About
Tom Gillis is CEO of Bracket Computing, a company he founded in December 2011. Gillis started Bracket with a vision to re-imagine enterprise computing. Before starting Bracket, Gillis was VP/GM of the Security Technology Group at Cisco Systems. This Technology Group included the business units responsible for Cisco's entire Network and Content Security product portfolio, including firewalls, IPS, VPN, and email security and web security gateways. Prior to Cisco, Tom was VP of Marketing and part if the founding team of IronPort Systems which was acquired by Cisco in 2007. Before that, he held the position of VP/GM at iBEAM Broadcasting, an Internet start up that wentpublic on NASDAQ. He has also worked at Silicon Graphics, the Boston Consulting Group, and Raytheon Corporation. Gillis received a BSEE from Tufts, an MSEEfrom Northwestern, and an MBA from Harvard.
Position in the VCSift Database
- • 26 investors at Cisco are tracked.
- • 1 investors hold the Senior Vice President / GM Security Business Group role in VCSift. Tom Gillis is one of them.
- • 161 investors are based in Los Altos, California, United States.
Data sourced from 410,343 investor profiles. Updated July 2026.
Investment Focus
- Location
- Los Altos, US
Contact Information
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