| 92 Woodfield Street Barber Ltd | Hair & beauty | SA6 8BA | 2022 |
| A & S Bricklaying Contractors Ltd | Builders | SA5 4DJ | 2002 |
| A D Carpentry & Joinery Ltd | Builders | SA5 8EW | 2019 |
| A-L-R Installation Group Ltd | Builders | SA5 4EP | 2025 |
| Ab Solar Developments Ltd | Electricians | SA5 4PB | 2025 |
| Ab Solar Gd Ltd | Electricians | SA5 4PB | 2025 |
| Abertawe Roofing & Building Ltd | Roofers | SA5 9JU | 2025 |
| Abertawe Roofing Ltd | Roofers | SA5 9JU | 2026 |
| Abertawe Sectional Buildings Ltd | Builders | SA6 8QF | 2013 |
| Acl Mobile Repairs Ltd | Appliance repair | SA6 8BS | 2018 |
| Acorn Construction & Concrete Ltd | Builders | SA6 5HA | 2020 |
| Adb Building Ltd | Builders | SA5 9AR | 2016 |
| Affect Ability Ltd | Builders | SA6 5AS | 2017 |
| Affordable Tyres Swansea Ltd | Garages & mechanics | SA5 9NR | 2025 |
| Afon Lime Ltd | Plasterers | SA6 6AJ | 2020 |
| Aj Property Services (Swansea) Ltd | Painters & decorators | SA5 8EU | 2021 |
| All 4 You Contractors Ltd | Builders | SA6 7BP | 2017 |
| All In One Home and Garden Projects Ltd | Gardeners & landscapers | SA5 7JY | 2023 |
| All Wheels Alloy Ltd | Garages & mechanics | SA6 8QR | 2011 |
| Alpine Roofing (Swansea) Ltd | Roofers | SA6 6QW | 2026 |
| Ammcom Ltd | Electricians | SA6 8QE | 2003 |
| Amroc Heating Services Ltd | Plumbing & heating | SA6 8QE | 2006 |
| Andrew Francis Maintenance Contractors Ltd | Painters & decorators | SA5 7JN | 2014 |
| Andrew Wedlake Electrical Ltd | Electricians | SA6 6PS | 2011 |
| Anvil Flat Roofing Ltd | Roofers | SA6 6EH | 2024 |
| Anvil Roofing Ltd | Roofers | SA6 6EH | 2021 |
| Ar Lofts and Sons Ltd | Builders | SA5 8AN | 2022 |
| Arcsafe Ltd | Electricians | SA6 6HB | 2019 |
| Aspire Art of Hair and Beauty Ltd | Hair & beauty | SA6 8DY | 2026 |
| Ateam4hire Ltd | Removals | SA6 8DU | 2018 |
| Atf Transformations Ltd | Builders | SA6 6TA | 2024 |
| Atlan Ltd | Builders | SA5 8JA | 2019 |
| Autodor Ltd | Builders | SA5 8BG | 2008 |
| Aw Precision Tiling Ltd | Flooring & tiling | SA5 9BH | 2026 |
| B&L Decorators Ltd | Painters & decorators | SA5 4LH | 2023 |
| B.D.L. Carpentry Ltd. | Joiners & carpenters | SA6 6LU | 2003 |
| B19 Mot’S Ltd | Garages & mechanics | SA5 8LL | 2022 |
| Ballard Homes Ltd | Builders | SA6 8EX | 1997 |
| Barry Roofing Ltd | Roofers | SA5 4LH | 2019 |
| Bassetts (Swansea) Ltd | Garages & mechanics | SA6 8HF | 1991 |
| Bayside Building Ltd | Builders | SA6 8HG | 2026 |
| Beauty By Amanda Ltd | Hair & beauty | SA5 4NF | 2024 |
| Beavan Builder'S Ltd | Builders | SA5 9AN | 2022 |
| Beta-Electrical Ltd | Electricians | SA6 5ET | 2010 |
| Better Cut Carpentry (Swansea) Ltd | Builders | SA5 7AR | 2023 |
| Bloom Nail & Spa Ltd | Hair & beauty | SA6 8AL | 2026 |
| Bml Interiors Ltd | Builders | SA6 8BP | 2025 |
| Boughan Professional Cleaning Ltd | Cleaners | SA6 6FH | 2025 |
| Bowen Hopkins Ltd | Electricians | SA5 8HS | 1980 |
| Brandrick Group Ltd | Electricians | SA5 8HS | 2026 |
| Bricktop Build Ltd | Builders | SA5 4LH | 2026 |
| Bro Blade Barber Ltd | Hair & beauty | SA5 8PP | 2024 |
| Building Services Controls 2 Ltd | Builders | SA5 4AJ | 2026 |
| Building Services Controls Ltd | Builders | SA5 4AJ | 1996 |
| Buildmor Ltd | Builders | SA5 8EY | 2018 |
| Built Right Building Ltd | Builders | SA5 8EW | 2005 |
| Bulls Properties Ltd | Builders | SA5 5QQ | 2022 |
| C & R Carpentry Ltd | Builders | SA6 5RL | 2012 |
| C N R Motors Ltd | Garages & mechanics | SA5 9PD | 2025 |
| C.T. Home Improvements & Freight Transport Ltd | Joiners & carpenters | SA5 7NF | 2021 |
| Caebricks Developments Ltd | Builders | SA5 8NS | 2003 |
| Care & Repair Solutions Ltd | Builders | SA6 5BQ | 2011 |
| Castle View Mumbles Ltd | Builders | SA5 7BG | 2020 |
| Caswell Interiors Ltd | Builders | SA6 8QQ | 2008 |
| Celtic Office Cleaning Ltd | Cleaners | SA6 6LP | 2025 |
| Ceo.Welding Ltd | Builders | SA6 6QA | 2023 |
| Chris Chambers Holdings Ltd | Electricians | SA5 8HS | 2026 |
| Civic Motoring Services Ltd | Garages & mechanics | SA6 8QF | 1992 |
| Classic Cut Barber Ltd | Hair & beauty | SA6 8AR | 2014 |
| Classic Restoration Motorsport Ltd | Garages & mechanics | SA5 9HS | 2018 |
| Clydach Construction Ltd | Builders | SA6 5BQ | 1999 |
| Cmp Carpentry Ltd | Joiners & carpenters | SA6 8JG | 2017 |
| Coastal-Bay Building Contractor Ltd | Builders | SA5 4QF | 2026 |
| Colgas Ltd | Plumbing & heating | SA5 7AU | 2025 |
| Color Harmony Ltd | Painters & decorators | SA6 8AL | 2026 |
| Compton Developments Ltd | Builders | SA6 8EX | 1973 |
| Compton Solar Ltd | Electricians | SA6 8EX | 2011 |
| Copper Coast Ltd | Builders | SA6 5NS | 2021 |
| Corey Young Bricklaying Ltd | Builders | SA5 4PB | 2022 |
| Cps Construction Ltd | Builders | SA6 8EB | 2021 |
| Craftsmen Building & Property Services Ltd | Builders | SA6 6PL | 2003 |
| Crockers Building Ltd | Builders | SA5 7AS | 2024 |
| Crystal Clear Pools Ltd | Builders | SA6 8PL | 2014 |
| Crystalclean Elite Shine Ltd | Cleaners | SA6 5DL | 2026 |
| Csmc Electrical Ltd | Electricians | SA6 6TP | 2025 |
| Customized Maintenance Ltd | Cleaners | SA5 7EA | 2019 |
| Cwjet Ltd | Builders | SA6 6EZ | 2025 |
| D & C Electrical (Swansea) Ltd | Electricians | SA5 8HS | 2013 |
| D Rossiter Construction Ltd | Builders | SA5 4QU | 2015 |
| D Saunders Roofing and Building Ltd | Roofers | SA5 5BU | 2022 |
| Dabek Building Services Ltd | Builders | SA5 5QQ | 2024 |
| Darglen Motors Ltd | Garages & mechanics | SA6 8EF | 1973 |
| Darlee Ltd | Roofers | SA6 8DU | 2025 |
| Darren Jonah Plastering & Building Ltd | Builders | SA5 5EU | 2008 |
| Db Electrical Swansea Ltd | Electricians | SA5 9HR | 2021 |
| Desmondbros4 Ltd | Builders | SA5 8JQ | 2019 |
| Devois Interiors Ltd | Builders | SA6 6QW | 2014 |
| Dex-Elec Ltd | Electricians | SA5 8JQ | 2019 |
| Dex-Renovations Ltd | Builders | SA6 6LR | 2023 |
| Direct Tile Warehouse Ltd | Builders | SA6 8EX | 1997 |
| Dj Barber Swansea Ltd | Hair & beauty | SA6 8AL | 2024 |
| Dpe Packing Supplies Ltd | Removals | SA5 7JA | 2024 |
| E&R Ltd | Hair & beauty | SA5 5DN | 2025 |
| E.R. Ryan Services Ltd | Builders | SA6 7BP | 2017 |
| East End Garage Ltd | Garages & mechanics | SA6 5PZ | 2018 |
| Eaton Fencing Specialists Ltd | Builders | SA6 8QQ | 2011 |
| Ebe Properties Ltd | Electricians | SA5 8LN | 2025 |
| Echo Wizzardary Ltd | Builders | SA6 7BP | 2017 |
| Electrigise Ltd | Electricians | SA6 6TG | 2022 |
| Elegant Aesthetics Ltd | Hair & beauty | SA6 8AY | 2026 |
| Elegant Beauty and Aesthetics Ltd | Hair & beauty | SA6 8AY | 2025 |
| Elite Aerial Services Ltd | Builders | SA5 4HH | 1978 |
| Elite Drywall Interiors Ltd | Flooring & tiling | SA5 8QH | 2020 |
| Eliteroof & Building Ltd | Builders | SA5 5HX | 2026 |
| Eps Construction Ltd | Electricians | SA5 4HN | 2005 |
| Eps Ev Ltd | Electricians | SA5 4HN | 2024 |
| Er4 Ltd | Builders | SA6 6AQ | 2025 |
| Era Construction & Civil Engineering Ltd | Builders | SA6 5AA | 2022 |
| Everyday Maintenance Services Ltd | Builders | SA6 6LT | 2026 |
| Excel Repair Centre Ltd | Garages & mechanics | SA6 7BP | 2014 |
| Express Windows (South Wales) Ltd | Glaziers | SA6 7AN | 2023 |
| Fab Lash Beauty Ltd | Hair & beauty | SA5 4SS | 2019 |
| Fairtrade Windows and Doors Ltd | Builders | SA6 6QZ | 2023 |
| Farrington Electrics Ltd | Electricians | SA6 5EF | 2015 |
| Fastec Electrical Services Ltd | Electricians | SA5 4RA | 2006 |
| Fforest Auto Swansea Ltd. | Garages & mechanics | SA5 4BA | 2017 |
| Fforestfach Decorating Services Ltd | Painters & decorators | SA6 8QQ | 2002 |
| Figaros Barbers S Ltd | Hair & beauty | SA6 8DR | 2023 |
| Fire Safety Direct Ltd | Electricians | SA6 8DB | 2003 |
| Firel Ltd | Joiners & carpenters | SA6 8BP | 2023 |
| First Response Roofing & Building Ltd | Roofers | SA5 4AP | 2023 |
| Flawless Detailing Ltd. | Garages & mechanics | SA6 8PZ | 2016 |
| Flooring & Beyond Ltd | Flooring & tiling | SA5 7EZ | 2025 |
| Flush H2o Ltd | Plumbing & heating | SA6 6LY | 2022 |
| Flybelow Ltd | Garages & mechanics | SA6 8QQ | 1998 |
| Foundry Garage Clydach Ltd | Garages & mechanics | SA6 5RG | 2024 |
| Four Brothers Barbers Ltd | Hair & beauty | SA5 8PP | 2020 |
| Four Corners Decorating Ltd | Flooring & tiling | SA5 8PE | 2021 |
| Four Seasons Garden Services Swansea Ltd | Gardeners & landscapers | SA6 6TB | 2016 |
| Fox Flooring Installations Ltd | Flooring & tiling | SA5 7HA | 2024 |
| Fresh Start Property Care Ltd | Cleaners | SA5 7AU | 2025 |
| Freshwater Interiors Ltd | Plumbing & heating | SA5 4QU | 2004 |
| Frf (Accident Repair Centre) Ltd | Garages & mechanics | SA6 8HF | 2004 |
| Futureheat24 Ltd | Plumbing & heating | SA5 4LH | 2026 |
| Ggcleensluxuryautodetailing Ltd | Cleaners | SA5 7EG | 2026 |
| Glain Property Services Ltd | Builders | SA6 5PZ | 2007 |
| Gm Landscape Holdings Ltd | Gardeners & landscapers | SA6 7EU | 2025 |
| Go Floor Ltd | Flooring & tiling | SA5 8HA | 2023 |
| Gower Bathrooms Ltd | Builders | SA6 5JF | 2013 |
| Green Acorn Ventures Ltd | Builders | SA5 8PR | 2020 |