| Care Cycle Ltd | Health & social care | 2019 |
| Care Ease Limited | Health & social care | 2023 |
| Care First Medicals Limited | Health & social care | 2020 |
| Care Futures Limited | Extraterritorial | 2006 |
| Care GAS Limited | Construction | 2020 |
| Care Good Limited | Health & social care | 2016 |
| Care Input Plus Services Limited | Health & social care | 2025 |
| Care Interest Limited | Health & social care | 2025 |
| Care Lift Ltd | Administrative & support | 2024 |
| Care Navigation Ltd | Health & social care | 2018 |
| Care Service Ability Ltd | Health & social care | 2024 |
| Care Solutions 247 Ltd | Administrative & support | 2022 |
| Care Specialist Services Limited | Administrative & support | 2013 |
| Care Unite Ltd | Health & social care | 2017 |
| Care With Patience Ltd | Health & social care | 2023 |
| CARE2GO Ltd | Professional & scientific | 2015 |
| CARE4SICKLE CIC | Education | 2026 |
| CARE4TEETH Limited | Public administration | 2021 |
| Career Atlas Ltd | Extraterritorial | 2020 |
| Career Launch Ltd | Education | 2019 |
| Careerclarity Ltd | Education | 2025 |
| Careers-Insight Ltd | Administrative & support | 2024 |
| Careersnearhere Limited | Extraterritorial | 2018 |
| Carelide UK Limited | Manufacturing | 2019 |
| Carepride Limited | Health & social care | 2010 |
| Carepulse Limited | Health & social care | 2025 |
| Carers on Call (PVT) Ltd | Health & social care | 2014 |
| Carescribe Bidco Limited | Financial services | 2025 |
| Carescribe Limited | Information & communication | 2018 |
| Carescribe Midco Limited | Financial services | 2025 |
| Carescribe Topco Limited | Financial services | 2025 |
| Careserv Limited | Administrative & support | 2016 |
| Carest LP | | 2015 |
| Carew Ltd | Construction | 2019 |
| Carew Property Management Ltd | Real estate | 2021 |
| Carey & Vine Holdings Limited | Financial services | 2026 |
| Carfeever Limited | Administrative & support | 2022 |
| Cargo Delivery Team Ltd | Transport & logistics | 2026 |
| Cargo Movement Limited | Health & social care | 2019 |
| Cargocraze Limited | Wholesale & retail | 2025 |
| Carhampton Properties Ltd | Real estate | 2025 |
| Cariad Classic Cakes Limited | Manufacturing | 2026 |
| Cariad Content Consultancy Limited | Information & communication | 2017 |
| Cariand Software Limited | Information & communication | 2016 |
| Cariano Ltd | Wholesale & retail | 2022 |
| Carillion Print Ltd | Manufacturing | 2022 |
| Caring Bridge Care Agency Ltd | Public administration | 2024 |
| Caring Comes 1ST Ltd. | Health & social care | 2013 |
| Caring Dentistry Ltd | Health & social care | 2010 |
| Caring in Bristol Limited | Health & social care | 2013 |
| Caring to Party Ltd | Hospitality | 2024 |
| Caringjames Ltd | Health & social care | 2021 |
| Cariss Consulting Limited | Administrative & support | 2014 |
| Cariss Limited | Wholesale & retail | 2020 |
| Cariss Logistics Limited | Transport & logistics | 2021 |
| Carl Bembridge Hair Ltd | Other services | 2021 |
| Carl Jackson Martial Arts Limited | Arts & recreation | 2022 |
| Carl NO 2 Limited | Other services | 2024 |
| Carl Tonks Limited | Professional & scientific | 2012 |
| Carl's Catering Ltd | Hospitality | 2024 |
| Carland Bristol Ltd | Wholesale & retail | 2022 |
| Carlene Property Services Limited | Administrative & support | 2019 |
| Carling Barn Collective | Arts & recreation | 2023 |
| Carloggas Solar Park Limited | Energy | 2013 |
| Carlos Hernandez Ltd | Wholesale & retail | 2025 |
| Carlrich Park (Management) Company Limited | Households | 1973 |
| Carlton House Limited | Households | 1963 |
| Carlton Road (Torquay) Limited | Households | 2014 |
| Carly Bond Performing Arts LLP | | 2023 |
| Carma Automotive Limited | Wholesale & retail | 2017 |
| Carma Club Limited | Arts & recreation | 2026 |
| Carmarthen Tech Hub Ltd | Wholesale & retail | 2026 |
| Carmarthenshire Tyre Services Ltd | Wholesale & retail | 2004 |
| Carmel Bidco Limited | Financial services | 2021 |
| Carmel Midco 1 Limited | Financial services | 2021 |
| Carmel Ministries International | Education | 2002 |
| Carmela Hair Co Limited | Wholesale & retail | 2025 |
| Carmen Barlow Digital Limited | Professional & scientific | 2022 |
| Carmen Data Limited | Information & communication | 2002 |
| Carnation UK Direct Limited | Wholesale & retail | 2018 |
| Carnegie Investment Asset Management Limited | Financial services | 1998 |
| Carnegie Restaurants Ltd. | Hospitality | 2017 |
| Carnet Bristol Ltd | Wholesale & retail | 2025 |
| Carnett Limited | Wholesale & retail | 1987 |
| Carnival Insight Ltd | Professional & scientific | 2026 |
| Carnivalli Limited | Construction | 2022 |
| Carnmoggas Holiday Park Limited | Hospitality | 2017 |
| Carnoon Limited | Wholesale & retail | 2021 |
| Carnstone Partners Limited | Professional & scientific | 2018 |
| Caroe Consulting Ltd | Professional & scientific | 2020 |
| Carol Robinson Limited | Arts & recreation | 2007 |
| Carola Management Company Limited | Households | 1989 |
| Carolhorsey Health and Community Housing CIC | Health & social care | 2026 |
| Carolhorsey Ltd | Health & social care | 2023 |
| Caroline House Bristol (Management Company) Limited | Households | 1995 |
| Caroline Jayne Church Limited | Real estate | 2006 |
| Caroline Jones Marketing Limited | Professional & scientific | 2006 |
| Carona Consulting Ltd | Administrative & support | 2016 |
| Carow Properties Limited | Real estate | 2005 |
| Carp Lore Tackle Ltd | Administrative & support | 2024 |