American DG Energy Inc. (NYSE Amex: ADGE) is the leading On-Site Utility offering electricity, heat, hot water and cooling to commercial, institutional and industrial customers. American DG Energy sells the energy produced on-site as a risk free alternative to outright purchase of energy equipment. American DG Energy will sell, finance, install, own, operate and maintain complete cogeneration and cooling systems tailored to a customer’s specific site requirements. American DG Energy offers customers the option of On-Site Utility energy, complete installation or just equipment. The result is lower energy costs for customers. The services are available wherever energy rates are high.

The Company was founded by Dr. George N. Hatsopoulos and Dr. John N. Hatsopoulos, the co-founders of Thermo Electron Corporation which is now Thermo Fisher Scientific Inc. (NYSE:TMO).