| A&L Fabrications Ltd | Administrative & support | 2022 |
| Ability Playgrounds Limited | Manufacturing | 2011 |
| Aguahold Limited | Extraterritorial | 2006 |
| Alec Roberts Building Limited | Construction | 2016 |
| Bethesda A.F.C. Social Club (1973) Limited | Extraterritorial | 1973 |
| Black Rainbow Limited | Professional & scientific | 2010 |
| C L Jones Properties Limited | Real estate | 2021 |
| Ceir Seiont Cars Ltd | Wholesale & retail | 2021 |
| Cwmni Addysg Rhyw SEX Education Company | Education | 2019 |
| Elentecbio Limited | Water & waste | 2013 |
| Evidera, Inc. | | 1995 |
| Felin Fawr Estate Ltd | Real estate | 2025 |
| Felin Fawr Slate Ltd | Manufacturing | 2020 |
| G. L. Jones Investments Limited | Professional & scientific | 2010 |
| GEE & SON (Denbigh) Limited | Extraterritorial | 1978 |
| Hedydd CYF | Arts & recreation | 2024 |
| J R Scaffolding Limited | Construction | 2004 |
| J.F. Smith (Roofing) Limited | Wholesale & retail | 1966 |
| Metrig Cyfyngedig | Information & communication | 2001 |
| Mountain Biking Worldwide Ltd | Arts & recreation | 2015 |
| Partneriaeth Ogwen | Administrative & support | 2013 |
| Pwlltec Ltd | Water & waste | 2022 |
| Renuables Ltd | Professional & scientific | 2015 |
| Robert Brothers Transport Limited | Transport & logistics | 2021 |
| Rokkaku Tents LLP | | 2022 |
| Seiont Transport Solutions Ltd | Transport & logistics | 2021 |
| Sgaffaldiau Mabon Scaffolding Ltd | Construction | 2026 |
| Siop Ogwen | Wholesale & retail | 2016 |
| Studio Bristow Ltd | Professional & scientific | 2015 |
| Tabernacl (Bethesda) CYF. | Information & communication | 1994 |
| THE Publications Pipeline Ltd | Information & communication | 2026 |
| Thomas Mortgage & Protection Solutions Ltd | Financial services | 2023 |
| Yonca Kebab Ltd | Hospitality | 2022 |