| Conn Artists Theatre Company Limited | Worthing | 2015 |
| Conn Iggulden Ltd | Rickmansworth | 2025 |
| Connah's Quay Nomads Foundation | Malpas | 2016 |
| Connahs Quay Bowling Club CIC | Flint | 2025 |
| Connahs Quay Nomads FC Ltd | Malpas | 1989 |
| Connaught Artists Management Ltd. | London | 1994 |
| Connaught Brass Ltd | Woking | 2026 |
| Connaught Garage Brookwood Limited | Chertsey | 1985 |
| Connaught Leisure Limited | Worthing | 1980 |
| Connect & Create Vibez Ltd | Cardiff | 2022 |
| Connect Community Groups CIC | Lytham St. Annes | 2023 |
| Connect Contemporary Choir Limited | Glasgow | 2018 |
| Connect Dance Academy Limited | Liverpool | 2020 |
| Connect Dance Company Ltd | Glasgow | 2023 |
| Connect Fitness and Mobility Ltd | Liverpool | 2026 |
| Connect Fitness Classes Limited | Suite 3653 | 2021 |
| Connect Fitness Limited | Ballyclare | 2019 |
| Connect Northwest CIC | Widnes | 2024 |
| Connect Padel UK Limited | London | 2022 |
| Connect Pilates Dunmow Ltd | Dunmow | 2024 |
| Connect the Tots Ltd | Preston | 2026 |
| Connect US Academy CIC | Coventry | 2021 |
| Connect-Conserve Cymru / Cyswllt-Cadwraeth Cymru Community Interest Company | Carmarthen | 2021 |
| CONNECT2PADEL Limited | Stafford | 2024 |
| Connected Coaching NI Ltd | Craigavon | 2022 |
| Connected Fitness Ltd | Lurgan | 2018 |
| Connecting Canvases Ltd | Bramfield | 2020 |
| Connecting DE Dots CIC | London | 2024 |
| Connecting Dots Events Limited | Manchester | 2026 |
| Connecting Dots Group Ltd | Manchester | 2022 |
| Connecting Roma Middlesbrough C.I.C. | Bradford | 2024 |
| Connecting Vibes* | London | 2003 |
| Connection Ticketing Limited | Pimlico | 2020 |
| Connections by B Ltd | Pontypool | 2025 |
| Connections Entertainment Limited | Norwich | 2016 |
| Connector Media Community Interest Company | Bolton | 2007 |
| Connell Drummond Holdings Ltd | Kilmarnock | 2022 |
| Connellan's Castles Ltd | Nottingham | 2026 |
| Connexa Media Group Ltd | Edinburgh | 2025 |
| Connie July Consultancy Ltd | London | 2023 |
| Connie's Collective Limited | Witney | 2025 |
| Connoisseurcollective Limited | Ilford | 2019 |
| Connoisseurs of Music CIC | Nottingham | 2026 |
| Connolly Diving Limited | | 1987 |
| Connor Beasley Ltd | Darlington | 2025 |
| Connor Brace Racing Limited | Evesham | 2021 |
| Connor Coaching Ltd | Liverpool | 2021 |
| Connor Coghill Ltd | Hull | 2019 |
| Connor Dearn MMA Ltd | Altrincham | 2025 |
| Connor Dunlavey Fitness Academy Limited | Newton Aycliffe | 2025 |
| Connor Hall Fitness Limited | Batley | 2026 |
| Connor Mcgillivray Ltd | Inverness | 2021 |
| Connor Mcgowan Training Ltd | Bo'Ness | 2022 |
| Connor Minney Limited | London | 2019 |
| Connor Mitchell Limited | Leigh-On-Sea | 2025 |
| Connor Rees PT Limited | Altrincham | 2023 |
| Connor Smither Music Ltd | Carshalton | 2025 |
| Connorcarleigh Limited | Brierley Hill | 2025 |
| Connors Toy Libraries | Portsea, Portsmouth | 2009 |
| Connorthedmdguy Ltd | London | 2023 |
| Connor’S Coaching Consultation Ltd | Corby | 2024 |
| Cono SUR Football Ltd | London | 2025 |
| Conor Breen Ltd | London | 2016 |
| Conor Coady Academy Limited | Pride Park | 2023 |
| Conor Devir Fitness Coach Ltd | Derry | 2024 |
| Conor Hammil Limited | London | 2011 |
| Conor Inskip Fitness Studios Ltd | Sandy | 2025 |
| Conor Maclay Production Ltd | Bradwell | 2024 |
| Conor Moran Transformation Coaching Ltd | Auchterarder | 2023 |
| Conor O'Farrell Racing Ltd | Penrith | 2014 |
| Conor O'Neil Golf Limited | Glasgow | 2013 |
| Conor Paul & Associates Limited | London | 2025 |
| Conor Rogers Artist Ltd | Doncaster | 2021 |
| Conor Sanchez Ltd | London | 2026 |
| Conor Washington Elite Attacking Coaching Limited | Brierley Hill | 2024 |
| Conquer Fitness Events Limited | Crewe | 2024 |
| Conquer Fitness Ormskirk Ltd | Ormskirk | 2024 |
| Conquer Leisure CIC | Dartford | 2021 |
| Conquered Hearts Ltd | Hockley | 2025 |
| Conqueror Darts Academy CIC | St. Leonards-On-Sea | 2026 |
| Conquest Experience Limited | London | 2011 |
| Conquest Martial Arts Ltd. | Sidcup | 2017 |
| Conquest Trading Limited | Croydon | 2016 |
| Conquest Valley Motorsport Ltd | Bedford | 2021 |
| Conquest Writing Limited | Ashbourne | 2023 |
| Conrad Belfort Limited | Fareham | 2016 |
| Conrad Cross Ltd | Bromley | 2025 |
| Conrad Davies Company Limited | Leeds | 2003 |
| Conrad Mewse Limited | Somerton | 2020 |
| Conrad Welch Freelance Ltd | Chislehurst | 2014 |
| Conrod Racing Ltd | Maidstone | 2016 |
| Conrwall Comps Ltd | London | 2026 |
| Consall Valley Sporting Club Limited | Cheltenham | 2024 |
| Conscious Club Events Ltd | Budleigh Salterton | 2025 |
| Conscious Dreams Ltd | London | 2026 |
| Conscious Sleep Ltd | London | 2025 |
| Conscious Studio Pottery Ltd | Sittingbourne | 2025 |
| Conscript Theatre Ltd | London | 2026 |
| Conservation Consultants Ltd | Leatherhead | 2025 |
| Conservation Gilding Ltd | Liverpool | 2012 |