| Stochastic Process Algebra | Academic & Science |
| Slot Plane Antenna | Academic & Science |
| School of Public Affairs | Academic & Science |
| Schools of Planning and Architecture | Academic & Science |
| School of Physics and Astronomy | Academic & Science |
| Students Personal Advisor | Academic & Science |
| School of Planning and Architecture, New Delhi | Academic & Science |
| St Paul Academy | Academic & Science |
| Sociedad Panameña de Anestesiología | Academic & Science |
| Singapore Physiotherapy Association | Academic & Science |
| Society of Practising Accountants | Accounts and Finance |
| Spartanburg (sc) | Airport Code |
| Summer Performing Arts Company | Arts |
| Society for Popular Astronomy | Associations & Organizations |
| Sudanese Professionals Association | Associations & Organizations |
| Scottish Publishers Association | Associations & Organizations |
| Screen Producers Australia | Associations & Organizations |
| Sony Pictures Animation | Business |
| Società Piemontese Automobili | Business |
| 1Spatial, P.L.C. | Business |
| Scan, Predict, and Act | Business |
| Single Point of Accountbility | Business |
| Sales and Purchase Analysis | Business |
| Sale and Purchase Agreement | Business |
| Sales and Purchase Agreement | Business |
| Sparton Corporation | Business |
| The Student Personnel Association | Business |
| Sociedad Panameña de Anestesiología | Business |
| Sole Placing Agency | Business |
| Standardization Process Assurance | Business |
| Salus Per Aqua | Business |
| Special Power Authorization | Business |
| Saudi Press Agency | Business |
| Societ Per Azioni | Business |
| Software Publishing Association | Business |
| Southern Precision Armory | Business |
| Subaru Protection Agency | Business |
| Senior Pattern Association | Business |
| Share Purchase Agreement | Business |
| Single Point Accountable | Business Management |
| Sound And Public Address | Community |
| Specialty Professional Association | Community |
| Shree Prajapati Association | Community |
| Societa Per Azione | Community |
| Société Protectrice des Animaux | Community |
| Summer Performing Arts | Community |
| Special Projects Application | Community |
| Spartan Parents Association | Community |
| Science Practical Assessment | Community |
| Southgate Parents Association | Community |
| Science Practical Assesment | Community |
| Scripture Principle Application | Community |
| Spiritual And Personal Adjustments | Community |
| Spiritual And Practical Answers | Community |
| School of Public Administration | Community |
| Service Provider Access | Computer and Networking |
| Stop When Pizza Arrives | Computer Assembly Language |
| Simple Power Analysis | Computing |
| Software Publishers Association | Computing |
| Secure Password Authentication | Computing |
| Systems and Procedures Association | Computing |
| Service Processor Accessory | Computing |
| Scratchpad Area | Computing |
| Smart Pixel Array | Computing |
| Shared Port Adapter | Computing |
| Security Posture Assessment | Computing |
| Secure Perimeter Architecture | Computing |
| Secure Print Advantage | Computing |
| Sql Performance Analyzer | Computing |
| Storage Pool Authority | Computing |
| Symantec Protection Agent | Computing |
| Smart Process Application | Computing |
| System Physical Address | Computing |
| Spartacus | Cryptocurrency |
| Sperax | Cryptocurrency |
| Sonic Pocket Adventure | General |
| Spam Protection Agency | General |
| Self Propelled Adrenaline | General |
| Solus Per Aqua | General |
| Special Projects Administration | General |
| Strategic Partnership Agreement | General |
| Shared Port Adaptor | General |
| Single Page Applications | General |
| Sanum per Aqua | General |
| Sante Per Aqua | General |
| Sustainability Performance Assessment | General |
| Sponsored Programs Administration | General |
| Special Protection Area | General |
| Service Provision Assessments | General |
| Standardized Patient Assessment | General |
| Snap Preview Anywhere | General |
| Santi Per Aqua | General |
| Scintillation Proximity Assay | General |
| Support Purpose Appreciation | General |
| Support Prepare Advance | General |
| Sergio Pablos Animation | General |
| Singe Page APPLICATION | General |
| Spiritual Practical and Affirming | General |
| Saab Parking Assistance | General |
| Scalable Product Architecture | General |
| Southern Pullers Association | General |
| Scalable Platform Architecture | General |
| Special Parking Area | General |
| Societa Piemontese Automobili | General |
| Sonic Park Assist | General |
| Spurassistent | General |
| Steyr Puch Austria | General |
| Scania Production Angers | General |
| Smart Parking Assist | General |
| Spyros Panopoulos Automotive | General |
| Single Pitch Award | General |
| Support Providers Annex | General |
| Small Project Assistance | General |
| Southwark Pastoral Auxiliary | General |
| Service Provider Attack | General |
| Stationary Phase Approximation | General |
| Stationary Phase Approximal | General |
| Sanitas Per Aqua | General |
| Salute Per Aqua | General |
| Sanitas per aquam | General |
| Service Providers Assessments | General |
| Socialist Party of America | Governmental |
| Socialist Party of Australia | Governmental |
| Socialistische Partij Anders | Governmental |
| Suicide Prevention Aide | Governmental |
| Special Power of Attorney | Governmental |
| Supreme People's Assembly | Governmental |
| The Secular Progressive Alliance | Governmental |
| Systems Planning and Analysis | Governmental |
| Strike Planning Archive | Governmental |
| Special Police Animals | Governmental |
| Sussex Police Authority | Governmental |
| Scottish Police Authority | Governmental |
| Special Protocol Assessment | Governmental |
| Seychelles Port Authority | Governmental |
| Special Price Authorization | Governmental |
| Subsidy Policy Announcement | Governmental |
| Security Potential And Aspiration | Governmental |
| State Plan Amendment | Governmental |
| School of Planning & Architecture | Indian Government Educational Institute |
| Single Page Application | Information Technology |
| Sanus Per Aquam | International |
| Salus Per Aquam | International |
| Standardized Performance Analysis | Jobs |
| Samples Per Average | Measurement Unit |
| Surfactant Proteins - A | Medical |
| Spondylitis Ankylopoetica | Medical |
| Super Powerful Amphetamine | Medical |
| Scottish Prescribing Analysis | Medical |
| Structured Professional Activities | Medical |
| Superficial Palmar Arch | Medical |
| Supporting Professional Activities | Medical |
| suprapubic (bladder) aspiration | Medical |
| surfactant protein A | Medical |
| Single Point of Access | Medical |
| derived from the Belgian town of Spa (Aquae Spadanae) | Medical |
| SpondyloArthritis | Medical |
| Sheep Pulmonary Adenomatosis | Medical |
| Shrinking Pleuritis with Atelectasis | Medical |
| Small Practices Association | Medical |
| Soluble Protective Antigen | Medical |
| spastic ataxia | Medical |
| Sperm Penetration Assay | Medical |
| sphenopalatine artery | Medical |
| spinal anaesthesia | Medical |
| spondyloarthropathy | Medical |
| Spontaneous Physical Activity | Medical |
| Spontaneous Platelet Aggregation | Medical |
| staphylococcal protein A | Medical |
| Societ | Messaging |
| Skill Performance Aids | Military and Defence |
| Special Psychological Operations (psyop) Assessment | Military and Defence |
| Submarine Patrol Area | Military and Defence |
| System Performance Analysis | Military and Defence |
| Special Project Aquarius | Military and Defence |
| Search Predict Act | Military and Defence |
| Server Participation Arrangement | Networking |
| Single Pole Approximations | Physics Related |
| South Pacific Ocean | Regional |
| Software Process Assessment | Softwares |
| S-band Power Amplifier | Space Science |
| Servo Power Amplifier | Space Science |
| Shared Peripheral Area | Space Science |
| Signal Processor Assembly | Space Science |
| Small Payload Accommodations | Space Science |
| Software Product Assurance | Space Science |
| Solar Panel Assembly | Space Science |
| Space Processing Application | Space Science |
| Spare Parts Analysis | Space Science |
| Steering Position Amplifier | Space Science |
| Swim Parents Association | Sports |
| Skater Punks of America | Sports |
| Sense-Plan-Act | Technology |
| Service Planning Area | Telecommunication |
| Special Prorate Agreement | Telecommunication |
