| 00849944 Limited | Professional & scientific | 1965 |
| 0161 Holdings Limited | Real estate | 2025 |
| 06718888 Limited | Professional & scientific | 2008 |
| 1 South View (Menston) Management Company Limited | Households | 2016 |
| 1-BILL Solutions Ltd | Professional & scientific | 2019 |
| 100% Human Ltd | Health & social care | 2019 |
| 1000 Peaks Ltd | Financial services | 2025 |
| 104 Skipton Road Management Limited | Households | 2002 |
| 10ABILITY Ltd | Professional & scientific | 2011 |
| 12-14 Crossbeck Road RTM Company Limited | Households | 2010 |
| 14 Yewbank Terrace Management Company Limited | Households | 2009 |
| 15 Tivoli Place Freehold Limited | Real estate | 2026 |
| 1905 Property Ltd | Real estate | 2024 |
| 1906@OGC Limited | Hospitality | 2025 |
| 1926@SMGC Limited | Hospitality | 2025 |
| 1ST Class TPT (UK) Limited | Transport & logistics | 2020 |
| 2024 Investments Ltd | Real estate | 2025 |
| 21 West END Avenue Management Company Limited | Real estate | 2000 |
| 2305 Ltd | Financial services | 2022 |
| 247 Media Group Limited | Arts & recreation | 2006 |
| 272 Holdings Limited | Real estate | 2024 |
| 28 Dragon Parade Ltd | Real estate | 2023 |
| 2K'S Residential Ltd | Real estate | 2025 |
| 360 Fabric Technology (UK) Limited | Professional & scientific | 2015 |
| 360 Textile Technologies Limited | Professional & scientific | 2014 |
| 360DENT Ltd | Manufacturing | 2019 |
| 3VOLUTION Limited | Professional & scientific | 2023 |
| 418DESIGN Limited | Information & communication | 2011 |
| 467 Street Lane Freehold Ltd | Real estate | 2024 |
| 469 Street Lane Freehold Ltd | Real estate | 2024 |
| 4WW Consulting Limited | Professional & scientific | 2017 |
| 53RD Parallel Limited | Professional & scientific | 2009 |
| 6 September Ltd | Wholesale & retail | 2024 |
| 7/63 Performance Autos Limited | Wholesale & retail | 2025 |
| 8A Tivoli Place Ilkley Flat Management Limited | Professional & scientific | 2012 |
| 93 Cycles Ltd | Manufacturing | 2022 |
| A & R Sons Ltd | Other services | 2023 |
| A F Commercial Limited | Financial services | 2009 |
| A Hobbs Limited | Professional & scientific | 2018 |
| A R Properties Group Limited | Real estate | 2026 |
| A S & H (Coform) 102 | Professional & scientific | 1940 |
| A Smile for Life Limited | Health & social care | 2008 |
| A W Renewables Limited | Construction | 2008 |
| A&N Residential Ltd | Real estate | 2025 |
| A-Ha! Distribution Limited | Professional & scientific | 2013 |
| A.F.Johnson Consulting Limited | Professional & scientific | 2003 |
| AA Coding Ltd | Wholesale & retail | 2023 |
| AA Iphones Limited | Other services | 2012 |
| AB Landscape and Design Ltd | Administrative & support | 2024 |
| Abbey Morgan Consultancy Ltd | Other services | 2019 |
| Abbeydale Majorca Limited | Real estate | 2015 |
| Abbeyfield Court Limited | Real estate | 2001 |
| Abbeyfield the Dales Limited | Real estate | 2014 |
| ABN Resource Limited | Professional & scientific | 2012 |
| Abrora UK Ltd | Wholesale & retail | 2018 |
| ABS Insight Limited | Professional & scientific | 2020 |
| Absolute Landscapes Yorkshire Ltd | Administrative & support | 2017 |
| Accentia Corporate Limited | Professional & scientific | 2018 |
| Access Office Solutions Ltd | Wholesale & retail | 2022 |
| Acetech Metals Ltd | Water & waste | 1998 |
| Acuflo Ltd | Information & communication | 2024 |
| Addingham Barbers Limited | Other services | 2023 |
| Addmin Limited | Professional & scientific | 2002 |
| Addy Aviation LLP | | 2017 |
| Adelaide Walker LLP | | 2011 |
| ADJ Consulting Ltd | Professional & scientific | 2023 |
| Adnc Construction Limited | Construction | 2024 |
| Advanced Power Technology Limited | Professional & scientific | 1990 |
| Advanced Therapies Consulting Limited | Professional & scientific | 2020 |
| Advantage Fibres International Limited | Wholesale & retail | 2008 |
| Aegeus Industries Limited | Manufacturing | 2006 |
| Aegis Mountain Limited | Other services | 2016 |
| AF Bradford Ltd | Wholesale & retail | 2022 |
| Affinity Telco Ltd | Wholesale & retail | 2011 |
| Afra Europe Ltd | Wholesale & retail | 2024 |
| AG Collaborative Limited | Professional & scientific | 2023 |
| AGA Driver Training Ltd | Education | 2026 |
| AGC Design & Management Limited | Professional & scientific | 2011 |
| Agenta Ltd. | Other services | 2018 |
| Agilis Digital Limited | Real estate | 2018 |
| Agkm Trading Limited | Transport & logistics | 2019 |
| AGM Marketing Limited | Wholesale & retail | 2021 |
| Agri Fibre Ltd | Professional & scientific | 2024 |
| AH Credit Solutions Ltd | Professional & scientific | 2026 |
| AHA Distribution NE Limited | Administrative & support | 2013 |
| AHR Construction Project Management Services Ltd | Construction | 2017 |
| Aiden James Ltd | Professional & scientific | 2021 |
| Ainsworth Recruitment Ltd | Administrative & support | 2025 |
| Air Data Systems Ltd | Administrative & support | 2019 |
| Airedale Motor Company Limited | Wholesale & retail | 2008 |
| Aireside Properties Management Company Limited | Real estate | 2012 |
| Aireville Terrace Flat Management Company Limited | Hospitality | 1998 |
| Airvision UK Ltd. | Professional & scientific | 2014 |
| AJE Cafe and Studo Limited | Hospitality | 2026 |
| AKA Automotive Leeds Ltd | Wholesale & retail | 2021 |
| AL Progress Limited | Professional & scientific | 2014 |
| AL Property Management Limited | Real estate | 2014 |
| Alan Gowans Orthodontics Limited | Health & social care | 2008 |
| Alan Reynolds Associates Limited | Professional & scientific | 2002 |
| Albakhit Investments Limited | Real estate | 2023 |