| BLUPRINTS3D Ltd | Manufacturing | 2024 |
| Bonds Taxi Services Limited | Transport & logistics | 2020 |
| Boombox Entertainment Ltd | Information & communication | 2020 |
| Booths Family Funeral Services Ltd | Other services | 2021 |
| Bosky Rider Services Limited | Extraterritorial | 2019 |
| Bouffage Limited | Hospitality | 2020 |
| Bowers Electricals Limited | Manufacturing | 1985 |
| Bowers Group of Companies Limited | Extraterritorial | 2016 |
| Bowers Projects Limited | Professional & scientific | 2015 |
| BPU Plastics Limited | Manufacturing | 2011 |
| Bram Properties Ltd | Real estate | 2015 |
| Brandle's Boutique Ltd | Other services | 2024 |
| Breeze (Modern Living) Limited | Real estate | 2007 |
| Broadbents Solicitors LLP | | 2011 |
| Broadwire Limited | Information & communication | 2021 |
| Brook Blinds Ltd | Construction | 2022 |
| Brown Health Ltd | Public administration | 2020 |
| Brukselka Property Ltd | Real estate | 2022 |
| Buffalo Bespoke Resin Surfaces Ltd | Construction | 2025 |
| Buffalo Driveways Limited | Administrative & support | 2016 |
| Build With Naomi Ltd | Wholesale & retail | 2026 |
| Build Witham Developments Ltd | Construction | 2022 |
| Buildmasteruk Limited | Manufacturing | 2022 |
| Burger Wurger Ltd | Hospitality | 2024 |
| Burnett Academy Limited | Arts & recreation | 2017 |
| Burton House Property Management Limited | Real estate | 2018 |
| Butlin Metal Decking Ltd | Construction | 2025 |
| Buxton & Co Site Services Ltd | Construction | 2026 |
| Buzz Music and Arts CIC | Education | 2024 |
| Bwise Properties Ltd | Construction | 2021 |
| C a Transport (Midlands) Ltd | Transport & logistics | 2023 |
| C L Railway Limited | Professional & scientific | 2019 |
| C P Pilates Ltd | Arts & recreation | 2024 |
| C WE R Here Community Interest Company | Hospitality | 2020 |
| C WE R Here Complex Care Limited | Health & social care | 2023 |
| C WE R Here Youth Limited | Hospitality | 2023 |
| C&C Flooring and Design Ltd | Construction | 2025 |
| C&C Property Services Ltd | Real estate | 2026 |
| C&I Home Improvement Ltd | Construction | 2015 |
| C.M.D Hospitality Ltd | Hospitality | 2023 |
| Calke Estates Limited | Professional & scientific | 2020 |
| Capture Intelligent Systems Ltd | Administrative & support | 2026 |
| Car Cloud Pro Ltd | Information & communication | 2018 |
| Cariole Limited | Financial services | 2014 |
| Carlin & Family Company Limited | Financial services | 2022 |
| Carlin Security Services Ltd | Administrative & support | 2022 |
| Carriage Return Transport Solutions Limited | Information & communication | 2023 |
| Cars in Containers Limited | Manufacturing | 2007 |
| Cavcare Limited | Health & social care | 2018 |
| CB Rail Fitter Services Ltd | Manufacturing | 2018 |
| Cb.Rem Limited | Construction | 2021 |
| CCI Quantity Surveying Ltd | Construction | 2013 |
| Ccrm Renovations Ltd | Real estate | 2026 |
| CE Property Solutions Ltd | Real estate | 2024 |
| Celko Limited | Construction | 2011 |
| Chambers MSC Limited | Professional & scientific | 2025 |
| Champion Glazing Ltd | Construction | 2021 |
| Chevin Court Management Company Limited | Professional & scientific | 1993 |
| Church Street PUB Co Limited | Hospitality | 2021 |
| CJ Entertainment Hire Ltd | Arts & recreation | 2022 |
| CK Food 88 Ltd | Hospitality | 2024 |
| Clarence Property Management Limited | Financial services | 2010 |
| Clarity Property Services Ltd | Real estate | 2025 |
| Closset Clobber by CAZ Ltd | Wholesale & retail | 2026 |
| CND Developments Ltd | Construction | 2018 |
| CND Property Limited | Real estate | 2017 |
| Coachbellaby Ltd | Other services | 2023 |
| Coho Group Ltd | Real estate | 2025 |
| Collective Homes Ltd | Real estate | 2026 |
| Colson Group Limited | Financial services | 2025 |
| Colson Trailers Limited | Manufacturing | 2021 |
| Colson Transport Limited | Transport & logistics | 2006 |
| Colsons Grab and Plant Hire Ltd | Transport & logistics | 2009 |
| Concept Plastic Packaging Ltd | Manufacturing | 1998 |
| Constructionlines Limited | Wholesale & retail | 2006 |
| Contact Electricals Ltd | Construction | 2021 |
| Contour Bespoke Joinery Ltd | Construction | 2024 |
| Cooperbuild Limited | Real estate | 2020 |
| Copeland's Group Ltd | Financial services | 2025 |
| Core Cable Ltd | Professional & scientific | 2023 |
| Core Ceys Ltd | Professional & scientific | 2023 |
| Core Clean Ltd | Water & waste | 2020 |
| Core Colour Ltd | Professional & scientific | 2023 |
| Core Complete Ltd | Administrative & support | 2023 |
| Core Concrete Ltd | Professional & scientific | 2023 |
| Core Consumables Ltd | Professional & scientific | 2023 |
| Core Copper Ltd | Professional & scientific | 2023 |
| Core Cultivate Ltd | Professional & scientific | 2022 |
| Count on ME Accountant Limited | Professional & scientific | 2018 |
| Courier 2 YOU Ltd | Transport & logistics | 2025 |
| Courtellie Renovations Ltd | Real estate | 2026 |
| Cpbrickworkconstruction Ltd | Construction | 2025 |
| CR15 Projects and Engineering Ltd | Manufacturing | 2019 |
| Crane Geotech Ltd | Professional & scientific | 2025 |
| Crankys Bike Parts Ltd | Wholesale & retail | 2017 |
| Creation Floors Ltd | Construction | 2017 |
| CS Manufacturing Limited | Wholesale & retail | 2022 |
| CTA Direct Limited | Wholesale & retail | 2025 |
| Cullum Detuners Investments Limited | Financial services | 1993 |
| Cullum Detuners Limited | Manufacturing | 1955 |