Tecogen, Inc. is a leading manufacturer of gas engine-driven equipment. The company markets two product lines: TECOCHILL engine-driven chillers in the 25-400 ton size range and 60 and 75 kW TECOGEN cogeneration modules. A new 100kw inverter-based cogeneration unit is being introduced. Tecogen has an in-house sales staff that manage an independent sales representative network based throughout the United States and the world. Tecogen also has a marketing group, and an extensive service network with service employees in several major cities across the United States.