John I. Abernethy

Dunrath Capital, Inc. (Dunrath Capital) is a private equity firm founded in 2002 by John Abernethy, Richard Earley and Stephen Beitler. The firm is headquartered in Western Springs, Illinois.

Clean Urban Energy, Inc. develops energy storage and smart grid performance optimization technology. It is the first and only smart grid engine that integrates the HVAC operations of both individual buildings and portfolios of buildings with grid operations and market prices. By executing energy efficiency strategies in large commercial buildings, CUE technology maximizes tenant comfort, reduces costs, extends equipment life, and supports corporate sustainability goals-while providing multi-megawatt thermal energy storage for the electric grid. It has an exclusive R&D and licensing agreement with the University of Colorado. The company was founded in 2007 and is headquartered in Chicago, IL.

SeQual Technologies, Inc. manufactures industrial and medical oxygen, and nitrogen delivery systems. In addition to medical oxygen systems, the company manufactures other PSA-based (Pressure Swing Adsorption), air separation systems for a variety of commercial and industrial applications. The company was founded in 1991 and is headquartered in San Diego, CA.

RedSky Technologies, Inc. provides enterprise telephony management solutions. The firm delivers a full suite of on-premise and cloud-based software and services for all telephony platforms to help large and small organizations of all types capture, manage and deliver the detailed location information necessary to provide effective 9-1-1 emergency response, comply with state E9-1-1 regulations and meet business requirements for safety, risk management and efficiency. The company was founded by Anthony Maier in 1995 and is headquartered in Chicago, IL.

Commerce Clearing House, Inc. is a company based in Deerfield, IL.

APAC Customer Service, Inc. provides customer care services and solutions to the healthcare, communications, business services, media and publishing, travel and entertainment, technology and financial services industries. It delivers customized customer care services and solutions that involve communicating with customers and managing situations that are unique to each core industry. The company provides service through multiple communication channels, including telephone, Internet, online chat, email, fax, mail correspondence and automated response generated through technology. It operates customer care centers in the U.S, which include client-owned facilities and off-shore customer care centers in the Philippines and the Dominican Republic. The company founded in May 1973 by Theodore G. Schwartz and is headquartered in Bannockburn, IL.

The Revere Group Ltd. provides business and information technology consulting services. The company's services web strategy and planning, user interface design, web development, contact management solutions, web stats, analytics and optimization. The company was founded in 1992 and is headquartered in Chicago, IL.