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Security

Since the firm’s founding over 20 years ago, we have invested in some of the most innovative and significant technology companies of our time. Sigma knows what it takes to help entrepreneurs turn creative ideas into sustainable businesses.

 
Applied Identity, Inc.
Applied Identity develops enterprise-scalable, identity-based solutions for securing internal networks. Applied Identity Identiforce appliances help Fortune 1000 and SME customers shield their critical assets and attain regulatory compliance at a fraction of the cost and complexity of traditional security approaches.
President & CEO: Brian Nugent
San Francisco, CA
Centrify Corporation
Centrify’s auditing, access control and identity management solutions centrally secure heterogeneous systems, web applications and databases using Microsoft Active Directory. With Centrify, organizations can improve IT efficiency, better comply with regulatory requirements, and move toward a secure, connected computing environment.
CEO: Thomas Kemp
Mountain View, CA
Damballa, Inc.
Damballa monitors the Internet fabric to pinpoint BotArmy TM formation and rallying activity. Damballa’s real-time intelligence delivers unrivalled protection for Global 1000 clients and OEM partners by identifying compromised hosts that have evaded traditional security technologies.
CEO: Steve Linowes
Atlanta, GA
Fortify Software, Inc.
Fortify Software products protect companies from operational, financial and reputation threats by preventing security problems at the source of those risks: the software applications themselves.
President & CEO: John M. Jack
San Mateo, CA
Oversight Systems, Inc.
Monitors business processes with real time detective controls. Oversight's Transaction Integrity Monitoring solutions analyze activities across multiple financial systems to reduce compliance costs, minimize financial loss and boost operational efficiency.
CEO & co-founder: Patrick Taylor
Atlanta, GA
Retica Systems, Inc.
Retica offers the most advanced and accurate eye biometric identification and authentication solutions for logical, physical and surveillance ID applications to government, industry and business enterprises worldwide.
CEO: Barry Morse
Waltham, MA
Vericept Corporation
Provides comprehensive content monitoring solutions to dramatically reduce network abuse and information security breaches. Appliances using the (VIEW) platform are based upon monitoring and analysis techniques monitoring all forms of TCP/IP traffic (web, email, chat, IM, peer-to-peer, ftp and telnet).
CEO: David Parkinson
Boston, MA
Vormetric, Inc.
Developing the industry's first storage security appliances that provide transparent information-centric protection of all stored data accessible via networks.
President & CEO: Richard Gorman
Santa Clara, CA