| 09862887 Limited | Construction | 2015 |
| 1ST Call Mortgage & Protection Ltd | Information & communication | 2015 |
| 1TO1DESIGNS Limited | Professional & scientific | 2022 |
| 33 Croydon Road Freehold Limited | Real estate | 2023 |
| 33 Croydon Road RTM Company Limited | Real estate | 2020 |
| 360 Bricks Ltd | Real estate | 2020 |
| 37PD Consulting Ltd | Construction | 2025 |
| 3DORO'S Limited | Wholesale & retail | 2019 |
| 4US4 Ltd | Real estate | 2015 |
| 50 50 Transport Limited | Transport & logistics | 2009 |
| 80 Derby Limited | Real estate | 2026 |
| A & V Associates Limited | Professional & scientific | 2015 |
| A D & P Properties Limited | Real estate | 2007 |
| A J M Accountancy Services Ltd | Professional & scientific | 2007 |
| A L Landscaping Ltd | Administrative & support | 2014 |
| A M Pascall and Co Ltd | Professional & scientific | 2015 |
| A R Rhodes Ltd | Water & waste | 2014 |
| A&A Hogg Ltd | Wholesale & retail | 2025 |
| A&B Property Maintenance Ltd | Construction | 2022 |
| A&S PUB Co Limited | Hospitality | 2024 |
| A. P. Site Management Ltd | Construction | 2013 |
| A. R. M. Waste Treatments Limited | Construction | 1990 |
| A.D. Certified Lifting Services Limited | Manufacturing | 1980 |
| A.D.C Construction Ltd | Construction | 2025 |
| A.D.P. (Aluminium Systems) Limited | Manufacturing | 1987 |
| A.R.M. Buildings Limited | Construction | 1974 |
| A1 Number Plates UK Ltd | Manufacturing | 2025 |
| A1 Property Improvements Limited | Construction | 2008 |
| A1 Solar UK Limited | Construction | 2012 |
| A44 Company Limited | Information & communication | 2026 |
| A5 Magazines Ltd. | Information & communication | 2009 |
| A51 Rugeley Ltd | Manufacturing | 2018 |
| AB Design Ltd | Wholesale & retail | 2026 |
| Abbey Garage Limited | Wholesale & retail | 2019 |
| Abbot Services Ltd | Manufacturing | 2003 |
| Abbots Bromley Physiotherapy Limited | Other services | 2010 |
| Abbots Bromley Sports Association | Other services | 2013 |
| Above and Beyond Toys Ltd | Wholesale & retail | 2022 |
| Abowman Properties Ltd | Real estate | 2019 |
| Abph Events Ltd | Arts & recreation | 2022 |
| ABS Consultants for the Environment Ltd | Construction | 2003 |
| Ac&E Property Limited | Real estate | 2023 |
| Acacia Holdings Ltd | Financial services | 2016 |
| Access Health Group Limited | Health & social care | 2024 |
| Access Hope Ltd | Health & social care | 2022 |
| Accounting Insight Limited | Professional & scientific | 2009 |
| Ace Line Plant Limited | Administrative & support | 1997 |
| Acrylisub Ltd | Wholesale & retail | 2024 |
| ACT METERS2U Limited | Professional & scientific | 2025 |
| Active Electrical Services (West Midlands) Ltd | Construction | 2015 |
| Adcol Enterprise Ltd | Transport & logistics | 2022 |
| Adept Facades Limited | Construction | 1996 |
| ADJ Plumbing and Heating Ltd | Construction | 2010 |
| Adlee Consulting Limited | Information & communication | 1998 |
| ADM Recruitment Ltd | Administrative & support | 2024 |
| Adsm Limited | Professional & scientific | 2021 |
| Advance Business Coaching Ltd | Professional & scientific | 2021 |
| Advance Training Services Ltd | Education | 2020 |
| Advantage Restoration Ltd | Construction | 2010 |
| Aelfgar Surgery GPF Limited | Professional & scientific | 2013 |
| Affinity Childrens Services Limited | Health & social care | 2022 |
| Affinityiq Ltd | Information & communication | 2025 |
| AGP Innovation Limited | Manufacturing | 2021 |
| Ahead Barbering GB Ltd | Other services | 2015 |
| AIA Construct Ltd | Construction | 2019 |
| AIM Freight Ltd | Transport & logistics | 2022 |
| Airkart Ltd | Arts & recreation | 2022 |
| AJ Build Property Maintenance & Renovations Ltd | Construction | 2018 |
| AJ Centre for Dance Ltd | Education | 2026 |
| Aj's Sports Lounge Ltd | Hospitality | 2026 |
| AJD Transport Rugeley Ltd | Transport & logistics | 2025 |
| AL Miller Holdings Ltd | Financial services | 2022 |
| Alabaste Ltd | Wholesale & retail | 2018 |
| Alam Kitchen Ltd | Hospitality | 2024 |
| Alan Morris Vehicle Repairs Limited | Wholesale & retail | 2006 |
| Alan Willmore (Builders) Limited | Real estate | 1965 |
| Alder Haulage Ltd | Transport & logistics | 2026 |
| Alfie&Co Ltd | Wholesale & retail | 2024 |
| Alion Motors Ltd | Wholesale & retail | 2024 |
| Alison Joyce-O’Keeffe Ltd | Health & social care | 2024 |
| ALL Counties Scaffolding (Midlands) Limited | Construction | 2009 |
| Allbuild Lofts and Roofing Ltd | Administrative & support | 2022 |
| Allcart Properties Ltd | Households | 2025 |
| Allchloerose Ltd | Professional & scientific | 2020 |
| Allison Brown Limited | Wholesale & retail | 2018 |
| Allpro Recruitment Ltd | Administrative & support | 2025 |
| Alpine Solutions Ltd | Information & communication | 2021 |
| Alrey Property Company Ltd | Construction | 2026 |
| Always Beloved Flower Ltd | Hospitality | 2019 |
| AMF Medical Limited | Health & social care | 2016 |
| AMI Electrical Limited | Construction | 2005 |
| AMP Coaching Ltd | Education | 2020 |
| Amplify IT Operations Limited | Information & communication | 2025 |
| AMQ Healthcare Ltd | Health & social care | 2024 |
| AN ANI 1 Ltd | Hospitality | 2025 |
| Andalex Ltd | Wholesale & retail | 2022 |
| Andrew Mason Photography Limited | Professional & scientific | 2024 |
| Andrew Mason Photography Tours Limited | Professional & scientific | 2024 |
| Andy's Kitchen 888 Ltd | Hospitality | 2023 |
| Anfield Estates Limited | Real estate | 2024 |