| 121HT Ltd | Health & social care | 2025 |
| 1NETWORKING Limited | Other services | 2020 |
| 1VOICE - Communicating Together | Information & communication | 2010 |
| 20'S Plenty for US CIC | Health & social care | 2024 |
| 4G Capital Limited | Financial services | 2010 |
| 55 Carpentry Ltd | Manufacturing | 2022 |
| A G Building Consultancy Ltd | Professional & scientific | 2017 |
| A.W.S Mechanical Engineering Services Limited | Professional & scientific | 2026 |
| AB Aesthetic Services Limited | Professional & scientific | 2020 |
| AB Architects Limited | Administrative & support | 2016 |
| Abacus Day Nurseries Ltd | Education | 2014 |
| Abbey Hub Ltd | Information & communication | 2025 |
| Abersoch CAE DU Limited | Hospitality | 2017 |
| Absolute Planning Solutions Limited | Professional & scientific | 2013 |
| AC & M Solutions Ltd | Professional & scientific | 2024 |
| Access & Security Solutions Limited | Administrative & support | 2002 |
| Accountancy & Business Advice Lymm Limited | Professional & scientific | 2011 |
| ACS Food Consultancy Limited | Professional & scientific | 2016 |
| ACTIV8CONNECT Ltd | Information & communication | 2026 |
| Active Alice Coaching Limited | Health & social care | 2024 |
| AD Software Solutions Limited | Information & communication | 2014 |
| Adashuk (Cheshire) Limited | Professional & scientific | 2021 |
| Adcott Ltd | Health & social care | 2009 |
| ADS Waste Recycling Limited | Water & waste | 2011 |
| Advanced Steam Traction Services Ltd | Manufacturing | 2014 |
| Advanced Steam Traction Trust | Manufacturing | 2014 |
| AEB Lymm Limited | Administrative & support | 2020 |
| AF2KP Ltd | Households | 2026 |
| AG Marketing and Promotions Limited | Administrative & support | 2017 |
| AGY Plumbing & Heating Ltd | Construction | 2021 |
| AHP Projects Ltd | Real estate | 2020 |
| AIM Paraplanning Ltd | Financial services | 2016 |
| AJ Landscapes (Cheshire) Limited | Administrative & support | 2022 |
| AJP Childcare Limited | Education | 2006 |
| Ajtcoffee Limited | Hospitality | 2025 |
| AJW IT Consultancy Limited | Information & communication | 2015 |
| Akómi Limited | Professional & scientific | 2023 |
| ALA Cleaning Services Ltd | Administrative & support | 2024 |
| Albireo Live Ltd | Arts & recreation | 2024 |
| Alex Parker (2013) Limited | Professional & scientific | 2013 |
| Alex Parker Limited | Professional & scientific | 2005 |
| Alison Hill Business Services Ltd | Professional & scientific | 2025 |
| Allyson Bentley Hygienist Ltd | Health & social care | 2022 |
| Altrincham Aces Ice Hockey Club Ltd | Arts & recreation | 2018 |
| Amarelo Holdings Ltd | Wholesale & retail | 2023 |
| AMB UK Properties Ltd | Real estate | 2025 |
| AML Football Agent Services Ltd | Arts & recreation | 2024 |
| AMP Corporate Communications Ltd | Professional & scientific | 2023 |
| Amts Services Ltd | Administrative & support | 2015 |
| AN Post House Ltd | Wholesale & retail | 2026 |
| Andrew Collier Photography Limited | Professional & scientific | 2010 |
| Andrew Murray Golf Limited | Arts & recreation | 2000 |
| Andrew R Edwards Ltd | Professional & scientific | 2019 |
| Andrews Legal Limited | Professional & scientific | 2016 |
| ANE Properties Ltd | Real estate | 2017 |
| Angela J Care Ltd | Health & social care | 2019 |
| Angels Nursery Limited | Education | 2000 |
| Anisha Skincare Limited | Other services | 2019 |
| Anthony Millar Golf Limited | Arts & recreation | 2008 |
| APL Subco Limited | Extraterritorial | 2025 |
| Apley Village Day Nursery Limited | Education | 2016 |
| Applied Data Systems Ltd | Information & communication | 2016 |
| Applied Maintenance Technology Ltd | Professional & scientific | 2008 |
| Apps Real Estate Ltd | Real estate | 2023 |
| Aquarius IT Ltd | Information & communication | 2004 |
| Aquarius Management Ltd | Information & communication | 2012 |
| Aquarius Technology Ltd | Information & communication | 2004 |
| Arbovia Contracting Ltd | Agriculture & fishing | 2025 |
| ARC Fitness Zone Ltd | Other services | 2022 |
| Arca 888 Limited | Financial services | 2024 |
| Arca Construct Limited | Administrative & support | 2010 |
| Archivist 1OF1 Ltd | Wholesale & retail | 2025 |
| Arctech Services Limited | Construction | 2025 |
| ARK Mediation Ltd | Health & social care | 2024 |
| Arroe Facilities Management Limited | Professional & scientific | 1998 |
| Arrow Lettings Ltd | Real estate | 2013 |
| Artspa Ltd | Arts & recreation | 2025 |
| ASK Holiday Homes Ltd | Hospitality | 2021 |
| ASM Rope Access Ltd | Construction | 2025 |
| Aston Berkeley Services Limited | Real estate | 1987 |
| Aston Berkeley Systems Limited | Information & communication | 1998 |
| Atas Gents Barbers Ltd | Other services | 2025 |
| Atheni Limited | Wholesale & retail | 2020 |
| Audient Commerce Limited | Information & communication | 2021 |
| Auey Medicines Limited | Professional & scientific | 2020 |
| Averroes Properties Ltd | Real estate | 2025 |
| Baewills Limited | Real estate | 2020 |
| Banner & Co (Lymm) Ltd | Real estate | 2008 |
| Barbara Blundell Limited | Real estate | 2023 |
| Barber Shop Lymm Limited | Other services | 2015 |
| Barlow-Phillips Ltd | Real estate | 2025 |
| Bars Incorporated Limited | Hospitality | 2021 |
| BCW Services Limited | Information & communication | 2019 |
| Beamreach (UK) Limited | Manufacturing | 2006 |
| Bear HUG Events Limited | Administrative & support | 2009 |
| Bears PAW Lymm Ltd | Hospitality | 2026 |
| BEE Happy Nursery and Preschool Ltd | Health & social care | 2012 |
| Bellissima Girl Aesthetics & Beauty Limited | Other services | 2023 |
| BEN Nelson Cameraman Ltd | Information & communication | 2022 |
| Bennet Distribution Limited | Transport & logistics | 2026 |