| Name | Region |
|---|---|
| Synergy Effect | Vilnius |
| TableAir | |
| Tag of Joy | Vilnius |
| Taisykla | Vilnius |
| Tautinių bendrijų namai | |
| Teachers Lead Tech | Vilnius |
| Teamhood | |
| Tech Conference Login | Vilnius |
| Tech Zity | |
| Technews.lt | Vilnius |
| Technipolija | Kaunas |
| Techno Group Lithuania | Vilnius |
| techRemontas.lt | Vilnius |
| Tele2 Lietuva | Vilnius |
| Telecentras | Vilnius |
| Teledema | Vilnius |
| Telefonservis | Kaunas |
| Telia Lietuva | Vilnius |
| Telšių kunigų seminarija | |
| Teltonika | Vilnius |
| TeslaPay | |
| Tesonet | |
| ThinkBig | |
| Thrust | |
| Thruster | |
| Topo centras | Kaunas |
| Topzone.lt | Vilnius |
| Toughlex | |
| TrackDuck | Vilnius |
| TutoTOONS | Vilnius |
| UAB "8devices" | |
| UAB "ABG" | Kaunas |
| UAB "aCoobe" | Vilnius |
| UAB "adSEO" | |
| UAB "Adtarget.me" | |
| UAB "Aedilis" | Kaunas |
| UAB "Agina" | Vilnius |
| UAB "Agon Networks" | Vilnius |
| UAB "Aigvis" | Vilnius |
| UAB "AirnetTV" | Kaunas |
| UAB "Aitera" | Kaunas |
| UAB "Aitisfera" | Vilnius |
| UAB "Alfatel" | Vilnius |
| UAB "Alna Software" | Vilnius |
| UAB "Altabel Group" | Vilnius |
| UAB "Altas" | Kaunas |
| UAB "ALTECHNA" | Vilnius |
| UAB "Altero LT" | |
| UAB "Ankas" | Vilnius |
| UAB "AP Group" | Vilnius |