By client
- Earthwatch
- East Carolina University
- Eastern European Bank
- East Jordan Iron Works, Inc.
- Easts Group
- Eckerö Line
- Ecomanage Network Corporation
- Ecotricity
- EDEKA Südwest
- Edelia
- Edinburgh’s Telford College
- Edison
- Edith Cowan University
- Edmonton Police Service
- Edmonton Public School Board
- Educational organization
- Educational products company
- Edumate
- Edwards Ltd.
- EEKA Fashion
- EFES
- EFiS EDI Finance Service AG
- Egyptian Ministry of Interior
- Elavon
- Electricity Supply Board (ESB)
- Electricity Supply Board
- Electric Utility Company
- ElectronicPartner
- Elektrizitätswerke des Kantons Zürich
- Eletrobrás Termonuclear SA (Eletronuclear)
- Eletrobrás Termonuclear SA
- Elevations Credit Union
- Elfa International
- Elie Tahari, Crop Production Services and American Heart Association
- Elie Tahari
- Elisa Corporation
- ELK Group
- EllisDon
- Embasa
- Embracing social business to share documents using IBM Connections software
- Emerson Network Power EMEA
- EMT
- endlessplace
- Endress+Hauser Group
- Endress+Hauser
- Enemalta Corporation
- Energen
- Energie Baden-Württemberg AG (EnBW)
- Energy Saving Trust
- Energy Technologies Institute
- Enfo
- Engine Informática
- Eniro
- Eni S.p.A.
- Ennova
- EnterpriseFlow
- Environmental Investigation Agency
- EnviTec Biogas AG
- E.ON UK (Powergen)
- EPELFI
- E. Pihl & Son
- Epsilon
- Epson
- Equancy
- Equifax Canada Co.
- Equifax, Inc.
- Equifax
- Eraring Energy
- eRetailer
- ESAB
- esciris
- ESK Ceramics GmbH & Co. KG
- Eskom
- Esri
- Essex County Council