| 15 Treloggan Management Limited | Households | 2016 |
| 16/22 Lovelace Gardens Surbiton (NO.2) Residents Association Limited | Households | 1974 |
| 360XEC Executive Search Limited | Administrative & support | 2013 |
| 43 Fore Street Ltd | Other services | 2019 |
| 4K Construction Limited | Construction | 2017 |
| 5 and 6 Fairpark Apartments Management Company Ltd | Households | 2018 |
| 50 North 4 West Ltd | Information & communication | 2019 |
| 6 Western Terrace Bodmin Management Company Limited | Households | 2011 |
| 73 Molesworth Street Management Company Ltd. | Households | 2011 |
| A & H Duct Cleaning Services Ltd | Administrative & support | 2025 |
| A & K Architectural Services Ltd | Professional & scientific | 2014 |
| A a Arborists Limited | Agriculture & fishing | 2007 |
| A C Vehicle Repairs Ltd | Wholesale & retail | 2022 |
| A E Dales Consulting Ltd | Information & communication | 2025 |
| A Spark Limited | Construction | 2021 |
| A T Auto Repairs Limited | Wholesale & retail | 2018 |
| A. C. Burn Electrical Contractors Limited | Construction | 2005 |
| A.P.B Masonry Ltd | Construction | 2024 |
| A.T.Howie Limited | Agriculture & fishing | 1966 |
| AB Waste Solutions Ltd | Water & waste | 2016 |
| Abesco Fire Limited | Manufacturing | 2012 |
| Access Radiotherapy Ltd | Professional & scientific | 2018 |
| Adcarpentry & Construction Ltd | Other services | 2016 |
| ADD Sustainable Construction Ltd | Construction | 2016 |
| ADP Property Services Limited | Real estate | 2006 |
| Adrenaline Productions Limited | Information & communication | 2023 |
| Aftan Limited | Other services | 2012 |
| After Glow Tanning Cornwall Ltd | Other services | 2022 |
| Agentic Leisure Limited | Information & communication | 2026 |
| Aiki Digital Ltd | Professional & scientific | 2021 |
| AIM Financial Solutions Limited | Financial services | 2019 |
| Air Source South West Ltd | Construction | 2019 |
| Air Testing SW Limited | Professional & scientific | 2015 |
| AJ Remote Sales Limited | Professional & scientific | 2022 |
| AJT Property (SW) Ltd | Construction | 2026 |
| Allen Valley Slates Limited | Wholesale & retail | 2002 |
| Allen Valley the Fire Place Ltd | Wholesale & retail | 2012 |
| Almeria Self Catering Limited | Real estate | 2025 |
| Alstock Music Festival Ltd | Arts & recreation | 2020 |
| Altitude Medicine Syndicate LLP | | 2023 |
| Alwil Solutions Limited | Information & communication | 2016 |
| Anchorpoint Property Solutions Ltd | Households | 2025 |
| Angel Garden Services Ltd | Administrative & support | 2012 |
| Apex DRY Lining & Plastering Limited | Construction | 2019 |
| App Asset Management LLP | | 2016 |
| Approved Coatings & Sealants Ltd | Construction | 2017 |
| Approved Roofing Ltd | Construction | 2017 |
| Apricot Computers Limited | Extraterritorial | 2022 |
| Apricot Sports Medicine Limited | Other services | 2008 |
| Arborcology Ltd | Professional & scientific | 2025 |
| Armstrong Groundworks Ltd | Construction | 2017 |
| Artemis R & L Limited | Professional & scientific | 2023 |
| Arugam Films Ltd | Professional & scientific | 2010 |
| Aseity SW Limited | Information & communication | 2016 |
| Asgard Cornwall CIC | Arts & recreation | 2023 |
| Assess and Align Energy Limited | Professional & scientific | 2024 |
| Astar Home Developments Ltd | Construction | 2026 |
| Atlantic Construction (Cornwall) Ltd | Construction | 2020 |
| Atlantic Developments (Cornwall) Ltd | Construction | 2020 |
| Atlantic House (Polzeath) Management Limited | Households | 2018 |
| Atwell Farm Park Ltd | Hospitality | 2023 |
| Auto Spray Body Work Ltd | Wholesale & retail | 2024 |
| Autotec ST KEW Highway Ltd | Wholesale & retail | 2023 |
| Avrupa Limited | Wholesale & retail | 2018 |
| B and T Holding Ltd | Financial services | 2026 |
| B.E. Heating and Plumbing Ltd | Construction | 2015 |
| Backus Law LLP | | 2009 |
| Baileys Law Legal Services Ltd | Extraterritorial | 2015 |
| Baileys Law LLP | | 2010 |
| Balmad Limited | Health & social care | 2024 |
| Banners and Beyond Ltd | Manufacturing | 2025 |
| Barley House Management Company Limited | Real estate | 2011 |
| Bay 28 Ltd | Financial services | 2017 |
| Baytree Hill Management Company Limited | Households | 2007 |
| Bazeley Developments Ltd | Construction | 2012 |
| BC Site Engineering Ltd | Construction | 2026 |
| BE Home Property Management Ltd | Households | 2025 |
| Beachfield Apartments Management Company Ltd | Households | 2023 |
| Bears Property & Developments Ltd | Construction | 2026 |
| Beatrice Road 1965 Limited | Extraterritorial | 2014 |
| Beaumont's Associates Limited | Professional & scientific | 2022 |
| Bedonline Limited | Agriculture & fishing | 1990 |
| Bello Wild Food Limited | Administrative & support | 2016 |
| Bennallick Ltd | Information & communication | 2023 |
| Berryfield and District Community Association Trustees Limited | Extraterritorial | 2008 |
| Berryfield and District Community Centre Limited | Other services | 2008 |
| Bespoke Traders Ltd | Other services | 2016 |
| Besttip Holdings Limited | Professional & scientific | 2008 |
| Besttip Limited | Real estate | 1999 |
| Betty Boop Limited | Manufacturing | 2005 |
| BFP Project Management Limited | Construction | 2014 |
| Black Sky Systems Ltd | Professional & scientific | 2011 |
| Blisland Commons Limited | Agriculture & fishing | 2001 |
| BLK Globalwide Ltd | Transport & logistics | 2023 |
| Blue Coast Kitchen Design Studio Ltd | Professional & scientific | 2016 |
| Blue Ocean Apartments Limited | Extraterritorial | 2015 |
| Blue Ocean C S Limited | Administrative & support | 2020 |
| Blue Tomato Cafe Limited | Hospitality | 2006 |
| Bluesky Express Export Ltd | Transport & logistics | 2025 |
| Bluntrock Brewery Ltd | Manufacturing | 2019 |