| TallComponents B.V. | Gelderland |
| Talmundo | North Holland |
| Tambien | North Brabant |
| TangibleXR B.V. | |
| Tangram B.V. | Utrecht |
| TapRaise B.V. | |
| TargED Biopharmaceuticals | Utrecht |
| TBlox | South Holland |
| TBS De Buck B.V. | North Brabant |
| TBS Electronics B.V. | North Holland |
| TCA Telecom & IT | Drenthe |
| TCOMB | Groningen |
| Team Digital | |
| Team Nijhuis | Limburg |
| Team6 Game Studios | Drenthe |
| TEC Documents B.V. | North Holland |
| Tech Data Nederland B.V | |
| TechConnect B.V. | Limburg |
| Techleap.nl | |
| TechLogics | Groningen |
| Technica del Arte B.V. | Limburg |
| TechniekJobBoard | |
| Technisch Buro West Brabant B.V. | North Brabant |
| Technische Universiteit Delft | |
| Technische Universiteit Delft - Interactive Intelligence Group | South Holland |
| Technische Universiteit Eindhoven | North Brabant |
| Technische Universiteit Eindhoven - Coding and Cryptography Computer Cluster | North Brabant |
| Technische Universiteit Eindhoven - Department of Biomedical Engineering | North Brabant |
| Technische Universiteit Eindhoven - Wiskunde & Informatica | North Brabant |
| Technodesignip | South Holland |
| Technologia Incognita | |
| Technologic | |
| Technologietraining & advies | |
| Technomed | |
| Technos B.V. | North Holland |
| Technova Computing B.V. | North Brabant |
| Techone B.V. | |
| TechSon Automatisering | |
| TECHSPO Amsterdam | |
| TechTastic.nl | |
| Techval | |
| TechWolf B.V. | |
| Techzine.nl | North Brabant |
| Tégétèl | South Holland |
| Tekle Holographics | North Holland |
| Teklink Europe B.V. | Gelderland |
| TEKSTKABINET | |
| Teldacom ICT B.V. | Utrecht |
| Telec Electronics B.V. | South Holland |
| Telecats B.V. | Overijssel |