| Navn | By |
|---|---|
| Tech-Link | Hunlebæk |
| Technicon ApS | Hobro |
| Techno-Matic A/S | Aars |
| Tecsys A/S | Glostrup |
| Tekpartner A/S | Herlev |
| Thiim A/S | Søborg |
| tic elkas A/S | Skovlunde |
| Titech Electric A/S | Odense SØ |
| Toftlund Maskinfabrik A/S | Toftlund |
| Topp Trykluft A/S | Slangerup |
| TRANSMOTOR ApS | Lemvig |
| TRECO A/S | Aalestrup |
| Trescal A/S | Silkeborg |
| Tricon International A/S | Kolding |
| Trier Industries A/S | Viborg |