- T. Rowe Price (Luxembourg) Management SARL
- Tailor Asset Management
- Tareno International Asset Management
- Tatra Asset Management sprav. spol.a.s.
- Teucrium
- The Vanguard Group, Inc.
- Threadneedle Investment Services Limited
- Threadneedle Management Luxembourg SA
- Three Rock Capital Management Ltd
- Tikehau Investment Management
- TMW Pramerica Property Investment GmbH
- TOBAM
- Transtrend B.V.
- TreeTop Asset Management SA
- Triglav Skladi
- Triodos Investment Management BV
- TT International
- Tutman LLP
- Tweedy, Browne Company LLC