| 166KURD CUT Barbers Ltd | Other services | 2025 |
| A B Mowing Ltd | Administrative & support | 2024 |
| Abel Drainage Ltd | Water & waste | 2020 |
| Adam Crowe Window Cleaning Ltd | Administrative & support | 2025 |
| Advanced Trees Ltd | Agriculture & fishing | 2026 |
| AF Commercial Diving Ltd | Construction | 2026 |
| AFC Valves UK Limited | Wholesale & retail | 2022 |
| Ahoy Hospitality Ltd | Hospitality | 2025 |
| Ahoy Shoreside Limited | Hospitality | 2025 |
| Alasdair Walker Ltd | Professional & scientific | 2014 |
| Alder Holdings Limited | Extraterritorial | 2017 |
| Alpha Building Contracts Limited | Construction | 2011 |
| Ardenslate Developments Limited | Construction | 2026 |
| Ardentinny Community Trust Limited | Other services | 2003 |
| Ardentinny Ltd | Education | 2016 |
| Ardnahein Care Limited | Health & social care | 2014 |
| Ardnahein Estates Limited | Health & social care | 2014 |
| Ardnahein Home Care Limited | Health & social care | 2014 |
| Argyll & Bute Chauffeur Driven Services Ltd | Transport & logistics | 2026 |
| Argyll Access Ltd | Construction | 2025 |
| Argyll Active Paws Ltd | Wholesale & retail | 2024 |
| Argyll and Bute Rape Crisis | Health & social care | 2010 |
| Argyll Contract Management Ltd | Professional & scientific | 2026 |
| Argyll Data Development Ltd | Information & communication | 2023 |
| Argyll Design & Build Ltd | Construction | 2026 |
| Argyll Development Holdings Limited | Financial services | 2026 |
| Argyll Development Management Limited | Information & communication | 2025 |
| Argyll Energy Development Ltd | Energy | 2023 |
| Argyll Escapes Ltd | Agriculture & fishing | 2020 |
| Argyll Financial Services Limited | Financial services | 2012 |
| Argyll Fire Services Ltd | Public administration | 2025 |
| Argyll Forest Products Limited | Manufacturing | 2009 |
| Argyll Forestry Services Limited | Agriculture & fishing | 2016 |
| Argyll Groundcare Maintenance Ltd | Administrative & support | 2026 |
| Argyll Infrastructure Holdings Limited | Financial services | 2025 |
| Argyll Mausoleum Limited | Arts & recreation | 2009 |
| Argyll Print & Design Ltd | Information & communication | 2015 |
| Argyll Property Care Ltd | Administrative & support | 2015 |
| Argyll Ropes and Winds Ltd | Construction | 2024 |
| Argyll Sales and Letting Services Limited | Real estate | 2020 |
| Argyll Smokery Limited | Manufacturing | 2023 |
| Argyll Tree Surgeons Limited | Administrative & support | 2016 |
| Argyll Valet Center Limited | Extraterritorial | 2022 |
| Argyll Ventures Limited | Construction | 2024 |
| Armstrong Plumbing and GAS Services Limited | Construction | 2025 |
| ARV 1964 Ltd | Extraterritorial | 2012 |
| Asgard LLP | | 2016 |
| Atreides Wind Services Ltd | Energy | 2023 |
| Auchamore Consulting Ltd | Professional & scientific | 2019 |
| Auto Marine Electrics Ltd. | Manufacturing | 2010 |
| Autonomi Limited | Information & communication | 2002 |
| AWH Limited | Construction | 2003 |
| Balamik Instruments (Holdings) Limited | Real estate | 1987 |
| Bandm Technical Services Ltd | Professional & scientific | 2022 |
| Bannachra Developments Limited | Construction | 2006 |
| Bederac Limited | Wholesale & retail | 1994 |
| Belmont Lane Units Ltd | Real estate | 2023 |
| Benmore and Kilmun Community Development Trust | Other services | 2003 |
| Best Scottish Tours Ltd | Administrative & support | 2005 |
| Bitchin Tunes Limited | Manufacturing | 2026 |
| Bite Size Solutions Limited | Professional & scientific | 2025 |
| Blairmore Hydro Ltd | Energy | 2012 |
| Bluebell Property Investments Limited | Real estate | 2001 |
| Brogan Contracts Ltd | Construction | 2024 |
| Bullet Entertainment Limited | Wholesale & retail | 2005 |
| C and R Rentals Limited | Real estate | 2017 |
| Cadora Cafe Ltd | Hospitality | 2005 |
| Caisteal Court Limited | Information & communication | 2000 |
| Caledonian Laser Services Ltd | Manufacturing | 2025 |
| Cameron's Dairy Ltd | Wholesale & retail | 2010 |
| Campbells Decorators (Kirn) Limited | Other services | 2015 |
| Castle Toward Estate Limited | Professional & scientific | 2016 |
| Central Garage Dunoon Ltd | Wholesale & retail | 2026 |
| Chen Trading Co. Limited | Extraterritorial | 2004 |
| Chilli Bite Limited | Hospitality | 2019 |
| CJ Bros Property Ltd | Real estate | 2024 |
| Clear Bright Things Limited | Arts & recreation | 2025 |
| Cloudblock Limited | Manufacturing | 2018 |
| Clyde Coast Exterior Services Ltd | Construction | 2026 |
| Clyde Corner Cafe Ltd | Hospitality | 2024 |
| CMS Joinery Ltd | Construction | 2016 |
| Coast by Taylor Ltd | Hospitality | 2024 |
| Coast Coffee by Charlotte Ltd | Hospitality | 2025 |
| Coast Events Limited | Hospitality | 2020 |
| Colintraive and Glendaruel Development Trust | Other services | 2008 |
| Collier Family Butcher | | 1992 |
| Collins Brolly Consultancy Limited | Administrative & support | 2017 |
| Connic Developments Ltd | Construction | 2022 |
| Cooper and Sons Forestry Contractors Limited | Agriculture & fishing | 2019 |
| County Garage Dunoon Ltd | Wholesale & retail | 2026 |
| Cowal Car Components Ltd | Wholesale & retail | 2026 |
| Cowal Community Energy | Other services | 2024 |
| Cowal Community Sports Project Ltd. | Arts & recreation | 2003 |
| Cowal Construction People Ltd | Construction | 2023 |
| Cowal Express Ltd | Transport & logistics | 2021 |
| Cowal Golf and Leisure Limited | Arts & recreation | 2024 |
| Cowal Home & Hygiene Services Limited | Water & waste | 2024 |
| Cowal Home Care Limited | Health & social care | 2025 |
| Cowal Physiotherapy Limited | Health & social care | 2013 |
| Cowal Play and Family Therapy C.I.C. | Health & social care | 2018 |