| Celo-Global Ltd | Arts & recreation | 2013 |
| Cenomanian Drilling Limited | Professional & scientific | 2026 |
| Centra Health Consulting Ltd | Health & social care | 2014 |
| Central Garages Limited | Wholesale & retail | 2006 |
| Central Loans Limited | Financial services | 2001 |
| Central London Maintenance Team Limited | Construction | 2019 |
| Central Scaffolding Limited | Professional & scientific | 2006 |
| Central School of Dance Ltd | Administrative & support | 2017 |
| Central Stress Management Limited | Health & social care | 2001 |
| Central Trades Limited | Construction | 2005 |
| Central Trust Limited | Financial services | 2009 |
| Central Trust Syndicate Number One Limited | Financial services | 2009 |
| Centralus 003 Ltd | Administrative & support | 2016 |
| Centralus Operations LLP | | 2016 |
| Centre for Artificial Intelligence Interaction Limited | Information & communication | 2024 |
| Centre for Retail Research Limited | Professional & scientific | 2026 |
| Century Intermoor Holdings Limited | Professional & scientific | 2014 |
| Century Packing Ltd | Administrative & support | 2023 |
| Century Press Ltd | Manufacturing | 2005 |
| CEO Media Group Ltd | Professional & scientific | 2017 |
| CEO Media Limited | Professional & scientific | 2014 |
| Ceproof Group Limited | Professional & scientific | 2008 |
| Ceramica FIX Limited | Construction | 2004 |
| Cerberus Method Ltd | Arts & recreation | 2021 |
| Ceres Property LLP | | 2021 |
| Cerkez Limited | Hospitality | 2017 |
| Cerney Analytics Limited | Information & communication | 2026 |
| Cernobio Consulting Limited | Professional & scientific | 2025 |
| Certa Partnership Limited | Professional & scientific | 2015 |
| Certax Accounting (Central & East Norwich) Ltd | Professional & scientific | 2012 |
| Certax Accounting (Norwich) Limited | Professional & scientific | 2003 |
| Certified Business Services Ltd | Professional & scientific | 2019 |
| Certified Rooms Ltd | Real estate | 2023 |
| Certus Communications Consultants Ltd | Professional & scientific | 2013 |
| CES Services Limited | Information & communication | 2015 |
| Ceylon Master Chef Limited | Hospitality | 2025 |
| CF Management Consultancy Services Ltd | Professional & scientific | 2011 |
| CFC Business Services Ltd | Hospitality | 2013 |
| Cfdg Limited | Professional & scientific | 2008 |
| Cfic Ltd | Financial services | 2023 |
| Cfish Consulting Limited | Professional & scientific | 2010 |
| CFM Property Ltd | Extraterritorial | 2025 |
| CG Accountancy Limited | Professional & scientific | 2021 |
| CG LEE Limited | Professional & scientific | 2003 |
| CG O&G Services Ltd | Other services | 2020 |
| CGC Cardiology Limited | Health & social care | 2021 |
| CGC Cosmetics Limited | Wholesale & retail | 2019 |
| CGF Consultancy Services Ltd | Administrative & support | 2019 |
| CGO Holdings Ltd | Financial services | 2019 |
| CGS Gaming Limited | Arts & recreation | 2014 |
| CGT (Norfolk) Ltd | Financial services | 2019 |
| CGW Consultancy Healthcare Limited | Health & social care | 2019 |
| CH (Norwich) Ltd | Real estate | 2011 |
| CH Healthcare Services Limited | Health & social care | 2026 |
| CH Property Investors Ltd | Real estate | 2018 |
| CH Taxis Ltd | Administrative & support | 2015 |
| Ch&I Associates Ltd | Administrative & support | 2011 |
| CH1 Fitness Ltd | Arts & recreation | 2017 |
| CH4C Global Ltd | Professional & scientific | 2016 |
| Chabonnie Limited | Real estate | 2011 |
| Chadds Holdings Limited | Financial services | 2024 |
| Chadwell Heath Services Ltd | Administrative & support | 2007 |
| Chadwicks Enterprise Limited | Financial services | 2015 |
| Chadwicks Investment Management Limited | Financial services | 2019 |
| Chadwicks Limited | Financial services | 1996 |
| Chaffey and Co Limited | Wholesale & retail | 2021 |
| Chain Matrix Ltd | Information & communication | 2020 |
| Chain Reactions Performance Limited | Professional & scientific | 2012 |
| Chair Rentals (Norwich) Ltd | Other services | 2016 |
| Chakra Spa Ltd | Other services | 2025 |
| Chalcraft Building Services Ltd | Construction | 2018 |
| Chalfont Walk Residents' Association Limited | Households | 1975 |
| Chalk & Lemon Limited | Hospitality | 2018 |
| Chalk Hill (Holdings) Limited | Professional & scientific | 2023 |
| Chalk Hill House Management Co. Limited | Administrative & support | 1993 |
| Chalk Hill Inns Limited | Hospitality | 2001 |
| Chalkside Architecture & Design Ltd | Professional & scientific | 2022 |
| Chalu-Eyre Ltd | Hospitality | 2025 |
| Chamber Engineering Limited | Professional & scientific | 2009 |
| Chambers & Co (Solicitors) Limited | Professional & scientific | 2010 |
| Chambers Bales Consultancy Ltd | Professional & scientific | 2020 |
| Chambers Meat Services Limited | Wholesale & retail | 2010 |
| Chamcham 25 Ltd | Hospitality | 2025 |
| Champagne Golf Tours Ltd | Hospitality | 2017 |
| Champion Caterers Limited | Hospitality | 2018 |
| Champion Clothing Limited | Wholesale & retail | 2009 |
| Champion Pioneer Limited | Information & communication | 2008 |
| Chandler Petroleum Consulting Ltd | Professional & scientific | 2011 |
| Chandra Purnima Limited | Other services | 2008 |
| Chang MAI Limited | Hospitality | 2024 |
| Chanik Limited | Health & social care | 2019 |
| Channel Seaways (UK) Limited | Transport & logistics | 2021 |
| Channel Ventures Ltd | Real estate | 2023 |
| Channelwise Ltd | Administrative & support | 2023 |
| Chantara Thai Massage Ltd | Health & social care | 2026 |
| Chantry Meadows Management Company Limited | Households | 2018 |
| Chapar 2016 Ltd | Manufacturing | 2017 |
| Chapar 2017 Ltd | Manufacturing | 2017 |
| Chapar 2020 Strategic Holdings Ltd | Manufacturing | 2020 |
| Chapel Arts Limited | Hospitality | 2021 |