| 4 Tile Limited | Construction | 1996 |
| 4 Tomorrow Ltd | Real estate | 2022 |
| 4-TRO Ltd | Professional & scientific | 2019 |
| 40 Thorne Road Limited | Households | 2008 |
| 421 Group Limited | Construction | 2021 |
| 44 Fuels Ltd | Water & waste | 2025 |
| 4BRIC Limited | Professional & scientific | 2022 |
| 4D Build Limited | Professional & scientific | 2015 |
| 4D Clean-Up Limited | Administrative & support | 2021 |
| 4DOGGIES Limited | Wholesale & retail | 2016 |
| 4FLYNNS Limited | Real estate | 2017 |
| 4L'S Packing Ltd | Transport & logistics | 1998 |
| 4L'S Products Limited | Transport & logistics | 2005 |
| 4L'S Properties LLP | | 2006 |
| 4LAW4LIFE Limited | Professional & scientific | 2020 |
| 4MOTION Hire Ltd | Administrative & support | 2010 |
| 4UK TM Limited | Construction | 2017 |
| 4YOU2COLLECT Ltd | Financial services | 2023 |
| 5 Keys Letting Ltd | Real estate | 2026 |
| 5 Star Food Distribution Ltd | Wholesale & retail | 2018 |
| 5 Star Property Development Ltd | Real estate | 2024 |
| 53 Engineering Ltd | Professional & scientific | 2014 |
| 5334 Consulting Ltd | Information & communication | 2024 |
| 57 Media Ltd | Professional & scientific | 2020 |
| 57 Renewables Ltd | Construction | 2023 |
| 5:01 Recruitment Ltd | Professional & scientific | 2023 |
| 5D Engineering Consultants Limited | Professional & scientific | 2021 |
| 5S Import Ltd | Wholesale & retail | 2018 |
| 5WONDERS.CO.UK Ltd | Hospitality | 2024 |
| 6 FT Ltd | Professional & scientific | 2025 |
| 679 Communications Ltd | Information & communication | 2015 |
| 6AM Systems Ltd | Arts & recreation | 2025 |
| 7 Degrees Media Limited | Information & communication | 2026 |
| 7 Hills Brewery Limited | Manufacturing | 2020 |
| 7 Yards AG Ltd | Agriculture & fishing | 2024 |
| 704 Consultancy Limited | Information & communication | 2023 |
| 711SPORTS Ltd | Wholesale & retail | 2024 |
| 731 Energy Consultancy Ltd | Construction | 2023 |
| 76/78 Thorne Road Property Associates Limited | Households | 2020 |
| 77 Expedition Ltd | Transport & logistics | 2019 |
| 777 Hills Limited | Information & communication | 2024 |
| 77KRZ Prodrive Limited | Transport & logistics | 2026 |
| 780 Coaching Ltd | Education | 2012 |
| 804 Cabs Doncaster Ltd | Transport & logistics | 2025 |
| 8183 Properties Limited | Real estate | 2026 |
| 83SLATE Ltd | Arts & recreation | 2023 |
| 8A Energy Limited | Professional & scientific | 2022 |
| 8KARMA Ltd | Transport & logistics | 2023 |
| 8MM Productions Ltd | Arts & recreation | 2021 |
| 8NN Ltd | Real estate | 2023 |
| 90 Minute Music- Health and Development C.I.C. | Education | 2024 |
| 96 Music Ltd | Information & communication | 2018 |
| 9GREENDOOR Consulting Ltd | Professional & scientific | 2018 |
| @One CUT Above the Rest Ltd | Administrative & support | 2022 |
| A & B Properties Limited | Real estate | 2001 |
| A & B Taverns & Inns Ltd | Hospitality | 2023 |
| A & D Snaith Groundworks Ltd | Construction | 2021 |
| A & E Sayers Limited | Arts & recreation | 1990 |
| A & H Fencing Services Ltd | Construction | 2021 |
| A & H Freight Consultants Ltd | Transport & logistics | 2013 |
| A & J Properties ( Doncaster) Ltd | Households | 2025 |
| A & K Motorfix Limited | Wholesale & retail | 2015 |
| A & K Walks Limited | Real estate | 2021 |
| A & L Bedding Supplies Ltd | Wholesale & retail | 2026 |
| A & M Property Services Ltd | Construction | 2022 |
| A & N Autos Ltd | Wholesale & retail | 2021 |
| A & P Plumbing and Heating (UK) Ltd | Wholesale & retail | 2008 |
| A a Machin Electrical Services Ltd | Construction | 2016 |
| A a RON (NW) Ltd | Professional & scientific | 2023 |
| A and C Engineering (Yorkshire) Limited | Construction | 2006 |
| A B C Design & Print Limited | Manufacturing | 2003 |
| A B Hardy Property Limited | Real estate | 2026 |
| A B Logistics Limited | Wholesale & retail | 1997 |
| A B Power Services Ltd | Construction | 2018 |
| A Bland Butchers Ltd | Wholesale & retail | 2025 |
| A C Parker Limited | Construction | 2019 |
| A C Safety Engineering Ltd | Manufacturing | 2015 |
| A Crafty Yorkshireman Limited | Wholesale & retail | 2023 |
| A D Bookkeeping & Payroll Services Ltd | Professional & scientific | 2017 |
| A D R Homes Limited | Construction | 2002 |
| A E Fleming Ltd | Professional & scientific | 2015 |
| A E Liquid Solutions Limited | Transport & logistics | 2012 |
| A F Interiors (Yorkshire) Limited | Manufacturing | 2017 |
| A Fowler Property Services Limited | Construction | 2020 |
| A Fowler Wholesale Ltd | Wholesale & retail | 2024 |
| A G Clark Build Ltd | Construction | 2012 |
| A Gallery of One's Own Limited | Arts & recreation | 2021 |
| A Gold Standard AGA Service Ltd | Other services | 2018 |
| A Gollick Brickwork Ltd | Construction | 2025 |
| A H Collectables Ltd | Wholesale & retail | 2018 |
| A H Dentistry Ltd | Health & social care | 2018 |
| A Hopwood TM Ltd | Public administration | 2024 |
| A J Drury Haulage Limited | Transport & logistics | 2006 |
| A J E Plumbing and Building Ltd | Construction | 2022 |
| A J Investment Partners Limited | Real estate | 2019 |
| A J Marr Plumbing & Heating Ltd | Construction | 2025 |
| A J N Properties ( Doncaster) Ltd | Real estate | 2025 |
| A J Roberts Surveying Limited | Professional & scientific | 2020 |
| A J Tyres Ltd | Manufacturing | 2013 |
| A Jackson Interiors Limited | Manufacturing | 2018 |