| HYT (Have Your Take) Africa Media Ltd | Information & communication | 2023 |
| Hytalentech Consulting Limited | Information & communication | 2016 |
| Hythe Services Limited | Professional & scientific | 1999 |
| Hyza Ltd | Wholesale & retail | 2018 |
| I & Co. Industries Limited | Real estate | 1996 |
| I & G Cadar DRY Lining Ltd | Construction | 2011 |
| I & I Designs Ltd | Manufacturing | 2015 |
| I AM Accounting Limited | Professional & scientific | 2024 |
| I AM Holdings MK Ltd | Financial services | 2025 |
| I AM Yhwh Ltd | Manufacturing | 2015 |
| I B Courier Ltd | Administrative & support | 2016 |
| I B & a J Oloni LLP | | 2020 |
| I B H Consulting Limited | Professional & scientific | 2013 |
| I CAN Assist Ltd | Administrative & support | 2024 |
| I CAN Group Limited | Information & communication | 2018 |
| I Care MK Ltd | Health & social care | 2023 |
| I Clay Bricklaying Contractors Ltd | Construction | 2021 |
| I Don'T Give a SIP Coffee Co. Limited | Hospitality | 2025 |
| I G Brickwork Limited | Construction | 2005 |
| I Have a Dream Limited | Education | 2024 |
| I KOT Care Ltd | Health & social care | 2018 |
| I Lewis Services Ltd | Professional & scientific | 2013 |
| I Like Dolls Limited | Information & communication | 2017 |
| I Like IT Here Cafe & Gifts Shop Ltd | Wholesale & retail | 2025 |
| I Love Catering Limited | Hospitality | 2022 |
| I Love Science Ltd | Professional & scientific | 2018 |
| I Maintain MK Ltd | Construction | 2022 |
| I Print MK Ltd | Manufacturing | 2009 |
| I R Industrial Services Limited | Professional & scientific | 2013 |
| I Scaffolding Access Limited | Construction | 2024 |
| I School Ltd | Education | 2018 |
| I Square Engineering Ltd | Professional & scientific | 2025 |
| I Stay Apartments Ltd | Hospitality | 2017 |
| I Stoica Construction Ltd | Construction | 2017 |
| I&C Drylining Ltd | Construction | 2016 |
| I&E Consulting Limited | Wholesale & retail | 2015 |
| I&G LUX Paint Ltd | Construction | 2024 |
| I-Analytics Ltd | Information & communication | 2011 |
| I-Btil.Africa Limited | Professional & scientific | 2008 |
| I-Fuelcards Ltd | Wholesale & retail | 1999 |
| I-Motive Limited | Professional & scientific | 2015 |
| I-Paxtech Limited | Information & communication | 2017 |
| I-Spied Limited | Wholesale & retail | 2018 |
| I-Texo Recruitment Ltd | Administrative & support | 2012 |
| I. S. Mechanical Services Limited | Construction | 2007 |
| I.A.G Consultancy Ltd | Information & communication | 2022 |
| I.B.Electrical&Partners Ltd | Construction | 2018 |
| I.D Education and Training Services Limited | Health & social care | 2025 |
| I.G.S Group Limited | Financial services | 2025 |
| I.H Plastering & Build Ltd | Construction | 2026 |
| I.H. Developments Limited | Construction | 1997 |
| I2U Limited | Wholesale & retail | 2026 |
| I3VOLVE Ltd | Information & communication | 2026 |
| Iaesthetics Ltd | Other services | 2020 |
| IAF Accounting Ltd | Professional & scientific | 2024 |
| IAH Ministries INT Ltd | Education | 2024 |
| IAM Studios Group Limited | Information & communication | 2023 |
| IAN Earle Aircraft Engineering Limited | Manufacturing | 2016 |
| IAN Halliday Ltd | Transport & logistics | 2007 |
| IAN KM Limited | Professional & scientific | 2011 |
| IAN M Taylor Limited | Health & social care | 2009 |
| IAN O'Brien Limited | Financial services | 2005 |
| IAN Waite Limited | Arts & recreation | 2010 |
| IAN Ward Flooring Limited | Construction | 2018 |
| IAN Young Plumbing and Heating Services Limited | Construction | 2009 |
| Iancu Sorinel Ltd | Transport & logistics | 2018 |
| Iapps Phonerepair Limited | Manufacturing | 2022 |
| Iaziz Ltd | Real estate | 2024 |
| IB Aviation Services Ltd | Administrative & support | 2017 |
| IB Racing Limited | Arts & recreation | 2023 |
| IB Valley Properties Ltd | Real estate | 2019 |
| IBA Fundco Limited | Financial services | 2025 |
| IBA Media Ltd | Information & communication | 2024 |
| IBA SOL Limited | Information & communication | 2018 |
| Ibacas Consultancy Limited | Professional & scientific | 2002 |
| Ibas Associates Ltd | Professional & scientific | 2012 |
| Ibeccs Ltd | Professional & scientific | 1990 |
| Iberian Investments Limited | Financial services | 2015 |
| Ibiz Solutions Limited Limited | Health & social care | 2013 |
| Ibiza Fashion Festival Limited | Wholesale & retail | 2016 |
| Ibka UK Limited | Water & waste | 2013 |
| IBN Abdul- Aziz Ltd | Real estate | 2024 |
| IBN Shams Practice Ltd | Health & social care | 2025 |
| Iboss Property Investments Ltd | Real estate | 2026 |
| Ibrahim Tajudeen Shop Ltd | Wholesale & retail | 2026 |
| Ibuilding Services Ltd | Professional & scientific | 2018 |
| IBV Services Ltd | Construction | 2022 |
| IC Consultancy Ltd | Professional & scientific | 2024 |
| Icart Investments Limited | Professional & scientific | 2006 |
| Icarus Athens Ltd | Wholesale & retail | 2020 |
| Icarus Digital Ltd | Information & communication | 2026 |
| Icarus Freight & Logistics Ltd | Transport & logistics | 2025 |
| ICD Interiors Ltd | Construction | 2016 |
| Ice Automotive Rooster Racing Equipment LLP | | 2014 |
| Ice Cold Ltd | Manufacturing | 2025 |
| Ice Theatre Limited | Administrative & support | 2023 |
| Iceboys Limited | Energy | 1999 |
| Icecold Anthems Ltd | Information & communication | 2026 |
| Icecold Refrigeration Commissioning Limited | Manufacturing | 2025 |
| Icegate Technology Ltd | Professional & scientific | 2020 |