David F. Parkinson

Sigma Partners (Sigma Partners) is a venture capital firm founded in 1984 by J. Burgess Jamieson and C. Bradford C. Jeffries. The firm is headquartered in Danville, California.

Books24x7.com, Inc. provides digital reference material. It offers subscription-based information products for technical and management professionals and non-technical knowledge workers. It also offers a PDA-accessible site to allow mobile users to access the company's broad range of content from their internet-enable PDA devices. The company was founded by John Ambrose in 1994 and is headquartered in Norwood, MA.

Phoenix Technologies Ltd. designs, develops, and sells systems software products for PCs, peripherals, and information appliances. It develops basic input/output systems (BIOS), the software that loads a computer's operating system each time it is turned on. The company was founded by Rich W. Levandov in 1979 and is headquartered in Campbell, CA.

Cullinet Software, Inc. distributes database management system. The company was headquartered in Islandia, NY.

Trustwave Holdings, Inc. provides on-demand data security and payment card industry compliance management solutions to businesses and with organizations throughout the world. It offers compliance, web, application, network and data security solutions delivered through the cloud, managed security services, software and appliances. The firm also provides organizations a unique approach with comprehensive solutions that include its TrustKeeper portal and other proprietary security solutions. The company was founded by Joseph L. Patanella, Robert J. McCullen and Andrew Bokor in November 1995 and is headquartered in Chicago, IL.

Vericept Corp. was the provider of comprehensive compliance and data loss prevention solutions. It mitigated internal risk by providing enterprise-wide discovery, classification and prevention of the information exchanged inside and outside an organization. The company was founded in 1999 and was headquartered in Chicago, IL.

The Boston Consulting Group, Inc. engages in the provision of management consulting services. It specializes in automotive and mobility; biopharmaceuticals; consumer products; education; oil and gas; power and utilities; engineered products and infrastructure; financial institutions; and health care payers, providers, and services. It offers big data and advanced analytics; change management; client learning and enablement; and corporate development and financial services. The company was founded by Bruce Doolin Henderson in 1963 and is headquartered in Boston, MA.

Interactions LLC engages in the provision of conversational virtual assistant applications for customer care. Its products include customer engagement, voice biometrics, and social customer care. The company was founded by Michael Edward Cloran in 2004 and is headquartered in Franklin, MA.