| CFT Productions Limited | Arts & recreation | 2014 |
| Cftsolutions.Shop Ltd | Arts & recreation | 2024 |
| CGC Warehouse Ltd | Wholesale & retail | 2021 |
| CGS Civils Limited | Professional & scientific | 2013 |
| CH & JG Holdings Limited | Financial services | 2022 |
| CH Farms Ltd | Agriculture & fishing | 2011 |
| Chaai Shopwyke Ltd | Hospitality | 2025 |
| Chadwick Long Partnership Ltd | Hospitality | 2017 |
| Chakano Ltd | Hospitality | 2019 |
| Chalet Park Care Limited | Administrative & support | 2011 |
| Chalk & Flint Ltd | Wholesale & retail | 2018 |
| Chalk Lane and COW Lane Management Limited | Households | 1993 |
| Chalk Springs Fishery Ltd | Other services | 2016 |
| Chalkpit Design Limited | Manufacturing | 2026 |
| Challenger Consulting Services Limited | Professional & scientific | 2024 |
| Chambers Home Care Ltd | Health & social care | 2024 |
| Champions Gate Publishing Limited | Information & communication | 2021 |
| Chandler Stoneworks Limited | Construction | 2012 |
| Chandlers Reach Residents Limited | Households | 1999 |
| Change Leadership Organisation Ltd | Professional & scientific | 2014 |
| Channel Smart Buildings Limited | Construction | 2018 |
| Channel Topco Limited | Administrative & support | 2015 |
| Chantreys Limited | Financial services | 2024 |
| Chantry Business Premises Ltd | Real estate | 2025 |
| Chapel Breaks Limited | Real estate | 2021 |
| Chaplins Shake Shop Limited | Hospitality | 2025 |
| Chapmandoo Ltd | Arts & recreation | 2015 |
| Charactermark Ltd | Professional & scientific | 2010 |
| Chardli Limited | Hospitality | 2023 |
| Charles House Maintenance (Worthing) Limited | Households | 1962 |
| Charles Keiller & Associates Limited | Professional & scientific | 2002 |
| Charles Smee Limited | Construction | 2011 |
| Charlotte Benson Aesthetics Limited | Other services | 2019 |
| Charlotte Park Management Services Limited | Professional & scientific | 1986 |
| Charlotte Place Southampton Limited | Real estate | 2019 |
| Charlotte UN Limited | Administrative & support | 2026 |
| Charlwood Consultants Limited | Administrative & support | 2005 |
| Charlwood Developments Ltd | Construction | 2009 |
| Charman Security Solutions Ltd | Construction | 1998 |
| Charter From Limited | Administrative & support | 2015 |
| Chartergrove Limited | Other services | 2018 |
| Chateaushare Limited | Hospitality | 2001 |
| Chatsmore House Management Company Limited | Households | 1963 |
| Chatsworth Close Management Company Limited | Real estate | 2009 |
| Checkmate Digital Ltd | Manufacturing | 1990 |
| Cheese Buoy Ltd | Wholesale & retail | 2025 |
| Chefs on the Move Ltd | Hospitality | 2005 |
| Chelsham Investments Ltd | Financial services | 2023 |
| Cherish Tree Holdings Ltd | Financial services | 2020 |
| Cherish Tree Ltd | Real estate | 2020 |
| Cherry Tree Court (Felpham) Limited | Households | 1999 |
| Cherry Vintage Ltd | Wholesale & retail | 2023 |
| Chesham Lodge Residents Association Limited | Households | 1961 |
| Chestergrange Developments (Pagham) Limited | Construction | 2010 |
| Chestergrange Developments Limited | Construction | 2008 |
| Chesterman Homes (Arundel Road) Limited | Real estate | 2018 |
| Chestnut Accounts Limited | Professional & scientific | 2017 |
| Chestnut Court (Fishbourne) Limited | Administrative & support | 2008 |
| Chetna Retail Ltd | Wholesale & retail | 2025 |
| Cheyne Walk Ltd | Information & communication | 2011 |
| CHI Construction and Development Ltd | Construction | 2015 |
| CHI Gardens Design and Build Ltd | Professional & scientific | 2025 |
| CHI India Limited | Hospitality | 2026 |
| CHI Masala Ltd | Hospitality | 2025 |
| CHI Space Property Management Ltd | Real estate | 2018 |
| CHI Space Property Services Ltd | Construction | 2016 |
| Chi-Africa Ltd | Wholesale & retail | 2000 |
| Chi-Lec Electrical Contractors Ltd | Construction | 2015 |
| Chibac Limited | Administrative & support | 2012 |
| Chibo Software Group Limited | Information & communication | 2025 |
| Chic Nails & Spa Ltd | Other services | 2023 |
| Chichester BID Limited | Administrative & support | 2017 |
| Chichester & Lancing Properties | Real estate | 1960 |
| Chichester (Southbank) Management Company Limited | Households | 1990 |
| Chichester Accounting Limited | Professional & scientific | 2019 |
| Chichester Aesthetics Limited | Health & social care | 2021 |
| Chichester Aggregates Ltd | Other services | 2024 |
| Chichester Barbers Ltd | Other services | 2016 |
| Chichester Beauty Aesthetics Limited | Other services | 2020 |
| Chichester Blinds and Awnings Limited | Construction | 2023 |
| Chichester Bodyworks Limited | Wholesale & retail | 2012 |
| Chichester Build and Groundworks Limited | Construction | 2021 |
| Chichester Builders Ltd | Construction | 2016 |
| Chichester Business Park LLP | | 2023 |
| Chichester Business Park Management Limited | Households | 2018 |
| Chichester Canal Trading Limited | Transport & logistics | 1998 |
| Chichester Car Care Centre Ltd | Wholesale & retail | 2022 |
| Chichester Carpentry & Developments Ltd | Construction | 2014 |
| Chichester Carpentry and Building Limited | Construction | 2011 |
| Chichester Cathedral Enterprises Limited | Wholesale & retail | 1974 |
| Chichester Cathedral Restoration Trust Events Limited | Administrative & support | 2001 |
| Chichester Cinema at New Park Limited | Information & communication | 2002 |
| Chichester City & Portfield United Football Club Limited | Arts & recreation | 2000 |
| Chichester City Arts Centre LLP | | 2021 |
| Chichester City Club Limited | Administrative & support | 2017 |
| Chichester Coast Gymnastics Academy | Education | 2026 |
| Chichester College Group Commercial Limited | Education | 2018 |
| Chichester Community Development Trust | Other services | 2009 |
| Chichester Construct Ltd | Construction | 2022 |
| Chichester Counselling Services | Health & social care | 1996 |