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Ampco-Pittsburgh Corporation, together with its subsidiaries, engages in manufacture and sale of specialty metal products and customized equipment to commercial and industrial users worldwide. The company operates through Forged and Cast Engineered Products (FCEG); and Air and Liquid Processing (ALP) segments. The FCEG segment produces forged hardened steel rolls, cast rolls and, forged engineered products that are used in cold rolling mills by producers of steel, aluminum, and other metals; cast rolls for hot strip mills, medium/heavy section mills, roughing mills, and plate mills; and forged engineered products for narrow and wide strip and aluminum mills, back-up rolls for narrow strip mills, and leveling rolls and shafts. The ALP segment produces custom-engineered finned tube heat exchange coils and related heat transfer products for various industries, including OEM/commercial, nuclear power generation, and industrial manufacturing; custom-designed air handling systems for institutional, pharmaceutical, and general industrial building markets; and manufacture centrifugal pumps for the fossil fueled power generation, marine defense, and industrial refrigeration industries. Ampco-Pittsburgh Corporation was incorporated in 1929 and is headquartered in Carnegie, Pennsylvania.

Broadwind, Inc. manufactures and sells structures, equipment, and components for clean tech and other specialized applications primarily in the United States. It operates through three segments: Heavy Fabrications, Gearing, and Industrial Solutions. The Heavy Fabrications segment provides fabrications to various industrial markets. It offers steel towers and adapters primarily to wind turbine manufacturers. Its Gearing segment provides gearing, gearboxes, and precision machined components to a range of customers in diverse markets, including surface and underground mining, wind energy, steel, material handling, infrastructure, onshore and offshore oil and gas fracking and drilling, marine, and other industrial markets. This segment also offers heat treat services for aftermarket and original equipment manufacturer applications. The Industrial Solutions segment provides supply chain solutions for offering instrumentation and controls, valve assemblies, sensor devices, fuel system components, electrical junction boxes and wiring, energy storage services, and electromechanical devices; light fabrication, inventory management, and kitting and assembly services; packaging solutions; and supply chain solutions, light fabrication, inventory management, and kitting and assembly services for combined cycle natural gas turbine market. It sells its products to the energy, mining, and infrastructure sectors through its direct sales force and independent sales agents. The company was formerly known as Broadwind Energy, Inc. and changed its name to Broadwind, Inc. in May 2020. Broadwind, Inc. is headquartered in Cicero, Illinois.

Hudson Technologies, Inc., through its subsidiary, Hudson Technologies Company, engages in the provision of solutions to recurring problems within the refrigeration industry in the United States. The company engages in the sale of refrigerant and industrial gas; provision of refrigerant management services consisting primarily of reclamation of refrigerants, re-usable cylinder refurbishment, and hydrostatic testing services; and RefrigerantSide services comprising system decontamination and recovery to remove moisture, oils, and other contaminants. It also offers Chiller Chemistry, which integrates several fluid tests of an operating system and the corresponding laboratory results into an engineering report; Fluid Chemistry, an abbreviated version of Chiller Chemistry, which is designed to quickly identify systems that require further examination; SmartEnergy OPS, a web-based real time continuous monitoring system, for measuring, modifying and improving the efficiency of energy systems, including air conditioning and refrigeration systems, in industrial and commercial applications; and ChillSmart, which combines the system optimization with Chiller Chemistry for providing a snapshot of a packaged chiller's operating efficiency and health. In addition, the company participates in the generation of carbon offset projects. It serves commercial, industrial, and governmental customers, as well as refrigerant wholesalers, distributors, contractors, and refrigeration equipment manufacturers. The company was incorporated in 1991 and is headquartered in Woodcliff Lake, New Jersey.

Paul Mueller Company, together with its subsidiaries, provides manufactured equipment and components in the United States, North America, Asia, the Far East, the Netherlands, EU countries, Europe, and internationally. The company operates through four reportable segments: Dairy Farm Equipment, Industrial Equipment, Field Fabrication, and Transportation. The Dairy Farm Equipment segment offers milk cooling and storage equipment and accessories, refrigeration units, and heat recovery equipment for use on dairy farms to independent dealers for resale, and directly to farmers; and services for farmers, as well as milk coolers for rent to farmers. The Industrial Equipment segment sells food, beverage, chemical, and industrial processing equipment; and biopharmaceutical and pure water equipment, as well as stainless steel, alloy processing, storage tanks, and heat transfer products. The Field Fabrication segment sells large, field-fabricated tanks and vessels, such as stainless steel storage tanks for sanitary and industrial process applications. The Transportation segment offers delivery of products to customers; backhauls of materials and components; and contract carriage for third parties. It serves its products in various industries, including animal health, beverage, brewing, chemical, dairy farm, dairy processing, food, heat transfer, HVAC, industrial construction, oil and gas, personal care, pharmaceutical, pure water, tank fabrication, and wine. The company was founded in 1940 and is headquartered in Springfield, Missouri.