Applied Materials, Inc. engages in the provision of manufacturing equipment, services, and software to the semiconductor, display, and related industries. The company operates through three segments: Semiconductor Systems, Applied Global Services, and Display and Adjacent Markets. The Semiconductor Systems segment develops, manufactures, and sells various manufacturing equipment that is used to fabricate semiconductor chips or integrated circuits. This segment also offers various technologies, including epitaxy, ion implantation, oxidation/nitridation, rapid thermal processing, physical vapor deposition, chemical vapor deposition, chemical mechanical planarization, electrochemical deposition, atomic layer deposition, etching, and selective deposition and removal, as well as metrology and inspection tools. The Applied Global Services segment provides integrated solutions to optimize equipment and fab performance and productivity comprising spares, upgrades, services, remanufactured earlier generation equipment, and factory automation software for semiconductor, display, and other products. The Display and Adjacent Markets segment offers products for manufacturing liquid crystal displays; organic light-emitting diodes; and other display technologies for TVs, monitors, laptops, personal computers, electronic tablets, smart phones, and other consumer-oriented devices. It operates in the United States, China, Korea, Taiwan, Japan, Southeast Asia, and Europe. The company was incorporated in 1967 and is headquartered in Santa Clara, California.

Energy Recovery, Inc., together with its subsidiaries, designs, manufactures, and sells energy efficiency technology solutions in the Americas, the Middle East, Africa, Asia, and Europe. The company operates through Water and Emerging Technologies segments. The company offers high and low pressure, and ultra pressure exchangers; AT and LPT hydraulic turbochargers; and high-pressure feed and circulation booster pumps for use in seawater and brackish desalination, and wastewater treatment. It also provides PX G1300, which reduces energy consumption and operating costs of carbon dioxide-based refrigeration systems; and spare parts, as well as repair, field, and commissioning services. It sells its products under the ERI, PX, Pressure Exchanger, PX Pressure Exchanger, Ultra PX, PX G, PX G1300, PX PowerTrain, AT, and Aquabold brands to original equipment manufacturers, supermarket chains, cold storage facilities, refrigeration system installers, and other industrial users; aftermarket customers consisting of desalination plant owners and operators; and project developers, end-users, and industry consultants, as well as engineering, procurement, and construction firms. Energy Recovery, Inc. was incorporated in 1992 and is headquartered in San Leandro, California.

Plug Power Inc. develops hydrogen and fuel cell product solutions in North America, Europe, Asia, and internationally. The company offers GenDrive, a hydrogen-fueled proton exchange membrane (PEM) fuel cell system that provides power to material handling electric vehicles; GenSure, a stationary fuel cell solution that offers modular PEM fuel cell power to support the backup and grid-support power requirements of the telecommunications, transportation, and utility sectors; ProGen, a fuel cell stack and engine technology used in mobility and stationary fuel cell systems, and as engines in electric delivery vans; GenFuel, a liquid hydrogen fueling delivery, generation, storage, and dispensing system; GenCare, an ongoing Internet of Things-based maintenance and on-site service program for GenDrive fuel cell systems, GenSure fuel cell systems, GenFuel hydrogen storage and dispensing products, and ProGen fuel cell engines; and GenKey, an integrated turn-key solution for transitioning to fuel cell power. It also provides electrolyzers, a hydrogen generator for clean hydrogen production; liquefaction systems that provides liquid hydrogen to customers; cryogenic equipment for the distribution of liquified hydrogen, oxygen, argon, nitrogen and other cryogenic gases, including trailers and mobile storage equipment; and liquid hydrogen, an alternative fuel to fossil-based energy. The company sells its products through a direct product sales force, original equipment manufacturers, and dealer networks. Plug Power Inc. was incorporated in 1997 and is headquartered in Latham, New York.

Microvast Holdings, Inc. provides battery technologies for electric vehicles and energy storage solutions. The company offers a range of cell chemistries, such as lithium titanate oxide, lithium iron phosphate, and nickel manganese cobalt version 1 and 2. It also designs, develops, and manufactures battery components, such as cathode, anode, electrolyte, and separator. In addition, the company offers battery solutions for commercial vehicles and energy storage systems. Its commercial vehicle markets cover buses, trains, mining trucks, marine and port vehicles, and automated guided and specialty vehicles, as well as light, medium, heavy-duty trucks. It operates China, rest of the Asia Pacific, Europe, and the United States. Microvast Holdings, Inc. was incorporated in 2006 and is headquartered in Stafford, Texas.

Aspen Aerogels, Inc. designs, develops, manufactures, and sells aerogel insulation products primarily for use in the energy infrastructure and sustainable insulation materials markets in the United States, Asia, Canada, Europe, and Latin America. It operates in two segments, Energy Industrial and Thermal Barrier. The company offers PyroThin thermal barriers for use in lithium-ion batteries in electric vehicles and energy storage industries; Pyrogel XTE that reduces the risk of corrosion under insulation in energy infrastructure operating systems; and Pyrogel HPS for applications within the power generation market. It also offers Pyrogel XTF to provide protection against fire; Cryogel Z for sub-ambient and cryogenic applications in the energy infrastructure market; Spaceloft Subsea for use in pipe-in-pipe applications in offshore oil production; and Cryogel X201, which is used in designing cold systems, such as refrigerated appliances, cold storage equipment, and aerospace systems. The company was founded in 2001 and is headquartered in Northborough, Massachusetts.

Ballard Power Systems Inc. engages in the design, development, manufacture, sale, and service of proton exchange membrane (PEM) fuel cell products. The company offers its products for power product comprising for bus, truck, rail, marine, stationary, and emerging market, such as material handling, off-road, and other applications. It also engages in the delivery of services, including technology solutions, after sales services, and training; and provision of engineering services, product and systems integration services, and related technology transfer for a variety of PEM fuel cell applications. It operates in the United States, Germany, Canada, China, Poland, the United Kingdom, the Netherlands, France, Denmark, Belgium, India, Taiwan, Spain, Norway, Australia, Japan, and internationally. The company has a strategic alliance with Linamar Corporation for the co-development and sale of fuel cell powertrains and components for class 1 and 2 vehicles in North America and Europe. Ballard Power Systems Inc. was founded in 1979 and is headquartered in Burnaby, Canada.

Amprius Technologies, Inc. produces and sells ultra-high energy density lithium-ion batteries for mobility applications. The company offers silicon nanowire anode batteries. Its batteries are primarily used for existing and emerging aviation applications, including unmanned aerial systems, such as drones and high-altitude pseudo satellites. The company was incorporated in 2008 and is headquartered in Fremont, California.

FuelCell Energy, Inc., together with its subsidiaries, manufactures and sells stationary fuel cell and electrolysis platforms that decarbonize power and produce hydrogen. The company provides various configurations and applications of its platform, including on-site power, utility grid support, and microgrid, as well as distributed hydrogen; solid oxide-based electrolysis; solutions for long duration hydrogen-based energy storage and electrolysis technology; and carbon capture, separation, and utilization systems. It also offers technology to produce electricity, heat, hydrogen, and water. In addition, the company provides turn-key solutions, including development, engineering, procurement, construction, interconnection, and operation services. It serves various markets, including utilities and independent power producers, industrial and process applications, education and health care, data centers and communication, wastewater treatment, government, commercial and hospitality, microgrids, manufacturing, industrial hydrogen, port, oil and gas, wind and solar projects, food and beverage, hydrogen for mobility and material handling, and hydrogen fuel for heat, as well as engineering, procurement, and construction firms. The company primarily operates in the United States, South Korea, and Europe. FuelCell Energy, Inc. was founded in 1969 and is headquartered in Danbury, Connecticut.