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

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

Lozier Heating and Cooling is a heating and cooling company based out of Des Moines, Iowa and has received numerous awards, including the Lennox Circle of Excellence Award every year since 1999. This honor named us one of the top 65 dealers in North America.

Creating a brighter future for every child—every day. Foundations, Inc. is a nonprofit 501(c)(3) organization committed to enhancing educational quality by strengthening the skills of educators. We believe that supporting educators is the best way to improve educational experiences for America’s children and youth – throughout the day, everywhere they learn. Here at Foundations, we are dedicated to creating positive learning experiences for children and helping them thrive. We equip educators with cutting-edge tools and resources, enrich their skillsets through high-quality professional development, and lessen their administrative load so they can focus more on their students. Everything we do is evidence-based. We rely on high-quality peer-reviewed research to ensure that the advice and tools we provide are effective. To keep us grounded in reality, we operate a limited number of afterschool programs where we can explore best practices and test new techniques. Our approach is inclusive – from students, to teachers, to school leaders. Through support services, professional development, and educational resources we are creating a brighter future for every child – every day.

At R.E. Lewis, we embrace challenges and shatter deadlines because we know that in the food refrigeration industry — every second counts. We’re proud of our reputation of providing remarkable service under what others see as ridiculous timelines. Some see obstacles. We see opportunities. We don’t just install ammonia refrigeration systems and mechanical piping, we custom design projects for some of the world’s leading companies in the food industry.

STERNQUIST CONSTRUCTION, INC. is a construction company based out of 1110 NORTH 14TH STREET, INDIANOLA, Iowa, United States.

SystemWorks LLC is an independent, third-party commissioning provider located in West Des Moines, Iowa. We specialize in new building commissioning, existing building retro-commissioning, LEED commissioning, facility analysis, thermal imaging, indoor air quality testing, energy audits utility benchmarking and certified testing and balancing. Our team is comprised of professional and technical personnel experienced in the construction and setup of high performance green buildings. SystemWorks was instrumental in the commissioning of the first LEED rated facility in the state of Iowa which achieved a silver medal in the USGBC’s green building rating system. SystemWorks has successfully earned our targeted credits on over 100 LEED projects and over 5,000,000 sq ft of commissioned space.

Wolf Construction specializes in wood-frame carpentry, trim carpentry, and roofing. Wolf is based in Des Moines, IA but also has operation bases in Twin Cities/Rochester, MN; Omaha/Lincoln, NE; and Kansas City, Denver, CO. The wood-frame and trim carpentry divisions focus primarily on commercial construction projects. The trim carpentry division also does custom residential projects. Wolf Roofing specializes in both new construction roofing and re-roofing for both residential and commercial clients.

GC3 is a full service general contractor specializing in the reconstruction of facilities after natural and man-made disasters. Established in 1994 GC3's corporate HQ are located in West Des Moines Iowa. Licensed to operate in 45 states GC3's helped more than 1100 churches, businesses and institutions begin their recovery. Identified as a Master Builder by MBI, GC3's rebuilt and renovated schools, senior living centers, medical and retail facilities across the country. With an average of 35 years of project management experience per staff member GC3 offers the perfect merger between field expertise and innovative solutions.

Covenant Construction Services is a Commercial General Contractor founded on the discipline of a 20+ year military career along with the technical knowledge of a combined 15 years of construction based education. This skill set coupled with the never ending desire to continually improve has allowed CCS to gain momentum in a down economy. Over the past two years CCS has developed construction operations to encompass work within the Federal Government sector of the industry. With our past work experiences based solely in the private sector it is our goal to tap into existing relationships while working to develop new connections to once again begin working in a relationship based market. CCS’s group of experienced professionals has completed a combined $100+ million worth of construction over the past 7 years. We presently have the ability to perform work on projects ranging in scale from $10,000 tenant improvements to $15,000,000 site developments.

Paving, bridges, barrier wall, Pavement Repair, Milling, Bridge Maintenance, Subbase Installation, Joint Sealing, Dowel Bar Retrofit, Paving, ADA Ramps​