Founded in 1978, Sigma is a multi-disciplinary consulting firm delivering the full range of engineering, program management, construction management, information technology and staffing support services throughout a project’s lifecycle for public agencies and private sector clients in the Midwest and Mid-Atlantic regions of the United States.
For more than 43 years, Sigma has provided value-driven, turnkey solutions utilizing a collaborative approach, involving key stakeholders and our professionals from multiple disciplines. We deliver support throughout all phases of a project from concept and planning, through feasibility, implementation, integration, startup, training, maintenance, commissioning, construction administration and management, as-builts and document control. Sigma serves the following markets: Water and Wastewater; Transportation; Power and Utilities; Government.