Communications
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.
 | Azuki Sytems, Inc. Azuki Systems is an innovative technology provider enabling Interactive Mobile Media Services for content publishers and mobile operators looking to expand and monetize rich media viewership across the 3 billion mobile users worldwide. President & CEO: Jim Ricotta | Acton, MA | ||
 | Certeon, Inc Certeon provides Application Intelligent Networking, increasing the speed security, and scalability of WAN based enterprise applications. The result is a significant reduction in application response times, improvement in user productivity, and enhancement in corporate data security for branch office workers. President & CEO: Peter Dougherty | Burlington, MA | ||
 | YouSendIt, Inc. The trusted leader in digital content delivery - used by millions to securely send, receive and track large and important files. Offering convenient plugins, and subscription plans for individuals, businesses and enterprise organizations, YouSendIt is the solution for on-demand digital delivery. CEO: Ivan Koon | Campbell, CA | ||