| Abbreviation | Definition |
|---|---|
| SPU | Seattle Public Utilities |
| SPVRC | SouthPaws Veterinary Referral Center |
| SPW | Schroeder Publishing and Wargames |
| SPX | Kentrox Soneplex |
| SPZP | Saint Peter's Zion Project (part of: RAINBOW COMMUNITY ORGANIZATION, INC) |
| SQ | Supplier Questionaire |
| SQE | Stock Quotes Express |
| SQES | SprintQuest Energy Services |
| SQF | Saucier Quail Farm |
| SQH | Sound Quality Homes |
| SQP | Steve Quesenbury Prosthetics |
| SQTS | Swiss Quality Testing Services |
| SQV | Saquinavir |
| SQW | Silver Queen West Condominiums |
| SR | Sears Roebuck & Company |
| SR | Skywalker Ranch |
| SR | Southern Racing |
| SR | Stair and Reynolds |
| SRA | Safety Risk Assessment |
| SRA | Science Research Associates |