| Conker Homes Ltd | Construction | 2025 |
| Connected Executive Travel Limited | Other services | 2018 |
| Consillium Business Services Ltd | Professional & scientific | 2021 |
| Constellation Chemicals Ltd | Manufacturing | 2020 |
| Contactbuilder Limited | Information & communication | 2009 |
| Containerspenkridge Ltd | Wholesale & retail | 2026 |
| Cookecare Ltd | Health & social care | 2025 |
| Cool Cat Collars Ltd | Wholesale & retail | 2020 |
| Coolshaping Clinic Limited | Other services | 2018 |
| Cooper's Property Development Ltd | Real estate | 2022 |
| Coppice Road 26/02/1965 Limited | Extraterritorial | 2014 |
| Coronatus Ltd | Hospitality | 2016 |
| Cosmik Carrot Ltd | Information & communication | 2014 |
| Cotswold Online Auctions Ltd | Wholesale & retail | 2026 |
| Country Interiors Limited | Wholesale & retail | 2019 |
| Countrywide Environmental Services Limited | Construction | 2005 |
| Courage Software 2014 Limited | Information & communication | 2014 |
| Court Bank Farm Limited | Professional & scientific | 2023 |
| Cowley Hill Farm Ltd | Agriculture & fishing | 2023 |
| CP Meats Ltd | Wholesale & retail | 2019 |
| CPL Ceilings and Partitions Limited | Construction | 1996 |
| CPL Holdings (Midlands) Limited | Financial services | 2021 |
| CPL Steel Framing Ltd | Construction | 2008 |
| CR Foods Ltd | Hospitality | 2025 |
| Craig's Carpets Limited | Wholesale & retail | 2019 |
| Crakemarsh Hall Management Company Limited | Households | 2004 |
| CRB Installations Limited | Construction | 2019 |
| Create Coding Ltd | Information & communication | 2023 |
| Creative Aluminium Fabrications Limited | Manufacturing | 2014 |
| Creative Cutting Co Limited | Other services | 2005 |
| Creative Retreats Ltd | Arts & recreation | 2025 |
| Creature Comforts Rugeley Limited | Wholesale & retail | 2009 |
| Critter Kind Ltd | Agriculture & fishing | 2025 |
| Croboride Precision Engineering Ltd | Manufacturing | 2024 |
| Crossland Construction Limited | Construction | 2016 |
| Crumbs (Rugeley) Limited | Hospitality | 2002 |
| CRW Heating & Plumbing Ltd | Construction | 2025 |
| Crystal Clear (Central) Limited | Administrative & support | 2009 |
| CTH Awards Limited | Education | 2009 |
| Ctrm Transport Limited | Transport & logistics | 2012 |
| Custodian Electrical Ltd | Construction | 2011 |
| D & G Properties Limited | Real estate | 2014 |
| D & J Property Rentals Limited | Hospitality | 2021 |
| D & L Corbishley Ltd | Transport & logistics | 2003 |
| D J & G R Turner Limited | Wholesale & retail | 2022 |
| D P Fibre Optic Services Limited | Administrative & support | 1997 |
| D Till Limited | Other services | 2011 |
| D Walker Supplies Limited | Manufacturing | 2010 |
| D&A Groundwork Limited | Construction | 2021 |
| D&L Investments Ltd | Real estate | 2017 |
| D.A. Cotton Limited | Construction | 2002 |
| D.A.R.K Cars Limited | Transport & logistics | 2010 |
| D.F.J Social Work Services Ltd | Health & social care | 2025 |
| Dan's-Con Limited | Construction | 2020 |
| Danielle Corcoran Ltd | Other services | 2023 |
| Dans Specialist Renovations Ltd | Construction | 2026 |
| Dapple Heath Project Limited | Construction | 2023 |
| Dareb Ltd | Construction | 2023 |
| Darwin Park Construction Ltd | Construction | 2005 |
| Dave Daniels Ltd | Professional & scientific | 2025 |
| David Castledine (Landscaping) Ltd | Administrative & support | 2003 |
| Dawn Chorus PR Ltd | Information & communication | 2014 |
| DB Logic Limited | Information & communication | 1995 |
| DD Carpentry & Joinery Ltd | Construction | 2013 |
| DE Havilland Worldwide Limited | Administrative & support | 2005 |
| Deacon Agricultural Ltd | Extraterritorial | 2022 |
| Dealmead Properties Limited | Real estate | 2013 |
| Deans Croft Consultancy Limited | Professional & scientific | 2023 |
| Deathproof Cycles Limited | Wholesale & retail | 2025 |
| Decade Enterprise Ltd | Real estate | 2022 |
| Degenerate Art Collective Limited | Other services | 2023 |
| Delabere House Ltd | Real estate | 2016 |
| Delabere House Management Ltd | Real estate | 2026 |
| Desiherbs Ltd | Wholesale & retail | 2026 |
| Desired Bathrooms Limited | Construction | 2022 |
| Detailkingz Limited | Other services | 2018 |
| Detech Ltd | Professional & scientific | 2015 |
| DF Glass Installation Limited | Other services | 2018 |
| DFL Property Maintenance Ltd | Construction | 2022 |
| DH Property Holdings Limited | Real estate | 2004 |
| Diamond Renovation Limited | Construction | 2007 |
| Digbits Limited | Wholesale & retail | 1991 |
| Dione Interiors Ltd | Wholesale & retail | 2014 |
| Direct Mail Publicity(Birmingham)Limited | Professional & scientific | 1964 |
| DJK Aldridge Limited | Arts & recreation | 2016 |
| DKD Products Ltd | Hospitality | 2018 |
| DM Barber Services Ltd | Wholesale & retail | 2018 |
| DM Fabrication & Coatings Limited | Manufacturing | 2018 |
| Dmed Contracting Ltd | Construction | 2024 |
| DNK Recovey Services Ltd | Transport & logistics | 2026 |
| Docall Limited | Households | 2005 |
| DON Goodman Limited | Information & communication | 2010 |
| Doorolla Ltd | Wholesale & retail | 2020 |
| Downes Bromley Consulting Limited | Professional & scientific | 2024 |
| DP Power Solutions Ltd | Construction | 2026 |
| DPC Investments Ltd | Real estate | 2008 |
| DR David M Jones Mrcvs Ltd | Professional & scientific | 2023 |
| DR K Aesthetics Ltd | Other services | 2023 |
| DR K Beauty Ltd | Other services | 2025 |
| Drayton Autos Limited | Wholesale & retail | 2025 |