| Christopher Wright Limited | Other services | 2004 |
| Chroma Church | Other services | 2008 |
| Chroma Surveyors Limited | Professional & scientific | 2011 |
| Chromar Research & Development Ltd | Agriculture & fishing | 2023 |
| Chrome Trading Ltd | Wholesale & retail | 2012 |
| Chrome Video Ltd | Information & communication | 2026 |
| Chrystal Property Group Ltd | Real estate | 2023 |
| CHS UK Medical Ltd | Health & social care | 2019 |
| Chsquared Ltd | Real estate | 2020 |
| Chummar Properties Limited | Real estate | 2025 |
| Chung Brothers Ltd | Hospitality | 2019 |
| Chungh Company Ltd | Financial services | 2025 |
| Chungs Garden Ltd | Hospitality | 2013 |
| Chungs Logistics Limited | Transport & logistics | 2025 |
| Church Gate Management Company Limited | Real estate | 2018 |
| Church Hill Church of England Junior School | Education | 2012 |
| Church Lane 1966 Limited | Extraterritorial | 2014 |
| Church of the Living GOD Leicester | Other services | 2020 |
| Church View (Groby) Management Company Limited | Real estate | 2013 |
| Church View (Hugglescote) Limited | Households | 2017 |
| Church View (Shepshed) Management Company Limited | Construction | 2005 |
| Churchgate Artists Studios C.I.C. | Arts & recreation | 2020 |
| Churchgate Jewellers Limited | Wholesale & retail | 2003 |
| Churchgate News Limited | Wholesale & retail | 2025 |
| Churchgate Properties Limited | Real estate | 2025 |
| Churchgate Property Limited | Real estate | 2025 |
| Churchill Garage Limited | Wholesale & retail | 2020 |
| Churros & Chorizo Ltd | Hospitality | 2021 |
| Chutney's Aylestone Limited | Hospitality | 2022 |
| Chutney's Takeaway Limited | Hospitality | 2019 |
| Chwarchra Limited | Transport & logistics | 2026 |
| CIA Helicopters Limited | Transport & logistics | 2017 |
| Ciana Care Service Ltd | Public administration | 2021 |
| Ciao Pizzeria Limited | Hospitality | 2023 |
| Cibix Limited | Professional & scientific | 2022 |
| CIC Coaching CIC | Professional & scientific | 2026 |
| Cici Communications Ltd | Information & communication | 2020 |
| Cici PR Ltd | Professional & scientific | 2026 |
| Ciel UK Limited | Wholesale & retail | 2006 |
| Ciela BOO Ltd | Wholesale & retail | 2018 |
| Ciemak Ltd | Transport & logistics | 2010 |
| Cienna Limited | Financial services | 2013 |
| CIF Holdings Limited | Real estate | 2016 |
| Cigkofte Foods Ltd | Hospitality | 2023 |
| Cimpanu Ltd | Mining & quarrying | 2025 |
| Cinderford Transport Ltd | Transport & logistics | 2014 |
| Cine Tune Production Limited | Arts & recreation | 2025 |
| Cineflow Ltd | Administrative & support | 2024 |
| Cinematica Productio Ltd | Information & communication | 2026 |
| Cingulate Health Ltd | Health & social care | 2017 |
| Cinnabar Brook Company Limited | Information & communication | 2025 |
| Cinnamon Leisure Ltd | Hospitality | 2019 |
| Cinnamon Property Holdings Ltd | Real estate | 2022 |
| Cinzee Limited | Wholesale & retail | 2022 |
| Ciorbita Ltd | Wholesale & retail | 2025 |
| Cipher Knights Ltd | Information & communication | 2024 |
| Circle (Leicester) Limited | Real estate | 2014 |
| Circle 101 CIC | Health & social care | 2025 |
| Circle Developers Ltd | Construction | 2016 |
| Circle of Friends CIC | Health & social care | 2025 |
| Circle Pizza Ltd | Hospitality | 2026 |
| Circle Taxis Limited | Wholesale & retail | 2001 |
| Circleone Technologies Limited | Other services | 2020 |
| Circular Property Holdings Limited | Financial services | 2024 |
| Circular Property Investments Limited | Real estate | 2024 |
| Circus Adventures Ltd | Arts & recreation | 2010 |
| Citadale Holdings Ltd | Financial services | 2024 |
| Citadel Capital Investments Ltd | Professional & scientific | 2016 |
| Citadel Property and Estates Management Limited | Real estate | 2023 |
| Citadel Real Estate Ltd | Real estate | 2022 |
| Cite DMS Limited | Information & communication | 2000 |
| Cite DMS Trustee Ltd | Professional & scientific | 2025 |
| Cited Limited | Professional & scientific | 2018 |
| Citi Afrique Company Ltd | Extraterritorial | 2024 |
| Citi Electricians Ltd | Construction | 2026 |
| Citi IT Services Ltd | Information & communication | 2020 |
| Citius Engineering Ltd | Professional & scientific | 2022 |
| Citrus Ltd | Extraterritorial | 2016 |
| City & County Care Services Limited | Health & social care | 2001 |
| City Access Limited | Construction | 2013 |
| City Air (UK) Limited | Wholesale & retail | 2006 |
| City Arcade Limited | Wholesale & retail | 2020 |
| City Bandit Limited | Other services | 2022 |
| City Builds Group Ltd | Real estate | 2024 |
| City Butcheries Ltd | Hospitality | 2017 |
| City Cars Transport Ltd | Transport & logistics | 2023 |
| City Courier Services Ltd | Transport & logistics | 2019 |
| City Cricket Academy Limited | Arts & recreation | 2007 |
| City Criminal Lawyers Ltd | Professional & scientific | 2014 |
| City Desk Recycling and Removals Ltd | Manufacturing | 2010 |
| City Fabric Finishers Limited | Manufacturing | 1994 |
| City Fabrications (Leicester) Ltd | Construction | 2011 |
| City Group (Leicester) Limited | Administrative & support | 2018 |
| City Laser & Skin Clinic Limited | Health & social care | 2013 |
| City Leather Co.(Leicester) Limited | Real estate | 1956 |
| City Leicester Limited | Administrative & support | 2024 |
| City Living (Leicester) Limited | Construction | 1995 |
| City Looks Salon Ltd | Other services | 2023 |
| City Luxury Apartments Ltd | Real estate | 2023 |
| City Market Store Ltd | Wholesale & retail | 2025 |