- Portstewart Taxis
- 028 70833149 - 54 Agherton Drive, Portstewart, County Londonderry, BT55 7JQ
- Central Taxis
- 028 91456781 - 7 Central Avenue, Bangor, County Down, BT20 3AF
- R & D Taxis
- 028 94433333 - 20 Carlisle Road, Templepatrick, Ballyclare, County Antrim, BT39 0EU
- Radio Taxis
- 0800 0323399 - 2 Rathbeg Avenue, Coleraine, County Londonderry, BT51 3JL
- Randal Taxis
- 028 94478747 - 2 New Street, Randalstown, Antrim, County Antrim, BT41 3AF
- Regent Taxis
- 028 25644777 - 1 Hill Street, Ballymena, County Antrim, BT43 6BH
- Ring-a-Taxi
- 028 70352089 - 36 Maybrook Park, Coleraine, County Londonderry, BT52 1SN
- Rock Taxis
- 028 40632000 - 2b Rostrevor Road, Hilltown, Newry, County Down, BT34 5UP
- S B Taxis
- 028 70836836 - 25 The Promenade, Portstewart, County Londonderry, BT55 7AD
- Sackville Taxis
- 028 71371666 - Sackville Ct Sackville St, Londonderry, County Londonderry, BT48 7BQ
- Scott's Taxis
- 028 79300000 - 11 Ballymoghan Lane, Magherafelt, County Londonderry, BT45 6HW
- Shambles Taxis
- 028 37511170 - 26c Thomas Street, Armagh, County Armagh, BT61 7QB
- Shimna Taxis
- 028 43723030 - 18b Railway Street, Newcastle, County Down, BT33 0AL
- Slane's Coach & Taxi Hire
- 028 30878715 - 60 Dundalk Street, Newtownhamilton, Newry, County Down, BT35 0PB
- Standard Taxicab Co & Courier Services
- 028 90329154 - 163 Shankill Road, Belfast, County Antrim, BT13 1FP
- Star Taxis
- 028 30264666 - 3 St. Marys Street, Newry, County Down, BT34 2AA
- Star Taxis
- 028 90238366 - 134 Donegall Street, Belfast, County Antrim, BT1 2GY
- Star Taxis
- 028 90439991 - Belfast, County Antrim, BT1 2JH
- Star Taxis
- 028 66326232 - 2 Castle Street, Irvinestown, Enniskillen, County Fermanagh, BT94 1EE
- Stranmillis Taxis
- 028 90200400 - 139a Stranmillis Road, Belfast, County Antrim, BT9 5AJ
- Stream Taxis
- 028 44614411 - 36 Stream Street, Downpatrick, County Down, BT30 6DE
- Sun Taxis
- 028 38345275 - Unit 5a Legahory Cntr, Legahory, Craigavon, County Armagh, BT65 5BE
- Sun Taxis
- 028 71885000 - 22 Melmount Road, Strabane, County Tyrone, BT82 9EE
- Sure Taxis
- 028 82252200 - 4 Glenside, Omagh, County Tyrone, BT79 7GL
- Swift Taxis
- 028 43724002 - 18 Railway Street, Newcastle, County Down, BT33 0AL
- Taxico
- 028 71311411 - 28 Bonds Street, Londonderry, County Londonderry, BT47 6EE
- Taxiline
- 028 30252425 - 15 Canal Street, Newry, County Down, BT35 6JB
- TC Taxis
- 028 25644440 - 71 Ballymoney Street, Ballymena, County Antrim, BT43 6AN
- Tempo Taxis
- 028 89541570 - 8 Manor Vw, Tempo, Enniskillen, County Fermanagh, BT94 3LY
- Thornehill Taxis
- 028 71353111 - Alder Road, Londonderry, County Londonderry, BT48 8DB
- Thornehill Taxis
- 028 71287777 - Brunswick Superbowl Pennyburn Indust Est, Londonderry, County Londonderry, BT48 0LU
- Tonys Taxis
- 028 37538609 - 40 Mountview, Keady, Armagh, County Armagh, BT60 3RG
- Tower Taxis
- 028 71371944 - 98-100 Bishop Street, Londonderry, County Londonderry, BT48 6QE
- Valley Taxis
- 028 77769303 - 31c Catherine Street, Limavady, County Londonderry, BT49 9DA
- Village Taxis
- 028 30838100 - Main Street, Camlough, Newry, County Down, BT35 7JG
- Village Taxis
- 028 90587888 - 311b Antrim Road, Newtownabbey, County Antrim, BT36 5DY
- Westend Taxis
- 028 90222120 - 1 Springfield Park, Belfast, County Antrim, BT13 3PY
- Wheelchair Friendly Taxis
- 07860 291192 - Belfast, BT8 4GY
- Whitestar Taxis
- 028 71383838 - Turnberry Manor, Strabane, County Tyrone, BT82 9TB
- Joes Taxis
- 028 41763793 - 13 Newry Street, Kilkeel, Newry, County Down, BT34 4DN