Rieth Riley Construction is a company dedicated to quality performance and to moving forward. It's the way we think. The way we act. The way we approach every project. We bring a forward-thinking approach that gets your job completed on-time, on-spec and on-budget. It's an approach that seeks out the innovative new processes, technologies and techniques that can enable superior results. At the heart of our approach, is a belief that projects only move forward through open and timely communication. In order to meet your expectations, we strive to first understand them and then communicate important project information every step of the way. Moving forward also means quality performance. Our in-house, certified technicians continually monitor the output of our asphalt and concrete plants to make sure we measure up to your special project requirements. Only top quality materials are used to provide the long-term performance and durability our customers demand. We also believe in moving communities forward. We donate our time, skill and capital to a number of employee/owner chosen charities and community events each year. Rieth-Riley is a 100% employee owned company. We truly think like owners and take personal pride and care in every project we do.

Midwest Operating Engineers is a Multi Employee Trust Funds Fringes. The Fund Office is responsible for the administration of the following fringe benefits for the members of I.U.O.E. Local 150: • Midwest Operating Engineers Health & Welfare Fund • Midwest Operating Engineers Vacations Savings Fund • Midwest Operating Engineers Retiree Welfare Plan and the Retiree Medical Savings Plan (RMSP) Account • Midwest Operating Engineers Pension Fund • Midwest Operating Engineers Retirement Enhancement Fund In 1972, the Countryside Campus became home to both the District 1 Union Hall and the Fund Office. Fast forward to today, the Fund Office employs over 100 employees and the current Administrative Manager is Thomas M. Bernstein. The Fund Office is also proud to house the first members only Operators’ Health Center since 2015.

Williams Brothers Construction, Inc. is a construction company based out of 1200 East Kelly Avenue, Peoria Heights, Illinois, United States.

Founded in 1922 by Oscar and Palmer Ulland with a simple philosophy – always keep your word to your customer, always do your best work, and success will follow. We have grown from a two-man wood-cutting partnership to one of Minnesota’s largest excavating and paving contractors. While we are always finding new and better ways to solve old problems, we never lose sight of the simple philosophy that built our business. We know that our work is a reflection of our company and ourselves. It’s no wonder that Ulland Brothers has been providing quality service to the construction industry in Minnesota, western Wisconsin, and northern Iowa for over 100 years. We deploy well maintained construction equipment on every job. Our aggregate reserves ensure we can always supply the highest quality materials to our customers. But our most valuable resource is our people. Their training, education and experience will ensure your project will be done on time and within budget. And their pride and commitment to quality means that your project isn’t just another job…. It’s a Ulland Brothers job.

Duininck, headquartered in West Central Minnesota, is comprised of several diverse construction groups. Whatever the construction project—whether residential, commercial or heavy highway construction—we work hard to meet the demands of your project, and exceed those needs when possible. We also have extensive aggregate exploration and production services available. We are proud to be a third generation family-owned company that has been in business for over 90 years. Our workforce includes 3rd and even 4th generation employee families. We believe that the key to our success is the talented people within our organization.

Lyles Diversified, Inc., through its subsidiaries, operates as a construction services company in the United States. It engages in the construction of pipelines, water and wastewater treatment plants, water pumping stations, groundwater storage, industrial refining plants, road and bridge, power and communications distribution, central plant, public and private utilities, and medical gas and certified systems; and hydroelectric, cogeneration, and solar generation plants. The company also engages in grading and site preparation, asphalt profile grinding and pulverizing, concrete flatwork, irrigation and canal work, plumbing, HVAC mechanical, boiler installation and maintenance, and chiller and boiler installation services; and utility, process, hydronic, and site piping services. Lyles Diversified, Inc. was founded in 1945 and is based in Fresno, California.

Stacy and Witbeck is one of the nation’s largest heavy civil contractors and a top builder of transit and transportation projects. We are recognized as a leader in managing and constructing complex projects while working collaboratively with project owners, designers, and stakeholders to successfully deliver projects. As experts in alternative project delivery methods, we have earned the reputation of being the “go-to” contractor for many agencies. Our talented workforce has experience in all aspects of construction including structures, track work, earthwork, utility work, systems, and systems integration. We take pride in our superior client service, consistent construction excellence, and responsiveness to community concerns. Our safe, prompt, efficient, and fair construction practices have made us a valued partner, contractor, and employer. As an employee-owned company, we are not only invested in the success of our projects, but also the success of our people.

William F. Traylor founded Traylor Bros., Inc. in 1946, finding success by taking on — and succeeding with — extremely challenging projects. His combination of honesty, courage, and innovative abilities are the traits that embody the firm to this day. Traylor is one of the nation’s leading heavy civil contractors. We have a staff of dedicated professionals employing some of the most innovative construction techniques in the industry to build landmark bridges, tunnels, and marine structures.

Advantage Metals Recycling, LLC (AMR) is a wholly owned venture of Cincinnati-based, The David J. Joseph Company (DJJ), one of USA’s largest scrap metal companies. Our parent Company’s rich history began in 1885. We possess a wealth of experience and an entrepreneurial spirit that is vital to success in the scrap recycling industry. DJJ is also part of Nucor Corporation’s family of companies. Headquartered in Charlotte, North Carolina, Nucor is the leading purchaser of ferrous scrap and the largest recycler in North America. Advantage Metals Recycling (AMR) was formed in 1977 as Galamba Metals Group, headquartered in Kansas City. Galamba Metals Group was purchased and renamed Advantage Metals Recycling in 2008 and is wholly owned by The David J. Joseph Company (DJJ), based in Cincinnati, Ohio. Today we are the largest scrap recycling company in Kansas and Missouri, and operate 11 facilities. We buy all types of ferrous and nonferrous scrap metals at each of our recycling locations, with a team of specialists who continually monitor market conditions to establish fair, competitive prices.

Sargent Corporation is an employee owned earthwork construction company that traces our beginning to 1926 in Alton, Maine. Today, our nearly 400 employees work in seven states, specializing in commercial, industrial and institutional site preparation, landfill construction, utility projects, airports, athletic facilities and wind power access. We are led by a field management team boasting over one thousand years of combined experience. At Sargent Corporation, we use the latest technological resources available, a commitment to the equipment we operate, and a perpetual attention to detail. Our mission is to be the most efficient and effective contractor on the planet – and to do things better than they’ve ever been done before. With operations in Northern New England and the Mid-Atlantic states, you can count on our team to meet the demanding technical challenges of your next heavy earthwork project and to produce world class results. Our company is dedicated to providing exceptional quality, ingenuity and service to our clients. We look forward to continuing our uncommon drive to participate in the community and contribute to the growth and development of the people we serve. We are one of the fastest growing companies in our industry and we are the foundations of your roads, runways, wind power and so much more. Our success is in the dirt. At Sargent Corporation, we will never stop honing our craft. That’s what earth moving excellence is all about.

Ryan Incorporated Central has been shaping the earth since 1884. The Company started in Janesville, WI with a team of mules building railroad embankment in Southern Wisconsin and Northern Illinois. By the 1940's the Company had become a full-service grading contractor serving both the private industrial and public transportation customers, including some of the original work at what would become O'Hare Airport. During the 1970's and 1980's, Ryan expanded its'​ services to include landfill construction and waste remediation, and in the 1990's added golf course construction. Today, Ryan Incorporated Central is one of the nation's premier mass excavation and site-work contractors with expertise in residential, commercial, transportation, entertainment, energy and environmental work. This including extensive experience in power and industrial site-work, state-of-the-art municipal and industrial landfill construction and capping, and full service golf course construction. The Company's project size ranges in dollar value from $10,000 to $100,000,000. As the Company has grown its'​ capabilities, it has also expanded geographically having successfully completed projects in over 25 states. The company now has offices in Elgin, Illinois and Hagerstown, Maryland, and a permanent presence throughout the Midwest and Mid-Atlantic regions. Despite the growth, the entire organization's commitment to safety, excellent work, customer service, and professional integrity remains unchanged.

The Jurgensen Companies is a growing, diverse, family owned organization which is the preferred supplier of asphalt pavement, aggregate products and construction services to public agencies and private companies throughout Ohio, Kentucky and Indiana. We are comprised of intelligent, skilled and experienced people that utilize the most innovative technology available to get the job done. Our mission is to be the most innovative and successful leader, providing the highest quality construction products and services. We anticipate, meet, and exceed our customers'​ expectations, and we provide growth and opportunities for our employees now and in the future.