The International Union of Operating Engineers (IUOE) is a progressive, diversified trade union that primarily represents operating engineers, who work as heavy equipment operators, mechanics, and surveyors in the construction industry, and stationary engineers, who work in operations and maintenance in building and industrial complexes, and in the service industries. IUOE also represents nurses and other health industry workers, a significant number of public employees engaged in a wide variety of occupations, as well as a number of job classifications in the petrochemical industry.

The Missouri State Employees'​ Retirement System (MOSERS), established September 1, 1957, is governed by the statutes of the state of Missouri. MOSERS is a statewide public pension fund providing retirement, disability and survivor benefits for approximately 100,000 state employees, retirees, and their families.

An experienced Midwest specialty contractor focused on Transportation, Safety, and Site Development. Our work includes guardrails, signage, civil construction, fencing, and metal fabrication. Today in 2023 we are celebrating 50 years in business.

Headquartered in Bridgeton, MO, Byrne & Jones Construction is one of the largest commercial pavers in the Midwest. With locations in Illinois, Kansas, Missouri, Nebraska, and Ohio, Byrne & Jones Construction includes several divisions and owned subsidiaries that focus on commercial asphalt paving, commercial concrete, sports construction, parks construction, stabilization, engineering & design, and micro-surfacing. We are in the business of exceeding our client's expectations by combining our experienced team with the latest technology and equipment to get the job done right – on time and within the budget. While specializing in creating solutions to our client's toughest challenges, we bring 45+ years of experience to the job. Our family of companies provide construction services including soil stabilization, paving services, track and field construction, tennis & pickleball courts, concrete flatwork. No matter which of our services you are interested in, we have a committed team to build and maintain your surfaces long-term. To learn more, visit our website at www.byrneandjones.com.

West Contracting is a customer-oriented company specializing in asphalt paving and concrete construction. We service MoDOT, cities and municipalities, new construction sites, and repairs to existing developments. Our services include Asphalt Paving, Asphalt for New Construction, Asphalt Maintenance, Asphalt Resurfacing, Pothole Patching, Chip Seal Asphalt, Ultra Thin Asphalt (Nova Chip), Asphalt Milling, Highways and Bridges and Site Development. West Contracting provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training. In addition to federal law requirements, West Contracting complies with applicable state and local laws governing nondiscrimination in employment in every location in which the company has facilities. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training. West Contracting expressly prohibits any form of workplace harassment based on race, color, religion, gender, sexual orientation, gender identity or expression, national origin, age, genetic information, disability, or veteran status. Improper interference with the ability of West Contracting’s employees to perform their job duties may result in discipline up to and including discharge.

General Contracting Commercial Construction Utilities Drilling Excavation

J.H. Berra Construction Co., Inc. is a construction company based out of 5091 NEW BAUMGARTNER RD, Saint Louis, Missouri, United States.

Highway and bridge construction.

Founded in 1991, ROSCH Companies is a Retaining Wall and Unit Paver Contractor serving all of the United States.

Kozeny-Wagner provides general construction, design-build and construction management services. Our focus revolves around commercial, academic, healthcare, retail, industrial and civil construction projects. The company was founded in 1965 and is based in St. Louis, Missouri.

Specializing in excavation, hydro excavation, grading, concrete flat work and foundations, road maintenance, water/sewer replacement, carpentry, millwright precision

Established in 1997 with the goal of becoming the best site utility contractor in the St. Louis area, we have honed our expertise in Mass Earthwork, Land Clearing, Demolition, Land Development, Site Grading, and Site Finish Grading. Over the past 20 years, our team has grown from 10 to 70 talented members, has been nominated for Best Specialty Contractor of the Year, and was a featured contractor in Industry Scoop. We are also fully bonded and are licensed within numerous counties and municipalities.