Steamfitters Local 342 was chartered into the United Association of Journeyman and Apprentices in the Plumbing and Pipefitting Industry of the United States and Canada in 1914. It began with twenty-one charter members who sought a shorter work-day, wage increases, and better working conditions. Those original members endured adverse conditions that are well documented in the history of the American Labor Movement. What started as a small band of steamfitters grew to encompass workers in the welding, pipeline, refrigeration, and plumbing trades. The acquisition of these skilled trades came by way of mergers with other UA locals, including Plumbers Local 444 in 1994, and helped to establish one of the strongest examples of a combination local. We are proud of our humble beginnings and strive to maintain the highest standard of excellence.

Established in 1906, The Waldinger Corporation is a premier mechanical, electrical, sheet metal and service contractor operating under a people-first approach. Headquartered in Des Moines, Iowa, The Waldinger Corporation has branches throughout the Midwest United States, and has built a reputation as an industry leader since its beginnings over 100 years ago. The Waldinger Corporation is an Affirmative Action and Equal Opportunity Employer - Minority/Female/Disabled/ Gender Identity/Sexual Orientation/Veteran

We are here to solve the biggest problems in 401k's.

Iron Workers Local Union 7 is a company based out of Paducah, KY, United States.

Are you in need of skilled craftsmanship, reliability, and excellent service for your commercial framing, drywall, acoustical, painting, doors, or window treatments project? The Heartland Companies is your commercial subcontractor. Heartland was founded on hardworking Midwestern values. Our first day of business was March 19, 2002. We added our door and hardware services in 2007 and window treatments/cubical curtains division in 2009. Although we have grown to become one of Des Moines’ premier finishing subcontractors, our team is committed to our customer’s satisfaction. Our goal is to not only meet their expectations, but to exceed them whenever possible.

Graham Construction is one of the leading Construction Managers and General Contractors in the Midwest. The skills that have made us one of the top healthcare contractors in the Midwest, have also benefited customers in other industries with complex projects such as labs, demanding renovations requiring continuous operations, and projects with aggressive schedules. We are committed to "Building what's important"​; our relationships with our customers, architects, and trade partners. We believe that trust, honesty and open communication are critical foundations for building long-term relationships. This philosophy has led to a long list of repeat customers, some that we are proud to have been associated with since our inception in 1981.

Central Iowa's premier ready mixed concrete supplier. Pouring concrete since 1971.

Academy Roofing & Sheet Metal of the Midwest specializes in commercial & industrial roofing needs. Academy Roofing is your source for any new roof construction or commercial roof repair. Academy Roofing & Sheet Metal of the Midwest is always ready to help.

In 2001, Concrete Technologies opened for business with four employees and a focus on commercial foundations, floors, and parking lots. Since then, Concrete Technologies has grown to over 150 employees and added mainline paving to its service line. Initially focused on Central Iowa, Concrete Technologies has successfully completed projects throughout Iowa and the Midwest.

Midwest Automatic Fire Spnklr is a construction company based out of 1823 Raccoon St, Des Moines, Iowa, United States.

Iowa's Leading Disaster Restoration Contractor since 1974 - Commercial & Residential. 24 hr Response Team providing emergency Fire, Water, Wind and other disaster cleanup (Mitigation) & repairs. We specialize in providing expert structural and cosmetic restoration for Commercial and Residential properties, damaged by fire, water, wind or other disasters. We are a full-service contractor who will coordinate and manage all phases of the restoration process, including ongoing communication with the property owner and the insurance company.

Woodman Controls Company is an independent building automation provider that designs, engineers, installs, programs, and services HVAC/Lighting/Card Access/Camera controls for the entire state of Iowa as well as other states. Woodman Controls is Iowa's Intelligent Building Solution. We can fully automate your building and improve the efficiency, comfort, and security of your facility.