| Cape Wrath Ltd | Keswick | 2026 |
| Caped Crusaders Parties Ltd | London | 2025 |
| Capeesh (Liverpool) CIC | Liverpool | 2017 |
| Capel Celf Community Interest Company | Llandeilo | 2025 |
| Capel Salem Arts Limited | Pwllheli | 2025 |
| Capel Salem CYF | Pwllheli | 2025 |
| Capella Academy of Dance Limited | Coventry | 2016 |
| Capella Songs Limited | Bristol | 2017 |
| Capella Sports Ventures Ltd | Milton Keynes | 2016 |
| Capenhurst Festival Limited | Chester | 2025 |
| Caper Ceilidh Dance School Limited | St. Albans | 2017 |
| Caperin Limited | Bristol | 2005 |
| Capes & Crowns Ltd | London | 2025 |
| Capgras Theatre Company Ltd | London | 2025 |
| Capisco Limited | London | 1989 |
| Capital 8 Music Limited | London | 2022 |
| Capital Academy of Gymnastics Limited | Cardiff | 2026 |
| Capital Academy of Sport Limited | Cardiff | 2011 |
| Capital AGE Arts Ltd. | London | 2005 |
| Capital Allstars Cheer & Dance C.I.C. | City Of Edinburgh | 2018 |
| Capital Choir Limited | London | 2011 |
| Capital Cues Limited | Rochford | 2006 |
| Capital Events (Walton) Limited | Ditton | 1988 |
| Capital Events Management Ltd | Cardiff | 2008 |
| Capital Karts Star City Limited | Birmingham | 2023 |
| Capital Kids Limited | London | 2023 |
| Capital Mini Gym CIC | Cardiff | 2022 |
| Capital Sound Collective Ltd | Livingston | 2025 |
| Capital TEE Ltd | Waltham Abbey | 2022 |
| Capital Theatres | Midlothian | 1991 |
| Capital Theatres King's Limited | Edinburgh | 2017 |
| Capital Theatres Trading Limited | Midlothian | 1991 |
| Capital Trading Company (Technical & Supplies) Limited | London | 1990 |
| Capitall Marquees Limited | Wickford | 2004 |
| Capitol Cinemas Limited | Birmingham | 2018 |
| Capitol Fitness Limited | St. Helens | 2021 |
| Capitol Stage Limited | London | 2024 |
| Capitol Theatre Trust CIC | Scarborough | 2026 |
| Capitolian Limited | | 1986 |
| Capo Collective Ltd | London | 2025 |
| Capoeira Flow Limited | Basingstoke | 2012 |
| Capoeira Marazul Limited | Southampton | 2007 |
| Capoeira Nottingham CIC | Nottingham | 2010 |
| Capone City Entertainment Ltd | Taunton | 2019 |
| Cappagh Capital Limited | Dover | 2013 |
| Cappella Nova | Glasgow | 1986 |
| Cappelli Elkington Ltd | Shrewsbury | 2018 |
| Cappuccino Cycling Club Limited | Harrogate | 2014 |
| Capreolus Club Ltd | London | 2015 |
| Caprica Investments Ltd | Northwood | 2017 |
| Caprice Enterprises Limited | Kingston Upon Thames | 1997 |
| Caprice Production Company Limited | Chelmsford | 2026 |
| Capricorn Adventure Limited | Penketh | 2013 |
| Capricorn Fitness Ltd | Fochabers | 2016 |
| Capricorn Giveaways Ltd | Bromsgrove | 2025 |
| Caprington Community Golf Club | Kilmarnock | 2015 |
| Capsen Development Corporation Ltd | London | 2025 |
| Capsey Enterprises Ltd | Knutsford | 2023 |
| Capstone Entertainment Ltd | Bristol | 2021 |
| Capstone Music Limited | London | 2010 |
| Capstone Sports Management Limited | Cardiff | 2007 |
| Capsule Events Limited | Birmingham | 2010 |
| Capsule UK Limited | Birmingham | 2002 |
| Captain Chaos Ltd | Yeovil | 2017 |
| Captain Cymru Foundation Limited | Tenby | 2016 |
| Captain Fantastic DA Limited | London | 2025 |
| Captain Fantastic East Anglia Ltd | Colchester | 2022 |
| Captain Fantastic Franchise Limited | Uxbridge | 2015 |
| Captain Fantastic Kent Ltd | Westerham | 2020 |
| Captain Greens Craigavon Ltd | Newry | 2018 |
| Captain Greens Ltd | Newry | 2018 |
| Captain Jack's Adventure Limited | Lutterworth | 2008 |
| Captain Kidd's Pirate Experience Ltd | Potters Bar | 2019 |
| Captain Koma Ltd | London | 2024 |
| Captain Kris Ltd | London | 2015 |
| Captain Leisure Limited | Southwark | 2021 |
| Captain Moose Limited | Liss | 2017 |
| Captain Saab Ltd | Hayes | 2025 |
| Captain Teemo Entertainment Ltd | London | 2015 |
| Captain's Badge Ltd | Borehamwood | 2025 |
| Captain's Garden CIC | Deal | 2024 |
| Captain's Lane Community Centre C.I.C. | Wigan | 2024 |
| Captains Clubhouse Ltd | Cardiff | 2025 |
| Captains Cricket Academy Ltd | London | 2019 |
| Caption Small Press & Indie Comics Festival CIC | Oxford | 2025 |
| CAPTIV8 Productions Limited | Tonbridge | 2012 |
| Captivate Liverpool CIC | Liverpool | 2022 |
| Captivate Theatre Limited | Edinburgh | 2014 |
| Captivated EYE Limited | Gloucester | 2025 |
| Captivating Creatures Ltd | Rotherham | 2020 |
| Captive Audience Ltd | Belper | 2017 |
| Captive Experiences Limited | Bexhill-On-Sea | 2023 |
| Captive Hospitality Ltd | London | 2026 |
| Captive Light Ltd | London | 2015 |
| Capture & Calm Walks CIC | Stockport | 2025 |
| Capture the Chaos Events Ltd | London | 2026 |
| Capulet Ltd | Berkhamsted | 2023 |
| Capyland Limited | London | 2026 |
| Caqt Fitness Ltd | London | 2024 |
| Car and Leisure Limited | Mansfield | 2005 |