| Subject | English | Thesaurus |
| comp., net., abbr. | Access Certificates For Electronic Services | ACES |
| st.exch., abbr. | Benchmark Electronic, Inc. options | ZCZ |
| abbr., comp. | Digital Electronic Message Services | DEMS (Vosoni) |
| abbr., file.ext. | Electronic Access to Reference Services | EARS |
| st.exch., abbr. | Electronic Arts, Inc. options | ZQZ |
| st.exch., abbr. | Electronic Arts, Inc. options | WZW |
| st.exch., abbr. | Electronic Arts, Inc. options | EZQ |
| st.exch., abbr. | Electronic Arts, Inc. options | VZH |
| abbr., post | Electronic Commerce Services | ECS (secure data transmission) |
| tradem., abbr. | Electronic Control Services Company | ECS |
| abbr., post | Electronic Courier Services secure data transmission March 2000 | ECS |
| tradem., abbr. | Electronic Financial Services Council | EFSC |
| busin., abbr. | Electronic Information Services | EIS |
| abbr., astronaut. | Electronic Mail Services | EMS |
| tradem., abbr. | Electronic Manufacturing Services | EMS |
| abbr., polish. | Electronic Platform of Public Administration Services | ePUAP (Электронный портал государственных услуг Польши (bit.ly/2wN7eAq) 4uzhoj) |
| tradem., abbr. | Public Information Network For Electronic Services | PINES |
| ed., abbr. | Student Electronic Services | SES |
| abbr., post | United States Postal Service Electronic Courier Services secure data transmission March 2000 | Post ECS |
