| Subject | English | Thesaurus |
| abbr., astronaut. | Advanced Systems and Technology Programme | ASTP (ESA) |
| st.exch., abbr. | American Computerized Commodity Exchange System And Services | ACCESS |
| mil., abbr. | Army Data Services and Administration Systems Command | ADSC |
| mil., abbr. | automated radar terminal system ARTREP, Army training and evaluation program | ARTS |
| mil., abbr. | Command and Control System Program Review | C2SPR |
| st.exch., abbr. | Computer-assisted Order Routing and Execution System for Options | CORESO |
| mil., abbr. | Consolidated Program and Budgeting System | CPBS |
| abbr., file.ext. | Cooperative Library Agency for Systems and Services | CLASS |
| abbr., scottish | Countermeasures And Weapon Systems Engagement Model programme | CAWSEM (UK) |
| IT, abbr. | Dedicated Office Systems and Services | DOSS |
| abbr., mil., WMD | Deputy Director Acquisition Policy and Program Integration for Acquisition Systems Management, Office of the Under Secretary of Defense for Acquisition | Dep Dir, ASM |
| USA | Directorate Of Information Systems And Services | DISS |
| abbr. | Information Systems and Services | ISS (информационные системы и услуги Oleg Sollogub) |
| abbr. | Information Systems and Services | IS&S (информационные системы и услуги Oleg Sollogub) |
| IT, abbr. | Integrated Systems and Information Services | ISIS (OS, Intel) |
| abbr., file.ext. | Integrated Systems and Information Services | ISIS |
| mil., abbr. | Joint Worldwide Military Command and Control Information System Program | JWIS |
| account., abbr. | National Information Services And Systems | NISS |
| mil., abbr. | Program Executive Officer - Command and Control System | PEO-CCS |
| abbr., mil., WMD | Program Performance and Budget Execution Review System | PPBERS |
| account., abbr. | Program Planning and Budgeting System | PPBS |
| abbr., softw. | System Analysis and Program Development | SAP (bigmaxus) |
| IT, abbr. | System and Network Administration Program | SNAP |
| abbr., file.ext. | Systems Services and Technology | SST |
| IT, abbr. | Total On-Line Program and Information Control System | TOPICS |
| abbr. | User Services and Systems Support | USSS |
| comp., abbr. | Web Engineered Systems and Services | WESS |
