| Microsoft Corporation | Learn more | .azure | |
| Monster Worldwide, Inc. | Learn more | .beknown | |
| Microsoft Corporation | Learn more | .bing | |
| MiTek USA, Inc. | Learn more | .connectors | |
| MultiChoice Africa (Proprietary) Limited | Learn more | .dstv | |
| Merck KGaA | Learn more | .emerck | |
| Metaregistrar B.V. | Learn more | .frl | |
| MultiChoice Africa (Proprietary) Limited | Learn more | .gotv | |
| Microsoft Corporation | Learn more | .hotmail | |
| Matrix IP LLC | Learn more | .jmp | |
| Macys, Inc. | Learn more | .macys | |
| Mutuelle Assurance Instituteur France (MAIF) | Learn more | .maif | |
| Marriott Worldwide Corporation | Learn more | .marriott | |
| Mattel Sites, Inc. | Learn more | .mattel | |
| McDonalds Corporation | Learn more | .mcd | |
| McDonalds Corporation | Learn more | .mcdonalds | |
| McKinsey Holdings, Inc. | Learn more | .mckinsey | |
| Merck Registry Holdings, Inc. | Learn more | .merck | |
| MSD Registry Holdings, Inc. | Learn more | .merckmsd | |
| MetLife Services and Solutions, LLC | Learn more | .metlife | |
| Microsoft Corporation | Learn more | .microsoft | |
| Myriad International Holdings B.V. | Learn more | .mih | |
| Massachusetts Institute of Technology | Learn more | .mit | |
| Mitsubishi Corporation | Learn more | .mitsubishi | |
| MMA IARD | Learn more | .mma | |
| Monash University | Learn more | .monash | |
| Monster Worldwide, Inc. or Monster, Inc. | Learn more | .monster | |
| MSD Registry Holdings, Inc. | Learn more | .msd | |
| MTN Dubai Limited | Learn more | .mtn | |
| Mitsubishi Tanabe Pharma Corporation | Learn more | .mtpc | |
| MTR Corporation Limited | Learn more | .mtr | |
| MultiChoice Africa (Proprietary) Limited | Learn more | .multichoice | |
| MIH PayU B.V. | Learn more | .payu | |
| Microsoft Corporation | Learn more | .skype | |
| Microsoft Corporation | Learn more | .windows | |
| Microsoft Corporation | Learn more | .xbox | |
