| 12 HS LLP | | 2002 |
| 540 Taxis Ltd. | Transport & logistics | 2007 |
| A B Brown Wind Energy Limited | Energy | 2012 |
| A F Noble & SON (Penicuik) Limited | Wholesale & retail | 2008 |
| A G Trading Limited | | 2000 |
| A.C. Lessels Ltd. | Construction | 1998 |
| A.J. Donald Limited | | 2000 |
| AAM Associates Limited | Information & communication | 2000 |
| Aask IT Consultants Limited | Information & communication | 2023 |
| Aberdeen Properties Limited | Real estate | 2003 |
| Aberforth LGP IA Limited | Financial services | 2001 |
| Aberforth LGP IB Limited | Financial services | 2001 |
| Abingworth Bioventures III GP Limited | Financial services | 2000 |
| Ac&H 169 Limited | Transport & logistics | 2003 |
| Ac&H 23 Limited | Transport & logistics | 1998 |
| Access Electrical Limited | Construction | 2006 |
| Achieve Training Ltd | Education | 2007 |
| Actis Executive GP Limited | Administrative & support | 2004 |
| Afton Group Holdings Limited | Financial services | 2001 |
| Alban Investments Limited | Real estate | 1984 |
| Alchemistcbd Limited | Wholesale & retail | 2024 |
| AMA (Cramond) Limited | Construction | 1999 |
| AMA (Fusion) Limited | Construction | 2002 |
| AMA Cramond (Investments) Limited | Real estate | 2003 |
| Andrew Turner LLP | | 2003 |
| ANGEL359 Ltd | Transport & logistics | 2024 |
| Angle Park Auto Centre Limited | Wholesale & retail | 2006 |
| Animal Cells Limited | Professional & scientific | 2020 |
| Anormoss Limited | Real estate | 2001 |
| ARC Property Solution (EDB) Ltd | Real estate | 2025 |
| Ardnastang Estates Limited | Real estate | 1999 |
| Arisaig Electrical Services Ltd | Construction | 2024 |
| ARK Travel (Scotland) Ltd. | Transport & logistics | 2000 |
| Armadale Speedway Club Limited | Arts & recreation | 1999 |
| Arniston Home Farm & Company | | 1988 |
| ASA International Limited | Administrative & support | 2002 |
| Askbio UK Ltd | Professional & scientific | 2010 |
| Auchindinny Mains (2001) | | 2001 |
| Auric Services Limited | Financial services | 2007 |
| Avimar Ltd. | Other services | 2002 |
| Aztel Ltd | Wholesale & retail | 2024 |
| Aztone Limited | Wholesale & retail | 1982 |
| B.W. Mortgages Limited | Financial services | 2005 |
| Backpackers Limited | Hospitality | 1997 |
| Bain of Tarves (Poultry) Limited | Professional & scientific | 1995 |
| Baldev Consulting Limited | Health & social care | 2014 |
| Bania Limited | Real estate | 2021 |
| Barbirolli Square Limited Partnership | | 2006 |
| Barnco Limited | Financial services | 1956 |
| Beanco Limited | Professional & scientific | 1998 |
| Bennett & Robertson (Trustees) Limited | Administrative & support | 1989 |
| Berkeley Contracting Limited | Professional & scientific | 1999 |
| Bernard Hunter Limited | Construction | 1999 |
| Birrell Cabs Ltd. | Transport & logistics | 2000 |
| Blind Cleaning Services Limited | Manufacturing | 1988 |
| Bonaccord Ecosse Limited | Professional & scientific | 2007 |
| Bonnybridge Pharmacy Company Limited | Wholesale & retail | 1929 |
| Botanics Biotech Limited | Professional & scientific | 1999 |
| Braeburn Home | Health & social care | 2007 |
| Braid Hills Shop Limited | Arts & recreation | 1997 |
| Braid Homes Limited | Wholesale & retail | 1993 |
| Braidwood Building Contractors Ltd. | Construction | 2002 |
| Brewster Mcbean | | 1992 |
| Broomhill Day Centre Penicuik | Health & social care | 1997 |
| Brunstane Farming Partnership | | 1997 |
| Bryce Houstoun (Property) Limited | Hospitality | 2002 |
| C.F. Construction Ltd. | Wholesale & retail | 1996 |
| CAB4U LLP | | 2007 |
| Cabcom (Scotland) Ltd. | Information & communication | 1998 |
| Cabrelle Limited | Professional & scientific | 1998 |
| Cafe-Guide | | 2000 |
| Cala 1999 Limited | Financial services | 1999 |
| Caledonian (1986) Limited | Wholesale & retail | 1985 |
| Caledonian Packaging (Holdings) Limited | Financial services | 2005 |
| Campbell Brothers Limited | Manufacturing | 1990 |
| Capital Dynamics General Partners Limited | Financial services | 2000 |
| Capital Theatres | Arts & recreation | 1991 |
| Capital Theatres Trading Limited | Arts & recreation | 1991 |
| Carcant Estates Limited | Agriculture & fishing | 1954 |
| Censo Biotechnologies Ltd | Professional & scientific | 2008 |
| Centotre Two Limited | Hospitality | 2006 |
| CEP II ILP Scotland Limited | Professional & scientific | 2003 |
| Charlie Miller Hairdressing Limited | Other services | 2003 |
| Charlie Miller Salons Limited | Other services | 2004 |
| Chrome Retail Ltd | Wholesale & retail | 2017 |
| Cinven Capital Management (RP) Limited | Financial services | 1999 |
| Cinven Capital Management (TF NO. 1) Limited | Financial services | 2000 |
| Cinven Capital Management (TF NO. 2) Limited | Financial services | 2000 |
| Cinven Capital Management (TF NO. 3) Limited | Financial services | 2000 |
| Clifton Hall School Limited | Education | 1964 |
| Clippens Farmers | | 1994 |
| Comprehensive Design Architects Limited | Professional & scientific | 2006 |
| Coopers Tourmaster Travel (Scotland) Limited | Extraterritorial | 2006 |
| Coralview Limited | Transport & logistics | 1999 |
| Coraza Systems Europe Limited | Professional & scientific | 1980 |
| Cowbraehill Farming Company | | 1987 |
| CPC2K Limited | Manufacturing | 1980 |
| Craigcrook Management Services Limited | Professional & scientific | 2001 |
| Cran Limited | Hospitality | 2001 |
| Crawford Priory Limited | Professional & scientific | 1991 |