| Blackhawk Offshore Support Services Limited | Professional & scientific | 2012 |
| Board Envelopes (2012) | | 1991 |
| Boddp Limited | Health & social care | 2010 |
| Body Logic Therapies (Ellon) Limited | Health & social care | 2025 |
| BON Accord Granite Ltd. | Manufacturing | 1997 |
| Boshoff and Krause Ltd. | Professional & scientific | 2010 |
| Bounce City Ltd | Arts & recreation | 2024 |
| Boyd Hydraulics Limited | Manufacturing | 2001 |
| Bravium International Ltd | Administrative & support | 2025 |
| Breed Industrial Limited | Agriculture & fishing | 2018 |
| Bremcaran Limited | Hospitality | 2010 |
| Brewdog Employee Benefit Trust Limited | Administrative & support | 2022 |
| Brilliant Skies Ltd | Information & communication | 2013 |
| Bronie Consultants Ltd | Professional & scientific | 2013 |
| Brookhouse Contract Services Limited | Administrative & support | 2005 |
| Brookies Driving School Limited | Education | 2021 |
| Bruce Cowie Electrical Ltd | Manufacturing | 2025 |
| Bruce Farms Limited | Agriculture & fishing | 1996 |
| Bruce King Joinery Ltd. | Construction | 2006 |
| Burgeon Publishing Ltd | Information & communication | 2021 |
| Burnett Taxis Ltd | Transport & logistics | 2024 |
| C & M Kitchen Engineers Limited | Construction | 2021 |
| Cairnadailly Wind Turbine Limited | Energy | 2015 |
| Cairnhill Farm Ltd | Professional & scientific | 2024 |
| Cairnrowan Custom Homes Ltd | Construction | 2016 |
| Cairnrowan Farms Ltd | Agriculture & fishing | 2022 |
| Cairnrowan Limited | Professional & scientific | 2012 |
| Cairns More (Scotland) Ltd | Professional & scientific | 2010 |
| Caledonian Opera Company | Arts & recreation | 1992 |
| Caledonian Treepac Limited | Agriculture & fishing | 2000 |
| Campins Taekwon-Do Ltd | Arts & recreation | 2023 |
| Cape Dream Investments LP | | 2017 |
| Capulford Ltd. | Agriculture & fishing | 2003 |
| Cardinghill Renewables Limited | Administrative & support | 2011 |
| Cardno Property Partnership Limited | Real estate | 2009 |
| Castle Park Nursery Limited | Health & social care | 2026 |
| Castlepark Autobody Limited | Wholesale & retail | 2007 |
| CDP Collectables Limited | Wholesale & retail | 2023 |
| CDP Groundworks Ltd | Construction | 2026 |
| Chalabi House Ltd | Hospitality | 2025 |
| Chapelton Accountancy Services Limited | Professional & scientific | 2021 |
| Chapelton Financial Limited | Financial services | 2022 |
| Chapelton Wealth Management Limited | Professional & scientific | 2022 |
| Charles Reid Ltd. | Administrative & support | 2006 |
| Chris Harper Joinery Limited | Construction | 2021 |
| Chris Labrooy Limited | Arts & recreation | 2012 |
| Christie Property Leasing Ltd | Real estate | 2022 |
| City and Rural Property Services Ltd | Real estate | 2022 |
| CJ Prawnstar Ltd | Agriculture & fishing | 2022 |
| CJJ Services Ellon Ltd | Construction | 2025 |
| Cjmjc Limited | Professional & scientific | 2022 |
| Cjmm Property Services Ltd | Real estate | 2025 |
| Clan DEE Ltd. | Construction | 2006 |
| Clay and Grain Limited | Manufacturing | 2025 |
| Clearon Services Limited | Water & waste | 2017 |
| Cliff House Care Limited | Hospitality | 1996 |
| Cloffrickford Renewable Energy Company Limited | Administrative & support | 2012 |
| CLOUD3D Ltd | Manufacturing | 2016 |
| Cloudlete Ltd | Information & communication | 2025 |
| Cocommercial Limited | Professional & scientific | 2023 |
| Coer International Limited | Professional & scientific | 1991 |
| Colin Massie Windows & Joinery Ltd. | Construction | 2006 |
| Collingwood Enterprises Ltd | Professional & scientific | 2009 |
| Concept Casks Limited | Manufacturing | 2021 |
| Concrete Reality Ltd | Wholesale & retail | 2020 |
| Conmara Limited | Information & communication | 2023 |
| Conmeg Limited | Professional & scientific | 1998 |
| Controlshield Ltd | Information & communication | 2024 |
| Copper Cask Holdings Ltd | Other services | 2019 |
| Copperworx Plumbing Co. Ltd | Construction | 2025 |
| Core (OIL and GAS) Limited | Professional & scientific | 2021 |
| Core Mantle Limited | Professional & scientific | 2026 |
| Corocomps Ltd | Arts & recreation | 2026 |
| Corrosion Associates Limited | Professional & scientific | 1999 |
| Cost Solutions Limited | Professional & scientific | 2022 |
| Cottack Ltd | Manufacturing | 2023 |
| Coullie Coffee Limited | Hospitality | 2026 |
| Country Kids Limited | Health & social care | 2005 |
| CR Plastering Limited | Construction | 2019 |
| Craigdon Construction Limited | Administrative & support | 2017 |
| Craigmuir Services Limited | Real estate | 2025 |
| Craigstore Limited | Manufacturing | 2007 |
| Crane Solutions Scotland Ltd | Transport & logistics | 2022 |
| Cranetek Services (Aberdeen) Ltd | Manufacturing | 2022 |
| CRB System Management Ltd | Administrative & support | 2023 |
| CRH Machining Limited | Manufacturing | 2013 |
| Crimond Thornton Ltd | Professional & scientific | 2016 |
| CRM Piping Design Ltd | Administrative & support | 2013 |
| Croft Autotech Ltd | Manufacturing | 2012 |
| Crosshill Enterprises Limited | Other services | 2016 |
| Crownholm Limited | Construction | 2023 |
| CS Welding Services Limited | Construction | 2024 |
| Cultercullen Farms Limited | Agriculture & fishing | 2026 |
| Cute Rainbow Scoopz Ltd | Wholesale & retail | 2025 |
| Cybertig Ltd | Manufacturing | 2022 |
| D & J Ritchie (Cars) Ltd. | Wholesale & retail | 2007 |
| D. Work & SON | | 1989 |
| Dalmore Engineering Consultants Limited | Professional & scientific | 2017 |
| Dark KB Limited | Wholesale & retail | 2020 |
| Darren Bruce Construction Limited | Extraterritorial | 2020 |