Amazon.com serves consumers through its online and physical stores. The company also manufactures and sells electronic devices, including Kindle, Fire tablet, Fire TV, Echo, and Ring, and the company develops and produces media content. The company operates customer service centers and provides programs that enable sellers to grow their businesses, sell their products in its stores, and fulfill orders through the company The company serves developers and enterprises of various sizes, including start-ups, government agencies, and academic institutions, through its Amazon Web Services segment, which provides a set of global compute, storage, database, and other service offerings. The company also provides services, such as advertising.

The Home Depot is a home improvement retailer. The company provides its customers an assortment of building materials, home improvement products, lawn and garden products, and decor products and provides a number of services, including home improvement installation services and tool and equipment rental. The company also maintains a network of distribution and fulfillment centers, as well as a number of e-commerce websites. The company provides a number of programs for its Professional Customers to meet their particular needs, and for its Do-It-Yourself and Do-It-For-Me customers, the company provides a number of installation services. The company also provides tool and equipment rentals for its customers.

Pfizer is a research-based biopharmaceutical company. The company is engaged in discovering, developing, manufacturing and distributing of healthcare products, including medicines and vaccines. The company manages its commercial operations through three businesses: Pfizer Biopharmaceuticals Group, which includes Oncology, Inflammation and Immunology, Rare Disease, Hospital, Vaccines and Internal Medicine business units, as well as a hospital business unit; Upjohn, which includes the company's solid oral dose brands such as Lyrica, Lipitor, Norvasc, Celebrex, Viagra, and certain generic medicines; and Consumer Healthcare, which is an over-the-counter medicines business.