Microsoft vs TietoEVRY

Microsoft was founded by Bill Gates and Paul Allen on April 4, 1975, to develop and sell BASIC interpreters for Altair 8800. It rose to dominate the personal computer operating system market with MS-DOS in the mid-1980s, followed by Microsoft Windows. The company's 1986 initial public offering, and subsequent rise in its share price, created three billionaires and an estimated 12,000 millionaires from Microsoft employees. Since the 1990s, it has increasingly diversified from the operating system market and has made a number of corporate acquisitions. In May 2011, Microsoft acquired Skype Technologies for $8.5 billion in its largest acquisition to date.

Tieto Oyj is an IT service company providing IT and product engineering services. Active in more than 20 countries with approximately 14,000 employees, Tieto is one of the largest IT service providers in Europe. Tieto is domiciled in Helsinki, Finland, and the company's shares are listed on the NASDAQ OMX Helsinki and Stockholm. The company provides services to the following sectors: financial services; manufacturing, retail & logistics; public, healthcare & welfare; telecom, media and energy.