Clinton Engineering Among QC’s Fastest Growing Companies
Clinton Engineering Company is proud to be included on the Quad Cities Regional Business Journal’s 2025 Fastest Growing Companies list. This recognition reflects 100 years of delivering trusted design-build, construction, and infrastructure solutions across commercial, industrial, and civil projects. We’re grateful to our dedicated team, clients, and partners whose support continues to drive our growth and strengthen the communities we serve.







Neighbors, fellow farmers, and people Adam and his family had never met showed up the next day with excavators and a willingness to lend a hand. They were moving large portions of the fallen barn walls, pulling out farm equipment and other belongings, and clearing debris. Among the volunteers was Ryan Birney, president of CEC, directing the cleanup efforts with an air of authority. “Ryan showed up in a bright orange CEC safety vest and just started telling people how and where to move the walls safely off the equipment. It was so helpful to have someone with experience doing this sort of thing. He knew where things should be tied off and set. Otherwise, we were working with some good ‘ol farmer engineering.”
“My wind warranty on the previous building was just 3 months past the 5-year warranty mark. The previous contractor was unable to offer help, and other contractors wanted us to find other someone to take care of the concrete work. I was busy running the farm, and didn’t have much time to mess around trying to find different people to get this job done.” That’s when he turned back to the local choice, Ryan at Clinton Engineering. Not only had he been boots on the ground in the storm’s aftermath, but he offered a solution that was comprehensive – a turnkey operation that could handle everything from the foundation up.
Previous building methods would not suffice; the old frost-free cement footings were no longer an option after they had seen the ground break underneath. Instead, they opted for 36-inch sono tubes and sturdy pilons, reinforcing the structure from the ground up. One side was outfitted with HVAC, allowing for more comfortable maintenance, repairs, and office work in the winter and summer months.
“It’s nice to work with a one-stop-shop. CEC is very versatile and can manage all aspects of our larger projects…concrete, framing and finishes,” said Dotterweich. “We save a lot of time and streamline a lot of communication, simply by having all of our contacts under one roof.”
When a project is finished, we remain available to our customers for questions, guidance and support. After all, we’re usually just a short drive away.