| Student Record System | Academic & Science |
| Student Retention System | Academic & Science |
| Simple Random Sample | Academic & Science |
| Shanks Recreational Society | Academic & Science |
| Surgical Research Society | Academic & Science |
| Savannah River Site | Academic & Science |
| Scoliosis Research Society | Academic & Science |
| Single Room Supplement | Academic & Science |
| Sleep Research Society | Academic & Science |
| Student Record Systems | Academic & Science |
| Society of Radiopharmaceutical Sciences | Academic & Science |
| Student Records System | Academic & Science |
| Southern Research Station | Academic & Science |
| San Marcos | Airport Code |
| Staubach Retail Services | Business |
| Shareholder Representative Services, L.L.C. | Business |
| Sr Eur Inv.s | Business |
| ARV Assisted Living, Inc. | Business |
| Swedish Report Service | Business |
| Search Report And Services | Business |
| Strontium Sulfide | Chemistry |
| Strontium Sulphide | Chemistry |
| Spontaneous Radio Song | Community |
| Shanks Recreation Soceity | Community |
| Schools Recommendation Schemes | Community |
| Secure Rural Schools | Community |
| Send Receive Stream | Computing |
| Surround Sound | Computing |
| Setup Resource | Computing |
| Sun Raster File | Computing |
| Shared Registry System | Computing |
| San Replication Services | Computing |
| Speech Recognition System | Computing |
| Survivable Remote Site | Computing |
| Spaced Repetition Software | Computing |
| Software Requirement Specification | Computing |
| Self Recovery System | Computing |
| Site Replication Service | Computing |
| Service Registry Service | Computing |
| Screen Reader System | Computing |
| Seagate Recovery Services | Computing |
| Sender Rewriting Scheme | Computing |
| Shared Retained Secret | Computing |
| Sun Remote Services | Computing |
| Software Reputation System | Computing |
| Skype Room System | Computing |
| Sequence Retrieval System | Computing |
| Single Ring Security | Computing |
| Software Radio Systems | Computing |
| Sample Registration Scheme | Country Specific |
| Semi-conductor Reuse Standard | Electronics |
| Synchronous Reactive System | Electronics |
| Smart Route Systems | General |
| Stark Raving Shapiro | General |
| Silk Road System | General |
| Spoon River Speedway | General |
| Safety Restraint System | General |
| Sydney Retro Speedfest | General |
| System Requirement Specification | General |
| Simple Random Sampling | General |
| Speed Regulation System | General |
| Sibiu Rally Show | General |
| Safety Research and Strategies | General |
| Sanremo Rally Storico | General |
| Specialist Reporting System | General |
| Ssangyong Racing Series | General |
| Sole Replacement System | General |
| Synchronous Reference Sensor | General |
| Spam Rate Setting | General |
| Solar Roof System | General |
| Single Rate Spring | General |
| Speed Release System | General |
| Safty Restraint System | General |
| Seller Representative Specialist | General |
| Substance Registry Services | General |
| Substance Registry System | General |
| Stanford Research Systems | General |
| Supplimental Restraint System | General |
| Simple Rating System | General |
| stimulated Raman scattering | General |
| Supplementary Restraint System | General |
| Secretly Rumbling Stoats | General |
| Supplementary Retirement Scheme | General |
| Sound Retrival System | General |
| Single Ring System | General |
| Super Ram Silhouette | General |
| Special Recon Service | General |
| Supplement Restraint System | General |
| Simple Recursive Split | General |
| Slightly Repetitive Sim | General |
| Stereotactic Radiosurgery and SBRT | General |
| Sounding Reference Signal | General |
| Super Rotation System | General |
| Spaced Repetition System | General |
| Sealed Reflex Sight | General |
| Simple Ranking System | General |
| Summon Raging Spirit | General |
| Simple RTMP Server | General |
| Send Receive Setting | General |
| Skeletal Repair System | General |
| Supplemental Restraint System | General |
| Super Racing System | General |
| Spark Retard Solenoid | General |
| Some Random Schmuck | Governmental |
| Substance Registration System | Governmental |
| Spontaneous Reporting System | Governmental |
| Sample Registration System | Governmental |
| Savannah River System | Governmental |
| Secondary Restraint System | Governmental |
| Sims Recycling Solutions | Governmental |
| Soft Rolling Skin | Medical |
| Sex Reassignment Surgery | Medical |
| Social Rehabilitation Services | Medical |
| Sexual Reassignment Surgery | Medical |
| Sequence Retreival System | Medical |
| Search and Rescue Sector | Military and Defence |
| Signature Reference Series | Military and Defence |
| Software Requirements Specification | Networking |
| Shared Registry Service | Networking |
| San Marcos, Colombia | Regional |
| Southeast Regional Series | Regional |
| Sequence Retrieval Software | Softwares |
| Spyware Removal Software | Softwares |
| Spine Reduction Software | Softwares |
| System Requirements Specification | Space Science |
| Simulated Remote Station | Space Science |
| Specification Revision Sheet | Space Science |
| Support Requirements System | Space Science |
| Simple Roleplaying System | Sports |
| The Spanish Riding Style | Sports |
| Street Racing Syndicate | Sports |
| Sound Retrieval System | Technology General |
| Supported Residential Service | Telecommunication |