| Kingston Flats (Cheltenham) Limited | Real estate | 1981 |
| Kingston Marine Limited | Administrative & support | 2025 |
| Kington Youth Hub Community Interest Company | Health & social care | 2022 |
| Kinnaird Holdings Limited | Professional & scientific | 1989 |
| Kinnersley Castle CIC | Arts & recreation | 2025 |
| Kinnersley Software Limited | Information & communication | 2004 |
| Kirk Property Development Ltd | Construction | 2020 |
| Kirk Property Holdings Limited | Financial services | 2021 |
| Kirpa Holdings Ltd | Financial services | 2024 |
| KITM8 Limited | Administrative & support | 2025 |
| Kittys Lane Ltd | Real estate | 2019 |
| KJ Properties Hereford Ltd | Real estate | 2021 |
| KJB Recruitment Ltd | Administrative & support | 2018 |
| KK Facades Limited | Construction | 2011 |
| Klar Property Limited | Construction | 2024 |
| KLD Property Investments Limited | Real estate | 2022 |
| Klip Automatic Ltd | Manufacturing | 2020 |
| Klug Werk Limited | Information & communication | 2026 |
| KM Corper Casas Ltd | Real estate | 2023 |
| KM Corper Properties Ltd | Real estate | 2019 |
| KM Fibre Force Ltd | Manufacturing | 2019 |
| KMC Build (Hereford) Limited | Construction | 2020 |
| KMC Development (Hereford) Limited | Construction | 2020 |
| KMC Electrical (Hereford) Limited | Construction | 2021 |
| Knapp Enterprises Ltd | Real estate | 2025 |
| Knapton Limited | Agriculture & fishing | 2015 |
| Kneepro Guard Ltd | Wholesale & retail | 2022 |
| Knighthawk Estates Ltd | Real estate | 2020 |
| Knights Court (Central Avenue) Management Company Limited | Households | 2018 |
| Knightsbridge CCS Limited | Other services | 2006 |
| Knott Hall Helpringham Freehold Limited | Real estate | 2019 |
| Knowbit Ltd | Real estate | 2002 |
| Kobe Properties Ltd | Real estate | 2024 |
| Koda Architects Ltd | Professional & scientific | 2019 |
| Koda Consultancy Ltd | Administrative & support | 2023 |
| Koda Developments Ltd | Real estate | 2022 |
| Koev Transport Limited | Transport & logistics | 2022 |
| Koios Associates Limited | Professional & scientific | 2022 |
| Kombucha Holdings Ltd | Professional & scientific | 2024 |
| Kompas Health Ltd | Health & social care | 2023 |
| Kosei Investments Ltd | Real estate | 2023 |
| Kpya Community Interest Company | Arts & recreation | 2022 |
| Kraven Enterprises Ltd | Manufacturing | 2012 |
| Krowdos Ltd | Real estate | 2015 |
| KS Contracting Solutions Limited | Manufacturing | 2025 |
| KTD Gifts Ltd | Wholesale & retail | 2026 |
| Kubush Supper Store Ltd | Wholesale & retail | 2024 |
| Kukri Homes Ltd | Households | 2023 |
| Kuma Limited | Manufacturing | 2013 |
| Kunnan Ltd | Manufacturing | 2022 |
| Kurbed Coatings Limited | Wholesale & retail | 2025 |
| Kutavar Limited | Wholesale & retail | 2020 |
| KVD Enterprises Ltd | Hospitality | 2025 |
| KW Barber Ltd | Other services | 2026 |
| Kyle Balmer Digital Marketing Ltd. | Education | 2014 |
| Kynoch Consultancy Ltd | Professional & scientific | 2020 |
| Kynoch Properties Limited | Real estate | 2017 |
| Kyrle House Practice Limited | Real estate | 2020 |
| L F Nimmo Limited | Hospitality | 2026 |
| L Jowitt Auto Repairs Limited | Wholesale & retail | 2012 |
| L S Construction and Renovations Ltd | Construction | 2024 |
| L Small Limited | Professional & scientific | 2013 |
| L T Security Limited | Administrative & support | 2013 |
| L&C Construction Services Ltd | Construction | 2025 |
| L&F Contractors Limited | Administrative & support | 2016 |
| L'Ecole DES Amis Restaurant Ltd | Hospitality | 2023 |
| L'Escargot Anglais Ltd | Wholesale & retail | 2015 |
| L.D. Preece & SON Builders Ltd. | Construction | 2005 |
| L.D.A. Meats Limited | Wholesale & retail | 1993 |
| L.J.M. Associates Ltd | Professional & scientific | 2003 |
| L.T. Baynham Limited | Wholesale & retail | 1983 |
| LA Mara Group Ltd | Manufacturing | 2023 |
| LA Therapy Ltd | Health & social care | 2015 |
| Labra-Adore Ltd | Information & communication | 2025 |
| Lachmann Consulting Limited | Professional & scientific | 2023 |
| Lael Healthcare Limited | Health & social care | 2026 |
| Lake View Nursery Ltd | Education | 2011 |
| Lakhpur Properties Ltd | Real estate | 2025 |
| Lally Landscapes Torbay Ltd | Administrative & support | 2019 |
| Lambe Corner LLP | | 2016 |
| Lambe Corner Services Ltd | Professional & scientific | 2014 |
| Lambourne Gardens (Breinton LEE) Management Limited | Hospitality | 2002 |
| Lamorak Plant Limited | Administrative & support | 2024 |
| Land Rover Owners Spares Department Limited | Professional & scientific | 2017 |
| Lander Sweepers Ltd | Construction | 2006 |
| Landstone Hereford Ltd | Construction | 2025 |
| Langsun Limited | Hospitality | 1927 |
| Language Professionals Limited | Education | 2023 |
| Lansbury Tech Services Limited | Information & communication | 2016 |
| LAP Property Limited | Real estate | 2016 |
| Larajay Limited | Extraterritorial | 2020 |
| Larkfield Consultants Ltd | Professional & scientific | 2023 |
| Laser Hereford Limited | Other services | 2023 |
| Lasso Web Ltd | Information & communication | 2023 |
| Lateef Shogbeni Services Limited | Financial services | 2013 |
| LATITUDE9 Ltd | Administrative & support | 2026 |
| Lattice Construction Ltd | Construction | 2022 |
| Launch My Drink Limited | Manufacturing | 2026 |
| Laundry Chute Solutions Limited | Manufacturing | 2011 |
| Lava Property Limited | Real estate | 2017 |