Sankyo Co., Ltd. engages in the manufacture and sale of pachinko and pachislot machines. It operates through the following segments: Pachinko Machines Business, Pachislot Machines Business, Ball Bearing Supply Systems Business, and Others. The Pachinko Machines Business segment produces and sells pachinko machines, machine gauges and its related parts. The Pachislot Machines Business segment markets pachislot machines and related parts. The Ball Bearing Supply Systems segment sells pachinko and pachislot ball feeders, card system equipment, and parlor-related equipment. The Others segment comprises of mobile content service, real estate, golf club operations, and sells general molding products. The company was established on April 12, 1966 and is headquartered in Tokyo, Japan.

Sammy Corp. manufactures and distributes game machines. The firm's products include pachinko, pachislot, arranged-ball, and jankyu machines. The company was founded on November 1, 1975 and is headquartered in Tokyo, Japan.

Universal Entertainment Corp. engages in the development, manufacture and sales of gaming machines. It operates through the following business segments: The Amusement Machine, Integrated Resort (IR) and Others. The Amusement Machine segment conducts research, development, manufacturing and sales of pachislot machines, pachinko machines and peripheral equipment. The IR segment operates casino, hotel, restaurant, retail & leasing, entertainment and real estate development business in the Philippines. The Others segment covers overseas business. The company was founded by Kazuo Okada on December 2, 1969 and is headquartered in Tokyo, Japan.

Part of Daito Hanbai KK, Daito Giken, Inc. is a company headquartered in Tokyo, Japan. The firm manufactures gambling machines (Pachinko).

Olympia Co., Ltd., a subsidiary of Heiwa Corp., is a Japanese company located in Tokyo. The firm manufactures and wholesales pachinko machines. Heiwa Corp. acquired Olympia Co., Ltd. on August 01, 2007 for $220.40 million.

Yamasa Corp. manufactures and supplies soy sauce and seasonings. It processes and supplies soy sauce, seasonings, sauces, dips, and flavorings. The firm also develops pharmaceuticals and biochemicals. The company was founded in 1645 and is headquartered in Choshi, Japan.

Daikoku Denki Co., Ltd. engages in the development, manufacture, and sale of computer systems for pachinko halls and pachislot game machines. It operates through the Information System and Control System segments. The Information System segment offers computer systems, customer premium management systems, and information disclosure systems for pachinko halls. The Control System segment provides display units and control units of pachinko game machines. It also markets pachislot machines and parts for pachinko machines. The company was founded by Shinji Kayamori in September 1965 and is headquartered in Nagoya, Japan.

IGT, a subsidiary of International Game Technology PLC, is an American company that designs, develops, and manufactures microprocessor-based gaming machines and software systems.

Sophia Co. Ltd. is a Japanese private company located in Kiryu. The firm manufactures gambling machines (Pachinko).

Daiichi Shokai develops and produces game machines. Daiichi Shokai offers pachinko machines, slots, and other amusement facilities to game halls.

Aruze Gaming America, Inc. manufactures gaming machines such as reel & video slots, multi-player racing, and roulette. It has operations in Nevada and New Jersey. The company is located in Las Vegas, NV

Ace Denken Co., Ltd. is a Japanese private company located in Tokyo, also operating in Japan, that manufactures slot machines.

KPE Co., Ltd. is a South Korean private company with domestic subsidiaries. The firm engages in manufacture of diodes, transistors and similar semi-conductor devices. It was founded in 1994.

Aristocrat Technologies, Inc. provides gaming solutions. It designs and markets gaming machines, progressive jackpot meters, casino management and progressive systems. The company games include batman, jaws, jackspot streak, tarzan, superman and super feature. Aristocrat Technologies is headquartered in Las Vegas, NV.

Heiwa Corp. engages in the development and sales of pachinko machines and other gaming machines. It operates through the Pachinko and Paschislot Machine Business and Golf Business segments. The Pachinko and Paschislot Machine Business segment develops, manufactures, and sells entertainment equipment such as pachinko machines and slots. The Golf Business segment manages and operates golf courses. The company was founded in 1949 and is headquartered in Tokyo, Japan.

Konami Amusement Co., Ltd. is a Japan-based company established in July 28, 1956. It is involved in game machine operations, prepaid-card related, and healthcare environment businesses. The company has six subsidiaries: Abilit Sales Co., Ltd., Creation Card Co., Ltd., Creation Credit Co., Ltd., Syscom, Inc., Abilit Service Co., Ltd., and UAT Corporation.

SNK Playmore is the company in the sales of video game softwares in America. They have developed games for mobile platforms like iOS and Android.

Universal KK is a private company headquartered in Japan involved in construction machinery and equipment.