| Kerr Hill Building Services Ltd | Construction | 2016 |
| Kerra Health Ltd | Health & social care | 2012 |
| Kerris Spencer Ltd | Manufacturing | 2023 |
| Kerrshandec Holdings Ltd | Financial services | 2023 |
| Kerry Dark (Holdings) Limited | Financial services | 2018 |
| Kerry Foods Limited | Manufacturing | 1991 |
| Kerry Harrison Ltd | Professional & scientific | 2016 |
| Kerry Holdings (U.K.) Limited | Professional & scientific | 1982 |
| Kerry Limited | Professional & scientific | 1998 |
| Kerry Paulson Limited | Administrative & support | 2015 |
| Kerry Savoury Foods Limited | Manufacturing | 1991 |
| Kerry's Fish Bar Ltd | Hospitality | 2025 |
| Kerrypak Ltd | Manufacturing | 1983 |
| Kersland Studios Ltd | Information & communication | 2026 |
| Kersteman Quarter Management Company Limited | Households | 2016 |
| Kertak LP | | 2013 |
| Kervtech Care Services Limited | Health & social care | 2024 |
| Kerwood Bristol Ltd | Hospitality | 2024 |
| Kesc Limited | Construction | 2017 |
| Kesh A-Z Ltd | Wholesale & retail | 2022 |
| Kesheba Evans Limited | Professional & scientific | 2023 |
| Kessbryn Global Services Ltd | Wholesale & retail | 2025 |
| Kestell Lewis & Sons Limited | Construction | 2023 |
| Kestrel Couriers Ltd | Transport & logistics | 2019 |
| Kestrel Land Ltd | Real estate | 2022 |
| Kestrel Telecom Limited | Information & communication | 1997 |
| Kestrels Green Management Company Limited | Households | 1990 |
| Kestyle Ltd | Wholesale & retail | 2018 |
| Ketick Ltd | Wholesale & retail | 2018 |
| Ketka Limited | Manufacturing | 2025 |
| Ketl Limited | Administrative & support | 2001 |
| Ketron LP | | 2012 |
| Kets Quantum Security Ltd | Information & communication | 2016 |
| Kettle of Fish Designs Limited | Manufacturing | 1997 |
| Keubideure Consultancy Limited | Health & social care | 2016 |
| Keurgui Limited | Health & social care | 2026 |
| Kevin Mcgovern Limited | Construction | 2008 |
| Kevin Nugent Web Development Ltd | Information & communication | 2022 |
| Kevin OFF Licence Ltd | Wholesale & retail | 2025 |
| Kevin Woodhouse Limited | Other services | 2017 |
| Kevs IT Ltd | Information & communication | 2022 |
| KEW Management Ltd | Construction | 2025 |
| Kewarash Bitwen Ltd | Wholesale & retail | 2024 |
| Key Architecture Ltd | Professional & scientific | 2009 |
| Key Bright New Quarters Limited | Real estate | 2021 |
| Key Estates Management Ltd | Real estate | 2019 |
| Key Financial Advice Limited | Financial services | 2008 |
| Key Integrated Systems Ltd | Manufacturing | 2007 |
| Key People INT. Ltd | Professional & scientific | 2005 |
| Key Pulse Limited | Professional & scientific | 2005 |
| Key Risk Ltd | Financial services | 2020 |
| Key Software Limited | Wholesale & retail | 2017 |
| Key Transport Consultants Limited | Transport & logistics | 2005 |
| Key West (Holdings) Limited | Professional & scientific | 2014 |
| Key Wholesale Limited | Extraterritorial | 1990 |
| Keyaxis Properties Ltd | Real estate | 2023 |
| Keyban Limited | Hospitality | 2026 |
| Keyboard Smash Ltd | Professional & scientific | 2022 |
| Keybridge Associates Ltd | Real estate | 2003 |
| Keycode Ltd | Information & communication | 2022 |
| Keyflow Plumbing and Heating Ltd | Construction | 2025 |
| Keyhole International Ltd | Administrative & support | 2009 |
| Keyless Holding Limited | Administrative & support | 2023 |
| Keyless Technologies Limited | Administrative & support | 2018 |
| Keymac Packaging Systems Limited | Manufacturing | 2005 |
| Keymailer Ltd. | Information & communication | 2015 |
| Keymaster Bristol Limited | Administrative & support | 2010 |
| Keynest Living Limited | Real estate | 2025 |
| Keynsham & District Dial-A-Ride. | Transport & logistics | 2003 |
| Keynsham Auto Repair Centre Limited | Wholesale & retail | 2025 |
| Keynsham Bathrooms and Hardware Limited | Wholesale & retail | 2011 |
| Keynsham Build Limited | Construction | 2016 |
| Keynsham Cakes Ltd | Manufacturing | 2019 |
| Keynsham Car Rentals Ltd | | 1986 |
| Keynsham Cars Ltd | Other services | 2009 |
| Keynsham Catering Limited | Hospitality | 2015 |
| Keynsham Cleaning Company Limited | Administrative & support | 2017 |
| Keynsham Coffee Company Ltd | Hospitality | 2026 |
| Keynsham Combat Academy Limited | Arts & recreation | 2023 |
| Keynsham Community Fridge Limited | Hospitality | 2019 |
| Keynsham Dental Care Ltd | Health & social care | 2020 |
| Keynsham Electrical Services Limited | Construction | 2015 |
| Keynsham Fish Bar Ltd | Hospitality | 2002 |
| Keynsham GAS & Heating Limited | Construction | 2012 |
| Keynsham Gym Limited | Arts & recreation | 2017 |
| Keynsham Healthcare Limited | Wholesale & retail | 2016 |
| Keynsham Masonic Hall,Limited(The) | Other services | 1939 |
| Keynsham Music Festival Association Limited | Arts & recreation | 2012 |
| Keynsham Orchestra Productions Limited | Arts & recreation | 2017 |
| Keynsham Photo Centre Limited | Wholesale & retail | 2011 |
| Keynsham Properties Limited | Real estate | 2017 |
| Keynsham Property Developments Limited | Construction | 2005 |
| Keynsham Property Management Services Limited | Real estate | 1986 |
| Keynsham RFC Limited | Arts & recreation | 2016 |
| Keynsham Spice Limited | Hospitality | 2023 |
| Keynsham Tandoori Ltd | Extraterritorial | 2015 |
| Keynsham Town Community Football Club Limited | Arts & recreation | 2018 |
| Keynsham Town Community Radio (Ktcr) C.I.C. | Information & communication | 2017 |
| Keynsham YK Limited | Hospitality | 2026 |
| Keyowa Ltd | Information & communication | 2025 |