| 10 Broad Street Management Company Limited | Real estate | 2014 |
| ALL Change Productions Ltd | Arts & recreation | 2010 |
| Built by ED Limited | Information & communication | 2019 |
| Clark's College Limited | Real estate | 1965 |
| Dulas Terrace Management Company Limited | Households | 2024 |
| F.V. Catering & Hospitality Ltd | Hospitality | 2026 |
| G.H.Keylock Limited | Real estate | 1960 |
| HAY and District Chamber of Commerce Limited | Other services | 1991 |
| HAY Castle Trust | Arts & recreation | 2011 |
| HAY ST Mary's F.C. Limited | Arts & recreation | 2023 |
| Horsewise Limited | Agriculture & fishing | 2010 |
| JUMP4TIMBUKTU Limited | Wholesale & retail | 2008 |
| Loyal HAY Masonic Hall Company Limited | Real estate | 1972 |
| LS Galleries LLP | | 2017 |
| Mark Westwood Books Ltd | Wholesale & retail | 2005 |
| Market Street (HAY) Management Co Ltd | Households | 2025 |
| OIL & Oak Ltd | Wholesale & retail | 2021 |
| Parker Cosmetics Consulting Ltd | Professional & scientific | 2023 |
| Pixelshifters Ltd. | Information & communication | 2000 |
| R M Jones (Chemists) Limited | Wholesale & retail | 2014 |
| R M Jones Limited | Wholesale & retail | 1993 |
| R. Jenkins & Sons Limited | Agriculture & fishing | 2002 |
| THE Llwynbrain Farm Partnership | | 1994 |
| THE Three Tuns (Hay-On-Wye) Limited | Hospitality | 2018 |