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.

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.

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.

F.H. Paschen has over 115 years of experience in the construction industry. You’ve driven on highways we paved, you’ve travelled through airports we modernized, you’ve commuted through rail stations we constructed, and your children learn in schools we built. But we are MORE than that. We offer MORE Versatility—as we work in any industry, offering any delivery method and service. We operate with MORE Tenacity—as we maneuver through tight schedules, spaces, and budgets. We provide MORE Ingenuity—by creating solutions to solve your greatest challenges. And we perform with MORE Pride—in focusing on safety and quality, and in offering more opportunities for our communities and diverse populations to build with us. We deliver far more than just on time and on budget—we deliver with MORE Paschen. | Follow us as we continue to #BuildWithPaschen |

For more than a century, Prus has been building infrastructure. From concrete bridges and walls, to city streets and and stormwater management facilities; from miles of bike paths to a single block of sidewalk, Prus pride of craftsmanship shows in everything we do.

Corna Kokosing is now CK Construction. CK Construction Group is a self-performing general contractor and CM, serving the Midwest since 1956. Beyond construction management, our in-house trades set us apart in today’s demanding marketplace. Trades include concrete, steel erection, carpentry, and millwork. We build for a variety of markets, including healthcare, education, industrial, and cultural organizations.

George J Igel & Co Inc is a construction company based out of Columbus, Ohio specializing in Site Development, Earthwork, Utilities, Concrete, Soil Stabilization, Earth Retention Systems, Roller Compacted Concrete, and Asphalt Paving. Our mission is to be the company of choice proudly building with a team that cares and strives to be a positive and creative driving force in the construction industry, while upholding our core values of Integrity, Gratitude, Excellence, and Leadership.

Morrison Construction Company is a full service, multi-discipline union contracting firm with 90+ years of experience. We continue to meet the needs of the construction industry with performance that achieves project success through out safety and quality programs, technical proficiency, responsive management, financial strength and professional integrity.

Ironworkers Local 380 is a construction company based out of 1602 Butzow Dr, Urbana, Illinois, United States.

Louisville Paving and Construction Company is a family-owned business serving the Louisville Metro and southern Indiana region (Kentuckiana) with a complete range of commercial and residential site construction and asphalt paving services. We specialize in road construction and rehabilitation, asphalt milling and paving, commercial parking lots and driveway construction as well as treatment plants, asphalt testing and trucking services. Founded in 1949, Louisville Paving and Construction Company owns and operates three modern asphalt plants in the greater Louisville area. We are fully certified for asphalt design and production.

The Gerken Companies have worked to successfully build and improve the infrastructure of Northwest Ohio and Southeast Michigan for more than 60 years. As technologies, people and industry specifications have changed, The Gerken Companies have met a wide variety of challenges and have continued to grow and improve from season to season. With a diligent work force of more than 350 men and women, The Gerken Companies have a dedication to construction quality, an accurate foresight into industry trends, and the ability to adapt and operate in a competitive environment. Successful management has allowed The Gerken Companies to diversify the array of available services. Stone quarries, sand and gravel facilities, asphalt and aggregate testing laboratories, roadway services and decorative asphalt paving augment the operation of the company's paving division and open doors for continuous improvement in project management and for strong relationships with clients and business partners. The Gerken Companies include Gerken Paving, Inc., Gerken Materials, Inc., Gerken Asphalt Paving, Inc., Gerken Leasing Company, LLC, Roadway Services, Inc., The Custar Stone Company, The Bluffton Stone Company and Bluffton Paving, Inc.

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.