| Abbreviation | Definition |
|---|---|
| SPEAG | Schmid Partner Engineering AG |
| SPEAG | Schmid & Partner Engineering AG |
| SPEC | Solids Processing Equipment Company |
| SPEC | Standard Performance Evaluation Corporation |
| SPEC | Stratton Park Engineering Company |
| SPEC | Susie Paul Equipment Company |
| SPEC | System Performance Evaluation Corporation |
| SPEC | Systems Processes Engineering Corporation |
| SPECS | Standard Performance Evaluation Corporation SPEC |
| SPECS | Store Planning Equipment Construction Services |
| SPFA | Single Parent Family Association Inc. (Baulkham Hills, New South Wales, Australia) |
| SPFC | South Pacific Financial Corporation |
| SPFC | St Paul Fishing Company |
| SPFL | Sofia Property Fund Ltd |
| SPG | Superior Pack Group |
| SPGI | Spar Performance Group Inc |
| SPGL | Spectrum Power Generation Ltd |
| SPGNW | Solo Practitioners Group North West |
| SPH | Stock Processing and Handling (SPH Europe plc) |
| SPHC | Southern Pacific Hotel Corporation |