| Rank | Abbreviation | Meaning |
|---|
| ***** | HWCS | Harpoon Weapon Control System
| |
| **** | HWCS | Heavy Weight Container Surcharge
| |
| **** | HWCS | Health, Wellness and Counseling Services
| |
| **** | HWCS | Humana Workers Compensation Services
| |
| **** | HWCS | Halo Wars Community Site
| |
| **** | HWCS | Housing with Care and Support
| |
| *** | HWCS | Helicopter Wire Cutter System
| |
| ** | HWCS | Harmony Wireless Communication System
| |
| ** | HWCS | Harrow Way Community School
| |
| ** | HWCS | Hydrogen Water Chemistry System
| |
| ** | HWCS | Head of Women and Children S
| |
| ** | HWCS | Hannah Watrous Continuity Strategies
| |
| ** | HWCS | Hazardous Waste Cleanup Section
| |
| * | HWCS | Hazardous Waste Compliance Section
| |
| * | HWCS | High Wycombe Choral Society
| |
| * | HWCS | Huanan Wire Cable Services
| |
| * | HWCS | Host Writable Control Store
| |
| * | HWCS | Horizontal Well Cyclic Steam
| |
| * | HWCS | Hazardous Waste Combustors
| |
| * | HWCS | Health at Work the Corporate Standard
| |
| * | HWCS | Hagler Wisely Carter and Steele
| |