| Charlieboybbq Ltd | Manufacturing | 2022 |
| Charlotte Mowbray School of Dance Ltd | Arts & recreation | 2002 |
| Charlotte Rose Interiors Limited | Households | 2008 |
| Charming Vogue Limited | Wholesale & retail | 2024 |
| Charnley Arnold Property Limited | Real estate | 2021 |
| Charterhouse Investment Property Limited | Construction | 2010 |
| Chasing Yesterday Limited | Information & communication | 2025 |
| Chataway & Fowler Ltd | Health & social care | 2012 |
| Checkpoint Publishing Ltd | Financial services | 2025 |
| Cheech Ltd | Real estate | 2021 |
| Cheers Mobile Bars Ltd | Hospitality | 2017 |
| Chef Celikel Limited | Hospitality | 2019 |
| Chelsea and Sutton Radiology LLP | | 2016 |
| Chelsea Food LN Limited | Wholesale & retail | 2024 |
| Chelsea Properties (Lincoln) Limited | Real estate | 2013 |
| Chelsea Teak Limited | Other services | 2011 |
| Chequers Compliance Ltd | Professional & scientific | 2025 |
| Chequers Safaris Ltd | Administrative & support | 2021 |
| Cherry Estate Management Limited | Real estate | 2022 |
| Cherry Judo Club Ltd | Arts & recreation | 2021 |
| Cherry Lace Limited | Wholesale & retail | 2025 |
| Cherry Specialised Transport Services Ltd | Transport & logistics | 2015 |
| Cherry Tree Garden Centre Limited | Wholesale & retail | 2025 |
| Cherry Tree Homes (GB) Limited | Real estate | 2011 |
| Cherry Willingham Garage Ltd | Wholesale & retail | 2007 |
| Cherry Youth Development Limited | Education | 2024 |
| Chester Brewery Limited | Hospitality | 2024 |
| Chester Close Management Company Limited | Other services | 2001 |
| Chestnut Homes (Land) Limited | Construction | 2003 |
| Chestnut Homes (the Quadrant) Limited | Construction | 2016 |
| Chestnut Street Management Company Limited | Households | 2012 |
| Cheveley Park Exports Ltd | Wholesale & retail | 2008 |
| CHI LOK KAN Ltd | Health & social care | 2026 |
| Chief Safety Consultancy Ltd | Professional & scientific | 2016 |
| Chilanka School of Dance Ltd | Wholesale & retail | 2024 |
| Childhealthy Ltd | Health & social care | 2014 |
| Chill Developments Limited | Real estate | 2025 |
| Chilli Construction Limited | Construction | 2020 |
| Chilli Properties (Lincoln) Limited | Construction | 2026 |
| Chiltern Anaesthetics LLP | | 2018 |
| Chiltern Urology Ltd | Health & social care | 2019 |
| Chimeratek Ltd | Information & communication | 2020 |
| China China (Lincoln) Ltd | Hospitality | 2025 |
| China Inn 21 Ltd | Hospitality | 2025 |
| China Star Billinghay Ltd | Hospitality | 2022 |
| China-England Bridge Cultural and Educational Services Ltd | Education | 2017 |
| Chipperfield Orthopaedics Ltd | Health & social care | 2014 |
| Chips and Cheese Limited | Extraterritorial | 2018 |
| Chiroplus (Collingham) Limited | Health & social care | 2022 |
| Choice Epos Ltd | Information & communication | 2020 |
| Choice Independent Financial Services Limited | Financial services | 2006 |
| Chores Hygiene Management Ltd | Manufacturing | 2008 |
| Chris Bell Roofing Ltd | Construction | 2022 |
| Chris Blake Coaching Ltd | Education | 2024 |
| Chris Fenton Fundraising Limited | Administrative & support | 2016 |
| Chris Gothorp Photography Ltd | Professional & scientific | 2021 |
| Chris Mansfield Landscapes Ltd | Administrative & support | 2003 |
| Chris Sharp Cabinets Limited | Manufacturing | 1988 |
| Chris Vaughan Photography Limited | Professional & scientific | 2020 |
| Chrisalis Holdings Ltd | Financial services | 2020 |
| Chrisalis Woodhall Ltd | Construction | 2022 |
| Christall Healthcare Limited | Health & social care | 2015 |
| Christian Partners in Africa | Health & social care | 1995 |
| Christine East Limited | Health & social care | 2014 |
| Christopher Hubbard Limited | Real estate | 2007 |
| Chronicle Properties Ltd | Real estate | 2021 |
| Chrysalis Builders Limited | Construction | 2026 |
| Chrysalis Construction Limited | Construction | 2006 |
| Chrystal Theofanous Ltd | Professional & scientific | 2018 |
| Chsw Hospitality Limited | Hospitality | 2026 |
| Church Farm (South Kelsey) Management Company Limited | Real estate | 2021 |
| Church Farm Swayfield Ltd | Agriculture & fishing | 2020 |
| Church Hill Hotels Limited | Hospitality | 2008 |
| Church Lane (Lincoln) Limited | Households | 1981 |
| Church Lane Saxilby Limited | Construction | 2020 |
| Church Mice Enterprises Limited | Hospitality | 2017 |
| Church of Steve Limited | Real estate | 2023 |
| Churchill's of Lincoln Limited | Construction | 2022 |
| Churchills (Lincoln) Ltd | Hospitality | 2013 |
| Cica Solutions Ltd | Administrative & support | 2016 |
| Cigar Factory RTM Company Limited | Households | 2025 |
| Cind Minds C.I.C. | Professional & scientific | 2025 |
| Cinntinn UK Limited | Professional & scientific | 2017 |
| Ciqa Ltd | Professional & scientific | 2023 |
| Ciranta Ltd | Real estate | 2024 |
| Circle Property Rentals Ltd | Households | 2022 |
| Circolwyrde Limited | Information & communication | 2009 |
| Circular Squared Drinks Ltd | Manufacturing | 2022 |
| Cirs Academy Limited | Health & social care | 2025 |
| City Airweapons (Lincoln) Limited | Wholesale & retail | 2015 |
| City Antiques Limited | Wholesale & retail | 2025 |
| City Barber Lincoln Ltd | Other services | 2025 |
| City Glass Lincoln Limited | Wholesale & retail | 2025 |
| City HIP & Knee Ltd | Health & social care | 2012 |
| City Quay Investments Ltd | Extraterritorial | 2000 |
| City Scrap Limited | Water & waste | 2010 |
| City Secrets Club Limited | Information & communication | 2025 |
| City Sports Consulting Ltd | Professional & scientific | 2021 |
| City Sweepers of Lincoln Ltd | Administrative & support | 2021 |
| City Van MAN Transport Ltd | Transport & logistics | 2026 |