| Chalk Road (Ifold) Residents Management Company Limited | Households | 2015 |
| Chalm Holdings Ltd | Financial services | 2025 |
| Chambers Concrete PLC | Manufacturing | 2009 |
| Chameleon Partnership Limited | Professional & scientific | 2023 |
| Chance Upon Ltd. | Information & communication | 2022 |
| Chancery Gardens (Wrecclesham) Management Company Limited | Households | 1988 |
| Change Curve Consulting Limited | Professional & scientific | 2021 |
| Change Rebellion Ltd | Professional & scientific | 2023 |
| Changebuilding Limited | Professional & scientific | 2016 |
| Changeground Residents Management (Farnham) Limited | Real estate | 1993 |
| Changeover Limited | Information & communication | 2001 |
| Chapel Pond Limited | Hospitality | 2004 |
| Chapter One Developments Limited | Construction | 2021 |
| Charizards Replacement Parts Limited | Wholesale & retail | 2026 |
| Charlee Properties Limited | Real estate | 2024 |
| Charles Derby Mortgage Bureau Limited | Financial services | 2015 |
| Charlie Jones Legal Limited | Professional & scientific | 2026 |
| Charlie Riggs Strategy Ltd | Professional & scientific | 2022 |
| Charlotte's Web Jewellery Limited | Wholesale & retail | 2015 |
| Chartfield Consulting Limited | Real estate | 2019 |
| Chartwell Classic Windows Ltd | Construction | 2024 |
| Chasey's Barn Ltd | Wholesale & retail | 2021 |
| Chatlogic Ltd | Wholesale & retail | 2011 |
| Chaucer Court (Byfleet) Management Company Limited | Households | 2013 |
| Cheam Angling Limited | Wholesale & retail | 2014 |
| Checkmade Ltd | Information & communication | 2025 |
| Cheeky Media Limited | Information & communication | 2003 |
| Cheese on the WEY Ltd | Manufacturing | 2017 |
| Cheeseman & Co Properties Services Ltd | Real estate | 2023 |
| Cherished Car Insurance Services Limited | Financial services | 2007 |
| Cherry and Maple Management Company Ltd | Households | 2017 |
| Cherub Rock Limited | Arts & recreation | 2013 |
| Chess Employment Limited | Professional & scientific | 2017 |
| Chess Property Services Ltd | Construction | 2017 |
| Chester Management Limited | Professional & scientific | 2018 |
| Chesters Developments Limited | Construction | 2024 |
| Chesters Place Limited | Real estate | 2021 |
| Chestnut Court (Aldershot) Management Company Limited | Households | 1979 |
| Chevremont Management Company Limited | Households | 1978 |
| Chickeeduck UK Limited | Wholesale & retail | 2023 |
| Child Salmon Associates Limited | Administrative & support | 1991 |
| Chilkins Ltd | Administrative & support | 2018 |
| Chilterns Healthcare Limited | Health & social care | 2015 |
| Chineham Ridge Flat Management Co. Limited. | Households | 1985 |
| Chisholm Design and Consultancy Ltd | Professional & scientific | 2018 |
| Chisholm Group Holdings Ltd | Professional & scientific | 2025 |
| Chisolm Consulting Ltd | Information & communication | 2025 |
| Chiswick Hall House Management Company Limited | Households | 2012 |
| Chiswick Road Limited | Real estate | 2014 |
| Choccy NUT POT Ltd | Manufacturing | 2019 |
| Choix Group Ltd | Professional & scientific | 2018 |
| Chonegate Property Management Limited | Households | 1999 |
| Chris Hammond Carpets Limited | Wholesale & retail | 2014 |
| Christim Beck Properties Limited | Administrative & support | 2002 |
| Christine Rust Facilities Management Ltd | Administrative & support | 2014 |
| Christopher ST James Animals Ltd | Agriculture & fishing | 2016 |
| Christopher ST James Limited | Real estate | 1986 |
| Chuckle Soaps Ltd | Manufacturing | 2020 |
| Church View Residents Association Limited | Households | 1986 |
| Churchill & Churchill Limited | Real estate | 1999 |
| Churchlands Residents Association Limited | Households | 2003 |
| Churt Garden Machinery Ltd | Wholesale & retail | 2012 |
| Churt Masala Ltd | Hospitality | 2021 |
| Ciall Investments Limited | Financial services | 2022 |
| Cinema Deco Ltd | Wholesale & retail | 2024 |
| Cinnamon Farnham Limited | Hospitality | 2025 |
| Circitas Limited | Construction | 2011 |
| Cirki Solutions Ltd | Administrative & support | 2025 |
| Cistc Limited | Education | 2017 |
| Citadel Dynamic Solutions Ltd | Professional & scientific | 2013 |
| City Lights Electrical Ltd | Construction | 2016 |
| City Strongman Ltd | Other services | 2015 |
| Cityward Limited | Administrative & support | 2008 |
| CJC Design Limited | Professional & scientific | 2018 |
| CJK Associates Limited | Education | 2017 |
| CJM Forge Limited | Real estate | 2025 |
| CJP Solutions Limited | Information & communication | 2005 |
| CK1 Properties Limited | Real estate | 2024 |
| CKS Enterprises Limited | Real estate | 2017 |
| CL YAP Ltd | Other services | 2018 |
| Cl-Zone Limited | Arts & recreation | 2019 |
| Clare Mead Residents Management Limited | Households | 1981 |
| Clare Park Farming Limited | Agriculture & fishing | 2026 |
| Clare Shilland Photography Limited | Professional & scientific | 2012 |
| Claremont Dental Practice Limited | Health & social care | 2025 |
| Clarence Court (Farnham) Management Company Limited | Households | 2013 |
| Clarity Services G'Da Limited | Professional & scientific | 2025 |
| Clark Wilson Associates Limited | Professional & scientific | 2015 |
| Clarke Law Developments Ltd | Construction | 2024 |
| Classic Battlefield Tours Limited | Administrative & support | 2019 |
| Classic Roofing Services Ltd | Construction | 2026 |
| Claverton Marketing Limited | Construction | 1994 |
| CLAY23 Limited | Health & social care | 2025 |
| Cleaning & Ironing 4U Limited | Administrative & support | 2017 |
| Clear Breeze Consulting Limited | Information & communication | 2013 |
| Clear Conscience Ltd | Water & waste | 2025 |
| Clearedtogo Ltd | Information & communication | 2026 |
| Clearpath Haulage Solutions Ltd | Transport & logistics | 2026 |
| Cleasby Willans | Professional & scientific | 2022 |
| Cleeve Construction Limited | Construction | 2014 |