Osaka Gas Co., Ltd. engages in the provision of natural gas. It operates through the following segments: Domestic Energy/Gas, Domestic Energy/Electricity, Overseas Energy, and Life and Business Solutions. The Domestic Energy/Gas segment manufactures, supplies, and sells city gas, gas appliances, liquefied natural gas, liquefied petroleum gas, and industrial gas. The Domestic Energy/Electricity segment produces electricity. The Overseas Energy develops and invests in natural gas and petroleum as well as leases transport tankers. The Life and Business Solutions segment conducts the development and leasing of real estate, information processing services, and sale of fine materials and carbon products. The company was founded on April 10, 1897 and is headquartered in Osaka, Japan.

FUJITA Co., Ltd. buys and sells secondhand medical equipment. It also sells brand new medical equipment. Its products include ultrasound, endoscope, angio, laser and ophthalmic equipment, X-ray, computed tomography (CT), and magnetic resonance imaging (MRI). The company was founded on July 12, 2006 and is headquartered in Tokyo, Japan.

Eco Factory KK is a holding company that manufactures and supplies thermo systems. It develops and markets radiant heating and cooling equipment. The firm also conducts research, development, and sale of equipment that use natural energy. It also offers after sales maintenance and services. The company was founded on April 12, 1996 and is headquartered in Kumamoto, Japan.

Inter Central, Inc., part of Otec Corp., is a company headquartered in Iwate-gun, Japan. The firm manufactures and distributes electric heaters. It was founded in 1974. Otec Corp. acquired Inter Central, Inc. from Asahi Holdings, Inc. on March 31, 2021 for $33.47 million.

Ningbo Ruiling New Energy Technology Co., Ltd., established on 2017-08-04, Business scope includes new energy,Technology development and technology transfer of new materials;Radiant Cooling Technology,cooling material,Cooling film,Research and development of cooling coatings;Application of Radiation Refrigeration Technology;cooling material,Cooling film,Cooling products(Removing Hazardous Chemicals and Monitoring Chemicals)production,Sales;Sales of cooling water-based paint;Radiant cooling engineering application and service;Self-operated and agent import and export business of various commodities and technologies,However, the state restricts the company to operate or prohibits the import and export of commodities and technologies, and other laws and regulations,regulations,Projects that are not prohibited or do not require operating permits and projects that are not included in the negative list of local industrial development in the decision of the State Council.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Operations as non classifiable establishments

Part of Annygroup, KFT KK is a Japanese company located in Fukuoka that manufactures and distributes heating and cooling equipment; operates a chain of spas.

Linde provides dry ice, gas equipment, and welding equipment. They provide products for metal fabrication, virtual shopping, healthcare, laboratories, electronics, and e-business. They also provide welding, cutting, automation, gas supply modes, and productivity enhancements.

Kyung Dong Navien Co., Ltd. engages in the manufacture and sale of heating, ventilation, and air conditioning products. It produces and sells hot water and heating equipment, air conditioning and climate control system, and home network and zone control system. The company was founded on November 13, 1978 and is headquartered in Pyeongtaek-si, South Korea.

Combustion Engineering, Inc. is a steam boiler manufacturer and maintenance contractor. The company was registered in 1955 and is headquartered in Norwalk, CT.

Carl Zeiss AG (German: [kaʁl tsaɪs]), branded as ZEISS, is a German manufacturer of optical systems and optoelectronics, founded in Jena, Germany in 1846 by optician Carl Zeiss. Together with Ernst Abbe (joined 1866) and Otto Schott (joined 1884) he laid the foundation for today's multi-national company. The current company emerged from a reunification of Carl Zeiss companies in East and West Germany with a consolidation phase in the 1990s. ZEISS is active in four business segments with approximately equal revenue, Industrial Quality and Research, Medical Technology, Consumer Markets and Semiconductor Manufacturing Technology in almost 50 countries, has 30 production sites and around 25 development sites worldwide.

Xinao Technology Development Co., Ltd. is a Chinese company located in Langfang. The firm provides technology development services. It was founded in 2006.

AUDI AG engages in the development, production and sale of cars. It operates through the Automotive, and Motorcycles segments. The Automotive segment encompasses the development, production, assembly and distribution of vehicles of the Audi and Lamborghini brands, and the distribution of vehicles of other Volkswagen Group brands as well as the accompanying accessories and spare parts business. The Motorcycles segment covers the development, production, assembly, and distribution of Ducati brand motorcycles, including the accessories and spare parts business. The company was founded by August Horch on July 16, 1909 and is headquartered in Ingolstadt, Germany.

Tokyo Electron Ltd. engages in the development, manufacture, and sale of semiconductor production equipment and industrial electronics products for flat panel display manufacturing equipment. It operates through the following segments: Semiconductor Production Equipment (SPE), Flat Panel Display (FPD) Production Equipment and Others. The SPE segment handles the development, manufacture, service, and distribution of coaters/developers, plasma etch systems, thermal processing systems, single wafer deposition systems, cleaning systems, wafer probers, and other semiconductor production equipment. The FPD Production Equipment segment manufactures coater/developer for manufacturing flat panel display and Plasma etching/ashing device. The Others segment includes logistics, facilities management, and insurance businesses. The company was founded in November 11, 1963 and is headquartered in Tokyo, Japan.

Ningbo Ruiling New Energy Materials Research Institute Co., Ltd., established on 2019-12-02, Business scope includes research and development of new materials for radiant refrigeration;Research and Experimental Development of Radiant Refrigeration Engineering and Technology;Technology research and development and engineering application of photothermal materials;Energy-saving technology promotion service;Planning of energy-saving and environmental protection radiant refrigeration exchange activities and other activities according to the law,regulations,Projects that are not prohibited or do not require operating permits and projects that are not included in the negative list of local industrial development in the decision of the State Council.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Takenaka Corp. provides general construction, contracting, and engineering services. It offers services across the spectrum of space creation from site location and planning to design and construction, as well as post completion services. The firm operates through the construction, development, and other segments. The company was founded in 1610 and is headquartered in Osaka, Japan.