| Heart of England Landscapes Ltd | Professional & scientific | 2025 |
| Heat Grants UK Ltd | Professional & scientific | 2025 |
| Helen Clews Ltd | Other services | 2024 |
| Hello Taxi Bedworth Limited | Transport & logistics | 2023 |
| Helping Hancox Ltd | Construction | 2025 |
| Henisan Managed Services Ltd | Health & social care | 2019 |
| Henry's Garden Ltd | Manufacturing | 2017 |
| Hety Property Group Ltd | Financial services | 2026 |
| Heyes Haulage Ltd | Transport & logistics | 2024 |
| HFJ Property Ltd | Real estate | 2026 |
| Hinckley Blinds Limited | Wholesale & retail | 2017 |
| HKC (Coventry) Ltd | Hospitality | 2018 |
| Holland & Hall Joinery Limited | Manufacturing | 2007 |
| Home Comforts Coventry Limited | Wholesale & retail | 2025 |
| Home Comforts Kenilworth Limited | Wholesale & retail | 2026 |
| Home Comforts Nuneaton Ltd | Wholesale & retail | 2026 |
| Home Efficiency Grants Ltd | Administrative & support | 2023 |
| Home Style Wraps Ltd | Manufacturing | 2020 |
| Home Visit Foot Care Limited | Health & social care | 2018 |
| Hooper Cars Limited | Transport & logistics | 2003 |
| Hoskin Developments Ltd | Real estate | 2022 |
| Hot Dog Solutions Limited | Information & communication | 2019 |
| HP Fire & Security Ltd | Construction | 2026 |
| Hqcl Limited | Real estate | 2025 |
| HRE Properties Limited | Real estate | 2025 |
| HSB Safety Limited | Health & social care | 2016 |
| Huntington's Disease Youth Organisation Ltd | Other services | 2011 |
| I R Brickwork Limited | Construction | 2021 |
| Ibexstores Ltd | Wholesale & retail | 2022 |
| Ibrahim BAL Ltd | Hospitality | 2019 |
| Icarus Driver Services Ltd | Transport & logistics | 2014 |
| Iconnect GP Services Limited | Manufacturing | 2014 |
| Iconnect S & M Limited | Wholesale & retail | 2015 |
| Icrack Phones Limited | Wholesale & retail | 2020 |
| Ideal Locations London Limited | Real estate | 2015 |
| IJK Consultancy Limited | Professional & scientific | 2015 |
| Illyria Industries Ltd | Arts & recreation | 2023 |
| Imperial Cuisine Ltd | Hospitality | 2019 |
| Imporex-I Limited | Wholesale & retail | 1991 |
| Indian Street Food Corner Ltd | Hospitality | 2023 |
| Industrial Testing & Certification Limited | Administrative & support | 2023 |
| Infinity Electrics & Security Ltd | Construction | 2006 |
| Innoka Build Ltd | Construction | 2026 |
| INPOINT10 Ltd | Extraterritorial | 2019 |
| INS Motors Limited | Wholesale & retail | 2023 |
| Instrading Ltd | Wholesale & retail | 2020 |
| Intelligent Maintenance Docklands Limited | Construction | 2017 |
| Interflooring Exibitions Carpeting Ltd | Wholesale & retail | 2017 |
| Invent-Tech Limited | Wholesale & retail | 2018 |
| Islandbuild Ltd | Construction | 2025 |
| J & H Pilling Limited | Transport & logistics | 2007 |
| J & K Lynch Limited | Real estate | 2026 |
| J Badjie Autos Ltd | Professional & scientific | 2025 |
| J L H Installations Ltd | Construction | 2016 |
| J M Davis Brickwork Ltd | Construction | 2020 |
| J P Langley & SON Electrical Services Limited | Construction | 2003 |
| J Sidhu Investment Ltd | Real estate | 2025 |
| J&D Sparkle Cleaners Ltd | Administrative & support | 2024 |
| J&J Hien Ltd | Real estate | 2025 |
| J&T Transport Limited | Transport & logistics | 2020 |
| J.N.C. Plastering Services Limited | Construction | 2003 |
| Jacques Mechanical Services Ltd | Manufacturing | 2021 |
| Jade House (WM) Ltd | Hospitality | 2019 |
| Jadehill Limited | Professional & scientific | 2017 |
| Jaikm Ltd | Households | 2020 |
| Jaikm Retail Ltd | Wholesale & retail | 2021 |
| Jake Brindley Electrical Ltd | Construction | 2023 |
| Jaques Yard Management Ltd | Households | 2018 |
| Jassowal Ltd | Transport & logistics | 2023 |
| Jbxhosting Limited | Information & communication | 2008 |
| JD Electrical and Property Solutions Ltd | Construction | 2021 |
| JDM Imports Ltd | Wholesale & retail | 2021 |
| Jeff Walton Quality Consultancy Ltd | Administrative & support | 2024 |
| Jendys Group Ltd | Other services | 2024 |
| JF Total Property Maintenance Ltd | Construction | 2024 |
| JG Services Midlands Ltd | Arts & recreation | 2018 |
| Jjlwilliams Enterprise Ltd | Administrative & support | 2019 |
| JL Metro Ltd | Financial services | 2025 |
| John French Electrical Limited | Construction | 2014 |
| John Taylor (Silversmiths) Limited | Extraterritorial | 1941 |
| John Taylor, Poston & Co. Limited | Extraterritorial | 1964 |
| Jonesnco Cast Metal Designs Ltd | Manufacturing | 2022 |
| Joshjoebuildingworks Ltd | Construction | 2025 |
| Jrcl Property Services Ltd | Real estate | 2024 |
| JRZ Electrical Ltd | Construction | 2023 |
| JS Air Conditioning Services Ltd | Extraterritorial | 2021 |
| JS Electrical Projects Limited | Construction | 2015 |
| JSB Collectables Limited | Wholesale & retail | 2026 |
| JSC Electrical Services Ltd | Other services | 2008 |
| Jsrlogistics Limited | Transport & logistics | 2022 |
| JSS & GSS Properties Ltd | Real estate | 2025 |
| JSS Transport Services Limited | Transport & logistics | 2020 |
| Jssrecovery Ltd | Wholesale & retail | 2010 |
| JT Fast Logistics Ltd | Transport & logistics | 2025 |
| JT Garden Maintenance Ltd | Administrative & support | 2026 |
| Jude's Jolly Cafe Ltd | Hospitality | 2021 |
| Jung FU Holdings Ltd | Financial services | 2016 |
| JZ Videos Limited | Information & communication | 2025 |
| K.K. Contractors London Ltd | Construction | 2019 |
| K.S.M. Holdings Limited | Real estate | 1984 |