| Byte Cure Ltd | London | 2024 |
| Byte Projects Ltd | London | 2017 |
| Byte Service Center Limited | Romsey | 2009 |
| Bytecare+ Ltd | Ascot | 2025 |
| Bytek Ltd | London | 2024 |
| Byteworks Limited | Felixstowe | 2018 |
| Bytiannaa Ltd | Walsall | 2025 |
| Bytla Ltd | Bromley | 2023 |
| Bytomic TKD SIX Limited | Droitwich | 2001 |
| Bytylerjoi Limited | Manchester | 2024 |
| Byvikistudio Ltd | Reading | 2025 |
| Byvipmen Hairdresser Service Ltd | London | 2025 |
| Bywest Limited | Swanley | 2000 |
| Byyi Ouanzar Limited | London | 2025 |
| Byzantine ZOO Limited | Aylesbury | 2014 |
| Byzantium Limited | | 1999 |
| Byzgen Global Limited | Rye | 2025 |
| Byzylivin Ltd | Bradford | 2021 |
| BZ Auto's and Tyres Limited | Luton | 2022 |
| BZ Beauty Studio Ltd | Rochdale | 2025 |
| BZ Mechanics Limited | Luton | 2016 |
| Bzbeauty Ltd | Clacton-On-Sea | 2026 |
| BZH Associates Limited | London | 2019 |
| Bámia International Ltd | London | 2022 |
| B’Luxe Limited | Hove | 2022 |
| B’S Beauty Blend Ltd | Harrow | 2025 |
| C & a Funeral Services Ltd. | Prestonpans | 2011 |
| C & a Investment Partners Ltd | London | 2024 |
| C & a Team Ltd | Bradford | 2012 |
| C & B Beautiful Limited | Saffron Walden | 2009 |
| C & B Business Services Ltd | Hartlepool | 2022 |
| C & C Associates Hoylake Ltd | Wirral | 2017 |
| C & C Cleaning Services Ltd | Hove | 2002 |
| C & C Couriers Ltd | Derby | 2017 |
| C & C Hair Co Limited | Middlesbrough | 2002 |
| C & C Laundry Services Limited | Wembley | 2017 |
| C & C Nails Ltd | London | 2023 |
| C & C Office Cleaning Limited | Cleckheaton | 2010 |
| C & C Purton Limited | Swindon | 2024 |
| C & D Cabs Limited | Broxburn | 2001 |
| C & D Fork Trucks Limited | Stevenage | 2004 |
| C & D Logistics South East Limited | Penrith | 1999 |
| C & D Partnership Limited | Milton Keynes | 2001 |
| C & D Properties (Liverpool) Ltd | Liverpool | 2008 |
| C & D Remedials Ltd | Peterlee | 2023 |
| C & D Windscreens Limited | Brandon | 2017 |
| C & DC Solutions Limited | Mansfield | 2022 |
| C & F Black Ltd | London | 2024 |
| C & F Bright Solutions Limited | Petersfield | 2004 |
| C & G Eastleigh Ltd | Eastleigh | 2019 |
| C & G Keary Limited | Stockport | 2017 |
| C & G Launderettes Limited | Norwich | 2021 |
| C & G Nail Bar Ltd | London | 2018 |
| C & G Nails Spa Ltd | Manchester | 2026 |
| C & G Recycling Limited | Morecambe | 2003 |
| C & H Horne Limited | Peterhead | 2015 |
| C & H Laundry Services Limited | Derby | 2004 |
| C & I Hairdressing Limited | Norwich | 2018 |
| C & J Aesthetics Limited | Retford | 2024 |
| C & J Castings Limited | Coventry | 2007 |
| C & J Denson Ltd | Burnley | 2021 |
| C & J Electrical (Southwest) Ltd | Malmesbury | 2006 |
| C & J Legal Associates Limited | Falkirk | 2018 |
| C & J Legal Consultancy Limited | Falkirk | 2019 |
| C & J Management Services Limited | Falkirk | 2019 |
| C & J Marine Holdings (Southern) Limited | Chichester | 2012 |
| C & J Marine Limited | Chichester | 2003 |
| C & J Recycling Limited | Solihull | 2010 |
| C & J Restaurants Limited | Ruislip Manor | 2014 |
| C & K Access Platforms Ltd | Wakefield | 2018 |
| C & K Beauty Ltd | Colwyn Bay | 2016 |
| C & K Collective Ltd | Worksop | 2025 |
| C & K Fencing Limited | Stafford | 2015 |
| C & K Nail Bar Ltd | Keighley | 2024 |
| C & K Services (UK) Limited | Northampton | 2005 |
| C & L Aesthetics Hucknall Ltd | Burton On Trent | 2020 |
| C & L Landscape Gardeners Limited | Westcliff On Sea | 2010 |
| C & M (Manchester) Limited | Wrexham | 2007 |
| C & M Aesthetics Ltd | Ilkeston | 2023 |
| C & M Cosmetic Make-Up Limited | Stockport | 2016 |
| C & M Fleming Builders & Landscapes Limited | Glasgow | 2020 |
| C & M Hair and Beauty Ltd | Warrington | 2012 |
| C & M Lumsden Ltd | Insch | 2014 |
| C & M Mckenzie Ltd. | Peterhead | 2010 |
| C & M Pristine Detailing Limited | Hamilton | 2023 |
| C & M Removals (Kidderminster) Limited | Kidderminster | 2012 |
| C & N Salons Limited | Ribchester | 2015 |
| C & N Star Barbers Limited | London | 2023 |
| C & P (UK) Ltd | Billericay | 2010 |
| C & P Jewellers Limited | Nottingham | 2014 |
| C & P Nails Spa Ltd | Stockport | 2026 |
| C & R Furnishings Limited | Rugeley | 2020 |
| C & R Holdings (Midlands) Limited | Lichfield | 2017 |
| C & R Salons Ltd | Eastleigh | 2022 |
| C & R Testing Limited | Rochdale | 2003 |
| C & S Bragg Ltd | Haverhill | 2015 |
| C & S Caravan Services Limited | Accrington | 2000 |
| C & S Care Services Ltd | Chester | 2000 |
| C & S Church ORI OKE Itusile AYO | London | 2018 |
| C & S Desiccants Limited | Crewe | 2018 |