- Trillium Finishing
- Trillium Management
- Trillium Photonics
- Trillium Software
- Trillium Therapeutics
- Trillonario
- Trillworks
- Triloca
- TriLogic Pharma
- Trilogy
- Trilogy Communications
- Trilogy Education Services
- Trilogy Enterprises Inc.
- Trilogy Equity Partners
- Trilogy Health Services
- Trilogy International Partners
- Trilogy Partners LLC
- Trilogy Studios
- Trilogy Technologies Ltd
- TrilogyGrowth
- Trilogyz Wireless
- Triloq
- Trilulilu
- TriLumina
- Trilyo
- Trim
- Trimac Acceptance
- Trimaps
- Trimara
- Trimaran Advisors
- Trimaran Capital Partners
- TriMark Digital
- Trimark financial solutions
- Trimark Holdings
- Trimax Americas
- Trimax IT Infrastructure & Services
- Trimax Wireless
- Trimble
- Trimble - Energy Solutions
- Trimble Navigation
- TriMech
- Trimel Pharmaceuticals
- Trimeris
- TrimHold
- Trimian
- triMirror
- TRIMIT
- TriMod Therapeutics
- Trimph Industries
- Trimpoo
- Trin e-Ads
- Trin Trin
- TRINA SOLAR
- Trinagy
- TRINAMIC Motion Control & Co KG
- Trinamix
- Trinckle
- Trinder & Norwood
- Trindo
- Trindr
- Trinds
- TRINE
- Trinean
- Trineba Technologies
- trineOMICS
- TriNet
- Trinet Internet Solutions, Inc.
- TriNET Systems
- TriNetra Systems
- Trinetra Wireless
- TriNetX
- Trinex Commercial Finance
- Tring : Augmented Reality Messaging
- TringAll
- Tringgr
- TringMe
- Tringz
- Trinicom
- Trinigy
- Trinisys
- Trinitas Advisory
- Trinitas Capital Management
- Triniti communications
- Trinity Acquisition
- Trinity Audio
- Trinity Bidding
- Trinity Biosystems
- Trinity Biotech
- Trinity Business Advisors
- Trinity Capital Investment
- Trinity Convergence
- Trinity Event Staffing
- Trinity Expert Systems
- Trinity Fund Administration
- Trinity Funds Management
- Trinity Future-In Pvt
- Trinity Green Energies
- Trinity Hunt Partners
- Trinity ICT