| Colony Sea Sky Ltd | London | 2018 |
| Colophon & Lavengro Print Limited | Middlesex | 1994 |
| Colophon Print & Design Limited | Bolton | 2015 |
| Color & Co UK Ltd. | London | 2021 |
| Color Box Limited | Kent | 1996 |
| Color Brocade Catering Ltd | Norwich | 2024 |
| Color Factory Ltd. | Oldham | 2015 |
| Color House Ltd | London | 2022 |
| Color on SET Ltd | Glasgow | 2026 |
| Color Steels Limited | Newport | 2022 |
| Color Touch Decor Ltd | London | 2024 |
| Color-Board Limited | Sawbridgeworth | 1958 |
| Color-Clad Fabrications Limited | Newport | 2024 |
| Color-Pave Ltd | Stockport | 2001 |
| Colorado Ltd | Rochdale | 2025 |
| Colorblind Limited | London | 2025 |
| Colorcery Limited | Rochdale | 2025 |
| Colorcon Limited | Dartford Kent | 1971 |
| Colorcote (Norfolk) Limited | Norwich | 1985 |
| Colordyne Limited | London | 2014 |
| Colored Gemstone Research Laboratory Limited | Cardiff | 2022 |
| Coloredge UK Limited | London | 2023 |
| Colorful Catering Ltd | Leeds | 2024 |
| Colorful Panda Ltd | Newcastle | 2022 |
| Colorgram Designs UK Ltd | Slough | 2024 |
| Coloriquo Limited | Manchester | 2026 |
| Colorite Europe Limited | Belfast | 1996 |
| Colormagic Ltd | Chelmsford | 2022 |
| Colormath Limited | Manchester | 2021 |
| Colormatrix Europe Limited | Knowsley | 1993 |
| Colormax New Materials Co., Ltd. | London | 2024 |
| Colorminium (London) Ltd | Chelmsford | 2010 |
| Colorolicious Ltd | Manchester | 2024 |
| Coloroll Limited | Grange-Over-Sands | 2020 |
| Colorphaze Limited | Northampton | 1988 |
| Colorplas Limited | Stockport | 1991 |
| Colors of Hope Studios Limited | Ipswich | 2025 |
| Colorscan Imaging Products Limited | Burton-On-Trent | 1981 |
| Colorset North Ltd | Bakewell | 2018 |
| Colorsolve Limited | Glasgow | 1999 |
| Colorstock Coated Steels Ltd. | Wolverhampton | 2018 |
| Colortec (Wessex) Limited | Andover | 2002 |
| Colorville Ltd | Eastbourne | 2022 |
| Colorway Blinds Limited | Cleckheaton | 1997 |
| Colorway Graphics UK Limited | Birmingham | 2013 |
| Colour & Grey Ltd | London | 2019 |
| Colour (Yorkshire) Ltd | Hebden Bridge | 2004 |
| Colour 2 Glass Kitchen Splashbacks Ltd | Liverpool | 2019 |
| Colour 2 Glass Splashbacks Ltd | Liverpool | 2015 |
| Colour Anodising Ltd | Croydon | 1938 |
| Colour Booth Limited | Hemel Hempstead | 1989 |
| Colour Box Printing Ltd | London | 2009 |
| Colour Business Solutions Limited | Dudley | 2002 |
| Colour Calendars Ltd | Newton Abbot | 2008 |
| Colour Catch Liquid Wraps Ltd | Newent | 2016 |
| Colour Clad Fabrications Ltd | Axbridge | 2024 |
| Colour Clad Profiles Ltd | Rooksbridge | 2018 |
| Colour Coat Flashings Ltd | Newport | 2025 |
| Colour Coatings (South East) Limited | West Malling | 2002 |
| Colour Coatings Limited | Chester | 1999 |
| Colour Code Powder Coating Limited | Salford | 2010 |
| Colour Command & Combat Ltd | Nottingham | 2020 |
| Colour Company (Southampton ) Limited | Eastleigh | 2002 |
| Colour Copy Leeds Limited | Leeds | 2023 |
| Colour Cottage Limited | Birmingham | 2021 |
| Colour Data UK Ltd | Crawley | 2005 |
| Colour Drop Studio Limited | London | 2017 |
| Colour Earth Limited | St Austell | 2024 |
| Colour Factory Kent Limited | Gravesend | 2021 |
| Colour Flex Labels Limited | Hinckley | 2006 |
| Colour Flow UK Limited | Hull | 2002 |
| Colour Flux Limited | Nottingham | 2025 |
| Colour Graphics Ltd | Walsall | 2003 |
| Colour in Media Limited | Stockport | 2017 |
| Colour Inc Limited | Basingstoke | 2002 |
| Colour Marketing Services Limited | Brighton | 2006 |
| Colour Match Services Ltd | Swansea | 2021 |
| Colour Match UK Ltd | Leeds | 2004 |
| Colour MAX Limited | Chessington | 2010 |
| Colour My Wall Ltd | Chertsey | 2025 |
| Colour N Cover Ltd | Benfleet | 2016 |
| Colour of the Wind Ltd | London | 2024 |
| Colour Plastic Cards Limited | Nantwich | 2006 |
| Colour Point Studio Ltd | Newmarket | 2004 |
| Colour Presentations Limited | Liverpool | 2009 |
| Colour Print Direct Limited | Brighton | 2010 |
| Colour Print Management Ltd | Clevedon | 2002 |
| Colour SPY Ltd | Bradford | 2022 |
| Colour Steels Limited | Newport | 2022 |
| Colour Stone Catering Ltd | Nottingham | 2024 |
| Colour Studios Limited | Radstock, Bath | 1999 |
| Colour Superior Limited | Welling | 2018 |
| Colour Tone Masterbatch Limited | High Peak | 1996 |
| Colour Transfers Limited | Birmingham | 2025 |
| Colour Zone Print Group Limited | Hounslow | 2024 |
| Colour-Pro Powder Coatings Limited | Bromsgrove | 2010 |
| Colouration Limited | Weybridge | 2001 |
| Colourblinds a ND Shutters Ltd | Pudsey | 2026 |
| Colourbond (the Printers) Limited | Billericay | 2016 |
| Colourbond Design & Print Limited | Billericay | 2016 |