| Byron Commercial Properties Limited | Construction | 2011 |
| C&C NDT Ltd | Professional & scientific | 2018 |
| C.Robertsons Rentals Limited | Real estate | 2025 |
| C9LLS Management Services Limited | Professional & scientific | 2014 |
| Caasy Ltd | Mining & quarrying | 2019 |
| Cafe Kingdom Limited | Hospitality | 2009 |
| Campbell Cleasby Consulting Ltd | Professional & scientific | 2003 |
| Campsie View Care Limited | Health & social care | 2024 |
| Carbonbrain Ltd | Information & communication | 2025 |
| Castle Hills Berwick Ltd | Construction | 2006 |
| Castlemains Developments Limited | Real estate | 2002 |
| CCS Europe Ltd | Professional & scientific | 2019 |
| Cedara Residential Ltd | Real estate | 2020 |
| Cenacolo Community UK | Other services | 2001 |
| Champion Barber Ltd | Professional & scientific | 2017 |
| Cheswick Capital Limited | Real estate | 2004 |
| Cheswick Nominees Ltd | Extraterritorial | 2012 |
| Cheviot Vets Ltd | Professional & scientific | 2015 |
| Chris Riddell Plumbing and Heating Limited | Construction | 2022 |
| Churchwood Partnership Ltd | Professional & scientific | 2024 |
| Clayfield House Management Limited | Extraterritorial | 2004 |
| Cleet Court Freehold Limited | Real estate | 2020 |
| Cleveland Alliances Ltd | Manufacturing | 1992 |
| Clonlee Ltd | Real estate | 2020 |
| Close Consulting Ltd | Information & communication | 2022 |
| Cockcroft (Property Services) Limited | Wholesale & retail | 2020 |
| Coldstream Bridge Company Ltd | Agriculture & fishing | 2016 |
| Colinton Care Limited | Health & social care | 2024 |
| College Valley Estates Limited | Agriculture & fishing | 1953 |
| Communication Common Ltd | Administrative & support | 2011 |
| Company Funding Options Limited | Financial services | 2014 |
| Cookcraft Kitchen Ltd | Wholesale & retail | 2003 |
| Copiatek Ltd | Professional & scientific | 2025 |
| Coulls Ltd | Hospitality | 2026 |
| Country Life Services Ltd. | Real estate | 2003 |
| Courtnays Cleaning Company Limited | Administrative & support | 2025 |
| Cpfastfoodsne Limited | Hospitality | 2018 |
| Crabtree & Crabtree Lettings Ltd | Administrative & support | 2009 |
| Craigieknowes Care Limited | Health & social care | 2024 |
| Create a Space CIC | Arts & recreation | 2026 |
| Cresswell Builders Limited | Construction | 2002 |
| Crosthwaite Terrace 1957 Limited | Extraterritorial | 2014 |
| Crownsmith Limited | Health & social care | 2009 |
| Crust to Crust Ltd | Hospitality | 2025 |
| Cuddico Ltd | Real estate | 2014 |
| Cumbrae Lodge Care Limited | Health & social care | 2024 |
| Cutting Edge Mortgages Ltd | Financial services | 2019 |
| Cxropeacess Ltd | Construction | 2024 |
| D Campbell Holdings Ltd | Real estate | 2017 |
| D F Wishart (1857) Ltd | Professional & scientific | 2020 |
| Darrell Smith Limited | Professional & scientific | 2012 |
| Dawson Fishing Limited | Agriculture & fishing | 2015 |
| DC Gymnastics Limited | Arts & recreation | 2015 |
| DE Vere Park Hill Ltd | Real estate | 2023 |
| DE Vere Stays Ltd | Real estate | 2025 |
| Deighton Estates Ltd | Real estate | 2021 |
| Denebank & Company Limited | Professional & scientific | 2025 |
| Dewar Farm Limited | Arts & recreation | 2015 |
| Diagnostic 2000 Ltd | Wholesale & retail | 2003 |
| Dioo Kurdish Barber Limited | Other services | 2025 |
| Direct Pets Limited | Wholesale & retail | 2015 |
| Dodds Building Contractors Ltd | Construction | 2019 |
| Dog Wash Solutions Ltd | Other services | 2026 |
| Dominion Consulting Limited | Professional & scientific | 2014 |
| Douglas Properties Ltd | Real estate | 2025 |
| DR Forster Ltd | Health & social care | 2011 |
| DR Refurb North East Ltd | Manufacturing | 2025 |
| Dune Consultancy Limited | Professional & scientific | 2013 |
| Dunhill and Mcgrouther Limited | Administrative & support | 1950 |
| DV Rennie Limited | Agriculture & fishing | 2017 |
| E P Electrical Ltd | Construction | 2022 |
| E.W.T Distribution Ltd | Transport & logistics | 2020 |
| E4 Personal Training Ltd | Arts & recreation | 2016 |
| Eagle Tech Group Ltd | Professional & scientific | 2023 |
| Eaglex Elite Ltd | Real estate | 2025 |
| East Allerdene Management Company Limited | Real estate | 2003 |
| East Holburn Farm Steading Management Company Limited | Households | 2024 |
| East ORD Engineering Limited | Manufacturing | 2023 |
| Easy Life Plumbing Ltd | Construction | 2019 |
| EAT, Sleep, Ride | Other services | 2017 |
| EBI Learning Ltd | Education | 2021 |
| Eden Blue Limited | Professional & scientific | 2014 |
| Edinburgh Mobility Solutions Limited | Wholesale & retail | 2018 |
| Edinburgh Stairlifts Limited | Wholesale & retail | 2018 |
| Eduardo Goncalves Ltd | Professional & scientific | 2011 |
| Eirlys Lloyd Company Services Ltd | Administrative & support | 2015 |
| Ellen Black Limited | Administrative & support | 2007 |
| EMS Engineering Ltd | Professional & scientific | 2021 |
| Engage-Ed Ltd | Education | 2023 |
| Enigma Managing Consultants Ltd | Information & communication | 2015 |
| Envirologics Limited | Professional & scientific | 2008 |
| Escape Berwick Ltd | Arts & recreation | 2019 |
| Family FUN Centre Limited | Hospitality | 1992 |
| Fantasy Prints Group Limited | Financial services | 2021 |
| Farm Steps CIC | Education | 2022 |
| Fenwick Granary (Lettings) Ltd | Hospitality | 2021 |
| Flannigan & Border Area 5 Limited | Water & waste | 2018 |
| Flannigan & Border Skip Hire Area 1 Limited | Water & waste | 2011 |
| Flannigan & Border Skip Hire Area 2 Ltd | Water & waste | 2017 |
| Flannigan & Border Skip Hire Area 3 Ltd | Water & waste | 2017 |