Tecogen Inc., founded with a mission to provide efficient and reliable energy solutions, designs, manufactures, and sells industrial and commercial cogeneration systems. These systems produce electricity, hot water, and air conditioning using specially adapted automobile engines that burn natural gas. Tecogen's products are aimed at businesses in the United States that spend significant amounts on energy, offering them substantial cost savings and enhanced power outage protection.

Notable for its extensive operational history, Tecogen has sold over thousands of units, accumulating millions of run hours supported by a nationwide factory service network. The company’s impact is evident in its ability to cut energy costs significantly for its clients while also reducing greenhouse gas emissions. Tecogen's innovative solutions have positioned it as a key player in the clean energy sector, contributing to both economic and environmental sustainability.