Allied Engineering, Inc ( AEI ) weve been providing full-service, multi-discipline engineering to our clients throughout New England for more than 50 years. We are one of the first firms in Maine to offer full-service building commissioning.Our ongoing success is based on our staff of professional engineers and technicians who understand the complexities of building design for new facilities and for renovation projects. Green building design is at the heart of our practice.Our attention to detail and our in-house coordination of all engineering disciplines leads to award-winning projects and long-lasting client relationships both on a professional and a personal level. Allied Engineering is a Woman-Owned Small Business ( WOSB ).