The Matthews Group, Inc. t/a TMG Construction Corporation (TMG) is a General Contractor and Design-Builder specializing in fu ... lly operational and occupied environments. TMG’s operations focus on three sectors of technical expertise that involve: • Building Systems and Technologies • Interiors and Building Upgrades • Specialty Civil and AT/FP TMG’s work includes the ability to manage hundreds of concurrently performed projects typical of Indefinite Delivery Indefinite Quantity (IDIQ) and Job Order Contract (JOC) type contracts, as well as single contracts valued over $20 million per project. read more