Sony Corporation (ソニー株式会社 Sonī Kabushiki-gaisha?) is a Japanese multinational conglomerate corporation and one of the world's largest media conglomerates with revenue of ¥7.730 trillion ($78.877 billion U.S.) during the fiscal year ending March 31, 2009. Sony is one of the leading manufacturers of electronics, video, communications, video game consoles, and information technology products for the consumer and professional markets, which developed the company into one of the world's richest companies.
Sony Corporation is the electronics business unit and the parent company of the Sony Group, which is engaged in business through its five operating segments — electronics, games, entertainment (motion pictures and music), financial services and other. These make Sony one of the most comprehensive entertainment companies in the world. The company's slogan is "make. believe."
Relation to the Metal Gear series
Most of the games in the Metal Gear series have been released exclusively on Sony consoles, such as Metal Gear Solid on the PlayStation, Metal Gear Solid 2: Sons of Liberty and Metal Gear Solid 3: Snake Eater on the PlayStation 2, and Metal Gear Solid 4: Guns of the Patriots for the PlayStation 3.
Most of the portable Metal Gear games have been released exclusively on the PlayStation Portable as well, such as Metal Gear Acid, Metal Gear Acid 2, Metal Gear Solid: Portable Ops and Metal Gear Solid: Peace Walker.