offers a free, crowdsourced cybersecurity and information technology learning platform that has been designed to deliver an ecosystem of industry professionals, companies, content and technologies to assist in learning opportunities.

Claiming it’s the world’s largest cybersecurity learning and certification preparation platform, Cybrary said it has more than 3 million users with users from 96% of the Fortune 1000 companies developing their careers on the platform. The company said it averages 2,000 new members signing up each day with revenue up ninefold in the last two years.

The company makes money by providing team services to enterprises as well as formal security certification. Clients include Cognizant Technology Solutions Corp., General Electric Co., Symantec Inc., Booz Allen Hamilton Inc., Nuance Communications Inc. and T-Mobile US Inc. Cybrary offers security certification for CompTIA, ISC, ISACA, EC-Council, AWS, VMware, Microsoft, Oracle and Cisco systems.

“Cybersecurity is the world’s fastest-moving industry and the skills required are equally hard to keep up with,” Ralph Sita, co-founder of Cybrary, said in a statement. “Therefore, with this latest investment, Cybrary will continue to invest in what has become the world’s fastest-moving catalog.”

Including the new funding, Cybrary has raised $23 million to date. Previous investors include Blu Venture Investors, Inner Capital Group, Baltimore Angles, Dingman Center for Entrepreneurship and TDF Ventures.

Image: Cybrary