AtmosZero, a US startup, is leading the way in developing electric heat pump boilers to replace traditional steam boilers in commercial and industrial operations. These heat pumps are more energy efficient and cost-effective than conventional heating systems. AtmosZero has partnered with companies like R.F. MacDonald and received a grant from the US Department of Energy to further develop their technology. The company has opened a new manufacturing campus and is rapidly expanding its market reach to help accelerate commercial and industrial decarbonization efforts. Quilt is also making strides in the residential heat pump field, attracting numerous partners and expanding into new markets. SHS has partnered with Quilt to offer software-first climate systems, aligning with the trend towards electrification and energy efficiency in the HVAC industry. Gradient is another US innovator in the heat pump field to watch.