| Aberystwyth & District Motor Club Limited | Arts & recreation | 1984 |
| African Strategic LLP | | 2005 |
| African Strategic Services Ltd | Administrative & support | 2026 |
| Arran Bradley Limited | Construction | 2025 |
| Bragdy Torri Syched CYF | Manufacturing | 2025 |
| Brynolwg Ltd | Water & waste | 2008 |
| C.Elliott Electrical Ltd | Construction | 2025 |
| Cambrian Scaffolding Limited | Construction | 2007 |
| Cambrian Tyres (Aberystwyth) Limited | Wholesale & retail | 2012 |
| Cwlwm Cyhoeddwyr Cymru | Information & communication | 2005 |
| Daly Media Limited | Professional & scientific | 2023 |
| Davmor Motor Company Limited | Wholesale & retail | 2012 |
| Dewi Jenkins CYF | Agriculture & fishing | 2019 |
| Gwyliau Tyhen Holidays Ltd | Hospitality | 2022 |
| Independent Eco Ltd | Professional & scientific | 2025 |
| James and Hughes Ltd | Agriculture & fishing | 2020 |
| Nant Y Dail Maintenance Ltd | Real estate | 2026 |
| NINETEEN.57 Restaurant & Bar Limited | Hospitality | 2015 |
| Only Stans Ltd | Wholesale & retail | 2024 |
| P Wellings Plumbing Limited | Construction | 2009 |
| Panel POT Products Limited | Manufacturing | 2000 |
| Pattison GAS Services Limited | Construction | 2019 |
| Rali BAE Ceredigion Limited | Arts & recreation | 2019 |
| Rebel Flame Limited | Professional & scientific | 2015 |
| RT Editorial Ltd | Information & communication | 2024 |
| S Davies Construction Ltd | Construction | 2018 |
| Sea Nymph Estates Ltd | Real estate | 2014 |
| Tropical Forest Products Limited | Manufacturing | 1990 |
| West Coast Apiaries Ltd | Agriculture & fishing | 2022 |
| Yewwood Ltd | Financial services | 2008 |