Amazon is an American electronic commerce and cloud computing company with headquarters in Seattle, Washington. It is the largest Internet-based retailer in the United States.

Siemens is a global engineering company focusing on the areas of electrification, automation and digitalization.

Siemens is a global engineering company focusing on the areas of electrification, automation and digitalization.

Ecolab is a global provider of water, hygiene and energy technologies and services to the food, energy, healthcare, industrial and hospitality markets.

Marriott International, Inc. is an American diversified hospitality company that manages and franchises a broad portfolio of hotels and related lodging facilities.

Marriott International, Inc. is an American diversified hospitality company that manages and franchises a broad portfolio of hotels and related lodging facilities.

Marriott International, Inc. is an American diversified hospitality company that manages and franchises a broad portfolio of hotels and related lodging facilities.

Marriott International, Inc. is an American diversified hospitality company that manages and franchises a broad portfolio of hotels and related lodging facilities.

The L'Oreal Group is a French cosmetics and beauty company, headquartered in Clichy, Hauts-de-Seine. It is the world's largest cosmetics company.

Dell Inc. is an information technology company that provides a range of technology solutions worldwide. Dell is now a private company.