| 3 PEN CEI Management Company Limited | Households | 2020 |
| 50 Shades of Clean Commercial Ltd | Administrative & support | 2023 |
| 50 Shades of Clean Limited | Administrative & support | 2017 |
| A Sweeney Construction Ltd | Construction | 2015 |
| Aberaeron Craft Centre Limited | Wholesale & retail | 1996 |
| Aberaeron Properties Ltd | Real estate | 2021 |
| Aberaeron Town Improvements | Other services | 2023 |
| Aberarth Roofing Limited | Construction | 2003 |
| Aberirvine Limited | Information & communication | 2025 |
| ADE A'I Gwmni CYF | Agriculture & fishing | 2009 |
| Aeron Coast (Holidays) Limited | Hospitality | 1963 |
| Aeron Riverside Laundry Ltd | Other services | 2023 |
| AHBW1 Ltd | Financial services | 2025 |
| ALL Shades, Walking Pawz Ltd | Other services | 2026 |
| AOJ Grazing Ltd | Financial services | 2024 |
| Arty-Parti Ltd | Arts & recreation | 2020 |
| Axxis Group Ltd | Administrative & support | 2022 |
| Beechwood Land Ltd | Real estate | 2024 |
| Blue Light Publishing Limited | Education | 2006 |
| Board Pass Ltd | Education | 2018 |
| BOS Group Ltd | Financial services | 2026 |
| Bradford House Flat Management Company Ltd | Real estate | 2018 |
| Byrgyr CYF | Hospitality | 2017 |
| CAA Cymru. CYF | Professional & scientific | 2022 |
| Cambrian 4X4 Ltd | Wholesale & retail | 2021 |
| Cardigan Bay Hand Therapy Ltd | Health & social care | 2018 |
| Cardigan Bay Seafood Festival | Other services | 2008 |
| Charlie Morgan Grassmaster Limited | Professional & scientific | 2011 |
| Cjes Electrical Solutions Limited | Construction | 2018 |
| Clements Hometrends Ltd | Construction | 2025 |
| Clwb PEL Droed Aberaeron Football Club Ltd | Arts & recreation | 2019 |
| Compton Cymru Cyfyngedig | Wholesale & retail | 1995 |
| Conti's Ice Cream Limited | Manufacturing | 2019 |
| Corrigendum Ltd | Health & social care | 2022 |
| D P + R Jones Developments Limited | Real estate | 2004 |
| Derwen Developments Ltd | Construction | 2020 |
| DIJ Properties Ltd | Real estate | 2018 |
| DML Electrical Engineers Limited | Construction | 2013 |
| Drak Dent Ltd. | Health & social care | 2021 |
| Driver Financial Services Limited | Financial services | 1999 |
| Dwei Barber Ltd | Other services | 2025 |
| Evergreen Unique Homes Ltd | Real estate | 2020 |
| Family Holidays Ltd | Hospitality | 1999 |
| Fields Park (Cardiff) Limited | Real estate | 2015 |
| First CUT Post Productions Ltd | Information & communication | 2020 |
| G&N Williams (Carmarthen) Ltd | Financial services | 2025 |
| Gatehouse (Wales) Limited | Real estate | 2003 |
| Gatehouse Decorators Ltd. | Construction | 2014 |
| Gleaming Touch Property Services Ltd | Administrative & support | 2023 |
| Grangeway Transport Ltd | Transport & logistics | 2025 |
| GT World Limited | Professional & scientific | 2012 |
| Gwelfor Consulting Limited | Information & communication | 2008 |
| GWENLLI68 CYF. | Real estate | 2003 |
| Gwisgo Ltd | Wholesale & retail | 2007 |
| Gwynne Hughes Limited | Professional & scientific | 2014 |
| Hafan Epic Retreats CYF | Hospitality | 2017 |
| Hafan Manteg Ltd | Real estate | 2025 |
| Hope Kitchens & Interiors Limited | Construction | 2025 |
| Howell Jones Construction Limited | Construction | 2002 |
| Hydro Schemes UK Ltd | Energy | 2010 |
| Irhyse Ltd | Hospitality | 2023 |
| J & C Plant Limited | Wholesale & retail | 2026 |
| J W Tractors Limited | Wholesale & retail | 2012 |
| Jack's Traditional Barber Ltd | Other services | 2018 |
| JO Consults Ltd | Professional & scientific | 2021 |
| John Thomas & Sons Property Limited | Real estate | 2014 |
| Jones Diaz Builders Ltd | Construction | 2023 |
| L D Davies and SON Limited | Construction | 2018 |
| L J E Building Ltd | Construction | 2023 |
| Ljenkins Property Ltd | Real estate | 2025 |
| Lloyd Motors Aberaeron Ltd | Wholesale & retail | 2012 |
| Lucky House (Aberaeron) Ltd | Hospitality | 2024 |
| Magifor Limited | Real estate | 2013 |
| Marlmed Limited | Information & communication | 2026 |
| Merryman Limited | Extraterritorial | 2005 |
| MGC West Wales Limited | Construction | 2020 |
| Moody Meadows Ltd | Hospitality | 2025 |
| Moving Forward Recruitment Ltd | Administrative & support | 2021 |
| Myles Gaskell and Sons Ltd | Construction | 2015 |
| Northa Property Group Ltd | Construction | 2026 |
| Noson CYF | Hospitality | 2023 |
| Paradise Pizza Shop Limited | Hospitality | 2024 |
| Perfekt COW Nutrition Limited | Agriculture & fishing | 2017 |
| PTM Developments Ltd | Construction | 2017 |
| Quay Financial Services Ltd | Financial services | 2019 |
| R B D Limited | Construction | 2006 |
| R K Pods Limited | Hospitality | 2023 |
| R2M&N Ltd | Hospitality | 2010 |
| Rosemary Group Ltd | Financial services | 2026 |
| Sandra Williams Limited | Wholesale & retail | 2025 |
| Sion Evans Fitness Limited | Arts & recreation | 2024 |
| Solar EV Systems Ltd | Extraterritorial | 2023 |
| Sunclouds Limited | Other services | 2002 |
| Swindells Hair & Beauty Ltd | Other services | 2019 |
| Systemassure Itsm Ltd | Information & communication | 2022 |
| T. Lloyd Jones Forge (Holdings) Limited | Real estate | 1997 |
| T.R Harries CYF | Construction | 2017 |
| TAI Aeron CYF | Households | 2019 |
| Tan-Ia Wellness Limited | Arts & recreation | 2026 |
| Team Global Security Services Ltd | Administrative & support | 2008 |