| Rank | Abbreviation | Meaning |
|---|
| ***** | NWSG | National Weather Service Grid
| |
| **** | NWSG | Native Warm-Season Grasses
| |
| *** | NWSG | Nuclear Weapons Security Group
| |
| *** | NWSG | North West Shelf Gas Pty Ltd.
| |
| *** | NWSG | Northern Way Steering Group
| |
| *** | NWSG | North West Security Guards Ltd
| |
| *** | NWSG | North-West South Georgia
| |
| *** | NWSG | Navy Women's Study Group
| |
| *** | NWSG | Netzwerk Stadtgewässer
| |
| *** | NWSG | National Weather Sensor Grid
| |
| ** | NWSG | Nuclear Warfare Status Group
| |
| * | NWSG | Northwest Screenwriters Guild
| |
| * | NWSG | New Worker Supporters Group
| |
| * | NWSG | National Wood Society of Gabon
| |
| * | NWSG | North West Switchgear
| |
| * | NWSG | National Water Supply GIS
| |
| * | NWSG | Northwest Solar Group
| |
| * | NWSG | Naperville Women's Social Group
| |
| * | NWSG | Nanjing Water Services Group
| |
| * | NWSG | National Working Stakeholder Group
| |
| * | NWSG | Nationwide Search Group, LLC
| |
| * | NWSG | Nonwovens Systems Group
| |
| * | NWSG | Northwest Senior Games
| |