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Since the firm’s founding over 25 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.

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Acquia, Inc.
Acquia provides value-added software products and services for the Drupal open source web publishing and collaboration platform. Acquia products and services empower anyone to deliver beautiful and powerful web sites and applications without programming.
CEO: Tom Erickson
Managing Director: John Mandile
Woburn, MA
Attributor Corporation
Attributorʼs content tracking and analytics platform enables publishers to build value with their content wherever it appears on the Internet. With Attributor, publishers can now program when, how and where their content is presented across the Web and social networks.
CEO: Jim Pitkow
Managing Director: Gregory C. Gretsch
Redwood City, CA
CrownPeak Technology
CrownPeak is the first company to provide enterprise-level 360 Degree Web Site Management, including web content management, site search and web hosting as a completely hosted service.
CEO: Jim Howard
Managing Director: Bob Spinner
Los Angeles, CA
Damballa, Inc.
Damballa provides real-time protection and remediation against bot-driven targeted attacks that evade other security technologies. Our approach monitors the Command-and-Control needed to launch attacks across the Internet so enterprise organizations can identify compromised systems in real-time and eliminate malicious activity.
CEO: Val Rahmani
Managing Director: John Mandile
Atlanta, GA
Demandbase, Inc.
Demandbase is the first real-time targeting and personalization platform for B2B, transforming the effectiveness of marketing programs. Demandbase enables B2B marketers to dynamically customize web experiences and engage each web visitor based on their unique business needs.
CEO: Chris Golec
Managing Director: Bob Spinner
San Francisco, CA
DocuSign, Inc.
DocuSign offers an enterprise class Web-based electronic signature service that provides the simplicity, speed and security required to electronically sign contracts and documents. DocuSign helps enterprises increase revenue and sales close rates, decrease costs and accelerate business velocity.
CEO and President: Keith Krach
Managing Director: Peter Solvik
Seattle, WA
Enkata Technologies, Inc.
Delivers revolutionary software solutions that allow you to discover breakthrough improvement opportunities in your company's core business process.
President & CEO: David Stamm
Managing Director: Peter Solvik
San Mateo, CA
Intacct Corporation
Intacct provides on-demand financial management applications for over 2,000 small and midsize businesses that have outgrown products like QuickBooks. Companies can easily add users, applications and business units as they grow, making Intacct the last financial management suite they’ll ever need.
CEO: Robert Reid
Managing Director: Bob Spinner
San Jose, CA
MarketLive, Inc.
MarketLive’s leading enterprise-class solution creates and deploys world-class e-commerce technology specifically designed to meet the unique requirements of catalogers, retailers, direct marketers, and manufacturers.
CEO: Mark Pierce
Managing Director: Bob Spinner
Petaluma, CA
oDesk Corporation
oDesk is the world’s largest and fastest-growing online workplace, allowing businesses and contractors to work together without geographic limits. We enable businesses to hire, manage and pay a flexible, online workforce, and we enable contractors to work whenever, wherever and however they choose.
CEO: Gary Swart
Managing Director: Gregory C. Gretsch
Redwood City, CA
Rave Mobile Safety
Is the leading provider of reliable safety applications for mobile users. Rave builds, sells and supports the award-winning Rave Alert, Rave Guardian and Rave Campus products that deliver the only two-way safety solution complete with inbound and outbound emergency alerting.
CEO: Tom Axbey
Managing Director: Robert E. Davoli
Framingham, MA
Recyclebank
Recyclebank has revolutionalized municipal recycling in America. By merging technology, incentives, environmental practices and partnerships, Recyclebank has developed a sustainable long-term solution to the recycle challenge. Recyclebank's mission "promote environmentally conscious waste disposal by offering households financial incentives to recycle."
CEO: Jonathan Hsu
Managing Director: Robert E. Davoli
New York, NY
SugarSync, Inc.
SugarSync develops software and services that simplifies the way people organize and access digital content. SugarSync enables PCs, mobile phones and the web to work together automatically to keep photos, files and information in sync, backed up online; instantly accessible from anywhere.
CEO: Laura Yecies
Managing Director: Gregory C. Gretsch
Palo Alto, CA
Toolwire, Inc.
Toolwire is an immersive experiential learning provider specializing in digital media and virtualization.
President & CEO: John Valencia
Managing Director: Lawrence G. Finch
Pleasanton, CA
Vendavo Corporation
Provides sales analysis and decision support software to help businesses improve revenue and profits.
President & CEO: Alan Crites
Managing Director: Wade Woodson
Palo Alto, CA
Viximo, Inc.
Viximo provides a digital goods platform that enables online and mobile communities to monetize their destinations with digital goods.
CEO: Dale Strang
Managing Director: Robert E. Davoli
Cambridge, MA
WordStream, Inc.
WordStream provides internet marketing productivity tools, including solutions to simplify working with keywords, Pay-Per-Click (PPC), the Long Tail, Quality Score, Google AdWords, Web Analytics, Search Engine Marketing (SEM) and Search Engine Optimization (SEO).
CEO: Ralph J. Folz
Managing Director: Paul Flanagan
Boston, 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
Managing Director: Bob Spinner
Campbell, CA