Tom Bogan

Venture Partner


Current Companies


Past Investments

Mazu Networks (Acquired by Riverbed in 2009), OATSystems (Acquired by Checkpoint Systems in 2008), Ounce Labs (Private), Rally Software (IPO 2013), iConclude (Acquired by Opsware in 2007)


Tom Bogan is a venture partner with Greylock Partners, a venture capital firm and Chairman of Citrix Systems (CTXS), a leading enterprise software infrastructure company.  Bogan joined Greylock in 2004 and is focused on enterprise software. He led the firm’s investments in Apptio, ClearForest (sold to Reuters), iConclude (sold to Opsware), Mazu Networks (sold to Riverbed), Oat Systems (sold to Checkpoint), Ounce Labs (sold to IBM), Rally Software and Troux Technologies.
Before Greylock, Tom was President of Rational Software, an S&P 500 enterprise software company from 2000 until its sale to IBM in 2003. He previously had served Rational as its COO and General Manager of its testing business from 1996 to 2000. Prior to Rational, Tom was President and CEO of two early stage technology companies that focused on networking and peripheral products – Pacific Data Products (1993 to 1996) and Avatar Technologies (1987 to 1993).  Before Avatar, his background was in finance and he served as a financial officer in public and private companies as well as positions in public accounting.
Tom currently serves on the boards of Citrix Systems (CTXS), Apptio, Rally Software, and Troux Technologies.  Tom graduated from Stonehill College where he currently serves as a Trustee.