| JSB Forensic Practice Ltd | Health & social care | 2011 |
| JSB Property Sourcing Limited | Real estate | 2025 |
| JST Motor Group Ltd | Wholesale & retail | 2023 |
| JTT Services Ltd | Construction | 2022 |
| Jtws Fibres Limited | Wholesale & retail | 2013 |
| Jubilee Management Services Ltd | Households | 2025 |
| Jude's Fisheries Ltd | Hospitality | 2024 |
| Jump Property Ltd | Real estate | 2014 |
| Junior Jeeps UK Ltd | Wholesale & retail | 2019 |
| Junoon Cafe 131 Limited | Hospitality | 2025 |
| Just 4 Paws Ltd | Wholesale & retail | 2007 |
| Just Sauce Ltd | Hospitality | 2025 |
| Jwns Ltd | Information & communication | 2025 |
| JZ Hear Care Solutions Limited | Administrative & support | 2019 |
| K & S Consulting Ltd | Professional & scientific | 2022 |
| K B Properties (1999) Ltd | Extraterritorial | 2004 |
| K Francis Consulting Ltd | Professional & scientific | 2026 |
| K R Martin Electrical Limited | Construction | 2017 |
| K R Martin Ltd | Construction | 2007 |
| K&Co Events Ltd | Arts & recreation | 2019 |
| K&H Ventures Limited | Real estate | 2019 |
| K.M. International Security Systems Limited | | 1987 |
| K1YNX Holding Ltd | Hospitality | 2026 |
| K2 North Limited | Hospitality | 2013 |
| Kadel Engineering Limited | Manufacturing | 1974 |
| KAH Electrical Solutions Limited | Professional & scientific | 2016 |
| KAL Meegan Ltd | Hospitality | 2019 |
| Kamarino Limited | Wholesale & retail | 2016 |
| Kamil Takeaway Limited | Hospitality | 2025 |
| Kamy Ltd | Construction | 2022 |
| Kanga Sports Limited | Education | 2016 |
| Kanga Swim Ltd | Education | 2023 |
| Karak Cruiser Ltd | Hospitality | 2026 |
| Karen Hird Ltd | Real estate | 2015 |
| Kate Orviss Consulting Limited | Professional & scientific | 2019 |
| Katsservices Limited | Construction | 2021 |
| Kayos Investments Ltd | Real estate | 2021 |
| KBB Bargain Limited | Wholesale & retail | 2024 |
| KBW Keighley Trading Ltd | Other services | 2026 |
| KCM Castings Limited | Manufacturing | 2018 |
| KDF Landscapes Limited | Administrative & support | 2010 |
| Keep IT Cool Limited | Transport & logistics | 2014 |
| Keep IT Kleen Ltd | Administrative & support | 2024 |
| Keep IT Simple Supplies Ltd | Wholesale & retail | 2009 |
| Keighley 608608 Ltd | Transport & logistics | 2026 |
| Keighley 608608 Speedline Arrows Private Hire Limited | Transport & logistics | 2021 |
| Keighley Accident Repair Centre Ltd | Other services | 2024 |
| Keighley and Worth Valley Light Railway Limited | Transport & logistics | 1966 |
| Keighley and Worth Valley Railway Preservation Society Limited | Arts & recreation | 2010 |
| Keighley Association for Women and Children's Centre | Professional & scientific | 2011 |
| Keighley BID C.I.C. | Other services | 2015 |
| Keighley Broking Services Limited | Financial services | 2015 |
| Keighley BUS Museum Trust Limited | Arts & recreation | 1992 |
| Keighley Business Network Ltd | Administrative & support | 2026 |
| Keighley Care Company Ltd | Health & social care | 2017 |
| Keighley Catering Limited | Wholesale & retail | 2022 |
| Keighley Community Fridge at Keighley Central Mosque C.I.C. | Other services | 2025 |
| Keighley Cricket Club Limited | Arts & recreation | 1986 |
| Keighley Crown Delights Ltd | Wholesale & retail | 2021 |
| Keighley Cupping Clinic Ltd | Health & social care | 2025 |
| Keighley Diesels Limited | Wholesale & retail | 1987 |
| Keighley Division Conservative Club Buildings Limited | Construction | 1924 |
| Keighley DIY Ltd | Wholesale & retail | 2023 |
| Keighley Fabrications Ltd | Manufacturing | 2018 |
| Keighley GAS & Electrical Ltd | Wholesale & retail | 2020 |
| Keighley Glazing & Windows Limited | Construction | 2010 |
| Keighley Glazing Ltd | Construction | 2019 |
| Keighley Golf Club Limited | Arts & recreation | 2024 |
| Keighley Healthy Living Network | Health & social care | 2001 |
| Keighley Housing Ltd | Real estate | 2013 |
| Keighley Jeans 2022 Ltd | Wholesale & retail | 2022 |
| Keighley Kickbox Ltd | Arts & recreation | 2025 |
| Keighley Kiddicare Ltd | Education | 1996 |
| Keighley Laboratories,Limited | Professional & scientific | 1920 |
| Keighley Lifts UK Ltd | Construction | 2006 |
| Keighley Local Eats Limited | Hospitality | 2021 |
| Keighley Local Store Limited | Wholesale & retail | 2024 |
| Keighley Machinery Handling Limited | Manufacturing | 1999 |
| Keighley Made CIC | Other services | 2024 |
| Keighley Management Limited | Real estate | 2004 |
| Keighley Management Services Ltd | Real estate | 2023 |
| Keighley Market Carpets Limited | Wholesale & retail | 2024 |
| Keighley Mini Market Ltd | Wholesale & retail | 2023 |
| Keighley MMA Limited | Education | 2024 |
| Keighley MOT and Service Centre Ltd | Wholesale & retail | 2023 |
| Keighley MOT Ltd | Wholesale & retail | 2024 |
| Keighley Plumbing Services Ltd | Construction | 2014 |
| Keighley Pound Plus Ltd | Wholesale & retail | 2023 |
| Keighley Recovery Services Limited | Transport & logistics | 2012 |
| Keighley Store Limited | Wholesale & retail | 2026 |
| Keighley Taekwon-Do CIC | Education | 2024 |
| Keighley Timber & Fencing Limited | Manufacturing | 1998 |
| Keighley Timber (Holdings) Limited | Professional & scientific | 2004 |
| Keighley Timber Limited | Professional & scientific | 2017 |
| Keighley Tree Services Limited | Agriculture & fishing | 2001 |
| Keighley Vaults Ltd | Administrative & support | 2019 |
| Keighley Veneering Solutions Limited | Manufacturing | 2009 |
| Keighley Ventilation (ENG.) Co. Limited | | 1973 |
| Keighley Youth Focus Ltd | Health & social care | 2024 |
| Keith Wilkinson Caravan Repairs Ltd | Manufacturing | 2012 |