| Action Property Maintenance Ltd | Builders | SA12 8AD | 2011 |
| Adj Plumbing & Property Services Ltd | Plumbing & heating | SA12 7NL | 2026 |
| Aj Plant Hire (Wales) Ltd | Builders | SA12 9UH | 2021 |
| Al'S Industrial Cleaners Ltd | Cleaners | SA12 7PH | 2002 |
| Ambertol Services Ltd | Electricians | SA12 7TF | 2015 |
| Aqua-Van Window Cleaning Ltd | Cleaners | SA12 9BY | 2016 |
| Ara Barbers Ltd | Hair & beauty | SA12 9BH | 2024 |
| Architectural Glass Specialists Ltd | Glaziers | SA12 7BR | 2016 |
| As Electrical (Sw) Ltd | Electricians | SA12 8EZ | 2023 |
| Ascot (Kitchen and Bedrooms) Ltd | Builders | SA12 8AJ | 2005 |
| Avon Sheeting Ltd | Roofers | SA12 7BR | 1996 |
| Baglan Bay Auto Centre Ltd | Garages & mechanics | SA12 7PT | 2019 |
| Bastion Fire Protection Ltd | Builders | SA12 6LP | 2026 |
| Baters Roofing Ltd | Roofers | SA12 9SU | 2016 |
| Bayview Aluminium Ltd | Builders | SA12 7BR | 2020 |
| Baz Fire Protection Ltd | Builders | SA12 8AD | 2018 |
| Big Perm Customs Ltd | Garages & mechanics | SA12 7PT | 2016 |
| Bradshaw'S Carpentry Ltd | Joiners & carpenters | SA12 7BR | 2026 |
| Brian Evans Floor Screeders Ltd | Builders | SA12 7PJ | 2016 |
| Bridgend Motor Services Ltd | Garages & mechanics | SA12 7BR | 2022 |
| C Install Ltd | Builders | SA12 6LF | 2020 |
| C Property Ltd | Builders | SA12 9AB | 2018 |
| Camjoy Construction & Utilities Ltd | Builders | SA12 6LP | 2019 |
| Ceinfan Associates Ltd | Garages & mechanics | SA12 8AD | 2007 |
| Charisma2026 Ltd | Hair & beauty | SA12 8AD | 2026 |
| Cmj Building Solutions Ltd | Builders | SA12 8BG | 2023 |
| Compliance Pest Control Ltd | Pest control | SA12 8DT | 2024 |
| Consulting Electrical Services Ltd | Electricians | SA12 7PT | 2023 |
| Craftsman Flooring Ltd | Flooring & tiling | SA12 7BT | 1980 |
| Cravagan Site Services Ltd | Builders | SA12 8HL | 2026 |
| Crigs-Rees Partnership Ltd | Builders | SA12 9AZ | 2021 |
| Crompton Autos Ltd | Garages & mechanics | SA12 9UU | 2020 |
| D&M Wolmark Building Contractors Ltd | Builders | SA12 9LP | 2017 |
| Danny West Tiling Ltd | Builders | SA12 6LF | 2016 |
| Davies Carpentry & Fire Protection Ltd | Joiners & carpenters | SA12 7PT | 2023 |
| Djw Electrical Ltd | Electricians | SA12 9AZ | 2021 |
| Dragon Auto Locksmith Ltd | Garages & mechanics | SA12 7BR | 2026 |
| Ecohub Solutions Ltd | Plumbing & heating | SA12 7BR | 2024 |
| Edwards Properties South Wales Ltd. | Builders | SA12 9BX | 2016 |
| Electri-Phase Ltd | Electricians | SA12 8AT | 2022 |
| Fergusons Window Systems Ltd | Glaziers | SA12 7BR | 2014 |
| Figo Barber (Port Talbot) Ltd | Hair & beauty | SA12 7ER | 2024 |
| Flexible Assessment and Training Services Ltd | Electricians | SA12 7EY | 2020 |
| Fox Roofing Ltd | Roofers | SA12 7PT | 2023 |
| Front Row Autos Ltd | Garages & mechanics | SA12 6HG | 2025 |
| G & B Body Repairs Ltd | Garages & mechanics | SA12 6NH | 2010 |
| G Hopkins Installations Ltd | Builders | SA12 9EE | 2017 |
| Gas South Wales Home Services Ltd | Plumbing & heating | SA12 7AX | 2015 |
| Gmo Ltd | Hair & beauty | SA12 9DQ | 2023 |
| Go Cleaning Service Ltd | Cleaners | SA12 6EB | 2021 |
| Gourlay Hire Ltd | Builders | SA12 9DB | 1992 |
| Green Cleaning Ltd | Cleaners | SA12 9NA | 2021 |
| Grounds For Learning Ltd | Gardeners & landscapers | SA12 8AB | 2022 |
| H & E Art Ltd | Hair & beauty | SA12 8AD | 2026 |
| H.H Building & Landscaping Ltd | Builders | SA12 7RY | 2025 |
| Hair Envy Hair Extensions Ltd | Hair & beauty | SA12 6UT | 2025 |
| Heatenergy Ltd | Plumbing & heating | SA12 7NL | 2020 |
| Hi-Speed Tyres (Nelson) Ltd | Garages & mechanics | SA12 7BR | 2021 |
| Hi-Speed Tyres (South Wales) Ltd | Garages & mechanics | SA12 7BR | 2011 |
| Ics Overlays Ltd | Builders | SA12 9BP | 2009 |
| Inspire Facilities UK Ltd | Builders | SA12 7BR | 2024 |
| Ionut Builders Ltd | Builders | SA12 6LY | 2026 |
| Izzystjoseph Ltd | Hair & beauty | SA12 6UX | 2026 |
| J.R.J Mechanical Ltd | Garages & mechanics | SA12 6UD | 2023 |
| Jency'S Beauty Care Ltd | Hair & beauty | SA12 6UD | 2026 |
| Kd Steelwork Ltd | Builders | SA12 9EQ | 2025 |
| Krane Engineering Ltd | Builders | SA12 7PT | 1997 |
| L & A Stonework Ltd | Builders | SA12 8EQ | 2023 |
| Life Electric Ltd | Electricians | SA12 8DF | 2026 |
| Llederw Ltd | Builders | SA12 9UR | 2016 |
| Lloyds Roofing Ltd. | Roofers | SA12 9NA | 2026 |
| Lmg Home Improvements Ltd | Builders | SA12 7BR | 2016 |
| Lmg Independent Bath Co Ltd | Electricians | SA12 7BR | 2026 |
| Lux Enhancements Ltd | Hair & beauty | SA12 7SS | 2025 |
| M A Frankcom Ltd | Builders | SA12 8YL | 2021 |
| M&J Monolith Construction Ltd | Builders | SA12 7NE | 2024 |
| Mabe Construction Ltd | Builders | SA12 8AF | 2025 |
| Margam Upvc Windows & Doors Ltd | Joiners & carpenters | SA12 7BY | 1997 |
| Md Electrical Power Ltd | Electricians | SA12 8AJ | 2017 |
| Melvin Rigging and Welding Ltd | Builders | SA12 7TN | 2019 |
| N D James Screed Services Ltd | Builders | SA12 7TT | 2024 |
| Next Chapter Removals Swansea Ltd | Removals | SA12 9EQ | 2026 |
| Nigel Trott Developments Ltd | Builders | SA12 6LF | 2018 |
| Para Property Investment Ltd | Builders | SA12 8DS | 2020 |
| Parc Ynni Cymunedol Alwen Cyfyngedig | Groundworks & demolition | SA12 7AX | 2018 |
| Performance Car Valeters Ltd | Garages & mechanics | SA12 8AD | 2002 |
| Premier Builders (Port Talbot) Ltd | Builders | SA12 7SS | 1996 |
| Prism Tiling Ltd | Plumbing & heating | SA12 7LE | 2022 |
| Pristine Finish Carpentry & Building Ltd | Builders | SA12 8AD | 2025 |
| Prosolar Electrical Ltd | Electricians | SA12 7AX | 2019 |
| R Bell Construction Ltd | Builders | SA12 8AD | 2011 |
| R Davies Ltd | Garages & mechanics | SA12 8AD | 2003 |
| R.E. Plant Hire Group Ltd | Builders | SA12 7UD | 2025 |
| R.E. Plant Hire Holdings Ltd | Builders | SA12 7TZ | 2016 |
| R.E. Plant Hire Ltd | Builders | SA12 7UD | 1974 |
| Rdw Carpentry Ltd | Joiners & carpenters | SA12 8AF | 2022 |
| Red Kite Homes Ltd | Builders | SA12 9YB | 2002 |
| Rhb Drain Services Ltd | Builders | SA12 9US | 2003 |
| Rhys Williams Ltd | Plumbing & heating | SA12 8ET | 2006 |
| Roberts Luxury Flooring Ltd | Flooring & tiling | SA12 9LR | 2025 |
| S&J Utilities Ltd | Builders | SA12 6LP | 2016 |
| S&S Cleaning Solutions Ltd | Cleaners | SA12 7ND | 2025 |
| Sa1 Driveways & Patio Specialists Ltd | Builders | SA12 7BE | 2023 |
| Salon Two Ltd | Hair & beauty | SA12 8AD | 2003 |
| Site Heat Treatment Services Ltd | Builders | SA12 6NH | 1981 |
| Site Smart Timber Frame Solutions Ltd | Builders | SA12 6HG | 2023 |
| Smc Marine Ltd | Builders | SA12 8AD | 2022 |
| Smooth Operators Screeding Ltd | Builders | SA12 7DR | 2026 |
| Soft Washing Wales Ltd | Cleaners | SA12 7BR | 2023 |
| South Wales Construction Ltd. | Joiners & carpenters | SA12 8BY | 2018 |
| South Wales Heritage Wood Revival Ltd | Painters & decorators | SA12 8EQ | 2026 |
| South Wales Joinery Co Ltd | Joiners & carpenters | SA12 7BR | 2026 |
| South Wales Towbars Ltd | Garages & mechanics | SA12 8AD | 2026 |
| Sw Autos & Repairs Ltd | Garages & mechanics | SA12 8BL | 2025 |
| T & T Contractors (Wales) Ltd | Builders | SA12 9UH | 2018 |
| Tawe Electrical Ltd | Electricians | SA12 7BR | 2023 |
| The Painterman Ltd | Painters & decorators | SA12 7BR | 2025 |
| Therma-Fit A Rated Home Improvements Ltd | Glaziers | SA12 7BR | 2013 |
| Timber Craft Solutions Ltd | Joiners & carpenters | SA12 8BL | 2025 |
| Trade Bay Frames Ltd | Glaziers | SA12 7BR | 2024 |
| Trail Logic Ltd | Builders | SA12 9TT | 2026 |
| Tyro Carpentry Ltd | Joiners & carpenters | SA12 7HB | 2025 |
| UK Retail Installers Ltd | Builders | SA12 6LF | 2026 |
| Uluc Hairdressers Ltd | Hair & beauty | SA12 6AX | 2020 |
| Vanguard Roofing & Cladding Ltd | Roofers | SA12 7AZ | 2015 |
| Vip Cleaning & Maintenance Services Ltd | Cleaners | SA12 8DS | 2023 |
| W.T. Mahoney Ltd | Builders | SA12 9LD | 2013 |
| Wayne Duggan Fine Turf Supplies Ltd | Gardeners & landscapers | SA12 8EL | 2014 |
| Wayne Home Improvements Ltd | Builders | SA12 6HG | 2026 |
| Wearne Warm Roof Specialist Ltd | Roofers | SA12 7AN | 2026 |
| Wearne Windows Ltd | Joiners & carpenters | SA12 7AN | 2020 |
| Welco & Son Roofing & Building Ltd | Builders | SA12 9PW | 2023 |
| Wps-UK Ltd | Builders | SA12 7AX | 2020 |
| Zrb Ltd | Electricians | SA12 8AJ | 2023 |