Sigma delivers innovative, quality, total solutions.

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.

Sigma possesses extensive experience leading large scale, complex projects requiring the coordination of multiple disciplines and team members. With client satisfaction as our focus, we work diligently with our clients and partners to ensure we exceed their expectations through the delivery of high quality service.

With offices in the Midwest and Mid-Atlantic and resources throughout the United States, we possess the capabilities to mobilize quickly to service our client’s needs. We offer rewarding opportunities at our various locations and are always seeking talented individuals to join our growing team.

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With resources throughout the United States and our offices in the Midwest and Mid-Atlantic, we possess the capabilities to mobilize quickly to service our clients' needs.

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We offer more than the sum of our services

Sigma has the versatility to satisfy client needs through varied project delivery methods.

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Experience. Accountability. Quality.

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

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