| Hunts Chef Services Ltd | Hospitality | 2022 |
| Hurst Transport Services Limited | Professional & scientific | 2017 |
| Husk Bakehouse Ltd | Other services | 2026 |
| Husnain/Virk Ltd | Hospitality | 2025 |
| HUT Enterprise Limited | Health & social care | 2015 |
| HUT Therapies Ltd | Health & social care | 2019 |
| Huyton Asphalt Holdings Limited | Construction | 2015 |
| Huyton Asphalt Investments Limited | Financial services | 2018 |
| Huyton Asphalt Management Limited | Financial services | 2022 |
| Hyena Suction Excavator Services Ltd | Wholesale & retail | 2019 |
| Hyland Roofing and Cladding Limited | Construction | 2015 |
| Hynes Holdings Ltd | Real estate | 2020 |
| Hype Podcast Studios Ltd | Information & communication | 2025 |
| I C Roofing and Cladding (NW) Limited | Construction | 2018 |
| I E Legal Debt Recovery Limited | Administrative & support | 2019 |
| I E Legal Property Law Specialists Limited | Professional & scientific | 2019 |
| I Home Solutions Ltd | Construction | 2019 |
| I.J.Davidson Limited | Wholesale & retail | 2013 |
| IAN Tolmie Properties Ltd | Real estate | 2026 |
| Ibcv Limited | Construction | 2025 |
| Ibkholding Limited | Health & social care | 2023 |
| IC Automotive Ltd | Other services | 2019 |
| Icare Solutions Merseyside Ltd | Health & social care | 2019 |
| Ichim Services Transport Limited | Transport & logistics | 2018 |
| IDB Electrical Ltd | Construction | 2012 |
| IDB Ltd | Professional & scientific | 2022 |
| IDH Professional Services Ltd | Professional & scientific | 2023 |
| Ieremie Contractors Ltd | Construction | 2014 |
| IG Autos & Services Ltd | Wholesale & retail | 2025 |
| IG Car Sales Ltd | Wholesale & retail | 2019 |
| IG Heating Services Ltd | Construction | 2024 |
| IG Highway Design Consultants Limited | Professional & scientific | 2014 |
| IG1 Ltd | Professional & scientific | 2019 |
| Iglo Solutions Ltd | Information & communication | 2014 |
| Ignite Improvement Ltd | Professional & scientific | 2011 |
| IJ Brick Cutting Limited | Construction | 2017 |
| Ilish Limited | Hospitality | 2019 |
| Illi Holdings Ltd | Real estate | 2016 |
| Imaan Healthcare Limited | Wholesale & retail | 2012 |
| Imaan Ltd | Wholesale & retail | 2007 |
| Imaan Management Company Limited | Households | 2020 |
| Imagery Creative Studios Limited | Administrative & support | 2019 |
| Imagination Photographers Limited | Professional & scientific | 2020 |
| Imbatemp Limited | Wholesale & retail | 2011 |
| Imco (62000) Limited | Professional & scientific | 2000 |
| IMG Autotech Limited | Wholesale & retail | 2026 |
| IMP Traction Ltd | Transport & logistics | 2022 |
| Impact Project Consultancy Limited | Professional & scientific | 2026 |
| Impact Scaffolding Solutions Ltd | Construction | 2021 |
| Impact Vector Solutions Limited | Professional & scientific | 2026 |
| Impactum Ltd | Professional & scientific | 2024 |
| Impetro CIC | Education | 2010 |
| Imprestik Ltd | Manufacturing | 2001 |
| IN and OUT Valeting Limited | Administrative & support | 2021 |
| Ince Innhouse Management Limited | Hospitality | 2025 |
| Incubiq Limited | Professional & scientific | 2004 |
| Indie Property Developments Limited | Real estate | 2021 |
| Indoor Living Limited | Wholesale & retail | 2024 |
| Infinite Business Interiors Ltd | Wholesale & retail | 2025 |
| Inflix Ltd | Information & communication | 2021 |
| Infra Solutions Group Ltd | Construction | 2017 |
| Ingenio Tapas Ltd | Hospitality | 2018 |
| Inglenook Events Ltd | Wholesale & retail | 2020 |
| Inglenook Farm Ltd | Agriculture & fishing | 2020 |
| Inmuto Interim Ltd | Professional & scientific | 2014 |
| Inno Site Services Limited | Administrative & support | 2004 |
| Inovo (NW) Ltd | Information & communication | 2020 |
| Inovus Limited | Manufacturing | 2012 |
| Inspire and Grow Tutoring Ltd | Education | 2025 |
| Inspire CS Group Holdings Limited | Financial services | 2026 |
| Inspired Group NW Limited | Manufacturing | 2021 |
| Instant Lets Ltd | Real estate | 2018 |
| Insulation Innovation Ltd | Professional & scientific | 2024 |
| Integra Therapy Ltd | Health & social care | 2024 |
| Integral Business Solutions Limited | Administrative & support | 2018 |
| Integrated Compartment Solutions Ltd | Construction | 2016 |
| Intelligent Property Investment NW Ltd | Real estate | 2023 |
| International Accountancy Ltd. | Professional & scientific | 2016 |
| International Coaching Solutions Limited | Education | 2018 |
| International Polymer Solutions Ltd | Manufacturing | 2022 |
| Internet Wisdom Limited | Information & communication | 2010 |
| Interstellar Trading Limited | Wholesale & retail | 2016 |
| Into Wealth Management Limited | Financial services | 2014 |
| Invictus Energy Group Limited | Construction | 2018 |
| Invictus Home Energy Ltd | Construction | 2020 |
| Invisible INK Film and Television Ltd | Arts & recreation | 2021 |
| Inward Developments Ltd | Manufacturing | 2021 |
| IO Decorating Ltd | Construction | 2015 |
| Ionut Enterprise Ltd | Transport & logistics | 2020 |
| IP Exchange (MSP) Limited | Information & communication | 2018 |
| IP Property Group Limited | Real estate | 2020 |
| Ipharm Healthcare Limited | Professional & scientific | 2019 |
| IPM Financial Planning Ltd | Financial services | 2024 |
| IPM Property Consulting Ltd | Real estate | 2024 |
| IPS Property Investments Ltd | Real estate | 2021 |
| IR Dent Ltd | Transport & logistics | 2022 |
| IR Holdings & Investments Ltd | Real estate | 2022 |
| Iris Health and Well-Being Limited | Public administration | 2023 |
| Irrismart Limited | Other services | 2020 |
| Isik Bakery Ltd | Hospitality | 2019 |