| 1 Cornwall Barber Ltd | Other services | 2025 |
| 105A and B Holmbush Road Limited | Hospitality | 2013 |
| 361 Management Limited | Professional & scientific | 2014 |
| 41 Oakley Street Residents Association Limited | Households | 1985 |
| 491 West Estates Ltd | Households | 2026 |
| 55 & 57 ST Nicholas Street Limited | Professional & scientific | 1989 |
| 68 Bozdag Limited | Hospitality | 2023 |
| 7/8 the Sands Limited | Extraterritorial | 2015 |
| A Reekie Property Services Limited | Construction | 2003 |
| A Riddell Ltd | Hospitality | 2019 |
| A2B Towbars Limited | Wholesale & retail | 2025 |
| Absolute Flooring (South West) Limited | Construction | 2010 |
| Acacia Publishing Ltd | Information & communication | 2007 |
| Accommodating Kernow Limited | Hospitality | 2025 |
| Admaps Ltd | Information & communication | 2013 |
| Agilecom Ltd | Information & communication | 2014 |
| AGW Technologies Ltd | Information & communication | 2026 |
| AK Corporate Ltd | Professional & scientific | 2026 |
| Alban Digital Limited | Manufacturing | 1998 |
| Alexander and Co (Wadebridge) Limited | Financial services | 2021 |
| Alfred Quaife & Co Limited | Extraterritorial | 2002 |
| Algoa Associates Limited | Information & communication | 2025 |
| Alias Food Limited | Hospitality | 2020 |
| ALL Style Barber Ltd | Other services | 2024 |
| All-Formwork Ltd | Construction | 2009 |
| Allum Kernow Ltd | Hospitality | 2025 |
| Altidoc Ltd | Professional & scientific | 2025 |
| Altitude Management Ltd | Other services | 2013 |
| Altnaharrie Holdings Ltd | Financial services | 2016 |
| Amble Power Limited | Manufacturing | 2014 |
| Andreas Construction (SW) Ltd | Construction | 2018 |
| Andrews and Mills Construction Limited | Construction | 2012 |
| Angus Webster Architects Ltd | Professional & scientific | 2020 |
| Ann's Cottage (Retail) Limited | Wholesale & retail | 2009 |
| Ann's Cottage (Warehouse) Limited | Wholesale & retail | 2004 |
| Ann's Cottage Surf Shop (Wadebridge) Limited | Wholesale & retail | 2003 |
| Apollo Films Studio Limited | Information & communication | 2016 |
| Aptreview Ltd | Professional & scientific | 2018 |
| Arcari Limited | Real estate | 2004 |
| Arctic Wolf Games Ltd | Manufacturing | 2021 |
| Around the Houses Limited | Financial services | 2021 |
| Arrans Aesthetics Limited | Other services | 2025 |
| Art of Fishing Limited | Wholesale & retail | 2021 |
| Astralis Communications Ltd | Information & communication | 2014 |
| Atelier 3 Limited | Professional & scientific | 2007 |
| Atlantic ARC Planning Ltd | Administrative & support | 2017 |
| Atlantic Build Ltd | Construction | 2025 |
| Atlantic Consultancy Services Limited | Other services | 2003 |
| Atlas Management Services Group Limited | Other services | 2017 |
| Audit Point Limited | Other services | 1992 |
| Austroflamm UK Limited | Wholesale & retail | 2025 |
| Autumnus Energy Limited | Energy | 2014 |
| B.Jeal Contracting Ltd | Other services | 2023 |
| Babeleigh CE Turbine Limited | Energy | 2012 |
| Barff Limited | Arts & recreation | 2006 |
| Barrell Sculpture Limited | Manufacturing | 2009 |
| Barry Hazelnut Ltd | Real estate | 2026 |
| Bassett Bros. Limited | Construction | 2009 |
| Bath Stays Ltd | Real estate | 2019 |
| BE Creative Cornwall CIC | Education | 2022 |
| BE Still Drinks Limited | Manufacturing | 2025 |
| Beach Box (Ferry Point) Limited | Hospitality | 2017 |
| Beach Box Mawgan Porth Limited | Hospitality | 2017 |
| Beckenham Publishing Limited | Information & communication | 2004 |
| Bedstead Hosts Ltd | Hospitality | 2024 |
| Berry FOX Ltd | Manufacturing | 2026 |
| Best Advisers Ltd | Public administration | 2022 |
| Betty Toddy Ltd | Wholesale & retail | 2018 |
| Bijou Productions Limited | Arts & recreation | 1999 |
| Bike Smart (Cornwall) Limited | Arts & recreation | 2013 |
| Binkbonk Ltd | Real estate | 2024 |
| Bintwo Limited | Wholesale & retail | 2013 |
| Birdcage Pictures Limited | Information & communication | 2026 |
| BK Kiddleywink Ltd | Hospitality | 2023 |
| Blable Ltd | Energy | 2013 |
| Blackpool Turbine Ltd | Energy | 2013 |
| Blue Port Advisors Limited | Administrative & support | 2020 |
| Blue Port Estates Limited | Real estate | 2015 |
| Blue Port Holdings Limited | Professional & scientific | 2015 |
| Blue Streak Aviation Ltd | Manufacturing | 2025 |
| Board IT and Skim IT Ltd | Construction | 2020 |
| Bodare Management Company Limited | Households | 2000 |
| Bodellick Enterprises Limited | Energy | 2013 |
| Bodiy Built Gym Ltd | Arts & recreation | 2023 |
| Bodmin Youth Football Club Limited | Arts & recreation | 2023 |
| BOO Collectibles Limited | Wholesale & retail | 2019 |
| Boss 7AD Limited | Hospitality | 2023 |
| Boundary House Investments Limited | Real estate | 2000 |
| Bovacott Farm Limited | Agriculture & fishing | 2004 |
| Box Projects Worldwide Ltd | Arts & recreation | 2025 |
| Bramblemor Limited | Manufacturing | 2026 |
| Braslou Biere Ltd | Manufacturing | 2022 |
| Bricknells Toy & Nursery Ltd. | Wholesale & retail | 2007 |
| Bridge Bike Hire Limited | Administrative & support | 2015 |
| Bridge Tools Ltd | Wholesale & retail | 2014 |
| Bright White Space Limited | Information & communication | 2008 |
| Broad Park Close Management Limited | Professional & scientific | 2011 |
| Broom Groundworks Ltd | Construction | 2026 |
| Buchanan Wines Ltd. | Wholesale & retail | 2016 |
| Bucket & Spade Developments Limited | Real estate | 1992 |