Clark Dietz, Inc. Email Format

Civil EngineeringIllinois, United States51-200 Employees

Clark Dietz, Inc. is a mid-sized, employee-owned civil engineering firm based in Champaign, Illinois, delivering consulting, design, and construction management services to clients across the Midwest. The firm operates ten offices across Illinois, Indiana, Kentucky, Michigan, and Wisconsin and focuses on transportation, civil, environmental, electrical, mechanical, structural, and construction engineering. In 2026, ENR recognized Clark Dietz among its Top 500 Design Firms, reflecting ongoing growth and a commitment to community-focused engineering.

The company prioritizes tailoring its services to each client’s specific objectives, maintaining a long-standing focus on honest and transparent collaboration. Through its integrated engineering and construction management offerings, it aims to deliver outcomes that enhance the quality of life for communities where it works. With a footprint across several Midwest states, Clark Dietz supports projects in transportation, civil, environmental, electrical, mechanical, structural, and construction engineering.

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