Active Investments

Prior Investments

acquired by General Dynamics

acquired by IBM

acquired by EMC

Nasdaq: SNCR

acquired by Netegrity

acquired by Telco Systems

acquired by NetIQ

acquired by Broadridge

Geoffrey S. Oblak, General Partner


Geoff joined Ascent in 1998, in the midst of a technology bubble, because he was attracted to the firm’s disciplined approach to venture investing and focus on enterprise technology. Since becoming a partner in 2001, Geoff has led Ascent investments in the security information and event monitoring (SIEM) market (Network Intelligence); database activity monitoring (Guardium); and transaction automation (Synchronoss). Network Intelligence and Guardium became leaders in their markets prior to their acquisitions by EMC and IBM, respectively. Synchronoss (Nasdaq: SNCR) remains a dominant publicly held company with a market cap that exceeds $1 Billion. Geoff currently works with several active portfolio companies that are disrupting traditional enterprise IT markets, especially within information security and data analytics.

Prior to Ascent, Geoff served as an Investment Analyst in the Boston office of Norwest Venture Partners, where he researched emerging technology markets and worked on successful investments such as Quatritek Systems (acquired by Lucent) and Nashoba Networks (acquired by Cisco). While at Norwest, Geoff realized how much he enjoyed the pace and challenge of working with technology startups. He previously worked in the Audit/Business Advisory division of Arthur Andersen, LLP, where he was concurrently sponsored by the firm in an accelerated MBA program.


Geoff received a BA in Economics from Hamilton College, and studied at the London School of Economics, where he enhanced his passion for travel and intellectual curiosity. He also received an MBA from Boston University.

Everything Else

Geoff holds a CFA Charter, and is a member of the CFA Institute and the Boston Security Analysts Society. He is also a former CPA.

Since 2008, Geoff has served as an independent consultant to the Department of Defense Venture Catalyst Initiative (DeVenCI), advising the DOD on companies and emerging technologies -- in categories such as virtualization, security, and data analytics – that overlay with Ascent’s investment activity and address critical national security issues.

Geoff lives in Sudbury, has three children, including twins – and they all play hockey, which Geoff enjoys coaching (except for 6 a.m. weekend practices). He also loves to travel, read, and ski and volunteers his time working with numerous entrepreneurial advisory groups.