| 1 Higher LUX Street Management Company Limited | Households | 2024 |
| 119 Milehouse Road Management Company Limited | Real estate | 1994 |
| 16 ST. Stephens Road Limited | Real estate | 1988 |
| 2 Move Consultancy Ltd | Transport & logistics | 2025 |
| 2:22 Property Ltd | Real estate | 2022 |
| 38 Cambridge Road (Plymouth) Limited | Extraterritorial | 2008 |
| 38 Clarendon Drive Property Management Ltd | Real estate | 2010 |
| 59 JH Property Limited | Real estate | 2022 |
| 59JH Caravan Pitches Limited | Hospitality | 2024 |
| 59JH Construction Limited | Construction | 2024 |
| 84 Durnford Street Plymouth Management Company Limited | Real estate | 2008 |
| 85 to 111 Catchfrench (Odds) RTM Co Ltd | Households | 2025 |
| A a K Joinery Ltd | Manufacturing | 2024 |
| A B Webb Construction Ltd | Construction | 2025 |
| A Counts (SW) Limited | Professional & scientific | 2010 |
| A J Wilson & Co Ltd | Construction | 1996 |
| A Mitchell Construction Ltd | Construction | 2025 |
| A Walton Stone & Masonry Ltd | Construction | 2023 |
| A&G Group Limited | Professional & scientific | 2016 |
| A.C. and B.M. Enterprises Limited | Other services | 1991 |
| A.J.B. Design Projects Limited | Information & communication | 1987 |
| AB Wire Ltd | Wholesale & retail | 2008 |
| AC Models Spares M Ltd | Wholesale & retail | 2020 |
| Ace-Arb Limited | Administrative & support | 2019 |
| Adam Moore Services Ltd | Construction | 2025 |
| Adminimal Ltd. | Administrative & support | 2018 |
| Admiral Kernow Retreats Ltd | Hospitality | 2025 |
| Adrenalin Quarry Limited | Arts & recreation | 2009 |
| Adrian Sargent Limited | Construction | 2002 |
| Adrian Webb Construction Limited | Construction | 2008 |
| Advanced Management Services (UK) Ltd | Agriculture & fishing | 2018 |
| Agricultural and Industrial Maintenance Solutions Limited | Construction | 2023 |
| AJL (Liskeard) Limited | Transport & logistics | 2019 |
| Akkos Kebab Ltd | Hospitality | 2021 |
| Alec Snell Construction Ltd | Construction | 2013 |
| Alex Maclean Group Limited | Administrative & support | 2025 |
| Align Business Consultancy Ltd | Professional & scientific | 2022 |
| ALL Seasons Entertainment Ltd | Arts & recreation | 2026 |
| ALL Star Contract Services Limited | Administrative & support | 2023 |
| Alliance Bridging Company Limited | Financial services | 2006 |
| Alliance Property (SW) Limited | Real estate | 2007 |
| Allied Service Transport Limited | Public administration | 2022 |
| Almarine Ltd | Manufacturing | 2022 |
| Alusen Limited | Professional & scientific | 2015 |
| Amed Kebab Ltd | Hospitality | 2025 |
| Anatomiq Ltd | Extraterritorial | 2026 |
| Andanan Nature Conservation CIC | Agriculture & fishing | 2025 |
| Andrew Borlase General Builders Ltd | Construction | 2011 |
| Andrew Wilton Carpentry & Joinery Limited | Construction | 2008 |
| Anna’S ARK Ltd | Professional & scientific | 2024 |
| Another Robot Ltd | Information & communication | 2017 |
| Apple Tree Court Management Company (SW) Limited | Households | 2021 |
| APS Civils Ltd. | Construction | 2017 |
| Apt-Gb Ltd | Extraterritorial | 2015 |
| Aptopay Consulting Limited | Professional & scientific | 2011 |
| Aqua Reach AI Ltd | Professional & scientific | 2025 |
| Aquaheat (SW) Limited | Construction | 2010 |
| Archbishop Rowan Williams Hermitage Trust Property Ltd | Other services | 2013 |
| Areateam Limited | Households | 1986 |
| Armatus Limited | Professional & scientific | 2009 |
| Ascs (Cornwall) Limited | Administrative & support | 2016 |
| ASH Park Close Management Company Limited | Households | 2019 |
| ASH Park Developments Limited | Construction | 2018 |
| Aspen Management Company Limited | Hospitality | 1988 |
| Aspire Support Ltd | Health & social care | 2019 |
| Asset TAG Limited | Administrative & support | 2023 |
| ATG European Transport Ltd | Transport & logistics | 2026 |
| Austen Holdings Ltd | Financial services | 2018 |
| Autumn Ace Pigeon Challange Limited | Arts & recreation | 2026 |
| Avoca Capital Holdings Ltd | Financial services | 2022 |
| Avoca Construction Ltd | Construction | 2013 |
| Avoca Developments Ltd | Professional & scientific | 2020 |
| Avoca Property Group Ltd | Professional & scientific | 2020 |
| Avosec Limited | Professional & scientific | 2005 |
| AWL Properties Ltd | Real estate | 2015 |
| Azure Hygiene Limited | Extraterritorial | 2019 |
| B & BJ Phillips Builders Ltd | Construction | 2019 |
| B H Insolvency Limited | Financial services | 2019 |
| B Scoble Developments Ltd | Construction | 2021 |
| B Spring Construction Ltd | Construction | 2017 |
| Backyard Fellas Ltd | Administrative & support | 2025 |
| Barnfield Care Limited | Health & social care | 2015 |
| Barnstone Properties Limited | Construction | 2025 |
| Bass Ltd | Administrative & support | 2026 |
| Bateman & Lynch Cars Ltd | Wholesale & retail | 2019 |
| Bateman Financial Management Limited | Professional & scientific | 1998 |
| Bateman Wealth Management Limited | Financial services | 1999 |
| Beckline Clothing Ltd | Wholesale & retail | 2021 |
| Bedrox Limited | Real estate | 2002 |
| Ben's Plaice Liskeard Ltd | Hospitality | 2024 |
| Benfo Ltd | Hospitality | 2017 |
| Beyond Mobility Ltd | Wholesale & retail | 2022 |
| BG & GG Property Ltd | Real estate | 2016 |
| BGS Aviation Services Ltd | Manufacturing | 2021 |
| BGW International Ltd | Professional & scientific | 2016 |
| Bindown Court Maintenance Company Limited | Households | 2015 |
| Binks Consultants Limited | Health & social care | 2021 |
| Biodiversity NET Gain (BNG) Ltd | Extraterritorial | 2020 |
| Biodiversity NET Gain Ltd | Extraterritorial | 2020 |
| Birch Management Limited | Households | 1995 |