| Homeskld Ltd | Wholesale & retail | 2022 |
| Honell Limited | Administrative & support | 2019 |
| Honey Contracts Ltd | Professional & scientific | 2018 |
| Honeyshade Limited | Public administration | 2022 |
| Hoque Taxi & Delivery Services Ltd | Transport & logistics | 2025 |
| House of Shopping Ltd | Wholesale & retail | 2019 |
| Housetomotive Ltd | Information & communication | 2022 |
| HPJ Eagle Properties Ltd | Real estate | 2025 |
| HS Tire N Repair Limited | Wholesale & retail | 2024 |
| Httbc Consulting Ltd | Professional & scientific | 2023 |
| Hunter & Sons Autoworks Ltd | Wholesale & retail | 2020 |
| Hyden (UK) Limited | Administrative & support | 2009 |
| Hydralux Ltd | Administrative & support | 2024 |
| Hygea BLU Ltd | Professional & scientific | 2018 |
| I-Solidate Ltd | Information & communication | 2011 |
| Ianiko Ltd | Construction | 2025 |
| IB Clinical Physiologist Limited | Health & social care | 2017 |
| Ibro Consult Limited | Information & communication | 2020 |
| Iconic Dwellings Ltd | Real estate | 2024 |
| Ifmedical Ltd | Health & social care | 2021 |
| IG Express Limited | Construction | 2014 |
| Ignition Care Ltd | Health & social care | 2015 |
| Ignition Motors Ltd | Wholesale & retail | 2019 |
| Imoni Auto Deals & Services Limited | Wholesale & retail | 2026 |
| Inatgs & Co Ltd | Wholesale & retail | 2019 |
| Inenge Limited Company Ltd | Manufacturing | 2019 |
| Infinity Freedom Properties Ltd | Real estate | 2020 |
| Infomesh Limited | Information & communication | 2012 |
| Interjourney Ltd | Transport & logistics | 2026 |
| International Health Organisation Ltd | Health & social care | 2015 |
| International Organization for Standardization of Maritime Ports | Professional & scientific | 2012 |
| International Society for Surveyors Consultants & Auditors | Other services | 2010 |
| Invisifix Repairs Ltd | Construction | 2026 |
| IRI Logistics Ltd | Transport & logistics | 2019 |
| ISC03 Ltd | Information & communication | 2021 |
| ISIXTY15 Limited | Professional & scientific | 2017 |
| Isle for Dogs Boutique Ltd | Wholesale & retail | 2022 |
| Itam Journey Consulting Ltd | Information & communication | 2025 |
| ITO London Ltd | Wholesale & retail | 2014 |
| Itwaze Limited | Wholesale & retail | 2019 |
| J C Fluid Power Ltd | Manufacturing | 2011 |
| J&S Beauty Connect Ltd | Other services | 2019 |
| J&S Engineering Services Ltd | Administrative & support | 2017 |
| J-Nissi London Ltd | Wholesale & retail | 2020 |
| J.P.L Capital Ltd | Financial services | 2022 |
| J.P.L Global Holdings Ltd | Professional & scientific | 2024 |
| Jacet Logistics Ltd | Transport & logistics | 2024 |
| Jackhier Ltd | Wholesale & retail | 2020 |
| Jadeclean Limited | Administrative & support | 2025 |
| Jamadia Limited | Construction | 2022 |
| Jambless Drylining Limited | Construction | 2017 |
| James Vivian Limited | Arts & recreation | 2014 |
| Javna Limited | Administrative & support | 2024 |
| JAY & JO Consultancy Limited | Professional & scientific | 2023 |
| Jayboogis Limited | Hospitality | 2020 |
| JBT Corporations Ltd | Transport & logistics | 2022 |
| Jenntel UK Limited | Health & social care | 2009 |
| Jhonhaulage Limited | Transport & logistics | 2025 |
| JLS Property Reworks Ltd | Real estate | 2026 |
| Jmkcreations Limited | Other services | 2014 |
| JNG Career Hub Ltd | Administrative & support | 2025 |
| JNG Property Solutions Ltd | Real estate | 2025 |
| Jocho Ltd | Construction | 2014 |
| John Transport Ltd | Transport & logistics | 2025 |
| Josh Business Managers Limited | Hospitality | 2015 |
| Joy to the World Limited | Professional & scientific | 2019 |
| Joyhr Limited | Administrative & support | 2019 |
| JP Speed Limited | Construction | 2017 |
| Jscollective Ltd | Wholesale & retail | 2025 |
| Jsr.Ringu Limited | Health & social care | 2022 |
| JSV Solutions Limited | Construction | 2019 |
| JT Classic Solutions Limited | Health & social care | 2015 |
| Jusrade Care Ltd | Health & social care | 2014 |
| Justlin Electricals Limited | Construction | 2017 |
| K&B Design Ltd | Arts & recreation | 2021 |
| K.Serg Ltd | Transport & logistics | 2015 |
| K2M Ventures Limited | Construction | 2022 |
| Kala 75 Ltd | Transport & logistics | 2021 |
| Kara Seafoods and Catering Ltd | Wholesale & retail | 2025 |
| Karaoglan Ltd | Hospitality | 2019 |
| Karayel Food Limited | Hospitality | 2025 |
| KAS Scaffolding Limited | Construction | 2018 |
| Kase Consulting Limited | Real estate | 2017 |
| Kbng Ltd | Professional & scientific | 2014 |
| KBR Foreign Exchange Limited | Financial services | 2005 |
| KC Global Links Ltd | Wholesale & retail | 2014 |
| Keano's Animal Club Limited | Agriculture & fishing | 2019 |
| Kemo Food Ltd | Hospitality | 2024 |
| Kent Global Services Limited | Wholesale & retail | 2021 |
| Kenzaria Ltd | Wholesale & retail | 2026 |
| Khadimco Ltd | Wholesale & retail | 2025 |
| Khaleej Trading Company Limited | Wholesale & retail | 2018 |
| Khoh Counselling & Training Services Ltd | Transport & logistics | 2024 |
| Khyber Building Contractor Ltd | Construction | 2021 |
| KIT Buildings Ltd | Professional & scientific | 2020 |
| KJ Proassist Limited | Financial services | 2026 |
| KJM Earth Limited | Construction | 2024 |
| Kleanlux Solutions Limited | Administrative & support | 2025 |
| Klerva Ltd | Information & communication | 2025 |
| Kodra Teacher Classes Limited | Education | 2025 |