| A & J Barker Ltd | Hospitality | 2025 |
| A J Eagle Ltd | Transport & logistics | 2023 |
| AAM QA Consultancy Limited | Information & communication | 2023 |
| Active Home Essentials Ltd | Wholesale & retail | 2024 |
| Aiskew Under Fives Pre-School | Education | 2012 |
| AJ Haulage Fleet Ltd | Transport & logistics | 2018 |
| Amaxus Capital Limited | Professional & scientific | 2021 |
| Amaxus Management Ltd | Extraterritorial | 2012 |
| AMC Surveyors & Property Consultants Limited | Real estate | 2023 |
| Amen House Properties Limited | Real estate | 2003 |
| Anderlow Holdings Limited | Wholesale & retail | 2023 |
| Andrew Ruddick Consulting Ltd | Professional & scientific | 2006 |
| Apasa Limited | Financial services | 2018 |
| APT Consultants Limited | Administrative & support | 2013 |
| Argyle Square (Sunderland) Limited | Real estate | 2021 |
| Argyle Square Academy Limited | Administrative & support | 2019 |
| Argyle Square Developments Limited | Construction | 2005 |
| Argyle Square Estates Limited | Professional & scientific | 2021 |
| Argyle Square Investments Limited | Real estate | 2013 |
| Argyle Square Properties Limited | Real estate | 2003 |
| Argyle Square Property Group Limited | Professional & scientific | 2013 |
| Askquiths Butchers Limited | Wholesale & retail | 2014 |
| Auctus Real Estate Investments Limited | Financial services | 2026 |
| Aysgarth School Trust Limited | Education | 1967 |
| Azandis Ltd | Professional & scientific | 2011 |
| B&R Smith Ltd | Wholesale & retail | 2018 |
| Bahn Sportive Ltd. | Manufacturing | 2023 |
| Bazas Barber NO.4 Ltd | Other services | 2025 |
| Beachmoor Capital Ltd | Financial services | 2026 |
| Beaty Civils Ltd | Construction | 2013 |
| Beckside Hackforth Management Limited | Households | 2020 |
| Bedale Beauty Limited | Extraterritorial | 2014 |
| Bedale Golf Club Limited | Arts & recreation | 1988 |
| Bedale Pizzeria Ltd | Hospitality | 2025 |
| Bedale Riverside Club Limited | Hospitality | 2024 |
| Bedale Skip Hire Limited | Water & waste | 2013 |
| Bellinen Enterprises Ltd | Manufacturing | 2024 |
| Berry Franchise Consultancy Ltd | Extraterritorial | 2008 |
| Bespoke Buildings Yorkshire Limited | Construction | 2022 |
| Better at Home Ltd | Health & social care | 2026 |
| Big Bear Glamping Ltd | Hospitality | 2012 |
| Bike and BAG Ltd | Wholesale & retail | 2025 |
| Biomark Limited | Professional & scientific | 2025 |
| Birch Tree Bloodstock Limited | Agriculture & fishing | 2023 |
| Blue Martlet Limited | Professional & scientific | 2017 |
| Botany Consulting Ltd | Professional & scientific | 2020 |
| Boxing for Fitness North Yorkshire Limited | Arts & recreation | 2025 |
| Bright Beginnings Daycare (2007) Limited | Education | 2007 |
| Brightspark Magnetos Ltd | Wholesale & retail | 2011 |
| Brunch and Brew Ltd | Hospitality | 2019 |
| Budget Machinery Limited | Wholesale & retail | 2005 |
| Bulk Logistics Group Ltd | Transport & logistics | 2016 |
| Bulk Logistics Limited | Financial services | 2015 |
| Burnett Street Management Company Limited | Other services | 2004 |
| C a Wood Homes Ltd | Construction | 2021 |
| CAG Property LLP | | 2015 |
| Caprinae Nutrition Ltd | Professional & scientific | 2023 |
| Carolwaggonbedale Limited | Hospitality | 2019 |
| Carricks (Fish) Limited | Wholesale & retail | 1946 |
| Castle Crown Properties Limited | Households | 2014 |
| Castleford Marketing Limited | Real estate | 1991 |
| CB Farms LLP | | 2009 |
| CFM North East Holdings Ltd | Wholesale & retail | 2018 |
| CFM North East Ltd | Manufacturing | 2011 |
| Chandler Studio Ltd | Real estate | 2019 |
| Chandler Hair Limited | Other services | 2022 |
| Cherry Tree Capital Ltd | Real estate | 2025 |
| Cjny Ltd | Professional & scientific | 2024 |
| Clare Parkin Legal Services Ltd | Professional & scientific | 2020 |
| Cleansweeps North Yorkshire Ltd | Administrative & support | 2025 |
| Cockburn Butchers Limited | Wholesale & retail | 2009 |
| Community Communication Limited | Manufacturing | 2004 |
| Complete KBB Ltd | Wholesale & retail | 2018 |
| Complete Property Repairs Facilities Maintenance Ltd | Administrative & support | 2023 |
| Congcaishi Limited | Hospitality | 2023 |
| Construction Design Safety Consultants Limited | Professional & scientific | 2018 |
| Couples Escapes Limited | Hospitality | 2016 |
| Coxon Brothers Limited | Extraterritorial | 2009 |
| CPS Systems Limited | Professional & scientific | 2019 |
| Croft Autodrome Limited | Real estate | 1963 |
| Cunliffe Lister Consultants Limited | Professional & scientific | 2012 |
| CWA Mawer Insurance Brokers Ltd | Financial services | 2024 |
| D H Pearson Limited | Transport & logistics | 2000 |
| Dale GAS & Electric Limited | Construction | 2020 |
| Dales-Care | Health & social care | 1988 |
| Dalesend Farms Limited | Agriculture & fishing | 2012 |
| Data Clan Holdings Ltd | Financial services | 2025 |
| Data Clan Ltd | Professional & scientific | 2020 |
| Davey Advisory Services Ltd | Information & communication | 2024 |
| Davro Commercial Services Limited | Professional & scientific | 1999 |
| DEM Brown Agricultural Bulk Haulage Ltd | Transport & logistics | 2021 |
| Destinationart Ltd | Professional & scientific | 2024 |
| Distinct Shopfitting Holdings Limited | Financial services | 2015 |
| Distinct Shopfitting Limited | Construction | 2014 |
| DIY and Gardens Limited | Manufacturing | 2005 |
| DLM Landmaster Limited | Extraterritorial | 2000 |
| Dovetail Interiors Limited | Wholesale & retail | 2009 |
| Downtown SJ Limited | Hospitality | 2025 |
| DPK Installations Limited | Construction | 2021 |
| DR Courtnie Beesley-Gibson ND Assessment Ltd | Public administration | 2025 |