All Industry companies in Penrhyndeudraeth
- Allan Green - Penrhyndeudraeth
- Babi Pur - Penrhyndeudraeth
- Blaencefn Contractors - Penrhyndeudraeth
- Ffestiniog Railway Co (Penrhyndeudraeth) - Penrhyndeudraeth
- GEWS Ltd - Penrhyndeudraeth
- Jewson Ltd (Penrhyndeudraeth) - Penrhyndeudraeth
- Marlene - Penrhyndeudraeth
- Mg Media Solutions Ltd - Penrhyndeudraeth
- Nigel Simmons Signs - Penrhyndeudraeth
- Penrhyn Guns - Penrhyndeudraeth
- Penrhyn Hire Ltd - Penrhyndeudraeth
- Penrhyn Slate Crafts - Penrhyndeudraeth
- R Aherne - Penrhyndeudraeth
- R M Davies - Penrhyndeudraeth
- Saint-Gobain Building Distribution Ltd (Penrhyndeudraeth) - Penrhyndeudraeth
- Samuel Pierce & Son - Penrhyndeudraeth
- T J B & Cyrmu - Penrhyndeudraeth
- T Tudor J - Penrhyndeudraeth
- Warren Shephard - Penrhyndeudraeth