By customer
- Taikang Life Insurance Co Ltd. (Taikang)
- Taishin International Bank
- Taiwan High Speed Rail Corporation (THSRC)
- Takeda
- Talent2
- Tata Sky
- Tata Steel Europe
- Tateyama System Laboratory
- TaunusSparkasse
- Tax Tech
- Tayside Fire and Rescue
- TBC Corporation
- TBC
- TCCT
- TD Bank Group
- TD Banknorth
- TDX
- Tecan Group Ltd.
- Techem
- Technical University of Berlin
- Technische Universität München
- Teikoku Databank, Ltd.
- Tejon Ranch
- Telecom Italia
- Telefonica | Vivo
- Telenet
- Telenor
- Telephony Leader
- Telerx
- Tele Ticket Service
- Television Broadcasts Limited
- TeliaSonera Business Services
- Temenos Group AG
- Temenos
- Temple University
- Tennessee Valley Authority (TVA)
- TEOCO
- Teradyne Corporation
- Terna—Rete Elettrica Nazionale S.p.A
- TerraEchos
- Terranova
- Terveystalo
- TestPro
- Texas Education Agency
- The British Medical Association
- The Celtic Manor Resort
- The City of Albuquerque
- The City of Fort Worth
- The City University of New York (CUNY)
- The Co-operative Food
- The Doncasters Group
- The Environmental Protection Agency Ireland (EPA)
- The German Aerospace Center (DLR)
- The HallStar Company
- The Hartmann Group
- The Hospital for Sick Children (SickKids)
- theHRfiles
- The Marine Institute
- The Moroccan Ministry of Youth and Sports (Ministère de la Jeunesse et des Sports du Maroc)
- The National Registration Department of Malaysia
- The Newark Group
- The Office of Management and Budget of a US State
- The Orvis Company, Inc.
- The Ottawa Hospital
- The Palace Museum
- The Prince’s Trust
- The Prosecutor General’s Office of the Russian Federation
- The Random House Group Limited
- The Reject Shop
- The Rhône-Alpes Region
- The School District of Palm Beach County
- The State Hospital
- The University Competence Center at the Technical University of Munich
- The Warehouse Group
- Thiess
