| Acronym | Definition |
|---|
| TESS➣Transiting Exoplanet Survey Satellite (US NASA) |
| TESS➣Trademark Electronic Search System (US Patent and Trademark Office) |
| TESS➣the Exponential Encryption System |
| TESS➣Toxic Exposure Surveillance System |
| TESS➣Texas Excavation Safety System |
| TESS➣Trading Edge Strategy Software |
| TESS➣Tactical Engagement Simulation System |
| TESS➣The Exponential Security System (RFC 1824) |
| TESS➣Tsuneishi Economical Standard Ship (multipurpose bulk carrier; Japan) |
| TESS➣Threatened and Endangered Species System (US Fish and Wildlife Service database) |
| TESS➣The English Spelling Society (UK) |
| TESS➣Tactical Environmental Support System |
| TESS➣Tertiary Education Superannuation Scheme (Australia) |
| TESS➣Terrorism, Espionage, Sabotage and Subversion |
| TESS➣Treatment-Emergent Signs and Symptoms |
| TESS➣Total Enterprise Security Service (SecureInfo Corporation) |
| TESS➣TRW Environmental Safety Systems Inc. |
| TESS➣Trend Enterprise Security Solution |
| TESS➣Tactical Environment Support System |
| TESS➣Triboelectrostatic Separation |
| TESS➣Testing Evaluation of Speech Synthesis (assistive technology) |
| TESS➣Training and Evaluation Support System (US FAA) |
| TESS➣Target End-To-End Signature Simulation |
| TESS➣Test Equipment, Strategy and Support |
| TESS➣Teaching English to Spanish-Speakers |
| TESS➣Tactical Electromagnetic Systems Study |
| TESS➣Test & Evaluation Simulation Subsystem |
| TESS➣The Enhanced Soldier System |
| TESS➣Transition Efficiencies in Safeguards and Security |