| Abbreviation | Definition |
|---|---|
| MSII | Mission Safety International, Inc. |
| MSIL | Maruti Suzuki India Ltd |
| MSIL | Minda Stoneridge Instruments Ltd |
| MSIL | Minda Stoneridge Instuments Ltd |
| MSIL | Moore Stephens International Ltd |
| MSIL | Mysore Sales International Ltd |
| MSIS | Main Street Internet Service |
| MSIS | Morris Sallick Industrial Supplies, Inc. |
| MSIS | Mountain State Information Systems |
| MSIU | Master Spirit International of USA, Inc. |
| MSL | Marks Spencer Lingerie |
| MSL | Merino Services Limited |
| MSLC | Mutual Sunset Lamp Company |
| MSLO | Martha Stewart Living Omnimedia |
| MSLR | Manchester Sheffield and Lincolnshire Railway |
| MSM | Main Stream Media |
| MSM | Miami Sound Machine |
| MSN | Medical Staffing Network |
| MSNA | Manufacturing Solutions of North Alabama |
| MSNA | Moore Stephens North America |