Minolta Co., Ltd. (ミノルタ Minoruta) was a Japanese manufacturer of cameras, camera accessories, photocopiers, fax machines, and laser printers. Minolta was founded in Osaka, Japan, in 1928 as Nichi-Doku Shashinki Shōten (日独写真機商店, meaning Japanese-German camera shop). It is perhaps best known for making the first integrated autofocus 35 mm SLR camera system. In 1931, the company adopted its current name, an acronym for "Mechanism, Instruments, Optics, and Lenses by Tashima". In 1933, the brand name first appeared on a camera, a copy of the Plaubel Makina simply called "Minolta".

Chengdu Jindu Chaoxing Astronomical Equipment Co., Ltd., established on 2006-08-03, The business scope includes astronomical instruments,optics,Production of mechatronic equipment,Sales,install service;General cargo;Import and export of goods and technology.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments).

Carl Zeiss Jena GmbH engages in the design, prototyping, batch production, and testing of optical systems, single components, and auxiliary materials. It also provides services such as calibration, sampling of injection-molded and machined parts, hardness testing, heat treatment of materials, electromagnetic compatibility testing, and environmental simulation. The company is headquartered in Jena, Germany.

Learning Technologies provides training, human resource consulting, and leadership services.

Erlas Erlanger Lasertechnik GmbH is a private company headquartered in Erlangen, Germany. The firm engages in precise machining and processing of metallic materials. It was founded in 1998. Martin Hoffmann and Peter Hoffmann are the current co-CEOs of the company.\nThe company says this about itself: ERLAS is one of the leading high-tech companies in the field of precise machining and processing of metallic materials by means of laser beam. Subsequently these materials can be processed to complete assemblies.

National Applied Research Laboratories is a Taiwanese private company located in Taipei with domestic subsidiaries. The firm operates research centers for science and technology.

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.

NEC Home Electronics Ltd. was engaged in the sale of maintenance parts such as electronic parts and consumables. The company was founded in June 1953 and was headquartered in Tokyo, Japan.

Astro-Tec Manufacturing manufactures fabricated structural metal, steel, or other metal products for structural purposes. They also design and construct flight simulators, specialised projection screens, multi-media theaters, and observatory domes. They developed an unparalleled process designed to transform a dome into a totally renewed surface.

Hefei Dongshang Multimedia Technology Co., Ltd., established on 2008-01-17, Business scope includes computer software and hardware research and development and sales;system integration;Website building;Internet information consultation;science Museum,museum,Science Museum,Exhibition content planning and exhibition design for various theme pavilions;High-tech,digital media,simulation interaction,Research and development of popular science and animation exhibits and game development;Exhibition engineering design;Animation Advertising and Animation Production.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Goto Optical Manufacturing Co. is a Japanese private company located in Fuchu. The firm manufactures optical instrument.

Nantong Schmidt Opto-Electrical Technology Co. Ltd. is a Chinese private company located in Nantong that wholesales binoculars, monocular and other optical telescopes.

Mitsubishi Electric Corp. engages in the manufacture, development, and sale of electric and electronic equipment. It operates in the following business segments: Energy and Electric Systems, Industrial Automation Systems, Information and Communication Systems, Electronic Devices, Home Appliances, and Others. The Energy and Electric Systems segment offers power and transportation systems, elevators, escalators, and supervisory control systems. The Industrial Automation Systems segment covers industrial automation products and systems, measurement and control systems, automotive and electronic products, and car multimedia systems. The Information and Communication Systems segment includes wireless, closed circuit television, space, and satellite communication systems, antennas, radar devices, and information communications network systems. The Electronic Devices segment provides power, high frequency, and optical devices; and liquid crystal displays. The Home Appliances segment covers air-conditioning and photovoltaic power generation systems, televisions, recorders, and players. The Others segment comprises of material procurement, logistics, real estate, advertising, and financial services. The company was founded on January 15, 1921 and is headquartered in Tokyo, Japan.

Wuxi Seemel Technology Co., Ltd., established on 2010-02-01, Business scope includes digital dome display system,Multimedia products and components,Optoelectronic display products,Laser light source,laser,rear projection tv,Large screen splicing wall,front projector,projection screen,Development of laser projectors,design;Models and teaching aids for teaching,Teaching equipment,Optical glass,Research and development of mirrors and similar products,design,manufacture,processing,Sales and technical service;Slideshow and projection equipment,TV set,film machinery,Video recording equipment,Optoelectronic devices and other electronic devices,Amusement and indoor amusement equipment,lighting fixtures,Manufacturing of Optical Instruments,processing,Sales and technical service;Radio and television program production;software development;Information system integration service,Math Content Services;Recreation and Sports Equipment Rental,Other machinery and equipment rental(Excluding finance lease);Self-operated and agent import and export business of various commodities and technologies(Except for commodities and technologies that the state restricts enterprises to operate or prohibits import and export).(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Hefei Mengka Home Furnishing Co., Ltd., established on 2013-03-19, Business scope includes general items:Household Goods Sales;furniture sales;Sales of furniture spare parts;Sales of building materials;Sales of building waterproof membrane products;Hardware retail;Daily necessities sales;internet sales(Except for products that require a license for sale);Sales of entertainment products and indoor amusement equipment;Sporting Goods and Equipment Retailing;Cosmetics Retail;Hair Accessories Sales(Except for licensed business,Can independently operate projects that are not prohibited or restricted by laws and regulations)

Rikei Corp. engages in the sale and supply of information and communication technology (ICT) products. It operates through the following segments: System Solutions, Network Solutions, and Electronic Components. The System Solutions segment manages the sale of 3D mechanical CAD software, Electronic Customer Relationship Management (ECRM) software and related software. The Network Solutions segment handles the sale of high-speed internet access system, satellite communication information transmission system, and the emergency communicator network of J-ALERT in the local government use. The Electronic Components segment manages the sale of information terminal for semiconductors, LCD, industrial terminal for touch panel, and related instruments for the Ministry of Defense use. The company was founded by Chuzo Ishikawa on June 8, 1957 and is headquartered in Tokyo, Japan.

Evans & Sutherland Computer Corp. engages in the development of computer graphics technologies. Its products are used in full-dome video projection applications, dome projection screens, dome architectural treatments, and content for planetariums, schools, science centers, other educational institutions, and entertainment venues. The company was founded by David C. Evans and Ivan Sutherland on May 10, 1968 and is headquartered in Salt Lake City, UT.

Yamato Kogyo Co., Ltd. engages in the management and support of its group of companies that manufacture and distribute steel, railroad track components, and industrial materials. It operates through the following business segments: Steel (Japan), Steel (South Korea), Steel (Thailand), Railway Track Accessories, and Others. The Steel (Japan) segment produces and supplies H-steel, channel steel, I-Steel, steel sheet pile, striped H-steel, steel and can for shipbuilding, elevator guide rail, cast steel products, and heavy industrial machineries. The Steel (South Korea) segment offers steal bars. The Steel (Thailand) segment manufactures H-steel, I-steel, channel steel, and steel sheet pile products. The Railway Track Accessories segment processes and markets turnouts, elastic joints, new crossings, adhesive insulated rails, derailment prevention guards, tie plates, and bolts. The Others segment includes transportation, medical waste treatment, and real estate businesses. The company was founded on November 8, 1944 and is headquartered in Himeji, Japan.