| CH Style Ltd | Other services | 2024 |
| Chamholdings Ltd | Health & social care | 2013 |
| Chelmondiston Homes Ltd | Construction | 2021 |
| Chiltern Hills Planning and Design Limited | Professional & scientific | 2023 |
| Chiltern Lounge Limited | Hospitality | 2025 |
| Chiltern Mains Ltd | Water & waste | 1996 |
| Chiltern Padel Club Ltd | Arts & recreation | 2026 |
| Chinnex Consultancy Services Ltd | Professional & scientific | 2024 |
| Chinnor & Princes Risborough Railway Company Limited | Transport & logistics | 1992 |
| Chinnor and Princes Risborough Railway Association Limited | Transport & logistics | 1991 |
| Chinnor Beer Festival Limited | Hospitality | 2024 |
| Chinnor Community Pavilion Trading Limited | Arts & recreation | 2015 |
| Chinnor Fabrications Limited | Construction | 2016 |
| Chinnor Pets Limited | Manufacturing | 2022 |
| Chinnor Property Limited | Construction | 2016 |
| Chinnor Web Design Limited | Information & communication | 2014 |
| Christmas Inc Limited | Other services | 2013 |
| Christmas Solutions Limited | Wholesale & retail | 2017 |
| Clanger Glazing Ltd | Construction | 2022 |
| Clarke & Kelly Tooling Ltd | Manufacturing | 2017 |
| Claymore Holdings Limited | Financial services | 2025 |
| Click Here Digital Ltd | Professional & scientific | 2009 |
| Complete Community Care NW London Limited | Health & social care | 2010 |
| Concurrent Computing Limited | Information & communication | 2001 |
| Connected by Water Ltd | Administrative & support | 2019 |
| Constellation-I Ltd. | Professional & scientific | 2018 |
| Consultancy Audit and Training Services Limited | Professional & scientific | 2023 |
| Coopert Ltd | Transport & logistics | 2024 |
| Cromwell Court (Chinnor) Management Co. Limited | Real estate | 2008 |
| Crowell Hill Consulting Limited | Extraterritorial | 2023 |
| CRS Carpentry Ltd | Manufacturing | 2023 |
| CSO IT Services Ltd. | Information & communication | 2017 |
| Curry Leaf Chinnor Limited | Hospitality | 2012 |
| D R Grundy Network Services Limited | Information & communication | 2011 |
| DAH Consulting Limited | Construction | 2022 |
| DC Hunt Limited | Real estate | 2021 |
| DCA & IMA Holdings Limited | Other services | 1997 |
| Design & Automation Solutions Ltd | Manufacturing | 2012 |
| Digital Candi Ltd | Administrative & support | 2020 |
| Dimbles Gate Management Company Limited | Households | 2018 |
| DJP Southern Electrical Services Ltd | Construction | 2024 |
| DM Rigging Ltd | Construction | 2023 |
| Dreywood Ltd | Professional & scientific | 2026 |
| DUO Express Ltd | Hospitality | 2024 |
| Dynasty Talent Ltd | Administrative & support | 2025 |
| E & AF Holdings Limited | Financial services | 2026 |
| E&Af Property Limited | Financial services | 2021 |
| Edge IT Limited | Information & communication | 2004 |
| Effective Care Services Limited | Administrative & support | 2017 |
| Effects Engineering Limited | Arts & recreation | 2017 |
| Elsham Properties Ltd | Real estate | 2023 |
| Employment Law Resource Limited | Administrative & support | 1999 |
| ES Events (Berkshire) Limited | Hospitality | 2019 |
| Esmai Studio Ltd | Other services | 2026 |
| Essjaytee Investments Limited | Financial services | 2016 |
| EVE4WOMEN Limited | Professional & scientific | 2013 |
| Exclusive Car Hire London Limited | Administrative & support | 2025 |
| EXE IT Ltd | Information & communication | 2006 |
| Exodus Healthcare Professionals Limited | Health & social care | 2016 |
| Exodus Luxury Apartments & Homes Ltd | Real estate | 2025 |
| Expertrehab Ltd | Real estate | 2019 |
| Face Value Consulting Limited | Information & communication | 2004 |
| Family Saver Card Limited | Other services | 2011 |
| Findadviser Limited | Professional & scientific | 2019 |
| Fire Safety Services Limited | Wholesale & retail | 1999 |
| Fivem Apartments Limited | Hospitality | 2024 |
| Fivem Group Holdings Limited | Financial services | 2024 |
| Fivem Operations 1 Limited | Hospitality | 2025 |
| Flavoractiv Holdings Limited | Financial services | 2012 |
| Flavoractiv Limited | Administrative & support | 1996 |
| Flavorforensics Limited | Administrative & support | 2022 |
| Floodlight New Marketing Ltd | Professional & scientific | 2013 |
| Food Development Company Limited | Manufacturing | 2009 |
| Forever One Homes Limited | Real estate | 2023 |
| Forte Entertainment Ltd | Arts & recreation | 2023 |
| Forte Events Ltd | Administrative & support | 2024 |
| Fourmative Limited | Professional & scientific | 1993 |
| Franklin James Credit Management Limited | Professional & scientific | 2016 |
| Fresh INK Ltd | Information & communication | 2004 |
| Function Forge Limited | Information & communication | 2025 |
| Functionsuk Ltd | Wholesale & retail | 2025 |
| G & K Plumbing and Heating Limited | Construction | 2014 |
| G L C (Bucks) Ltd | Construction | 2018 |
| G P Caine Builders Limited | Construction | 2018 |
| Garage-Junktion Ltd | Information & communication | 2025 |
| Garvey Consulting Ltd | Professional & scientific | 2023 |
| Gatehouse Quarter Management Company Eleven Limited | Real estate | 2010 |
| Gatehouse Quarter Management Company One Limited | Real estate | 2010 |
| Gatehouse Quarter Management Company TEN Limited | Real estate | 2010 |
| Gatehouse Quarter Management Company Thirteen Limited | Real estate | 2010 |
| Gatehouse Quarter Management Company Three Limited | Real estate | 2010 |
| GC Nightingale Limited | Professional & scientific | 2023 |
| Glynswood Property Group Limited | Real estate | 2021 |
| Grapes & Flavours Limited | Hospitality | 2024 |
| Green Feller Tree Specialist Limited | Administrative & support | 2013 |
| Green Hailey Engineering Limited | Professional & scientific | 2016 |
| Green Most Ltd | Hospitality | 2018 |
| Greyswood Ltd | Construction | 2006 |
| Grove Bookkeeping & Accounts Ltd | Professional & scientific | 2011 |
| Hadminaid Ltd | Professional & scientific | 2020 |