| | | | | |
| Subsidiary | Jurisdiction of Formation |
| Acklands - Grainger Inc. | Canada |
| Apex Industrial Limited | Scotland |
| Bogle and Timms Limited | United Kingdom |
| C.J. Bent & Son Limited | United Kingdom |
| Cromwell Czech Republic s.r.o. | Czechia |
| Cromwell Group (Holdings) Limited | United Kingdom |
| Cromwell Group (Holdings) Limited (Branch) | United Kingdom |
| Cromwell Group (International) Limited | United Kingdom |
| Cromwell Industrial Supplies Private Limited | India |
| Cromwell Sp. z. o. o | Poland |
| Cromwell Tools (Thailand) Co. Ltd. | Thailand |
| Cromwell Tools Limited | United Kingdom |
| Cromwell Tools Limited Magyarországi Fióktelepe | United Kingdom |
| Cromwell Tools Sdn. Bhd | Malaysia |
| Dayton Electric Manufacturing Co. | Illinois |
| Gamut Supply LLC | Delaware |
| GHC Specialty Brands, LLC | Wisconsin |
| GMMI LLC | Delaware |
| Grainger Canada Holdings ULC | AB, Canada |
| Grainger Caribe, Inc. | Illinois |
| Grainger Colombia Holding Company, LLC | Delaware |
| Grainger Corporate Services LLC | Illinois |
| Grainger Global Holdings, Inc. | Delaware |
| Grainger Global Online Business Ltd. | United Kingdom |
| Grainger Global Trading (Shanghai) Co., Ltd First Branch | China |
| Grainger Global Trading (Shanghai) Co., Ltd. | China |
| Grainger Guam L.L.C. | Guam |
| Grainger HK Limited | China |
| Grainger Industrial Supply India Private Limited | India |
| Grainger International Holdings B.V. | Netherlands |
| Grainger International, Inc. | Illinois |
| Grainger Management LLC | Illinois |
| Grainger Mexico LLC | Delaware |
| Grainger Panama Services S. de R.L. | Panama |
| Grainger Procurement Company LLC | Illinois |
| Grainger Registry Services, LLC | Delaware |
| Grainger Service Holding Company, Inc. | Delaware |
| Grainger Services International Inc. | Illinois |
| Grainger Singapore Pte. Ltd. | Singapore |
| Grainger, S.A. de C.V. | Mexico |