What big app development companies are there?

IBM, Oracle Bone Inscriptions, Microsoft, Accenture, SAP, Hewlett-Packard, Yahoo, CA Technologies, Symantec, Capgemini. Capgemini ranks among the top three in the world in professional services. It is not only listed on the Paris Stock Exchange, but also listed on famous indexes such as Dow Jones Index and Dow Jones Europe Index.

Capgemini is one of the world's most famous providers of management consulting, technology and outsourcing services. Among them, consulting service, technical service and outsourcing service are three core businesses of Capgemini.

Microsoft profile

Microsoft is a multinational technology company in the United States and a global leader in personal computer software development. Microsoft was founded by Bill Gates and paul allen in 1975, focusing on R&D, manufacturing, licensing and providing a wide range of computer software services. The most famous and best-selling products are Microsoft Windows operating system and Microsoft Office series software, which is the largest computer software supplier in the world.

Bill Gates and paul allen, the co-founders and leaders of Microsoft, are regarded as talented people in the world. Among them, paul allen's IQ is over 220, ranking ninth among the world's geniuses.

At school, Bill Gates made outstanding achievements in mathematics. He once solved a world problem and was awarded by Professor Harvard, an academician of the American Academy of Sciences. Bill Gates once published a paper jointly with his teacher.