Formed in early 1997, Donohue began with a core group of highly experienced, technically diverse personnel. This group was comprised of senior water and wastewater engineers and specialists with process, instrumentation & control, structural, and operations assistance backgrounds. Transportation, civil, electrical, and mechanical engineering expertise has been added to broaden the company's horizon.

The underlying objective for the creation of Donohue was to develop a company with a philosophy to foster close client/engineer teamwork. This philosophy and teamwork result in solutions that meet or exceed a client's goals and expectations.

Today, this philosophy continues.

We believe the best way to continue the growth and recognition of Donohue is to have skilled technical people provide focused service to our clients. Our highly experienced engineers are recognized for their innovative, yet practical solutions and are committed to the client's goals.

To further expand our water and wastewater capabilities, Donohue acquired the Chicago-based engineering firm of Alvord, Burdick & Howson, L.L.C in 2006. Recognizing the firm's 100-year heritage, AB&H is now known as AB&H,  A Donohue Group.

To provide our clients with attentive service, we have offices located in Champaign, Chicago, and Rock Island, Illinois; Indianapolis and Fort Wayne, Indiana; Willmar, Minnesota; Chesterfield, Missouri; and Madison, Milwaukee, and Sheboygan, Wisconsin. Our central office is located in Sheboygan, Wisconsin.