| Jessica Hill Design Ltd | Administrative & support | 2025 |
| Jestilo Logistic Ltd | Transport & logistics | 2023 |
| Jestilo Ltd | Wholesale & retail | 2019 |
| Jestiloco Ltd | Wholesale & retail | 2025 |
| JET Consultancy Limited | Professional & scientific | 2025 |
| Jewitec Ltd | Wholesale & retail | 2026 |
| JF Salons Limited | Other services | 2015 |
| Jigsaw Treasury Limited | Financial services | 2020 |
| Jimmy Jarvis Trade Installations Ltd | Construction | 2020 |
| JJ Access Solutions Ltd | Construction | 2025 |
| JJD Property Group Limited | Real estate | 2023 |
| JK Construction Brickwork Ltd | Construction | 2022 |
| JLE Corporates Ltd | Real estate | 2005 |
| JLM Accounting Limited | Professional & scientific | 2013 |
| JLR Property Rentals Ltd | Real estate | 2024 |
| JM Office Stationery Limited | Wholesale & retail | 1988 |
| Jmev Cleaning Services Ltd | Administrative & support | 2026 |
| Jmlm Property Rentals Limited | Real estate | 2025 |
| Jmoxon Enterprise Ltd | Hospitality | 2025 |
| JO Rymell Aesthetics Ltd | Other services | 2024 |
| Jochrismaz Ltd | Health & social care | 2021 |
| John Dodd Property (Mossley) Limited | Hospitality | 2021 |
| John Rhodes Cleaning Services Ltd | Administrative & support | 2023 |
| John Whibley Ltd. | Administrative & support | 1999 |
| Johnjoe's Ltd | Construction | 2023 |
| Jojo Aesthetics Training Academy Ltd | Health & social care | 2021 |
| Jonathan's Retail Ltd | Wholesale & retail | 2020 |
| Jordans Detailing World Ltd | Wholesale & retail | 2020 |
| Jorvexis Constructions Ltd | Construction | 2026 |
| Jose Medical Ltd | Health & social care | 2012 |
| Joti Associates Ltd | Construction | 2018 |
| Joyce & Co. Botanics Ltd | Manufacturing | 2026 |
| Joyjoison Ltd | Health & social care | 2023 |
| JP Geotechnical Limited | Professional & scientific | 2012 |
| JPD and Co Group Limited | Financial services | 2019 |
| JPD Engineering International Limited | Manufacturing | 2015 |
| JPD Estates Limited | Real estate | 2019 |
| Jpholt Coaching Limited | Education | 2023 |
| JRJ Preston Ltd | Construction | 2018 |
| JS Malik Limited | Health & social care | 2012 |
| JS Plumbing & Heating Ltd | Construction | 2023 |
| Jstarco Ltd | Wholesale & retail | 2023 |
| JT Excavations Ltd | Construction | 2022 |
| Jtlh Ltd | Wholesale & retail | 2022 |
| Just Fashion Ltd | Wholesale & retail | 2020 |
| JUST4MARINE Ltd | Manufacturing | 2015 |
| K & L Sparkle Ltd | Administrative & support | 2018 |
| K Door Aluminium Ltd | Manufacturing | 2011 |
| K J Andrew Holdings Limited | Financial services | 2025 |
| K L Dine Ltd | Wholesale & retail | 2026 |
| K R Wines & Beers Ltd | Wholesale & retail | 2015 |
| K.Hampsonaesthetics Limited | Health & social care | 2026 |
| K9FORCE Limited | Administrative & support | 2019 |
| K9S & Felines Limited | Other services | 2023 |
| KAB Media Ltd | Professional & scientific | 2018 |
| Kadama Trading Ltd | Wholesale & retail | 2019 |
| Kaiq Autos Ltd | Wholesale & retail | 2026 |
| Kaka Car Repairs Limited | Wholesale & retail | 2023 |
| Kakar Money Exchange Limited | Financial services | 2025 |
| Kalima World Ltd | Information & communication | 2026 |
| Kamfor Ltd | Transport & logistics | 2024 |
| Kamz Autocare Ltd | Wholesale & retail | 2025 |
| Kara Makeup Ltd | Other services | 2020 |
| Karimi Cosmetics Limited | Health & social care | 2022 |
| Karimi Properties Ltd | Real estate | 2015 |
| Kate Omeika Ltd | Health & social care | 2018 |
| Kathryn L Wilkinson Wealth Management Limited | Professional & scientific | 2012 |
| Katnat Limited | Wholesale & retail | 2025 |
| Kayjay Care Services Limited | Health & social care | 2015 |
| Kayloe Ltd. | Health & social care | 2017 |
| KC Care Group Ltd | Health & social care | 2026 |
| KCT Property Ltd | Real estate | 2026 |
| KD Roofing Services Northwest Ltd | Construction | 2014 |
| Keepitusable Ltd | Professional & scientific | 2022 |
| KEL Europe Ltd | Wholesale & retail | 2026 |
| Kempworth Limited | Education | 2017 |
| Kennedy Properties & Stays Ltd | Hospitality | 2026 |
| Kennel Feeders Ltd | Wholesale & retail | 2024 |
| Kenningham Limited | Wholesale & retail | 2024 |
| Kenyon Thompson Limited | Real estate | 1997 |
| Kepidy Ltd | Wholesale & retail | 2025 |
| Kerrie Lynch Aesthetics Ltd | Health & social care | 2016 |
| Keverlow Farm Ltd | Education | 2026 |
| Key Homes (NW) Ltd | Real estate | 2022 |
| Keys Property Developments Ltd | Real estate | 2024 |
| KH Hair & Beauty Ltd | Other services | 2022 |
| Khairkhwah Services Ltd | Health & social care | 2021 |
| Khan Security Services Ltd | Administrative & support | 2017 |
| Khapepe Limited | Health & social care | 2025 |
| Khepri Zher Limited | Wholesale & retail | 2025 |
| Khhb Ltd | Other services | 2022 |
| Khunsol Care Limited | Health & social care | 2022 |
| KI & CC Ltd | Hospitality | 2018 |
| Kickfix Ltd | Professional & scientific | 2026 |
| Kicking Back Media Ltd | Information & communication | 2026 |
| Kids Childcare Hazel Grove Ltd | Other services | 2013 |
| Kidz Hideout Limited | Health & social care | 2024 |
| Kinder Giggles Limited | Health & social care | 2016 |
| Kindred Legacy Ltd | Information & communication | 2026 |
| Kirkstone Developments Ltd | Construction | 2018 |