All Industry companies in Llangefni
- Alaw Stores - Llangefni
- Albert Lloyd Owen - Llangefni
- Aled Wynn Davies & Helen Wynn Davies - Llangefni
- All Meck Services - Llangefni
- Anglesey Online Web and Graphic Design - Llangefni
- Anglesey Windows & Joinery - Llangefni
- Animal Allsortz - Llangefni
- Barry Lloyd - Llangefni
- Brandon Hire Ltd (Llangefni) - Llangefni
- Britannia Computer Services - Llangefni
- C D M (Cymru) Cyf - Llangefni
- Cookies - Llangefni
- Cross Chemicals U K Ltd. - Llangefni
- D W Hughes Civil Engineering - Llangefni
- Doohan Civil Engineers Ltd - Llangefni
- Dulas Boat and Caravan Co - Llangefni
- E Pritchard - Llangefni
- Electrical Supplies (Anglesey) Ltd - Llangefni
- Evans J T & J A - Llangefni
- FAUN Zoeller (UK) Ltd - Llangefni
- Fire-Works - Llangefni
- G W & C A Owen - Llangefni
- Glanbia Cheese Ltd. - Llangefni
- Gwynfor Coaches - Llangefni
- Henry Pritchard-Rayner - Llangefni
- Huws Gray Ltd. - Llangefni
- Ian & Gary Spencer - Llangefni
- Laserpack Cartons and Cases Ltd - Llangefni
- Last Trading Post - Llangefni
- Llechwedd Trading Ltd - Llangefni
- Lucas Oil Products U K Ltd - Llangefni
- Mac Tools - Llangefni
- Marco Cable Management - Llangefni
- Menter Mon Cyf - Llangefni
- Mona Lifting Ltd - Llangefni
- Mona Tractor Co. Ltd. - Llangefni
- Myplan Ltd - Llangefni
- P & M Videos - Llangefni
- Paramaeth Agricultural Merchants - Llangefni
- R G R Partnership - Llangefni
- Redileads Anglesey Ltd. - Llangefni
- Russell Hughes Architects - Llangefni
- Russell-Hughes Cyf. - Llangefni
- S Griffiths - Llangefni
- Thomas P Jones - Llangefni
- Turners Bakery - Llangefni
- Vion Food Group (Llangefni) - Llangefni
- W I & T Evans - Llangefni
- W O Jones(Printers) Ltd. - Llangefni
- William Hughes (Civil Engineering) Ltd. - Llangefni
- William Thomas - Llangefni