Cyber security start-up draws $100m in BlackRock-led fundraising

Illumio, a cyber security start-up with personal backing from successful technology founders, has raised over $100m in a fundraising round led by BlackRock.

The investment by the world's largest fund manager follows funding from Marc Benioff, Salesforce founder and chief executive, Jerry Yang, Yahoo's co-founder and John Thompson, the Microsoft chairman, who has joined the start-up's board.

Accel Partners and existing investors including Andreessen Horowitz also participated in this latest round, which comes as venture capital pours into the sector enticed by the prospect of companies increasing their cyber security budgets after high profile attacks on their peers in industries from retail to healthcare.

Andrew Rubin, co-founder and chief executive, said Illumio - which sells defences for data centres - had originally underestimated the opportunity for the company. He said customers were now asking him to expand the product and Illumio was looking to start selling outside of the United States.

"Morgan Stanley participating in the launch was a big win for the company because banks typically don't talk about their involvement. It went down tremendously with the financial services community," he said.

Cyber security companies, from start-ups with only a handful of customers to listed corporations such as Symantec, will flock to San Francisco next week to show off their wares at the annual RSA conference.

A new generation of companies has developed new technologies in an effort to defend their operations against the rapidly changing and increasingly sophisticated cyber threat, prompting many venture capitalists to predict a boom in cyber security mergers as the little fish with good technology get snapped up by larger competitors with significant sales teams.

Illumio's fundraising round is one of the largest in the cyber security industry so far this year. Last month, Tanium, a cyber security provider which includes half of the top 10 global banks among its customers, raised a $52m in a funding round led by Andreessen Horowitz, making it one of the venture capital firm's largest ever investments. Atlanta-based Ionic Security raised $40m at the start of the year, more than doubling its funding less than a year after its last fundraising.

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