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Johnson Controls manufactures, installs, and services HVAC systems, building management systems and controls, industrial refrigeration units, and fire and security solutions. Commercial HVAC accounts for over 45% of sales, fire and security represents roughly 40% of sales, and residential HVAC, industrial refrigeration, and other solutions account for the remaining 15% of revenue. In fiscal 2023, Johnson Controls generated nearly $27 billion in revenue.

Lennox International manufactures and distributes heating, ventilating, air conditioning, and refrigeration products to replacement (75% of sales) and new construction (25% of sales) markets. In fiscal 2023, residential HVAC was 68% of sales and commercial HVAC and Heatcraft refrigeration was 32% of sales. The company goes to market with multiple brands, but Lennox is the company’s flagship HVAC brand. The Texas-based company is focused on North America after the sale of its European HVAC and refrigeration businesses in late 2023.

Wesco International is an industrial distributor that has three reportable segments, electrical and electronic solutions, communications and security solutions, and utility and broadband solutions. The company offers more than 1.5 million products to its 140,000 active customers through a distribution network of 800 branches, warehouses, and sales offices, including 43 distribution centers. Wesco generates approximately 74% of its sales in the United States, but it has a global reach, with operations in 50 other countries.

Bloom Energy designs, manufactures, sells, and installs solid-oxide fuel cell systems ("Energy Servers") for on-site power generation. Bloom Energy Servers are fuel-flexible and can use natural gas, biogas, and hydrogen to create 24/7 electricity for stationary applications. In 2021, the company announced plans to leverage its technology and enter the electrolyzer market. Bloom primarily sells its systems in the United States and South Korea.