- Espresso Book Machine
- Espresso Logic, Inc.
- Esri
- Esri CityEngine
- ESS
- ESS Technology
- Essbase
- Essel Software & Services Ltd.
- Essemm Information Systems Ltd.
- Esterel Technologies
- Esther Dyson
- Esther Dyson
- Estil Hoversten
- Estimote, Inc.
- ESTsoft
- ET-5320SII
- ETA Systems
- Etapatelecom
- ETAS Group
- eTeam
- eTek IT Services, Inc.
- eTeks
- Etelesolv
- Ethan Group Pty Limited
- Ethel Cox Marden
- Etheric Networks
- ETinySoft
- ETL Mark I
- ETL Mark II
- ETL Mark III
- ETL Mark IV
- ETL Mark IV A
- ETL Mark IV B
- ETL Mark V
- ETL Mark VI
- ETNA Software
- EtQ , Inc.
- etst
- Ettain Group
- EU-T400
- Euclid Technology, LLC.
- Euclideon
- Eugene (Gene) L. Delves
- Eugene (Spaf) Howard Spafford
- Eugene Edward McDonnell
- Eugene Leonidovich Roshal
- Eugene Wong
- EULAlyzer Personal
- Eunice E. Santos
- Euroland IT Services
- European Museum on Computer Science and Technology
- European Software Alliances Ltd
- Eurosoft
- Eurotalk
- Eurotech SpA
- Eusing Software
- Eva Tardos
- Evadin
- Evadin TVG 102-4
- EvaluNet
- Evan Sharp
- Evan Thomas Spiegel
- Evan Williams
- Evangelos S. Eleftheriou
- Evans & Sutherland
- Evanston Group
- EVault
- Evelyn Boyd Granville
- Eventis
- Events Committee
- Everbread ltd.
- Everest Ultimate Edition
- Everex
- Evernote
- Evesham
- EVGA Classified SR-2 (Super Record 2)
- EVGA Classified SR-X
- EVGA Corporation
- EVGA P67 FTW
- EVGA X58 Classified3
- EVGA X58 FTW3
- EVGA X79 Classified
- EVGA X79 FTW
- EVGA X79 SLI
- EVGA Z68 FTW
- EVGA Z68 SLI
- EVGA Z75 SLI
- EVGA Z77 FTW
- Evgenii Mikhailovich Landis
- Evi Software
- EVOC Intelligent Technology Co Ltd
- eVoice
- Evoke Technologies
- Evolution Studios
- Evolve IP
- EVRY
- EVS Broadcast Equipment
- EWave
- EWorld