| Kindfind Limited | Professional & scientific | 2002 |
| KJ Graphics Ltd | Professional & scientific | 2012 |
| KPB Trading Limited | Wholesale & retail | 2023 |
| L & P Taylor Limited | Real estate | 2025 |
| LA Calabria Ltd | Hospitality | 2023 |
| LA Inspection Limited | Construction | 2024 |
| Lama Homes (UK) Limited | Real estate | 2024 |
| Launch Control Media Ltd | Professional & scientific | 2017 |
| LCM 4X4 Ltd | Manufacturing | 2022 |
| Letsglampretro Limited | Hospitality | 2018 |
| Levy&Co Properties Limited | Real estate | 2024 |
| Lewis Rhydlewis CYF. | Transport & logistics | 2007 |
| Life Size Properties Ltd | Real estate | 2018 |
| Lime Crab Ltd | Hospitality | 2015 |
| Llaeth Meillionen Milk CYF | Manufacturing | 2018 |
| Llandyssul Angling Association Limited | Arts & recreation | 1965 |
| Llandysul a Phont-Tyweli Ymlaen CYF | Transport & logistics | 2004 |
| Llandysul Paddlers Canoe Centre Limited | Arts & recreation | 1997 |
| Llangrannog Welfare Committee | Other services | 2011 |
| Llew AUR Ltd. | Hospitality | 2012 |
| Llifo CYF | Real estate | 2024 |
| Lloyds Probate Services Ltd | Other services | 2020 |
| Llwyd Thomas Ltd | Wholesale & retail | 2024 |
| Lobster Design Services Limited | Professional & scientific | 1999 |
| Logo Library Limited | Arts & recreation | 2012 |
| M. J. Doughty Limited | Construction | 2003 |
| Magee Holdings Ltd | Real estate | 2017 |
| Manor Parks & Leisure Ltd. | Hospitality | 2006 |
| Marlow Property Holdings & Developments Ltd | Real estate | 2025 |
| Masterfitter Windows Ltd | Construction | 2019 |
| MCC Project Management Services Ltd | Professional & scientific | 2024 |
| Mcelveen Technical and Training Services Ltd | Professional & scientific | 2019 |
| Messrs Owen CYF | Agriculture & fishing | 2013 |
| Met-Bar Ltd | Hospitality | 2000 |
| Metallicode Ltd | Information & communication | 2024 |
| Meurig Jones CYF | Professional & scientific | 2023 |
| Montagnolo Carpentry & Construction Ltd | Manufacturing | 2020 |
| Moore Bargains Ltd | Wholesale & retail | 2024 |
| Mwnt GAS Ltd | Wholesale & retail | 2020 |
| My Bible First, UK Ltd | Wholesale & retail | 2021 |
| Nantygragen Ltd | Agriculture & fishing | 2020 |
| Natasha Watts Music Limited | Arts & recreation | 2015 |
| Naturally Baroque Ltd | Wholesale & retail | 2016 |
| NEH Developments CYF. | Construction | 2023 |
| Neurodivergent Home Care Ltd | Health & social care | 2024 |
| New Quay Honey Farm Ltd | Agriculture & fishing | 2015 |
| Newbods Ltd | Wholesale & retail | 2024 |
| Nick the Armourer Ltd | Other services | 2018 |
| Nita Estates Limited | Hospitality | 2018 |
| NO Regretty Baguetty Ltd | Hospitality | 2025 |
| Omnebonum Ltd | Manufacturing | 2017 |
| ON Show Limited | Administrative & support | 2001 |
| Opinion Life Limited | Professional & scientific | 2017 |
| Otter Initiatives Ltd | Agriculture & fishing | 2024 |
| Outback Carpentry and Building Ltd | Manufacturing | 2026 |
| Padlo Pawb CYF | Education | 2024 |
| Parry-Evans Ltd | Other services | 2022 |
| Patterson Transport Ltd | Transport & logistics | 2018 |
| Peirianwaith Emyr Jones Engineering Ltd | Construction | 2015 |
| Penbryn Films Limited | Information & communication | 2017 |
| Pengarreg Cleaning Company Limited | Other services | 2016 |
| Pengarreg Laundry Service Limited | Other services | 2014 |
| Penpynfarch Ltd | Hospitality | 2022 |
| Penrhiwgaled Arms Ltd | Hospitality | 2023 |
| Phoenix Fight Nights Ltd | Arts & recreation | 2025 |
| Plant Natur | Arts & recreation | 2008 |
| Plumbview Limited | Construction | 2022 |
| Plwmp Holiday Park Limited | Hospitality | 2002 |
| Podium Promotions Limited | Wholesale & retail | 2023 |
| Pont Tyweli Glamping Limited | Hospitality | 2024 |
| Powerhouse Renewables Ltd | Professional & scientific | 2021 |
| Privilege Windows Limited | Construction | 2021 |
| Pro Tech Breeders Ltd | Professional & scientific | 2025 |
| Prodent Paintless Dent Removal Ltd | Wholesale & retail | 2011 |
| Project 45 Limited | Professional & scientific | 2003 |
| Prometheus Creative Solutions Ltd | Professional & scientific | 2026 |
| Property Merchants Ltd | Construction | 2026 |
| Pwerdy Canolfan Gymunedol a Chelfyddydau - Powerhouse Community and Arts Centre | Arts & recreation | 2006 |
| Quay Fresh and Frozen Foods Holdings Limited | Professional & scientific | 2025 |
| Quayfresh Holdings Limited | Professional & scientific | 2011 |
| Quayfresh Properties Limited | Real estate | 2012 |
| Quayfresh Property Holdings Limited | Professional & scientific | 2025 |
| Qwerin CYF. | Arts & recreation | 2026 |
| R & T Consulting Ltd | Professional & scientific | 2015 |
| R&E Plant Hire Ltd | Construction | 2023 |
| Raven Rapid Response Couriers Ltd | Transport & logistics | 2026 |
| REE Construction (Wales) Limited | Construction | 2013 |
| Richford Property Holdings Limited | Real estate | 1999 |
| Ridge Runners Ltd | Arts & recreation | 2022 |
| Rinsd Ltd | Wholesale & retail | 2021 |
| Rivendell Home and Garden Ltd | Construction | 2025 |
| Ross Priday Consultancy Limited | Professional & scientific | 2015 |
| ROY Thomas Limited | Transport & logistics | 2007 |
| Rural Office for Architecture Ltd | Professional & scientific | 2008 |
| S & R Developments Limited | Construction | 2001 |
| S M Welding & Fabrication & SON Ltd | Manufacturing | 2025 |
| S.E.Jones Ltd | Wholesale & retail | 2008 |
| S.Meredith Investments Limited | Other services | 1954 |
| Safle CYF | Hospitality | 2024 |
| Saltwater Retreats Ltd | Hospitality | 2026 |