Scott Boyd founded QuesTec Mechanical in 1996 and has been serving the mid-west for over 20 years. At QuesTec, we provide mechanical construction services including plumbing and pipe-fitting in the Midwest region. In addition, we operate a commercial HVAC/R Service Maintenance department. You will find us conducting business throughout the mid-west, with strategic locations in Missouri, Kansas, Kentucky, Georgia, and Arkansas. We regularly complete projects that range from just a few thousand dollars to multimillion-dollar projects. Our projects have included hospitals, high schools, universities and a variety of large commercial and government facilities. During our 20+ years, we have completed more than $300 million in mechanical and plumbing construction. We strive to bring value to general contractors and owners by leading our industry in safety, technology, design, and craftsmanship. We believe we can be the best in all these areas as well as bring a better price than any of our competitors. Please take some time to see the projects we have completed, the work we are doing in 3D building integration modeling, and prefabrication. Also contact us to see how we can help service and maintain your facility! www.questec.us

TJ Wies Contracting, Inc. is a family-owned company headquartered in Lake St. Louis, MO with additional offices in Jefferson City, MO and Oak Ridge, TN. The St. Louis Business Journal and the St. Louis Post-Dispatch have consecutively named TJ Wies Contracting one of the best places to work in St. Louis. We are consistently one of the Midwest’s top ranked commercial wall and ceiling subcontractors working in the following industries...health care, hospitality, institutional, student housing, sports facilities, public works, retail, tenant finish, industrial, food service, and the list goes on. Our specialties include metal stud framing, insulation, rough carpentry, drywall, taping, finished carpentry, acoustical ceilings, Nichiha fiber cement siding, prefabricated prefinished exterior wall panels, cold-formed load bearing structures, and modular bathroom PODs. TJ Wies Contracting is a Sto Panel Technology Affiliate. TJ Wies Contracting’s commitment to excellence and high standards steer towards the goal of completing an above par finished product every single time. Our company core values are Safety, Partnerships, Innovation, Integrity, Family and Fun, and we live by those values every day at TJ Wies. Please let us know how we can service your needs on your next commercial project, or if you're interested in joining our top-notch team!

Hoff Heating and A/C offers complete solutions for all of our customers. Our service department will diagnose, repair and maintain your home's heater, furnace, air conditioner, and air quality equipment of all makes and models. Our replacement department offers equipment that will answer all of your indoor comfort needs. Whether you are building your dream home or you are a contractor developing a subdivision, our new construction department will provide you with heating and cooling solutions for every situation.

We service and repair all brands of air conditioners, heat pumps, furnaces, and geothermal systems. We are your Trane Comfort Specialists in the Louisville area, installing only the best Trane heating and cooling systems.

Operating across the central US, EDS tackles everything from small, developmental utility blasting to drilling in some of the largest quarries in the country. ​ Still working out of the same building since 1962, we pride ourselves on having a family-oriented business no matter how large we grow. And growing is just what we are doing. Don't hesitate to contact us no matter where your project is as we are constantly expanding our presence as a staple of the drilling & blasting industry.

INDUSTRIAL CONSTRUCTION AND ENGINEERING CO. is a construction company based out of 88 DIDION DRIVE, ST. PETERS, Missouri, United States.

Capital Railroad Contracting is railroad contractor based out of Columbia MO

IRON HORSE ENERGY SERVICES, INC is a company based out of 419 WEST OUTER ROAD, EOLIA, Missouri, United States.

At Geeding Construction, Inc., our philosophy is simple. We are committed to provide premier pipeline construction and maintenance services to our customers on time, within budget and with no surprises. Jim Geeding, the company’s founder, set the guiding principal that we continue to live by and improve upon... “We will not compromise Safety & Quality, it is our #1 priority and is a non-negotiable job requirement at Geeding Construction, Inc.” Our reputation speaks for itself and our dedication to excellence and an innovative out-of-the-box business strategy have positioned us to offer a full range of services to the pipeline industry. We have assembled a unique blend of the most essential and diverse services for the petroleum and natural gas industry. We support these services with innovative technology, the best tools and our most valued asset, highly trained and dedicated employees.

J Louis Crum Corp is a construction company based out of P.O. Box 1285, Columbia, Missouri, United States.

ThermalTech Engineering is a collection of highly skilled consulting engineers specializing in mechanical, electrical and energy management engineering since 1980. We have 8 offices in 6 states (Ohio, Michigan, Indiana, Pennsylvania, Tennessee and Texas) and are seeking highly qualified candidates who are able to provide innovative solutions to our clients'​ facility, utility, process, and operations challenges. ThermalTech currently has 30+ Professional Engineers registered in 26 states and 7 LEED Certified Professionals with 2 Certified Energy Managers on staff. We are growing! We provide a wide-range of technical services tailored to meet specific customer needs, including: - Energy reduction: auditing, rebates, incentives, implementation. - Expert design, analysis and troubleshooting of systems: manufacturing processes and packaging, power generation, chilled water, steam, process heating/cooling, compressed air, dust collection, and HVAC - Automation and Controls System Engineering from conception and design to configuration, documentation, and startup - ThermalTech Engineer-Led Turnkey™: design/build projects - ThermalTech Engineer-Led Commissioning from design review through functional testing and startup - Master planning and standards development

Founded in 2002, Landesign, LLC continues to be one of the most progressive, well-known green industry businesses in the St. Louis region and is highly committed to excellence in every single aspect of its operation. Specializing in residential and commercial landscaping, as well as a focus on design/build projects, sets Landesign apart from the crowd. The scope of expertise includes: modular block retaining walls, paver walks and patios, concrete drives and walkways, finish grading, sodding, seeding lawns, water features and boulder work, outdoor kitchens, all types of plant material installation, mulching and erosion control. At Landesign, it is our mission to cater to clientele’s individualized tastes by offering a wide range of exceptional products and services, maintain the utmost professional staff that understands and responds to customers’ needs in a friendly, specialized manner, and strive to meet and exceed our customers’ expectations through excellent workmanship and quality materials. We strive to be recognized by customers as providing the best valued products and services; to be recognized by employees as a quality company to work for; to be recognized by suppliers as the best channel for their products; and to be recognized by competitors as an innovative leader in utilizing & implementing techniques that improves our unique industry.