| 16 Ounces Ltd | Hospitality | 2024 |
| 16 Whitehall Ltd | Real estate | 2016 |
| 32-34 Market Street Limited | Real estate | 2019 |
| 3CO Consulting Ltd | Professional & scientific | 2026 |
| 47 Degrees Coffee Ltd | Manufacturing | 2014 |
| 53 RAY Street (Management) Limited | Households | 2006 |
| A & C Plumbing & Heating Services Ltd | Construction | 2017 |
| A G S Noise Control Limited | Construction | 2002 |
| A&E Joinery&Glazing Ltd | Construction | 2008 |
| A.Betteridge Ltd | Construction | 2024 |
| A.L Burton Property Ltd | Real estate | 2025 |
| A.L.K. Property Renovations Ltd | Construction | 2011 |
| A.Ward Build Ltd | Construction | 2025 |
| AC Group (Education) Ltd | Education | 2019 |
| Accent Commercial Resources Limited | Manufacturing | 2012 |
| Accident Specialists Ltd | Administrative & support | 2008 |
| Acer Lettings Limited | Real estate | 2014 |
| Acer Training Limited | Education | 2016 |
| Activequine Limited | Information & communication | 2019 |
| Adaptive Stove & Flue Services Ltd | Construction | 2025 |
| ADL Mechanical Systems Ltd | Construction | 2026 |
| Advanced Magnetic Resonance Limited | Manufacturing | 2005 |
| Advik Properties Limited | Real estate | 2019 |
| Aeroteam Limited | Professional & scientific | 2014 |
| Affirm IT Services Ltd | Information & communication | 2017 |
| Agriquip Limited | Professional & scientific | 1993 |
| AHC Construction Limited | Construction | 2015 |
| Airmark Systems Limited | Manufacturing | 1991 |
| AJH Associates Ltd | Professional & scientific | 2019 |
| Alan Colson Limited | Transport & logistics | 2022 |
| Alfreton Amateur Boxing Club Community Interest Company | Arts & recreation | 2024 |
| Alfreton GAS Services Ltd | Construction | 2019 |
| Align the Arrows Limited | Professional & scientific | 2019 |
| ALL Secure 24 Ltd | Administrative & support | 2024 |
| Allsopp Property Solutions Ltd | Construction | 2024 |
| Alter EGO Bars Ltd | Hospitality | 2019 |
| Amber Electrical (Derbyshire) Limited | Construction | 2009 |
| Amber Valley Dance Festival Ltd | Arts & recreation | 2019 |
| Amber Valley Health Ltd | Health & social care | 2018 |
| Amber Valley SAW & Tool Ltd | Manufacturing | 2004 |
| Anansi Theatre Company C.I.C. | Arts & recreation | 2021 |
| Anas 859 Limited | Hospitality | 2023 |
| Andiamo Performance Limited | Arts & recreation | 2025 |
| Angel Medical Limited | Administrative & support | 2006 |
| Animal Nutrition & Health (UK) Limited | Manufacturing | 2024 |
| APC Holdings & Assets Ltd | Financial services | 2025 |
| Apex Custom Paint Works Limited | Administrative & support | 2017 |
| ARB Holdings Derby Ltd | Financial services | 2025 |
| Arcsus Academy Limited | Professional & scientific | 2022 |
| Arcsus Engineering Ltd | Professional & scientific | 2022 |
| Arcsus Holding Limited | Financial services | 2017 |
| Arcsus IT Solutions Holdings Limited | Financial services | 2022 |
| Arcsus IT Solutions Limited | Other services | 2010 |
| Arcsus Property Holding Ltd | Financial services | 2026 |
| Arcsus Property One Ltd | Real estate | 2026 |
| ARG Housing Limited | Real estate | 2019 |
| ARK Professional Ltd | Administrative & support | 2019 |
| ARK Soccer Ltd | Arts & recreation | 2019 |
| Ascent Fire Ltd | Administrative & support | 2026 |
| Ashgrove Care Home Group Ltd | Health & social care | 2024 |
| Ashton Events Limited | Arts & recreation | 2018 |
| AT Your Demand Cleaning Services Ltd | Administrative & support | 2024 |
| Attract Creative Ltd | Professional & scientific | 2023 |
| Audeamus Limited | Information & communication | 2006 |
| AUM Houses Ltd | Real estate | 2025 |
| Autobond Limited | Manufacturing | 1978 |
| Avon Properties Ltd | Real estate | 2018 |
| AW Composite Laminating Ltd | Manufacturing | 2025 |
| B&S Contracting Ltd | Construction | 2022 |
| Baileys Bookkeeping Limited | Professional & scientific | 2014 |
| Bananabrains Limited | Information & communication | 2019 |
| Bansri Enterprise Limited | Real estate | 2026 |
| Barefeet Lodge Tea Rooms Ltd | Hospitality | 2025 |
| Bargain Mall Store Ltd | Wholesale & retail | 2024 |
| Baszlin Motors Ltd | Wholesale & retail | 2021 |
| Baydaza Limited | Other services | 2025 |
| Bb's Public Services Limited | Hospitality | 2022 |
| Beauty & Botox Ltd | Extraterritorial | 2020 |
| BEE Engineering Design Ltd | Professional & scientific | 2024 |
| Beeby Engineering Ltd | Wholesale & retail | 2007 |
| Beeformation Ltd | Arts & recreation | 2019 |
| Beespace Investments Limited | Real estate | 2020 |
| Beespace Lettings Ltd | Real estate | 2020 |
| Beespace Ltd | Professional & scientific | 2017 |
| Belfort Oak Ltd | Health & social care | 2017 |
| Belvedere Care Group Holdings Ltd | Financial services | 2025 |
| Belvedere Care Homes Ltd | Health & social care | 2019 |
| Bespoke Cleaning Solutions Ltd | Administrative & support | 2001 |
| Bespoke Commercial Solutions Ltd | Wholesale & retail | 2024 |
| Best Tread Tyres & Autocentre (Heanor) Ltd | Wholesale & retail | 2018 |
| Bestmix Concrete Limited | Transport & logistics | 2022 |
| Bexon Interactive Limited | Information & communication | 2011 |
| Bigfoot Arts Education (UK) Ltd | Education | 2008 |
| Bigfoot Arts Education CIC | Education | 2024 |
| Birch Industrial Services Limited | Administrative & support | 2011 |
| Blackout Gym Ltd | Arts & recreation | 2022 |
| BLU7 Limited | Real estate | 2016 |
| Blue Shop Heanor Ltd | Wholesale & retail | 2025 |
| Blueprint Renovations Ltd | Construction | 2025 |
| Blueprints Care Ltd | Health & social care | 2018 |