David Guttman

Arthur Andersen LLP used to provide accounting services. It was also into consulting services for clients that operate businesses throughout the United States and around the world. Arthur Andersen was founded in 1913 and was headquartered in Chicago, IL.

Part of MRI Software LLC, Workspeed Management develops real estate management and investment software solutions. The company is based in New York, NY. The company was founded by Gilles Quéru. Workspeed Management was acquired by MRI Software LLC on June 30, 2011.

Cengage Learning, Inc. provides educational technology solutions. It offers personalized services and course driven digital solutions for the higher education and K-12, professional, and library markets. The firm's brands include Brooks, Cole, Course Technology, Delmar, Gale, Heinle, South Western, and Wadsworth. The company is headquartered in Boston, MA.

CityScan, Inc. provides municipalities with street level intelligence in the United States. It empowers municipalities to have actionable insights from street-level observation and analytics for proactively responding to changes that impact their communities. The company was founded by David Guttman and Christopher Bissonnette in 2011 and is headquartered in Chicago, IL.

XAct Telesolutions, Inc. operates as a contact center that provides customer support services. The private company is based in Westbrook, ME. The company was founded by David Guttman.

HighBeam Research LLC operates as an online library and research tool for individuals, students and small businesses. The firm helps customers in writing articles and term papers, support presentations and fact check. The company was founded by Patrick J. Spain in August 2002 and is headquartered in Chicago, IL.