- TLA776
- TLA785
- TLA787
- TLA882
- TLA887
- TLM002
- TLM022
- TLM059
- TLM065
- TLM069
- TLM073
- TLM107
- TLM141
- TLM263
- TLM397
- TLM431
- TLM436
- TLM487
- TLM566
- TLM629
- TLM680
- TLM689
- TLM720
- TLM725
- TLM776
- TLM998A
- TLMC01
- TLMC03
- TLS
- TLX
- TmaxSoft
- TMON
- TMW Systems Incorporated
- TOA Technologies
- Tobi
- Tobi-Duo
- Tocoman
- TogetherSoft
- Tokyo Electron
- Tom Anderson
- Tom Cargill
- Tom Clancy
- Tom Clancy
- Tom DeMarco
- Tom Gilb
- Tom Kilburn
- Tom Mutdosch, Daniel Lee
- Tom Ostad
- Tom O’Rourke
- Tom van Vleck
- Tomato
- Tomax Corporation
- TomorrowNow
- TOMY Blip
- Tomy Co., Ltd.
- Tomy Pyuuta Jr.
- Tonec
- Toolwiz Care
- Toolwiz Software
- Toon Boom Animate
- Toon Boom Animation Inc.
- Toon Boom Harmony
- Toon Boom Harmony Stand Alone
- Toon Boom Manager
- Toon Boom Pencil Check Pro
- Toon Boom Storyboard
- Toon Boom Storyboard Pro
- Toon Boom Storyboard Pro 3D
- Toon Boom Studio
- Toon Gramps update
- Top Image Systems, Ltd.
- Top Notch Networking, LLC
- Topaz Systems, Inc.
- TOPAZ Technologies LLC.
- TopCoder
- Topologe, LLC
- TOPS Software LLC
- TOPS-20
- TopviewSoft
- TopWare Interactive
- Torrent Systems
- Torry Harris Business Solutions
- Tōru Iwatani
- Toru Takahashi
- TOS/360
- TOSBAC 3400
- TOSBAC DS/600
- TOSBAC DS/6060
- TOSBAC Kanji System 15
- TOSBAC System 15
- TOSBAC System 35
- TOSBAC System 55
- TOSBAC UX300
- TOSBAC UX300FII
- TOSBAC UX700
- TOSBAC-1100E
- TOSBAC-1150 System VI Sheet File System
- TOSBAC-1350
- TOSBAC-2100