Low Voltage Group (LVG) are renowned providers of commercial electrical, security and communications services in St. Charles, Missouri, USA.

One Hour Heating & Air Conditioning® of Lee's Summit is the most trusted source of HVAC services in the Lee’s Summit area. Their team of Lee's Summit heating and cooling technicians are highly trained and licensed, so that they can provide the best Lee’s Summit HVAC repairs, installation, and maintenance possible.

Rapid Locking System (RLS) LLC designed, engineered, patented, and developed the first press-to-connect fittings for the HVAC and refrigeration industries. With many millions of RLS fittings installed worldwide and nearly 6 years of successful field use, RLS is the only line of press-to-connect fittings proven to stand the test of time in high-pressure HVAC/R applications.

The Unico System is a small-duct, high-velocity central heating and air conditioning system. Ideal for custom & new home construction, historic preservation, older home retro-fit, and commercial applications, The Unico System takes less than one-third the space of a traditional HVAC system.

Wiegmann Associates is a St. Louis-based mechanical contractor and a national pioneer in design/build HVAC projects. Since 1995, Wiegmann Associates has engineered and installed innovative, energy-saving, and cost-efficient HVAC solutions, refrigeration systems, and automation controls for clients in a wide range of industries, including senior living, food and beverage distribution, warehouse, healthcare, commercial and industrial.

William Tao & Associates, Inc. (WTA) is a multi-discipline engineering firm providing innovative services in engineering and energy-effective building systems. WTA provides a wide range of engineering services including mechanical, electrical, plumbing, fire protection, building automation, structural, civil, master planning, and commissioning