| Kalimba Projects & Investments Ltd | Professional & scientific | 2019 |
| Kaluki Worldwide Ltd | Arts & recreation | 2018 |
| Kang & LI Ltd | Hospitality | 2023 |
| Karphe Limited | Information & communication | 2012 |
| Katrina Bryant Limited | Agriculture & fishing | 2022 |
| KC Rigging Ltd | Administrative & support | 2023 |
| KD Vehicle FX Ltd | Information & communication | 2020 |
| Keen Property Investments Ltd | Real estate | 2018 |
| Keep IT Simple (Brompton) Ltd | Construction | 2023 |
| Keep Panning Ltd | Information & communication | 2022 |
| Kellbert Ltd | Real estate | 2021 |
| Keller Design Centre (Lytham) Ltd | Wholesale & retail | 2009 |
| Kelly’S News Ansdell and Fairhaven Ltd | Wholesale & retail | 2025 |
| Kelso Lettings LLP | | 2018 |
| Kelso Property Ltd | Construction | 2004 |
| KEN Williamson Consultancy Services Ltd | Professional & scientific | 2019 |
| Kentia Street Food Ltd | Hospitality | 2023 |
| Kernfarm UK Limited | Wholesale & retail | 2015 |
| Kerose Ltd | Other services | 2022 |
| Kerr Logan Ltd | Arts & recreation | 2016 |
| Kerry a Thomas Ltd | Real estate | 2018 |
| Key Card Co (SAS) Ltd | Wholesale & retail | 2019 |
| Key Motor Components Ltd | Wholesale & retail | 2015 |
| Keystone Ethical Consulting Limited | Professional & scientific | 2025 |
| Khemist Hub Ltd | Construction | 2023 |
| Killer Crab MEN LLP | | 2021 |
| Kilnsway Publications Ltd | Professional & scientific | 2024 |
| Kilnsway Publishing Limited | Professional & scientific | 2018 |
| Kin'Folk Community Interest Company | Other services | 2019 |
| Kinetics Personal Training Ltd | Arts & recreation | 2006 |
| Kingsway Galleries Limited | Extraterritorial | 2002 |
| Kirkham Motor Storage Limited | Transport & logistics | 2020 |
| Kitchen Restaurants and Bars Limited | Hospitality | 2013 |
| Kiwivine Limited | Information & communication | 2008 |
| Kklc Limited | Professional & scientific | 2015 |
| KLP Design Solutions Ltd | Information & communication | 2025 |
| KM Assets Ltd | Real estate | 2025 |
| KMM Star Ltd | Professional & scientific | 2024 |
| Knee Tracker Limited | Health & social care | 2015 |
| Knowmyname Ltd | Professional & scientific | 2024 |
| Kohd Group Limited | Information & communication | 2022 |
| Konkr Limited | Information & communication | 2020 |
| Kore International Limited | Health & social care | 2015 |
| KP7 Ltd | Education | 2025 |
| Kpdl Ltd | Construction | 2018 |
| KR Newco Limited | Real estate | 2017 |
| KS & 6 Limited | Other services | 2015 |
| Kudos IT Services Ltd | Information & communication | 2013 |
| KZR 100 Ltd | Hospitality | 2021 |
| L.J Michaels Ltd | Extraterritorial | 2025 |
| Lagom Properties and Interiors Ltd | Real estate | 2025 |
| Lakeland Verandahs Limited | Construction | 2008 |
| Lakeview Rest Homes Limited | Health & social care | 1997 |
| Lancashire Asset Finance Ltd | Administrative & support | 2011 |
| Lancashire Care Group Ltd | Health & social care | 2023 |
| Lancashire Event Hire Ltd | Hospitality | 2025 |
| Lancashire Food Consultants Ltd | Hospitality | 2020 |
| Lancashire Living Ltd | Real estate | 2019 |
| Lancashire Pressings Ltd | Manufacturing | 2026 |
| Lancashire Pure Honey Limited | Agriculture & fishing | 2025 |
| Landing Legs UK Limited | Professional & scientific | 2006 |
| Langdale Residents Management Ltd | Households | 2020 |
| Langley 4 Leisure Limited | Hospitality | 2023 |
| LANGUAGE4LIFE School Ltd | Education | 2013 |
| Laser Game (Glasgow) Limited | Arts & recreation | 2007 |
| Lateral Technology Limited | Information & communication | 2009 |
| Laugh Live Love CIC | Other services | 2018 |
| Laura Johnson Consultancy Ltd | Professional & scientific | 2021 |
| Lawdio Ltd | Professional & scientific | 2023 |
| Lawnsdale Country Park Ltd | Hospitality | 2015 |
| Lawrence Manor Property Management Limited | Households | 1996 |
| Lawson Legal Services Ltd | Professional & scientific | 2021 |
| Lazza Consulting Ltd | Information & communication | 2010 |
| LBL Developments Ltd | Construction | 2023 |
| LC Jolley Limited | Households | 2017 |
| LC Towbars Ltd | Wholesale & retail | 2015 |
| Lcmt Investments Ltd | Households | 2018 |
| Lcol Engineering Ltd | Manufacturing | 2024 |
| LE Marco Developments Ltd | Construction | 2020 |
| LE Marco Plastering Ltd | Construction | 2022 |
| LEA Cottage Management Ltd | Real estate | 2003 |
| Lead Turn Aviation Ltd | Professional & scientific | 2022 |
| Leafy Lytham Limited | Administrative & support | 2020 |
| Leaguelight Ltd | Information & communication | 2020 |
| Learning Mind Psychology Ltd | Health & social care | 2025 |
| Leeart Errand & Care Services Limited | Health & social care | 2026 |
| Legtec Limited | Education | 2007 |
| Leisure and Storage Limited | Arts & recreation | 2015 |
| Leoluna Ltd | Administrative & support | 2024 |
| Lettheadventurebegin Ltd | Hospitality | 2016 |
| Letting Consultants Ltd | Real estate | 2022 |
| Leyland Town Team CIC | Other services | 2017 |
| LFB Commercial Services Ltd | Professional & scientific | 2025 |
| LFS Property Limited | Real estate | 2026 |
| Libertas Holdings Limited | Administrative & support | 2015 |
| Library Mews (Blackpool) Management Company Limited | Households | 1986 |
| Life Celebrant Speaker Ltd | Other services | 2022 |
| Life Change Property Ltd | Households | 2025 |
| Lifestyles of Lytham Limited | Wholesale & retail | 2023 |
| Liftech Ltd | Construction | 2006 |