| Logic Software Design Limited | Information & communication | 2002 |
| Logica Property Limited | Real estate | 2021 |
| Logical Financial Planning Limited | Financial services | 2008 |
| Logical Solutions (Wales) Limited | Information & communication | 2005 |
| Logicaura Ltd | Information & communication | 2024 |
| Logicdialog Ltd | Information & communication | 2017 |
| Logicerasystem Ltd | Information & communication | 2025 |
| Logicom Trading Ltd | Wholesale & retail | 2020 |
| Logicount Ltd | Information & communication | 2025 |
| Logics Consults Ltd | Information & communication | 2019 |
| Loginta Global PC | | 2018 |
| Logistic Drive Agent Ltd | Wholesale & retail | 2025 |
| Logistic Support Services Ltd | Wholesale & retail | 2019 |
| Logistics Design Consultants Ltd | Professional & scientific | 2022 |
| Logitecs Ltd | Information & communication | 2015 |
| Logos Lounge | Health & social care | 2020 |
| Logotek Investments Limited | Extraterritorial | 2011 |
| Logotek Promotional Merchandise Limited | Wholesale & retail | 2010 |
| Logowin Ltd | Wholesale & retail | 2025 |
| LOGS3LAWS Ltd | Wholesale & retail | 2017 |
| Logue Property Development Limited | Real estate | 2023 |
| Logwood Investments Limited | Agriculture & fishing | 2014 |
| Loisto Ltd | Administrative & support | 2016 |
| Lojiplatform Ltd | Information & communication | 2024 |
| Lojoma Limited | Financial services | 2022 |
| LOK Developments 08 Limited | Construction | 2019 |
| Lokalize Ltd | Professional & scientific | 2024 |
| Lokationco Ltd | Arts & recreation | 2019 |
| Lokb Holdings Ltd | Financial services | 2023 |
| Loki Enterprises Limited | Wholesale & retail | 2024 |
| Lokinator Ltd | Administrative & support | 2016 |
| Lokoti Services Ltd | Administrative & support | 2021 |
| Lola Looks Ltd | Wholesale & retail | 2025 |
| Lolera Services Ltd | Administrative & support | 2024 |
| Lolita Heels Ltd | Wholesale & retail | 2025 |
| Lolkata Services Ltd | Administrative & support | 2024 |
| Lollies Cleaning Ltd | Administrative & support | 2026 |
| Lolly Labs Ltd | Professional & scientific | 2019 |
| Lolo Collections Limited | Wholesale & retail | 2022 |
| Lolo Limited | Real estate | 2024 |
| Lomaks Property Ltd | Construction | 2017 |
| Lomas Aire Ltd | Households | 2012 |
| Lommerse Oral Surgery Ltd | Health & social care | 2019 |
| Lona Financial Ltd | Financial services | 2022 |
| Lona Grill House Limited | Hospitality | 2014 |
| Lona Property 2 Ltd | Real estate | 2023 |
| Lona Property Ltd | Real estate | 2019 |
| Lonas Media Ltd | Information & communication | 2021 |
| Lonburg Ltd | Transport & logistics | 2016 |
| Londex Ltd | Information & communication | 2018 |
| Londexa London Ltd | Wholesale & retail | 2026 |
| Londinium Piccadilly Ltd | Hospitality | 2011 |
| Londoform L.P. | | 2017 |
| London & Kent Best Kitchen & Bathroom Solutions Ltd | Construction | 2014 |
| London & Middlesex Property Limited | Real estate | 2007 |
| London 1ST Decoration Ltd | Construction | 2020 |
| London Accountancy Digital Service Ltd | Professional & scientific | 2011 |
| London American Football Academy Ltd | Education | 2025 |
| London and Essex Surveying Limited | Professional & scientific | 2025 |
| London Apparelco Limited | Manufacturing | 2018 |
| London Aqar Ltd | Real estate | 2025 |
| London Auto Parts Centre Ltd | Wholesale & retail | 2018 |
| London Basket Ltd | Wholesale & retail | 2026 |
| London Beauty LB Ltd | Wholesale & retail | 2021 |
| London Beauty Salons Limited | Other services | 2018 |
| London Board of Aesthetic Medicine Ltd | Education | 2023 |
| London Business Development for Training Ltd | Public administration | 2020 |
| London Capital Asset Management Ltd | Real estate | 2023 |
| London Capital Computer College Limited | Education | 1996 |
| London Chimney Liners Ltd | Professional & scientific | 2011 |
| London College of Excellence Limited | Education | 2015 |
| London Commercial Refits Ltd | Construction | 2019 |
| London Concord Ltd | Administrative & support | 2009 |
| London Consultancy and Trading Co Ltd | Professional & scientific | 2016 |
| London Corporate Academy Ltd | Professional & scientific | 2017 |
| London Corporate Relocation Ltd | Other services | 2014 |
| London Cribs International Ltd | Real estate | 2018 |
| London Damp Proofing Limited | Construction | 2020 |
| London Damp Proofing Surveyors Ltd | Construction | 2025 |
| London Diez Ltd | Financial services | 2021 |
| London Domestic Cleaning Ltd | Administrative & support | 2019 |
| London Dupre Ltd | Manufacturing | 2020 |
| London Electricity Ltd | Energy | 2017 |
| London Elite Plumbers Ltd | Construction | 2014 |
| London Energy Group Ltd | Construction | 2017 |
| London Excel Ltd | Real estate | 2018 |
| London Executive Travel Ltd | Transport & logistics | 2018 |
| London Health and Beauty Centre Ltd | Other services | 2016 |
| London High Sport Academy Limited | Wholesale & retail | 2025 |
| London ICT Limited | Information & communication | 2020 |
| London International College for Training Ltd | Education | 2025 |
| London International Trading Limited | Arts & recreation | 2017 |
| London Legends Events Limited | Administrative & support | 2018 |
| London Locks and Maintenance Limited | Construction | 2017 |
| London Lubricants Ltd | Wholesale & retail | 2016 |
| London Luxuries Ltd | Wholesale & retail | 2019 |
| London Maintenance Call OUT Ltd | Construction | 2024 |
| London Media Agecy Ltd | Wholesale & retail | 2025 |
| London Megastore Limited | Wholesale & retail | 2024 |
| London Minibus Limited | Transport & logistics | 2017 |