| Camberley Cakes Ltd | Wholesale & retail | 2025 |
| Cambria Capital Ltd | Financial services | 2016 |
| Cambria Wealth Management Ltd | Financial services | 2018 |
| Cambridge Car Breakers Ltd | Wholesale & retail | 2021 |
| Cambridge Insight Consulting Limited | Professional & scientific | 2022 |
| Cambridge Kitchen & Bathroom Company Limited | Construction | 2019 |
| Cambridge MI Limited | Information & communication | 2015 |
| Cambridge Pathogenics Ltd | Health & social care | 2014 |
| Cambridge Sikh Society Ltd | Other services | 2011 |
| Cambridge Supply Chain Partners Ltd | Professional & scientific | 2015 |
| Cambridge Swimming Academy Ltd | Extraterritorial | 2011 |
| Cambys Couriers Ltd | Administrative & support | 2019 |
| Camclad Group Limited | Financial services | 2025 |
| Camclad Special Projects Limited | Manufacturing | 2025 |
| Cameron Clinical Consulting Limited | Other services | 2023 |
| Cameronmontgomery Ltd | Professional & scientific | 2025 |
| Camford Court (Kempston) Management Limited | Households | 1977 |
| Camgenix Limited | Information & communication | 2002 |
| Camilla Lashes Ltd | Other services | 2025 |
| Camille & Renee Company Ltd | Administrative & support | 2010 |
| Cammod Ltd | Financial services | 2023 |
| Campbell ARK Limited | Professional & scientific | 2011 |
| Camperdown Consulting Ltd | Professional & scientific | 2019 |
| Canabiotics Ltd | Wholesale & retail | 2019 |
| Candid Services Ltd | Real estate | 2024 |
| Candour Online Ltd | Wholesale & retail | 2026 |
| Canisclass Limited | | 1991 |
| Cann Electrical Ltd | Construction | 2017 |
| Cannons Cuts Ltd | Other services | 2022 |
| Cannyheat UFH Ltd | Construction | 2025 |
| Canoe Trail Ltd | Administrative & support | 2005 |
| Canons Close (Wootton) Residents Limited | Households | 2007 |
| Canopy Tree Specialists Limited | Agriculture & fishing | 2023 |
| Canter Equine Assisted Learning & Psychotherapy C.I.C. | Health & social care | 2018 |
| Canton (Bedford) Limited | Hospitality | 2016 |
| Caofinance Ltd | Administrative & support | 2023 |
| Caoholdings Ltd | Information & communication | 2019 |
| Capable Healthcare Ltd | Administrative & support | 2023 |
| Capal Associates Ltd | Professional & scientific | 2014 |
| Capital Concrete Construction Ltd | Construction | 2010 |
| Capital F Global Ltd | Information & communication | 2026 |
| Capital Financial FS Ltd | Financial services | 2019 |
| Capital Phoenix Limited | Professional & scientific | 2025 |
| Capp Lettings Ltd | Real estate | 2025 |
| Cappo Bar Ltd | Hospitality | 2019 |
| Cappuccino Bar Ltd | Hospitality | 2024 |
| Capricorn Projects Ltd | Wholesale & retail | 2019 |
| Capsi IT Solutions Limited | Information & communication | 2013 |
| Capstone Central Limited | Administrative & support | 2026 |
| Capture Sporting Moments CIC | Professional & scientific | 2026 |
| Capturemyheart Photography Ltd | Professional & scientific | 2021 |
| Car Lane Motors Limited | Wholesale & retail | 2025 |
| Car Repair Andrzej Heberlein Ltd | Wholesale & retail | 2020 |
| Car Vault 24 Ltd | Wholesale & retail | 2025 |
| Cara Marshall Hypnotherapy Ltd | Health & social care | 2026 |
| Carbon Radar Ltd | Professional & scientific | 2024 |
| Carcopia Ltd | Administrative & support | 2026 |
| Card Buddies Ltd | Wholesale & retail | 2024 |
| Cardington Airship Project Limited | Manufacturing | 2013 |
| Cardington Studio Services Ltd | Arts & recreation | 2024 |
| Cardington Trading Limited | Real estate | 2012 |
| Care Property Consultants Limited | Administrative & support | 2019 |
| Care Solutions 365 Ltd | Administrative & support | 2018 |
| Carecruiter Ltd | Administrative & support | 2025 |
| Career Match Ltd | Administrative & support | 2023 |
| Carelinks Consultancy Services Ltd | Professional & scientific | 2024 |
| Carelyn Ltd | Health & social care | 2024 |
| Carers in Bedfordshire | Health & social care | 2010 |
| Careville Limited | Health & social care | 2018 |
| Careville Services Limited | Health & social care | 2024 |
| Carexl Cleaning Limited | Administrative & support | 2026 |
| Carey's Plastering Systems Limited | Construction | 2023 |
| Cargo Travel Global Ltd | Administrative & support | 2019 |
| Carillon Industrial Services Limited | Other services | 1980 |
| Carinci Professional Services Ltd | Manufacturing | 2022 |
| Caring With Kindness Ltd | Health & social care | 2022 |
| Caritas Primary Care Network Limited | Health & social care | 2021 |
| Cariva Care Limited | Other services | 2025 |
| Carl Lewis Studio Ltd | Information & communication | 2020 |
| Carles Properties Limited | Real estate | 2012 |
| Carlow Construction Ltd | Real estate | 2024 |
| Carlow Plant and Commercials Ltd | Wholesale & retail | 2004 |
| Carlton Packaging Holdings Ltd | Financial services | 2022 |
| Carlton Village Shop Limited | Wholesale & retail | 2025 |
| Carmar Consultants - the Professional Standard Limited | Professional & scientific | 2017 |
| Carnegie Crescent (Maulden) Management Company Ltd | Real estate | 2022 |
| Carofano Property Investments Ltd | Real estate | 2025 |
| Carol Jarvis Ltd | Arts & recreation | 2025 |
| Carol Straughan Hairdressing Limited | Other services | 2017 |
| Caroline Jane Ltd | Professional & scientific | 2016 |
| Caroline’S Childcare Limited | Health & social care | 2026 |
| Carolkikii Limited | Health & social care | 2022 |
| Carpathia Solutions Ltd | Information & communication | 2011 |
| Carpe Creative Limited | Professional & scientific | 2015 |
| Carpenters 4U Ltd | Construction | 2013 |
| Carpets 4 Less (NO. 1) Ltd | Wholesale & retail | 2009 |
| Carpets 4 Less Ltd | Wholesale & retail | 2001 |
| Carrea Barbers Ltd | Other services | 2024 |
| Carrozza Ltd | Professional & scientific | 2018 |
| Carrs Gardens Property Management Limited | Households | 2009 |