Founded in 1978, Sigma is a multi-disciplinary consulting firm delivering a 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 throughout the United States. For more than 38 years, Sigma has provided value-driven, turnkey solutions utilizing a collaborative approach, involving key stakeholders and our professionals from multiple disciplines.

We deliver engineering support throughout all phases of a project from concept, planning and design, through integration, construction, startup, training, and on-call maintenance and support.

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Services Report

Sigma is comprised of skilled professional engineers, resident engineers, construction managers, architectual support personnel, inspectors, technicians, and IT specialists, who effectively address client issues and deliver results that enhance reliability and performance. Our engineering services assist clients with planning, preliminary and detailed design, construction or design-build documents, permits and compliance, bidding assistance, construction administration, implementation and start-up assistance, and long-term maintenance and support for equipment, systems, buildings, and site development.

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Water distribution, wastewater collection, combined sewer tunnels and storage, and storm water management. Delivering engineering support throughout all phases of a project from concept, planning and design, through integration, construction, startup, training, and on-call maintenance. We have successfully delivered over 500 projects in the past 10 years, with a total construction value of more than one billion dollars.

Markets Report

Sigma has the versatility to satisfy client needs through varied project delivery methods. Sigma has been a team member as well as the Prime Consultant on traditional design-bid-build project deliveries, design-bid-build-maintain projects, and has led design/construction teams in design-build projects.

Careers Report

At Sigma, we are constantly searching for outstanding individuals to join our growing team. In addition to our main office in Detroit, Michigan, we have offices located in the Midwest and Mid-Atlantic regions throughout the United States. We are currently looking for qualified applicants for the following positions (Midwest Offices): Project Managers, Civil Engineers, Electrical Design Engineers, IT Professionals, CADD Designers and GIS Developers.Please contact us for more information. Other positions may be available - we are always looking out for talented people to join our team!

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