E. Robert Ensey

Performance Technology Group, Inc. provides systems engineering and managed services. The firm offers hosted and remote solutions from basic network monitoring through fully managed systems engineering support. It also provides strategic planning for systems infrastructure to include performance assessments, disaster recovery planning and solutions and virtualization. The company was founded in 1996 and is headquartered in Baltimore, MD.

Compuware Corp. engages in the provision of software solutions and professional services that optimize productivity and reduce costs across the application life cycle. It focuses on the development of mainframe software tools for the development and operations. The firm's products include topaz, topaz workbench, topaz for total test, hiperstation, xpediter, strobe, thruput manager, abend-aid, and application audit. The company was founded by Peter Karmanos, Jr., Thomas Thewes, and Allen B. Cutting in 1973 and is headquartered in Detroit, MI.