GDS Associates, Inc. (GDS) is a multi-service consulting and engineering firm formed in 1986 and now employs a staff of more than 170 in seven locations across the U.S., including a 20-person northeast regional office located in Manchester, New Hampshire. GDS provides diagnostic testing and information on energy efficiency and renewable options to homeowners, businesses and local government/institutions throughout the region. Our consultants are recognized leaders in their respective fields, dedicated to their clients, innovative in their approach to meeting unique challenges, and known for consistently being available when needed. Our broad range of expertise focuses on clients’ needs surrounding electric, gas, water and wastewater utilities. Additionally, we offer information technology, market research, and statistical services to a diverse client base.