| 1ST Choice Windscreens Limited | Colchester | 2015 |
| 1ST City Fleet Sales Limited | London | 2021 |
| 1ST Class Accident Repairs Ltd | Nottingham | 2026 |
| 1ST Class Alloys (Hamilton) Limited | Hamilton | 2025 |
| 1ST Class Autocare Limited | Brighton | 2025 |
| 1ST Class Body Repairs Ltd | Pontyclun | 2016 |
| 1ST Class Building Supplies Limited | Bury St. Edmunds | 2025 |
| 1ST Class Car Valeting Limited | Bristol | 2024 |
| 1ST Class Cars Limited | Dereham | 2018 |
| 1ST Class Commercials Ltd | Birtley | 2024 |
| 1ST Class Corp Limited | Manchester | 2023 |
| 1ST Class Corporation Limited | Coventry | 2018 |
| 1ST Class Fruit and VEG Ltd | Hull | 2025 |
| 1ST Class Meat Ltd | Enfield | 2024 |
| 1ST Class MOT Centre Limited | Southport | 2009 |
| 1ST Class Recovery Limited | London | 2014 |
| 1ST Class Removals and Storage Ltd | Darlington | 2016 |
| 1ST Class Retail Ltd | Chesterfield | 2011 |
| 1ST Class Sports (UK) Ltd | Manchester | 2012 |
| 1ST Class Supplements Ltd | Mildenhall | 2024 |
| 1ST Class Trade Limited | London | 2021 |
| 1ST Class Trophies & Awards Limited | Glasgow | 2017 |
| 1ST Class Tyres & Autocare Limited | Lutterworth | 2005 |
| 1ST Class Uniforms & Workwear Ltd | Prestatyn | 2020 |
| 1ST Class-Auto Recovery Ltd | Leicester | 2024 |
| 1ST Clever Choice Ltd | Northampton | 2016 |
| 1ST Communications Installation and Maintenance Limited | Milton Keynes | 1995 |
| 1ST Containers (UK) Limited | Rainham | 2004 |
| 1ST Deer Limited | Slough | 2021 |
| 1ST Diamond Services Ltd | London | 2025 |
| 1ST Drive Automotive Ltd | Bristol | 2025 |
| 1ST Ecommerce Network Ltd | London | 2022 |
| 1ST Edition Tech Ltd | London | 2023 |
| 1ST Elite Motors Ltd | Bury | 2025 |
| 1ST Enterprise Ltd | London | 2023 |
| 1ST European Enterprises Limited | Birmingham | 2021 |
| 1ST European Trading Limited | Birmingham | 2021 |
| 1ST Event Luxury Travel Ltd | Leigh On Sea | 2005 |
| 1ST Express International Limited | London | 2023 |
| 1ST Fiftyfive UK Ltd | Nottingham | 2025 |
| 1ST First Limited | Bury St. Edmunds | 2020 |
| 1ST Fit Tyre Centre Newport Ltd | Newport | 2025 |
| 1ST Fittings Limited | New Romney | 2008 |
| 1ST FIX (South) Limited | Dorset | 2007 |
| 1ST FIX Systems Ltd. | Sacriston | 1999 |
| 1ST for Beds (NI) Ltd | Belfast | 2017 |
| 1ST for Fabrics Ltd | Newcastle Upon Tyne | 2003 |
| 1ST for Floors Limited | Verwood | 2015 |
| 1ST for Golf Limited | Grimsby | 2004 |
| 1ST Fresh Foods Ltd | Mitcham | 2013 |
| 1ST Galaxy Group Limited | Nottingham | 1999 |
| 1ST Gear Autos Ltd | Barnsley | 2023 |
| 1ST Gear Motors North East Ltd | Newcastle Upon Tyne | 2017 |
| 1ST Glass Ltd | Edinburgh | 2023 |
| 1ST Glass Windows Limited | Whyteleafe | 1997 |
| 1ST Glass Windscreens and Tinting Services Ltd | Inverness | 2025 |
| 1ST Glass Windscreens Cheshire Limited | Stoke-On-Trent | 2022 |
| 1ST Grocery Convenience Store Limited | Blackpool | 2025 |
| 1ST GTI Limited | Hook | 1995 |
| 1ST Headstone Tyre Ltd | Harrow | 2026 |
| 1ST Health Products Ltd | St. Asaph | 2012 |
| 1ST Impressions (Bath) CIC | Bath | 2021 |
| 1ST in Auto-Locks Limited | Colchester | 2004 |
| 1ST International Limited | London | 2021 |
| 1ST JRS Limited | Rotherham | 2019 |
| 1ST KBB Ltd | Banbury | 2022 |
| 1ST Kids Wholesale Limited | Dagenham, Essex | 2019 |
| 1ST Legacy Limited | Romney Marsh | 2012 |
| 1ST Line Motors Ltd | Bradford | 2026 |
| 1ST Line Vehicles Ltd | Hounslow | 2025 |
| 1ST Machine Tool Accessories Limited | Salisbury | 1997 |
| 1ST Machinery Auctions Limited | Coventry | 2009 |
| 1ST Mall Ltd | Reading | 2021 |
| 1ST Manicmotorcycles Limited | Spalding | 2014 |
| 1ST Mark Limited | Warrington | 2005 |
| 1ST Mobile Tyre Fitting Ltd | London | 2025 |
| 1ST Motorbike Repairs Limited | Watford | 2019 |
| 1ST Motors Ltd | Leeds | 2026 |
| 1ST MR Clutch Limited | Ilford | 2008 |
| 1ST MX Limited | Leyland | 2003 |
| 1ST Next Stop Store Ltd | Castleford | 2026 |
| 1ST Online Store Ltd | Leicester | 2024 |
| 1ST Performance & Exhausts Limited | Norwich | 2016 |
| 1ST Point Communications Ltd | Worcester | 2014 |
| 1ST Portal Network Limited | St. Helens | 2007 |
| 1ST Prelude Ltd | Mansfield | 2024 |
| 1ST Premier Base Ltd | Manchester | 2018 |
| 1ST Quality Automotive Limited | Chingford | 2017 |
| 1ST Quality Parts Ltd | Stockport | 2019 |
| 1ST Rapid Services Ltd | Camberwell | 2020 |
| 1ST Rate Comms Ltd | Eastbourne | 2011 |
| 1ST Rate Products (Midlands) Ltd | Leicestershire | 2004 |
| 1ST Rescue and Recovery Services Ltd | Bolton | 2024 |
| 1ST Ride Performance Ltd | Wolverhampton | 2023 |
| 1ST Ruggy Store Ltd | Glasgow | 2026 |
| 1ST Scenic Limited | Orpington | 2003 |
| 1ST Site Limited | Crediton | 2000 |
| 1ST Smart Tech Ltd | Slough | 2025 |
| 1ST Southsea Mini Market Ltd | Southsea | 2026 |
| 1ST Souvenirs Limited | Harrow | 2001 |