[2][3][4] The company operates within four markets: heating, ventilation, and air conditioning (HVAC), detection and measurement, power transmission and generation, and engineered solutions.

[2][3][4][5][6] Examples of SPX’s products include cooling towers and boilers, underground pipe and cable locators, power transformers, and heat exchangers.

[4] SPX was founded on December 20, 1911 in Muskegon, Michigan, as the Piston Ring Company by Charles E. Johnson and Paul R.

Churchill Group of Daventry, England, was also acquired, giving Sealed Power an international overseas presence.

[8] In 2012, SPX president Charles E Johnson II sold its Service Solutions business for approximately $1.15 billion to Robert Bosch GmbH.

[18][19] In December of that year, SPX announced that it would also acquire the marine and aviation warning-light corporation Carmanah Technologies.

Sensors & Software Inc. is an Ontario-based manufacturer and distributor of Ground Penetrating Radar (GPR) products used for geotechnical and geological investigations, unexploded ordnance detection, and locating underground utilities.

[25] In February 2024, SPX expanded its Heating Ventilation and Air-Conditioning business by acquiring, Ingenia Technologies,[26] a Canadian manufacturer of custom commercial air handling units, headquartered in Mirabel, Quebec.