American Energy Management (AEM) is a systems integrator specializing in building automation. The company is based in Westborough Massachusetts, and since 1978 has installed over one thousand systems that control over one hundred million square feet of space. These systems monitor the building's environment and make intelligent decisions about ventilation, heating, cooling, lighting, and building control. They track actual conditions and automatically make changes to deliver measured comfort at minimum operating cost. We have developed highly efficient methods of designing systems, organizing projects and producing tailored application software. This allows us to deliver software systems of uncommonly high quality that are simple to use yet low in cost.