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Microsoft Corporation (, abbreviated as MS) is an American multinational technology company with headquarters in Redmond, Washington. It develops, manufactures, licenses, supports and sells computer software, consumer electronics, personal computers, and related services. Its best known software products are the Microsoft Windows line of operating systems, the Microsoft Office suite, and the Internet Explorer and Edge web browsers.

LinkedIn is an American business and employment-oriented service that operates via websites and mobile apps. Founded on December 28, 2002, and launched on May 5, 2003, it is mainly used for professional networking, including employers posting jobs and job seekers posting their CVs.

International Business Machines Corporation (IBM) is an American multinational information technology company headquartered in Armonk, New York, United States, with operations in over 170 countries. The company began in 1911 as the Computing-Tabulating-Recording Company (CTR) and was renamed "International Business Machines" in 1924. IBM manufactures and markets computer hardware, middleware and software, and provides hosting and consulting services in areas ranging from mainframe computers to nanotechnology.

Alphabet is a multinational conglomerate that serves as the parent company of Google and several other subsidiaries. It was created in 2015 as a restructuring of Google, with the goal of making the various parts of the company more manageable and allowing them to operate more independently. The company is led by CEO Sundar Pichai and is headquartered in Mountain View, California.

Sony Corporation is a Japanese multinational conglomerate corporation headquartered in Kōnan, Minato, Tokyo. Its diversified business includes consumer and professional electronics, gaming, entertainment and financial services.

Motorola Solutions, Inc. is an American data communications and telecommunications equipment provider that succeeded Motorola, Inc., following the spinoff of the mobile phone division into Motorola Mobility in 2011. The company is headquartered in Chicago, Illinois.