| 116 Foxhall Road Freehold Limited | Real estate | 2020 |
| 14 Bath Road (Buxton) Limited | Households | 2003 |
| 2 Training Limited | Other services | 2007 |
| 327 Properties Limited | Real estate | 2002 |
| 3QHUB Ltd | Professional & scientific | 2022 |
| 4MAT Systems Ltd | Other services | 1998 |
| 6 the Square Tea Rooms Limited | Hospitality | 2007 |
| A J Buttery Limited | Construction | 2003 |
| A. J. Hall Limited | Construction | 2005 |
| A. J. Welling Limited | Other services | 2007 |
| A. Scott Services Limited | Construction | 2000 |
| A. Sutcliffe & Co. (Footwear) Limited | Hospitality | 1988 |
| A.F.P Garden Services Limited | Administrative & support | 2003 |
| A.F.P. Fire Protection Limited | Public administration | 2003 |
| A.P. Goodwin Limited | Construction | 2003 |
| A.S.L.H Limited | Transport & logistics | 2005 |
| A.W. Bailey Developments Limited | Real estate | 1999 |
| Aaa.Jr Ltd | Construction | 2017 |
| Abacus Sales and Marketing Ltd | Information & communication | 2006 |
| Abstract Signs & Graphics Limited | Manufacturing | 1997 |
| AC Engineering Services Limited | Professional & scientific | 2001 |
| ACS Cabins & Site Services Limited | Construction | 2006 |
| Actionview Limited | Professional & scientific | 1993 |
| Addclad Limited | Professional & scientific | 2000 |
| Adley Hair Design Ltd | Other services | 2019 |
| Adshead Ratcliffe & Company,Limited | Manufacturing | 1944 |
| Advanced GAS Services (Midlands) Limited | Construction | 2004 |
| Advantage Barrier Systems Ltd | Wholesale & retail | 1999 |
| Advik Homes Limited | Construction | 2020 |
| Advik Mart Limited | Wholesale & retail | 2021 |
| AEH Property Nest Ltd | Real estate | 2024 |
| AGE UK Derby & Derbyshire | Wholesale & retail | 1998 |
| Agri-Line Limited | Administrative & support | 2000 |
| Agus Dicarlo Ltd | Information & communication | 2023 |
| Airways Training (Darley Moor) Limited | Arts & recreation | 2006 |
| AJH Bathroom Installations Limited | Construction | 2006 |
| Ajhpro Ltd | Professional & scientific | 2024 |
| Alan Mansford Ltd | Information & communication | 2021 |
| Alden Enterprises Limited | Professional & scientific | 2023 |
| Alex Holliday Limited | Construction | 2007 |
| Alfred Chapel Limited | Real estate | 2004 |
| Alfred Street Garage Ltd | Transport & logistics | 2003 |
| Alkmund Property Limited | Extraterritorial | 2005 |
| Allestree Window Services Limited | Construction | 2002 |
| Allman Communication Ltd | Professional & scientific | 2006 |
| Allsopp & Bamford Holdings Ltd | Financial services | 2024 |
| Alstom (Litchurch) Limited | Financial services | 1983 |
| Alstom Electronics Limited | Extraterritorial | 1994 |
| Alstom Engineering and Services Limited | Manufacturing | 1988 |
| Alter Rock Limited | Arts & recreation | 2008 |
| Alton Engineering LLP | | 2002 |
| Amber Energy Limited | Professional & scientific | 2002 |
| Amber Mill Furniture Manufacturing Company Limited(The) | Real estate | 1909 |
| Amber Valley Council for Voluntary Service | Other services | 2003 |
| American Database Services Limited | Professional & scientific | 2007 |
| AMI Windows Limited | Construction | 2006 |
| AMO Amas Limited | Health & social care | 2010 |
| Ampere Electrics Limited | Wholesale & retail | 2006 |
| AMS Business Services Limited | Information & communication | 2004 |
| Amy's Properties Ltd | Real estate | 2022 |
| Andawest Engineering Limited | Manufacturing | 1981 |
| Andrew Care Ltd | Health & social care | 1999 |
| Andrew Parkin Limited | Financial services | 2003 |
| Andy Tooze Limited | Professional & scientific | 2005 |
| Another Power Limited | Construction | 2007 |
| Ansini Limited | Manufacturing | 1995 |
| Apex Property Services Limited | Real estate | 1994 |
| Applegate Construction Limited | Construction | 2006 |
| Aquabox | Health & social care | 2003 |
| Aquanauts UK Limited | Arts & recreation | 2006 |
| Arbo (Holdings) Limited | Manufacturing | 2007 |
| Arme Limited | Information & communication | 2003 |
| Armeg Limited | Manufacturing | 1999 |
| Arross Engineering Limited | Manufacturing | 2006 |
| Artbeat Limited | Manufacturing | 2003 |
| Arthur Worsley Funeral Services Limited | Other services | 2003 |
| Artyclown Ltd | Manufacturing | 2003 |
| Ascott Weighing Services Ltd | Manufacturing | 2003 |
| ASD Jewellers Limited | Administrative & support | 2003 |
| ASG Group Limited | Manufacturing | 1969 |
| Ashbourne Animal Welfare Allsorts Ltd | Wholesale & retail | 2006 |
| Ashleigh Residential Home Limited | Health & social care | 2002 |
| Ashnet Limited | Real estate | 1989 |
| Astor Industrial Pipework Services (Derby) Limited | Construction | 1998 |
| Atheleas Daughters Training Club Ltd | Professional & scientific | 2014 |
| Atlass Express Ltd | Transport & logistics | 2007 |
| Atwal Construction Limited | Construction | 2003 |
| Austin Engineering Solutions Limited | Professional & scientific | 2007 |
| Auto-Masters Limited | Manufacturing | 1963 |
| Automatic Door Care Limited | Extraterritorial | 1967 |
| Automotive Smart Repair Limited | Wholesale & retail | 2007 |
| Autos Great Britain Limited | Manufacturing | 1987 |
| Avensys Electrical Limited | Construction | 2007 |
| B D Green Roofing Limited | Construction | 2000 |
| B W Financial Services Limited | Financial services | 1998 |
| B&K Hybrid Solutions Limited | Manufacturing | 2021 |
| B.A.B. Tyre & Exhaust Centre Limited | Wholesale & retail | 2006 |
| Bagshaw (Caxterway) Limited | Administrative & support | 2005 |
| Bailey Arts Limited | Wholesale & retail | 2003 |
| Baleares Investment and Loan Company Limited | | 1986 |