| Cecil Healthcare Ltd | Health & social care | 2019 |
| CEE Louiss Ltd | Wholesale & retail | 2025 |
| Ceetak Holdings Limited | Professional & scientific | 1971 |
| Ceetak Limited | Manufacturing | 1988 |
| CEH Express Ltd | Hospitality | 2025 |
| Celestial Wave Ltd | Construction | 2024 |
| Cellar Bar (High Street) Ltd | Hospitality | 2025 |
| Cellsave Limited | Information & communication | 2000 |
| Celsus Group Limited | Professional & scientific | 2025 |
| Celtic Rose Developments Ltd | Construction | 2025 |
| Celtic Screens Ltd | Administrative & support | 2026 |
| Cemc Ltd | Professional & scientific | 2014 |
| Cenbeech Limited | Construction | 1979 |
| Centaro IT Consultants Limited | Professional & scientific | 2014 |
| Central Business School Limited | Extraterritorial | 2013 |
| Central Cars Bedford Ltd | Transport & logistics | 2013 |
| Central Leasing Ltd | Wholesale & retail | 2020 |
| Central Letting Agents Limited | Real estate | 2011 |
| Central Pharma Biotechnica Limited | Manufacturing | 2021 |
| Central Pharma Cell and Gene Therapy Ltd | Professional & scientific | 2020 |
| Central Pharma Contract Holdings Limited | Financial services | 2012 |
| Central Pharma Contract Packing Limited | Administrative & support | 2006 |
| Central Pharma Manufacturing Ltd | Manufacturing | 2020 |
| Central Square Ltd | Hospitality | 2018 |
| Centralfax Limited | Information & communication | 1995 |
| Centre for Contemporary Ministry Ltd | Education | 2005 |
| Centre Point Performance Limited | Wholesale & retail | 2010 |
| Centro Signs Limited | Professional & scientific | 2011 |
| Centrum Management Limited | Professional & scientific | 2010 |
| Ceri Evans Marketing & Communications Ltd | Professional & scientific | 2018 |
| Cetak Business Solutions Ltd | Professional & scientific | 2023 |
| Ceylon Deep Cleaners Ltd | Administrative & support | 2025 |
| CF Online Golf Ltd | Education | 2022 |
| CFH Trading Ltd | Wholesale & retail | 2023 |
| CG Fit Limited | Arts & recreation | 2014 |
| Cg-Pa Limited | Administrative & support | 2021 |
| CGL Scaffolding Services Limited | Construction | 2013 |
| CH & CH Limited | Arts & recreation | 2020 |
| CH Media Publishing Ltd | Information & communication | 2021 |
| Chaasha Limited | Hospitality | 2020 |
| Chadigital Limited | Information & communication | 2018 |
| Chaletopia Ltd | Hospitality | 2023 |
| Chalk Services Ltd | Construction | 2023 |
| Chalkley Sports Limited | Wholesale & retail | 2003 |
| Challenge (Europe) Holdings Limited | Financial services | 2017 |
| Chaltons Goods Ltd | Wholesale & retail | 2025 |
| Chambered Cyber IG Limited | Information & communication | 2025 |
| Chambers Business Services Ltd | Professional & scientific | 2017 |
| Chambers Lodge Management Company Limited | Households | 2006 |
| Chambers Portfolio Management Ltd | Households | 2019 |
| Chameleon Creative Limited | Manufacturing | 2021 |
| Champs Boost Ltd | Other services | 2025 |
| Chances Plus Ltd | Real estate | 2021 |
| Chandarana Foods Ltd | Hospitality | 2022 |
| Chandarana Investments Ltd | Real estate | 2018 |
| Chandarana Meppershall Ltd | Wholesale & retail | 2024 |
| Chandarana Real Estates Ltd | Real estate | 2024 |
| Chandarana Walkern Ltd | Wholesale & retail | 2024 |
| Chands Estate Agents Ltd | Real estate | 2018 |
| Change and Deliver Limited | Professional & scientific | 2020 |
| Changes Forever Ltd | Other services | 2009 |
| Changevis Ltd | Professional & scientific | 2024 |
| Channel Insurance Consultants Limited | Financial services | 1972 |
| Channel Talent Limited | Education | 2014 |
| Chantry Vickers Limited | Professional & scientific | 2011 |
| Chaos Property One Limited | Real estate | 2024 |
| Chapel Automotive Services Limited | Wholesale & retail | 2015 |
| Chapel Farm 1690 Ltd | Hospitality | 2017 |
| Chapel Mews Bozeat Management Company Limited | Households | 2007 |
| Chapter & Chill Limited | Wholesale & retail | 2025 |
| Chapters Retail Ltd | Administrative & support | 2018 |
| Character Press Limited | Manufacturing | 1992 |
| Charcoal Grill LB Ltd | Hospitality | 2016 |
| Chardy Ltd | Construction | 2015 |
| Charice & Brothers Limited | Other services | 2017 |
| Charice Supported Housing C.I.C. | Health & social care | 2023 |
| Charis Care Consultancy Ltd | Health & social care | 2024 |
| Charis Lettings & Management Ltd | Real estate | 2025 |
| Charisse Brown Limited | Health & social care | 2013 |
| Charlbury Court (Bedford) Ltd | Households | 1982 |
| Charlbury Court Freehold Ltd | Households | 2019 |
| Charles Bubbles Sales Ltd | Wholesale & retail | 2025 |
| Charles Estates Group Ltd | Real estate | 2024 |
| Charles Lawson Limited | | 2009 |
| Charles Lewis Construction Limited | Construction | 2020 |
| Charles Matisse Limited | Real estate | 2019 |
| Charles Walker Associates (Beds) Ltd | Professional & scientific | 2020 |
| Charles Walker Associates (Hunts) Ltd | Professional & scientific | 2020 |
| Charles Walker Associates (ST Neots) Ltd | Professional & scientific | 2024 |
| Charles Walker Associates Ltd | Real estate | 2018 |
| Charles Wells Brands Management Limited | Professional & scientific | 2006 |
| Charles Wells Brewery Limited | Manufacturing | 2006 |
| Charles Wells Limited | Manufacturing | 1910 |
| Charles Wells Pension Trustees Limited | Financial services | 2013 |
| Charles William Capital Limited | Wholesale & retail | 2014 |
| Charlie Burton Trading Limited | Professional & scientific | 2016 |
| Charlie Corcoran Limited | Information & communication | 2025 |
| Charlie Pattison Homes Ltd | Real estate | 2023 |
| Charlotte Dagg Financial Services Limited | Professional & scientific | 2010 |
| Charlotte Whittaker Radiology Limited | Health & social care | 2019 |