| Techquity Ltd | |
| TechRelief | |
| TechRescue Computer Repair | Aberdeen |
| Techs4education Ltd | |
| TechScribe | |
| Techsim | Greater London |
| Techsoco | |
| Techsoft UK Ltd | Denbighshire |
| Techsol Group | |
| Techspace Group Ltd | |
| techSPARK | |
| techspert.io Ltd | |
| TECHSPO London | |
| Techtadd | |
| Techtoniq Ltd | |
| Techtribune Ltd | |
| techUK | Greater London |
| TechVertu | |
| Techvolte | |
| Techware One Ltd | |
| TechWyse | Essex |
| TechXect | |
| Techyback | |
| Teckle Digital | |
| Teckna Ltd | Hertfordshire |
| Teclan Ltd | Highland |
| Tecmark Ltd | Greater Manchester |
| Tecnia Digital | Norfolk |
| Tecnikal | Glasgow |
| Tecocraft Ltd | |
| Tecplicity Ltd | |
| TecRes | Surrey |
| Tecvia Ltd | |
| Tedbree | |
| Teemo Ltd | |
| Teens in Tech Incubator | |
| Teeside University - School of Computing, Engineering & Digital Technologies | North Yorkshire |
| Teesside University | North Yorkshire |
| Teichmann Lab | |
| Tek Eye | |
| Tek-nology Solutions Ltd | |
| Tekdata Interconnections Ltd | |
| Tekfirst | |
| Tekmos Communications Ltd | Isle of Man |
| Teknik Computers | |
| TekSupportUK | |
| Teksyte | |
| Tela Technology | |
| Telana | |
| Telanova | |