| Name | Country | Market Cap (US$) |
|---|
| Tangram Enterprise Solutions, Inc. | United States | Private |
| Tao Group, Ltd. | United Kingdom | Private |
| Taral Networks | United States | Private |
| Tarang Software Technologies Pvt. Limited | India | Private |
| Target Software, Inc. | United States | Private |
| Task-Based Technologies, Inc. | United States | Private |
| TASKE Technology, Inc. | Canada | Private |
| Tatara Systems, Inc. | United States | Private |
| Tci Solutions Inc | United States | Private |
| TCI Solutions, Inc. | United States | Private |
| TDA Systems, Inc. | United States | Private |
| TDK Mediactive, Inc. | United States | Private |
| TeaLeaf Technology, Inc. | United States | Private |
| TeamQuest Corporation | United States | Private |
| Teamsoft, Inc. | Canada | Private |
| Teamstudio, Inc. | United States | Private |
| Teamsystem Spa | Italy | Private |
| Tebis Technische Informationssysteme Ag | Germany | Private |
| TechBooks, Inc. | United States | Private |
| TECHEAD | United States | Private |
| Technica Corporation | United States | Private |
| Technical Difference, Inc. | United States | Private |
| Technion Communications Corporation | United States | Private |
| Technology Concepts & Design, Inc. | United States | Private |
| Technology Management Concepts | United States | Private |
| TechSmith Corporation | United States | Private |
| TeckChek | United States | Private |
| Tecnomatix Technologies, Inc | United States | Private |
| Tecplot, Inc. | United States | Private |
| TECSys Development, Inc. | United States | Private |
| Teja Technologies, Inc. | United States | Private |
| Tek-Tools, Inc. | United States | Private |
| Telarix, Inc. | United States | Private |
| Teleca Ltd | United Kingdom | Private |
| Telecom Systems S.A. | Switzerland | Private |
| TeleDirect International, Inc. | United States | Private |
| Teleknowledge Group Ltd. | Israel | Private |
| Telelogic North America Inc | United States | Private |
| Telemac Corporation | United States | Private |
| Telemate.Net Software, Inc. | United States | Private |
| Teleran Technologies, Inc. | United States | Private |
| TeleSynthesis, Inc. | United States | Private |
| TeleWare plc | United Kingdom | Private |
| Tellurian, Inc. | United States | Private |
| Telluride Technologies, Inc. | United States | Private |
| Teloquent Communications Corporation | United States | Private |
| Telos Corporation | United States | Private |
| Telum International Inc. | Canada | Private |
| Telution, Inc. | United States | Private |
| Telynx Inc | United States | Private |
| Tempest Software, Inc. | United States | Private |
| Tenable Network Security, Inc. | United States | Private |
| Tenison Technology EDA Limited | United Kingdom | Private |
| Tenrox, Inc. | Canada | Private |
| Tensilica, Inc. | United States | Private |
| TEOCO Corporation | United States | Private |
| Tera Systems, Inc. | United States | Private |
| TeraCloud Corporation | United States | Private |
| Teragram Corporation | United States | Private |
| Terion, Inc. | United States | Private |
| Teros, Inc. | United States | Private |
| Tescom USA Software Systems Testing, Inc. | United States | Private |
| Teseda Corporation | United States | Private |
| TetraData Corporation | United States | Private |
| Teymi Hf | Iceland | Private |
| TGS Europe S.A. | France | Private |
| Thaddeus Systems, Inc. | United States | Private |
| Tharas Systems, Inc. | United States | Private |
| The Active Network, Inc. | United States | Private |
| The AdTrack Corporation | United States | Private |
| The Amanda Company, Inc. | United States | Private |
| The Amethyst Corporation | United States | Private |
| The Animal Logic Group | Australia | Private |
| The CBORD Group, Inc. | United States | Private |
| The Children's Internet, Inc. | United States | Private |
| The Codemasters Software Co Ltd | United Kingdom | Private |
| The Data Corporation | Canada | Private |
| The Fizz Factor Game Studio | United States | Private |
| The GetPAID Corporation | United States | Private |
| The Hive Group | United States | Private |
| The Jobscope Corporation | United States | Private |
| The KLI Learning Corporation | United States | Private |
| The Kodiak Group, Inc. | United States | Private |
| The Learning Company | United States | Private |
| The Learning Company (Wordstar) | United States | Private |
| The Learning Trust | United States | Private |
| The MacGregor Group, Inc. | United States | Private |
| The Mathworks Ltd | United Kingdom | Private |
| The MathWorks, Inc. | United States | Private |
| The Messaging Architects | Canada | Private |
| The Micron Group | United Kingdom | Private |
| The Mortgage Coach | United States | Private |
| The Nakoma Group | United States | Private |
| The Nikko System Center Ltd. | Japan | Private |
| The PowerTech Group, Inc. | United States | Private |
| The SSI Group, Inc. | United States | Private |
| The Stanton Group | United States | Private |
| The TOLIS Group, Inc. | United States | Private |
| The Wanbishi Archives Co., Ltd. | Japan | Private |
| The Weiland Financial Group, Inc. | United States | Private |
|
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