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Cyber security firm Bit9 raises $38.25m, merges with Carbon Black

Bit9 Inc., a Waltham cybersecurity company, said Thursday that it has raised $38.25 million in new funding and merged with another security firm called Carbon Black.

Henceforth, the combined operation will be known as Bit9, and it will continue to be led by chief executive Patrick Morley. Financial terms of the Carbon Black transaction were not disclosed.

According to the companies, Bit9 and Carbon Black offer complementary services and as a combined entity, offer customers a more comprehensive range of services than rivals. As a result of the combination, Bit9 said it will be able deliver “an unmatched level of prevention, detection, and response against cyber threats.”


The additional funding was led by existing Bit9 investor Atlas Venture and included all other current Bit9 investors—.406 Ventures, Highland Capital Partners, Kleiner Perkins Caufield & Byers, and Sequoia Capital—and a direct investment by Blackstone, an investor in Carbon Black. Bit9 said in its release. With this round, Bit9 has raised a total of $120 million.

“Every enterprise endpoint and server is a defenseless blind spot for advanced threats,” Morley said in a statement. “Traditional defenses such as antivirus can’t detect or stop stealthy attacks orchestrated by malicious actors, or help companies respond to incidents, which has been painfully underlined by the recent high-profile intrusions into leading retailers. The combination of Bit9 and Carbon Black satisfies all of these needs. Because Carbon Black’s lightweight endpoint sensor can be rapidly deployed with no configuration, organizations can now have continuous surveillance of all of their computers. And they can stop advanced threats by using Bit9’s signature-less prevention technology, which can be customized to meet the needs of different users and systems.”

Chris Reidy can be reached at reidy@globe.com.