Current Investments
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 | ||
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aPriori Technologies, Inc. Provides accurate cost estimates in design and costing systems in manufacturing that have unparalleled speed and ease of use - allowing our customers to design and manufacture the highest margin products. President and CEO: Stephanie Feraday Managing Director: Robert E. Davoli |
Concord, MA | ||
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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 | ||
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AutoVirt, Inc. AutoVirt is the emerging leader in fully automated online data migration solutions for mid-range Windows environments. AutoVirt™ software offers customers a data migration solution that is easy to deploy with no incremental work, downtime, configurations changes, or software agents required. CEO: Josh Klein Managing Director: Robert E. Davoli |
Nashua, NH | ||
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Azuki Systems, 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: John Clancy Managing Director: Robert E. Davoli |
Acton, MA | ||
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CallMiner, Inc. CallMiner is the leading developer of speech analytics solutions that deliver near real-time customer intelligence from recorded conversations. CallMiner provides a complete and accurate understanding of the content, context and purpose of the entire conversation and of every call. CEO: Terry Leahy Managing Director: Robert E. Davoli |
Fort Myers, FL | ||
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Casenet, Inc. Casenet’s suite of flexible care management software solutions enables health insurance payers to automate and streamline the delivery of consistent, member-centered care. Our software solution is fully interoperable and designed specifically to enable the cost-effective coordination of complex care. CEO: Kevin Brown Managing Director: John Mandile |
Waltham, MA | ||
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Centrify Corporation Centrify’s auditing, access control and identity management solutions secure cross-platform systems, databases, and web and enterprise applications using Microsoft Active Directory. The Centrify Suite improves IT efficiency, strengthens regulatory compliance, and centrally audits and controls access to a heterogeneous environment. CEO: Thomas Kemp Managing Director: Peter Solvik |
Mountain View, CA | ||
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Certeon, Inc. Certeon's aCelera Virtual Appliance software is the industries' first and only virtual appliance for application acceleration. aCelera software reduces application response time over the WAN by more than 95% - accelerating more applications, to more users, for less cost. President & CEO: Peter Dougherty Managing Director: Robert E. Davoli |
Burlington, MA | ||
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CiRBA, Inc. CiRBA's Data Center Intelligence software enables organizations to rapidly analyze and visually map the safest path to an optimally consolidated and virtualized data center. Using a unique cross-platform approach, CiRBA addresses all configuration, workload, and business constraints required for success. President & CEO: Gerry Smith Managing Director: John Mandile |
Ontario, Canada | ||
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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 | ||
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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 | ||
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Demandbase, Inc. Demandbase provides on demand B2B customer acquisition solutions that enable sales and marketing professionals to identify, reach, and convert new business. In use at more than 1,000 companies, Demandbase helps generate more sales opportunities and drive new business. CEO: Chris Golec Managing Director: Bob Spinner |
San Francisco, CA | ||
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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 | ||
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doxo, inc. doxo is pioneering the way that people connect and go paperfree with their providers. doxo provides consumers a free secure digital file cabinet to receive, organize, pay, and file bills and other important documents from multiple service providers, dramatically increasing paperless adoption. CEO & Co-Founder: Steve Shivers Managing Director: Gregory C. Gretsch |
Seattle, WA | ||
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EchoFirst™ Inc. EchoFirst™ Inc. is the creator of Echo®, a revolutionary new solar energy system that delivers twice as much energy as a basic solar electric “PV” system, giving customers the power to meet a majority of their home’s energy needs. CEO: Vikas Desai Managing Director: Fahri Diner |
Berkeley, CA | ||
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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 | ||
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Everspin Technologies, Inc. Everspin Technologies is the global leader in developing and manufacturing magnetic-based memory (MRAM) and integrated magnetic systems. Everspin delivers the most reliable, high-performance and cost-effective nvRAM in the market, enabling customers to provide unique products. President and CEO: Phillip LoPresti Managing Director: Lawrence G. Finch |
Chandler, AZ | ||
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ExaGrid Systems, Inc. ExaGrid is the leader in cost-effective disk-based data protection solutions. ExaGrid’s scalable disk-based backup solution is ideal for mid-market and small enterprise companies looking to quickly eliminate the hassles of tape backup while reducing their existing backup windows. President & CEO: Bill Andrews Managing Director: Robert E. Davoli |
Westborough, MA | ||
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Expressor Software Corporation Founded in 2003, Expressor Software develops next-generation data integration software for the global 2000. CEO: Robert Potter Managing Director: John Mandile |
Burlington, MA | ||
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GainSpan Corporation GainSpan develops low power WIFI semiconductors and software, providing up to 10 years of battery life to battery powered sensors and devices. The company focuses on building, home automation and asset tracking applications, leveraging the large installed base of WIFI networks. CEO: Greg Winner Managing Director: Lawrence G. Finch |
Los Gatos, CA | ||
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GlassHouse Technologies, Inc. GlassHouse is a professional services firm, providing clients with insight and expertise into information management, storage technology and business continuance needs. President & CEO: Patrick Scannell Managing Director: Robert E. Davoli |
Framingham, MA | ||
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Heartland Robotics Heartland Robotics is developing a revolutionary new generation of intelligent robots to increase productivity and efficiency in manufacturing environments. These robots will be intuitive to use and highly flexible. They’ll be easy to buy, train, and deploy and will be unbelievably inexpensive. President & CEO: Scott Eckert Managing Director: Paul Flanagan |
Cambridge, MA | ||
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High Street Partners High Street Partners is the leading international business services firm. HSP simplifies the management and control of international operations, empowering Finance, Legal and HR to focus strategically. SaaS-enabled HSP OverseasDirect® integrates payroll, bookkeeping, tax filing, HR, tax and legal compliance. Founder & President: Larry Harding Managing Director: Paul Flanagan |
Annapolis, MD | ||
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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 | ||
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Interactions, Inc. Interactions’ mission is to improve the quality and economics of customer care. Its patented HumanTouch™ technology brings an unprecedented level of understanding to automated voice platforms and interactive systems enabling a consumer experience that’s like a natural conversation. www.interactions.net Understanding Enabled™ CEO: Mike Iacobucci Managing Director: Robert E. Davoli |
Franklin, MA | ||
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iWalk iWalk is developing robotic prosthetic and orthotic (exoskeleton) devices for human augmentation. iWalk products aim to normalize human gait and function for patients with limb loss or other limb pathologies. iWalk’s first product, BiOM, is a unique microprocessor controlled, powered robotic ankle/foot prosthesis. CEO: Tim McCarthy Managing Director: Paul Flanagan |
Cambridge, MA | ||
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iWatt, Inc. Develops patented pulseTrain digital technology for the power supply industry. Unlike most power supply controllers, iWatt's controller is nearly all digital. iWatt's chip at 90% digital means customers can eliminate the problems of traditional analog design, such as compensation. President & CEO: Ron Edgerton Managing Director: Lawrence G. Finch |
Los Gatos, CA | ||
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Jellyvision, Inc. Jellyvision uses a unique approach to human/machine interface, Interactive Conversation, to help clients convert more traffic into customers. Jellyvision’s virtual advisors provide a conversational, dynamically personalized sales experience, like a real-life advisor, resulting in a more meaningful – and effective – experience. Founder & CEO: Harry Gottlieb Managing Director: Gregory C. Gretsch |
Chicago, IL | ||
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JouleX JouleX, an innovator in sustainable energy management systems for the enterprise, provides organizations with the ability to monitor, analyze and control energy usage for all network connected devices and systems across the enterprise, including distributed offices, data centers and facilities. CEO: Tom Noonan Managing Director: John Mandile |
Atlanta, GA | ||
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Kateeva Kateeva is committed to making Organic Light Emitting Diode (OLED) based displays the dominant flat panel display technology. CEO: Conor Madigan Managing Director: Fahri Diner |
Menlo Park, CA | ||
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Leyden Energy, Inc. Leyden Energy, formerly known as Mobius Power, Inc. is a leading lithium ion R&D and manufacturing company that has perfected a patent on uniform cell heat distribution, resulting in greater thermal stability in high energy density lithium ion batteries. CEO: Aakar Patel Managing Director: Wade Woodson |
Fremont, CA | ||
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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 | ||
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Menara Networks, Inc. Menara Networks develops products that greatly simplify the layered optical networks. Taking advantage of fundamental innovations at the ASIC, and optical level; Menara products enable optical networks with fewer elements and faster service turn-up resulting in CapEX and OpEx savings. President & CEO: Siraj Nour El-Ahmadi Managing Director: Wade Woodson |
Dallas, TX | ||
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Mobiquity, Inc. Mobiquity is a Strategy-led, Implementation-driven professional services firm that builds and deploys Enterprise-class mobile solutions. Chairman & CEO: Bill Seibel Managing Director: Robert E. Davoli |
Marlboro, MA | ||
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Nasuni Corporation Nasuni Corporation is building the next generation network attached storage device (NAS) for the enterprise using recent advancements in cloud compute and storage technologies to deliver a rich set of functionality at an exceptional value to our customers. CEO: Andres Rodriguez Managing Director: Paul Flanagan |
Natick, MA | ||
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NEXX Systems, Inc. NEXX Systems provides processing equipment for advanced wafer level packaging applications. Its product lines provide the most efficient, yet affordable, systems of their kind: Apollo and Nimbus for multi-layer sputter deposition of metals, and Stratus for high throughput electro-deposition of metals. CEO & President: Tom Walsh Managing Director: Clifford L. Haas |
Billerica, MA | ||
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Noetix Corporation Provides infrastructure software solutions enabling corporations to automatically map complex, fragmented data and translate it into understandable business information. CEO: Morris Beton Managing Director: Peter Solvik |
Redmond, WA | ||
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oDesk Corporation oDesk enables buyers of services to hire, manage, and pay technology service providers from around the world. Buyers choose oDesk for top global talent, comprehensive management tools, and a flexible hourly payment model. Service Providers choose oDesk for challenging jobs and guaranteed payment. CEO: Gary Swart Managing Director: Gregory C. Gretsch |
Sunnyvale, CA | ||
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OpenSpan, Inc. OpenSpan is the pioneer of Surface Integration™ - a new and innovative approach to desktop integration and the streamlining of end user desktops. OpenSpan's flagship product, Composite Studio, fully enables rapid integration and automation between applications, without programming. CEO: Eric Musser Managing Director: John Mandile |
Atlanta, GA | ||
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OutStart, Inc. OutStart software powers the transfer of knowledge through formal learning, informal learning and social software, resulting in improved business agility; the enablement of employees, partners and customers to optimally perform their jobs; as well as fast, tangible ROI. Visit www.outstart.com CEO: Massood Zarrabian Managing Director: Robert E. Davoli |
Boston, MA | ||
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Oversight Systems, Inc. Monitors business processes with real-time detective controls. Oversight's Continuous Controls Monitoring solutions analyze activities across multiple financial systems to reduce compliance costs, minimize financial loss and boost operational efficiency. CEO & co-founder: Patrick Taylor Managing Director: John Mandile |
Atlanta, GA | ||
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Paradigm4 Paradigm4 powers ‘big analytics’ for ‘big data’ in markets like healthcare, life-science research, financial services, digital marketing, web analytics, and insurance telematics. Paradigm4’s integrated data management and analytics software provides massive scalability and speed on public and private commodity hardware grids. CEO: Marilyn Matz Managing Director: Robert E. Davoli Principal: Richard Dale |
Waltham, MA | ||
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Quantenna Communications, Inc. Quantenna Communications Inc. is developing wireless ICs with game-changing size, power, and performance characteristics. CEO: David French Managing Director: Fahri Diner |
Fremont, CA | ||
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R2 Semiconductor R2 Semiconductor is developing novel analog semiconductors for a broad range of applications including mobile devices. CEO: David Fisher Managing Director: Fahri Diner |
Sunnyvale, CA | ||
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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 | ||
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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 | ||
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Replay Solutions, Inc. Replay Solutions was founded in 2003. The goal was simple, to create a suite of products based on their ground-breaking Replay technology that would help software developers get their products done on time, with as few bugs as possible. CEO: Larry Lunetta Managing Director: Bob Spinner |
Redwood City, CA | ||
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ScanCafe, Inc. ScanCafe, the world’s premier imagery scanning and restoration service, allows consumers and enterprise to cost effectively and efficiently convert analog media into digital format. ScanCafe loads the digital images into an online gallery for sharing and creation of photo-themed products. CEO: Sam Allen Managing Director: Peter Solvik |
Burlingame, CA | ||
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Silverlink Communications, Inc. Silverlink is a consumer communications company that drives behaviors in the highest impact areas in healthcare. The company’s solutions help healthcare enterprises manage entire communications processes and drive dramatic cost savings both to their bottom line and to the consumer. President & CEO: Stan Nowak Managing Director: John Mandile |
Burlington, MA | ||
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Soladigm, Inc. Soladigm is a developer of next-generation green building solutions designed to improve energy efficiency. The company’s highly energy-efficient Dynamic Glass switches from clear to tinted on demand, resulting in significant cost savings, environmental benefits, and quality of life enhancements. CEO: Rao Mulpuri Managing Director: Fahri Diner |
Milpitas, CA | ||
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Solaria Corporation Solaria Corporation designs, manufactures and markets silicon PV modules to solar system integrators, project developers and electric utilities. Based on its patented low-cost technology, Solaria’s modules provide reliable performance while matching form, fit and performance of conventional PV modules. CEO: Daniel Shugar Managing Director: Wade Woodson |
Fremont, CA | ||
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Strava Strava develops web and mobile applications for avid athletes that let them experience their GPS and fitness data in ways they never imagined - sharing, comparing, and competing with others. The experience we deliver is insightful, motivational and fun - and it’s addicting. CEO: Michael Horvath Managing Director: Gregory C. Gretsch |
Hanover, NH | ||
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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 | ||
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Svaya Nanotechnologies, Inc. Svaya uses nanotechnologies to make everyday products better and to enable revolutionary new products. The technology is a layer-by-layer assembly deposition process for multifunction nanostructured engineered surfaces. CEO: Steven D. White Managing Director: Wade Woodson |
Sunnyvale, CA | ||
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Tervela, Inc. Tervela is the first appliance-based messaging technology provider. Our technology enables an order of magnitude improvement in both message routing capacity and latency reduction. CEO: Eric Schnadig Managing Director: Robert E. Davoli |
New York, NY | ||
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Toolwire, Inc. An enterprise service provider specializing in live, hands-on access to real technology through the dynamic provisioning of shared and private workspaces. President & CEO: John Valencia Managing Director: Lawrence G. Finch |
Pleasanton, CA | ||
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TradeBeam, Inc. Provides a software solution that streamlines global trading processes. By supporting the entire lifecycle of a global trade across order, logistics and settlement activities the Tradebeam solution improves global trade operating efficiencies and cash flows. CEO: Graham R. F. Napier Managing Director: Clifford L. Haas |
San Mateo, CA | ||
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Trustwave Trustwave is the leading provider of on-demand and subscription-based information security and payment card industry compliance management solutions to businesses and government entities throughout the world. CEO & President: Robert J. McCullen Managing Director: Robert E. Davoli |
Chicago, IL | ||
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Tula Tula is developing an advanced engine management technology for internal combustion engines. President & CEO: Scott Bailey Managing Director: Fahri Diner |
Santa Clara, CA | ||
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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 | ||
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Verivue, Inc. Develops and markets high-performance IP platforms that enable network operators to distribute, deliver and manage enormous amounts of IP-based media traffic across a growing and diverse number of end devices; offering solutions for Internet video, cable video and IPTV applications. CEO: James Dolce Managing Director: Fahri Diner |
Westford, MA | ||
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Vesta Retail Networks VRN develops, finances and operates consumer advertising networks for major retailers. Suppliers, brands and agencies use these networks to reach affluent households around major retailers like Walmart, Target, Macys, Home Depot, Walgreens, Staples, Best Buy and many others. CEO: J.D. Shulman Managing Director: Robert E. Davoli |
New York, NY | ||
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Virtusa, Inc. Virtusa is a global provider of software development and IT services to Fortune 1000 enterprises and leading enterprise software companies in the financial services, communications, and high technology industries. Chairman & CEO: Kris Canekeratne Managing Director: Robert E. Davoli |
Westborough, MA | ||
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Visual Mining, Inc. Visual Mining delivers visualization solutions that instantly transform your data into actionable business information. Visual Mining's NetCharts products deliver comprehensive solutions for both developers and end users that are intuitive and effective. President & CEO: Tristan Ziegler Principal: Richard Dale |
Rockville, MD | ||
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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 | ||
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Vlingo Corporation Vlingo has created a dramatically improved user interface for mobile devices using advanced speech recognition technology. The result is a personalized interface which gives users new ways to access a wide variety of mobile applications and content. CEO: Dave Grannan Managing Director: Robert E. Davoli |
Cambridge, MA | ||
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VoltDB Founded by DBMS pioneer Mike Stonebraker, VoltDB provides a very fast, scalable open-source relational database management system for Internet, financial services and other companies that have outgrown the performance limitations of traditional databases. CEO: Scott Jarr Managing Director: John Mandile |
Billerica, MA | ||
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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 Managing Director: Bob Spinner |
Santa Clara, CA | ||
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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 | ||
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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 | ||
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Zetta, Inc. Zetta is enterprise class cloud storage. Zetta’s storage solutions host and protect data for enterprises while increasing IT productivity, data availability and data protection without the costs, complexities and risks of traditional storage hardware and software products. CEO: Ali Jenab Managing Director: Gregory C. Gretsch |
Sunnyvale, CA | ||