[6] The company now serves more than 4.5 million customers worldwide[4] with offerings such as motors, lighting, material handling, fasteners, plumbing, tools, and safety supplies, along with inventory management services and technical support.

Grainger serves its customers through a network of approximately 331 branches, online channels (such as Grainger.com, KeepStock and eProcurement), and 34 distribution facilities.

[7] Sales in the early days were generated primarily through mail order via post cards and a catalog.

[8] Grainger is a profitable corporation and has increased dividends to its shareholders for forty five consecutive years.

[13] As orders for personal protective equipment (PPE) increased, Grainger and other re-sellers were hit with supply drops and price hikes.

[14][15] In March 2020, Grainger was sent a letter from the Wisconsin Department of Agriculture, Trade and Consumer Protection accusing them of price gouging.