| C & JD Limited | Agriculture & fishing | 2007 |
| Caelus Group Ltd | Financial services | 2024 |
| Cairngorm Consultants Limited | Professional & scientific | 2025 |
| Cairngorm Group Limited | Administrative & support | 2026 |
| Cairngorms Glamping Limited | Manufacturing | 2017 |
| Cameron Electrical Access Limited | Manufacturing | 2007 |
| Cameron J Wilson & Co | | 1984 |
| Cameron Oiltech Limited | Professional & scientific | 2012 |
| Camiestone Limited | Financial services | 2015 |
| Candacraig Farm | | 1991 |
| Candacraig Home Farm | | 1986 |
| Carers Limited | Administrative & support | 1995 |
| Carlton Rock Limited | Administrative & support | 2001 |
| Carnoustie Links Development Limited | Real estate | 2006 |
| Castlehill LLP | | 2001 |
| CDS Forwarding (Stonehaven) Limited | Transport & logistics | 2024 |
| Cfine Enterprise Limited | Real estate | 2007 |
| Christie Developments (Aberdeen) Limited | Real estate | 1977 |
| Christkirk Farms | | 2000 |
| CJC Enterprises Ltd | Hospitality | 2005 |
| Clarkmove Limited | Transport & logistics | 2022 |
| Claymore Homes Limited | Construction | 2007 |
| Clearview Consultancy Limited | Wholesale & retail | 2003 |
| Clubhouse ABZ Ltd | Professional & scientific | 2017 |
| CM Builders Grampian Limited | Construction | 2011 |
| CMB Building Contractors Ltd. | Construction | 2003 |
| Cobra Welding Services Limited | Manufacturing | 2006 |
| Colibri Assets LP | | 2015 |
| Colin Noble (Ames Tapers) Ltd. | Construction | 2002 |
| Colin Simpson(Livestock) Ltd | Administrative & support | 2011 |
| Collynie Farms | | 1992 |
| Community Food Initiatives North East Limited | Wholesale & retail | 2004 |
| Consard Limited | Professional & scientific | 2003 |
| COOPERS1205 Ltd | Hospitality | 2024 |
| Count (Scotland) Limited | Professional & scientific | 2015 |
| Craig Estate Farms | | 1997 |
| Craig Nicoll Timber Limited | Agriculture & fishing | 2006 |
| Craigston Castle Farms (1999) | | 2001 |
| Craigton Developments Limited | Real estate | 1999 |
| Crathie Opportunity Holidays | Hospitality | 1998 |
| Creative Styles Ltd. | Other services | 2003 |
| Crionna Investments Limited | Real estate | 1992 |
| Cromleybank Farms | | 1998 |
| Cromwellside Farms Limited | Agriculture & fishing | 1989 |
| Crossfields Steading Partnership | | 2000 |
| Cruickshank & Partners (Aberdeen) Ltd. | Professional & scientific | 2001 |
| CS Pipeline Engineering Services Ltd | Mining & quarrying | 2007 |
| Culbeuchly Farms | | 1997 |
| Cushnie Farms Partnership | | 1990 |
| D & J Mcbain Limited | Professional & scientific | 2005 |
| D G Jolly Limited Partnership | | 1998 |
| D G S Financial Services Ltd. | Financial services | 2003 |
| D J Keir (Haddoch) Farming 1994 | | 1994 |
| D Kelly Subsea Ltd | Professional & scientific | 2018 |
| D&C Flooring Specialist Limited | Mining & quarrying | 2021 |
| D. Cardno Ltd. | Agriculture & fishing | 2005 |
| D. Paul Associates Limited | Professional & scientific | 2006 |
| Dalijon Investments Limited | Professional & scientific | 2003 |
| Dalijon Properties Limited | Professional & scientific | 2003 |
| Dalwhing Farm Partnership | | 1996 |
| Darroch Learg Hotels Limited | Hospitality | 1989 |
| David O.V. Ltd. | Agriculture & fishing | 2004 |
| David P Leslie | | 2001 |
| David Smith (Plant Hire) Ltd. | Administrative & support | 2002 |
| Davidsons (Fraserburgh) Limited | Construction | 1999 |
| DDH Plumbing and Heating Limited | Construction | 2012 |
| Deeside LOG Cabins Ltd | Wholesale & retail | 2007 |
| Denian Kitchen Design Limited | Construction | 2001 |
| Deveron Geoscience Associates Limited | Mining & quarrying | 1998 |
| DK Meldrum Limited | Professional & scientific | 2004 |
| DNL Engineering Limited | Professional & scientific | 1996 |
| Donard Inspection Services Limited | Other services | 2011 |
| Dorocro Ltd | Professional & scientific | 2017 |
| Dotmopolitan Limited | Information & communication | 2006 |
| Douglas Anderson Computing Limited | Manufacturing | 1998 |
| DOW (Scotland) Limited | Agriculture & fishing | 2017 |
| Drumaber Limited | Manufacturing | 2006 |
| Drumdaig Farm | | 1992 |
| Drumnahive Farm Partnership | | 1991 |
| Dukes Equine Vets Ltd | Professional & scientific | 2002 |
| Duncan's of Deeside Limited | Manufacturing | 2007 |
| Duncanston Farm (1993) | | 1993 |
| Dunecht Garage Ltd. | Wholesale & retail | 1993 |
| Dunnydeer Farms Limited | Agriculture & fishing | 1942 |
| E & a Anderson & SON | | 1987 |
| E Ruxton Ltd | Hospitality | 2014 |
| East Cairnton Farm | | 1990 |
| East-West Trading Association Company | | 1992 |
| Easter Hatton Environmental (Waste Away) Limited | Water & waste | 1987 |
| Eblast Limited | Manufacturing | 1999 |
| Educare Leadership Limited | Professional & scientific | 2002 |
| EJ MAC Limited | Real estate | 1999 |
| Elan Hair Design Ltd. | Other services | 2003 |
| Eleanor Taylor and John Richard Gill | | 1988 |
| Elegant Blooms Limited | Wholesale & retail | 2007 |
| Elektrikal Ltd | Construction | 2022 |
| EM Diagnostics Limited | Professional & scientific | 2000 |
| EMC2 Project Services Limited | Professional & scientific | 2014 |
| Enlim (Scotland) Ltd. | Transport & logistics | 2003 |
| Ennochie Farm Partnership NO. 1 | | 2002 |