Located in Detroit, Sigma Associates is a multidisciplinary consulting engineering firm that specializes in the treatment and management of water and wastewater. It also offers architectural, environmental, civil, structural, mechanical and electrical engineering services. Established in 1978, the company serves the needs of regional authorities and local, state and federal governments. Sigma Associates comprehensive experience and integrated work approach emphasizes advanced project management techniques, quality assurance standards and value engineering practices. Its wastewater management services include feasibility studies, operability reviews, computerized modeling and flow monitoring. The firm s construction management services include project planning, construction negotiations and resident engineering. Sigma Associates also provides technical support, troubleshooting, preventative maintenance and emergency repair services for information technology-related hardware and software.