With 105 employees and 2020 revenue of $64.45 million, Wiegmann Associates has been named the 5th largest St. Louis Mechanical Contractor by the St. Louis Business Journal.

Wiegmann Associates is a St. Louis-based mechanical contractor and a national leader in design/build HVAC projects. Since 1995, Wiegmann Associates has engineered and installed $1 billion in 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. Wiegmann also provides 24-hour preventative maintenance programs and service in the St. Louis region. Wiegmann is ranked among the top 50 specialty contractors in the Midwest by Engineering News Record and St. Louis’ fifth largest mechanical contractor by the St. Louis Business Journal. For more information, visit www.wiegmannassoc.com or call (636) 940-1056.