| 007 Diggers Ltd | Construction | 2024 |
| A. Hayward & SON Limited | Information & communication | 1991 |
| Adam Davies Stove Works Limited | Construction | 2015 |
| Aeron Vets Ltd | Professional & scientific | 2005 |
| Aethalis Ltd | Wholesale & retail | 2017 |
| Agri Trader Limited | Information & communication | 2012 |
| Agribond Ltd | Agriculture & fishing | 2020 |
| Angle Engineering Limited | Construction | 1994 |
| Arad Consultants Ltd | Information & communication | 2012 |
| Archisurv Limited | Professional & scientific | 2009 |
| Artificer Intelligence Ltd | Information & communication | 2021 |
| Badgerworx 3D Printing Ltd | Manufacturing | 2025 |
| Bancyfelin Ltd | Agriculture & fishing | 2021 |
| BCC IT Limited | Information & communication | 1991 |
| Bizerta CYF | Real estate | 2008 |
| Blaenhalen Limited | Manufacturing | 2026 |
| Blue Bay Property Ltd | Real estate | 2019 |
| Bottones Park Place Limited | Real estate | 2025 |
| Brongest Management Limited | Water & waste | 2010 |
| Bruton Consultancy LLP | | 2020 |
| Bussey & Bush Ltd | Construction | 2025 |
| C F S (UK) Limited | Financial services | 1991 |
| Cadernid C.I.C. | Other services | 2024 |
| Cae'R Winllan Management Company Limited | Real estate | 2024 |
| Cariad Laundry Ltd | Other services | 2025 |
| Castle Architectural Designs Ltd | Professional & scientific | 2004 |
| Cawdor Cars (Newcastle Emlyn) Limited | Wholesale & retail | 1985 |
| Cawdor Contracts Limited | Extraterritorial | 2015 |
| Cawdor Holdings CYF | Financial services | 2020 |
| Ceir Castle Motors Ltd | Wholesale & retail | 2005 |
| Celtic Crab Products Limited | Wholesale & retail | 2009 |
| Celtic Maple Limited | Construction | 2005 |
| Celtic Reflections Limited | Manufacturing | 2000 |
| Cerbydau Cenarth CYF | Transport & logistics | 2009 |
| Ceredigion GAS Ltd | Wholesale & retail | 2024 |
| Croeso Care Limited | Health & social care | 2007 |
| CUT N Curl (NCE) Limited | Other services | 2012 |
| D T & O Griffiths Ltd | Agriculture & fishing | 2021 |
| D W Auto Repairs Ltd | Wholesale & retail | 2025 |
| DAI Lewis CYF | Real estate | 1996 |
| Daniel Davies & Sons Limited | Wholesale & retail | 2010 |
| Datblygau Davies Developments Limited | Construction | 2001 |
| Datblygiadau Moelfre Developments Ltd | Construction | 2007 |
| Davies Whitton Road Limited | Real estate | 2014 |
| DBD Financial Limited | Professional & scientific | 2025 |
| DD Carpentry & Roofing Ltd | Construction | 2023 |
| Delme Evans Construction Limited | Construction | 2012 |
| Destiny's Loot Ltd | Wholesale & retail | 2025 |
| Dick Manteuffel & SON Limited | Construction | 2002 |
| Dolbryn Farm CYF | Hospitality | 2015 |
| Double J Developments and Rentals Ltd | Real estate | 2026 |
| Dreigiau Bach CYF | Arts & recreation | 2023 |
| Dsdmg Ltd | Wholesale & retail | 1989 |
| Dyfed IT Limited | Information & communication | 2021 |
| Easi Post Limited | Information & communication | 2025 |
| Edwards Property Investments Ltd | Real estate | 2022 |
| Eiddo Cawdor Properties Ltd | Real estate | 1993 |
| Eiddo Davies Properties Llanarth Limited | Construction | 2013 |
| Ember Grill and Smokehouse Ltd | Hospitality | 2025 |
| Emlyn Circle C.I.C. | Wholesale & retail | 2011 |
| Emlyn Dental Care Ltd | Health & social care | 2021 |
| ENVIRO365 Ltd | Professional & scientific | 2019 |
| Ffenestri Coast Windows Limited | Construction | 2009 |
| Ffenestri Kevin Thomas Windows Limited | Construction | 2023 |
| Field Maneuvers Creative Ltd | Arts & recreation | 2024 |
| Fordham Farms Limited | Agriculture & fishing | 2006 |
| GAA (Cawdor) Limited | Arts & recreation | 2012 |
| Gaer Limited | Hospitality | 2004 |
| Galeri Redi CYF | Wholesale & retail | 2019 |
| Garreg LAS Consultancy Limited | Professional & scientific | 2021 |
| Geophysical Survey Technologies Limited | Professional & scientific | 2010 |
| Gilwen Farms Limited | Agriculture & fishing | 2012 |
| Glaspant Farm Limited | Agriculture & fishing | 2004 |
| Global Excess Limited | Education | 2003 |
| Glyn Nest Baptist Home | Health & social care | 2025 |
| Glyn Nest Trustee Company Limited | Professional & scientific | 2006 |
| Golden Weather Limited | Hospitality | 2025 |
| Griffiths Holiday Cottages Ltd | Real estate | 2024 |
| Grota's Auto Parts Ltd | Wholesale & retail | 2024 |
| Gwesty'R Emlyn Hotel LLP | | 2008 |
| H Morgan Services Ltd | Construction | 2025 |
| Hantrad Limited | Hospitality | 2017 |
| Hathaway Renovations Ltd | Construction | 2024 |
| Heart of London Apartments Limited | Hospitality | 1997 |
| Heating and Boilers (Dyfed) Limited | Construction | 1985 |
| Huts | Arts & recreation | 1999 |
| Hwglp Limited | Wholesale & retail | 2025 |
| Hywel Law CYF | Professional & scientific | 2026 |
| I CAN Achieve Enterprises Limited | Real estate | 2019 |
| Iaith CYF | Professional & scientific | 1993 |
| Infinity Profit Limited | Public administration | 2018 |
| Invicta Flight Training Ltd | Professional & scientific | 2012 |
| IWW Invest West Wales Limited | Real estate | 2025 |
| J V Elias CYF | Construction | 2012 |
| Jasmin Jones Ltd | Public administration | 2018 |
| JPP Financial Solutions Limited | Financial services | 2012 |
| K & S Cymru Group Limited | Financial services | 2023 |
| K&S Cymru Property Ltd | Real estate | 2026 |
| L & L Holdings Cyfyngedig | Administrative & support | 2017 |
| M & W Tromans Ltd | Energy | 2015 |