| Higher Self Forge Ltd | Information & communication | 2022 |
| Highland Abseiling Services Ltd | Construction | 2024 |
| Hightime Consultants Limited | Information & communication | 2000 |
| Highway Recruitments Ltd | Administrative & support | 2020 |
| Higsons Limited | Professional & scientific | 2006 |
| Hilton Court Limited | Households | 1969 |
| HKF Comms Ltd | Information & communication | 2019 |
| HN Taylor Ltd | Hospitality | 2017 |
| Hoddesdon Carpet Centre Limited | Wholesale & retail | 2003 |
| Hodson Homes (Lytham) Limited | Construction | 2021 |
| Holmbrook Limited | Real estate | 1975 |
| Home Comfort Services (Fylde) Limited | Health & social care | 2015 |
| Home Comforts Day Centre Ltd | Health & social care | 2020 |
| Home Farm Lytham Limited | Agriculture & fishing | 2019 |
| Home Living Property Rentals Ltd | Real estate | 2022 |
| Home Services (NW) Ltd | Real estate | 2021 |
| Honeycombe Furniture Design Limited | Manufacturing | 1992 |
| Hopewell Academy Ltd | Education | 2025 |
| Horizon CNC Limited | Manufacturing | 2017 |
| Horizon Sail Ltd | Administrative & support | 2018 |
| Hosk Limited | Construction | 2022 |
| Hoskander Limited | Real estate | 2024 |
| Hoskisson Properties Ltd | Real estate | 2018 |
| Hot Girl Studio Limited | Arts & recreation | 2024 |
| Hot WAX Events Limited | Information & communication | 2020 |
| Hough Houses Ltd | Real estate | 2022 |
| Houses 4 Homes 4U Ltd | Real estate | 2019 |
| Ht&D 2025 Ltd | Real estate | 2021 |
| Ht&D Ltd | Real estate | 2025 |
| Hull Family Developments Ltd | Real estate | 2026 |
| Humanstack Limited | Health & social care | 2026 |
| Hurwitz Fine Instruments and Bows Ltd | Wholesale & retail | 2016 |
| Hy-Fly Game Farm Limited | Agriculture & fishing | 2017 |
| I CAN Hear Clearly NOW Ltd | Health & social care | 2024 |
| I.D. Energy Solutions Ltd | Other services | 2019 |
| I4 Consultancy Limited | Professional & scientific | 2014 |
| I4C Process Limited | Professional & scientific | 2012 |
| Iac(North West) Limited | Information & communication | 2018 |
| IAK Reporting Ltd | Health & social care | 2019 |
| IAM Intelligence Ltd | Information & communication | 2020 |
| IAN David Smith Ltd | Manufacturing | 2018 |
| Ibility Consulting Ltd | Information & communication | 2017 |
| Ickenham Developments LLP | | 2015 |
| ICON123PROPERTYINVESTMENT Ltd | Households | 2024 |
| IDA Farm Ltd | Agriculture & fishing | 2024 |
| Ideal Utilities Ltd | Administrative & support | 2018 |
| IDS Financial Services Ltd | Financial services | 2009 |
| IJ Comms Ltd | Professional & scientific | 2022 |
| IKS Takeaway Limited | Hospitality | 2025 |
| Imagineering Design Services Limited | Professional & scientific | 2001 |
| Impact Business Management Limited | Professional & scientific | 2002 |
| Impresa Corporation Ltd | Wholesale & retail | 2011 |
| IN the House Properties Ltd | Real estate | 2018 |
| IN Touch Amusement Limited | Arts & recreation | 2010 |
| IN-2-LOCK Limited | Construction | 2009 |
| In-Touch Properties Limited | Real estate | 2016 |
| In-Touch Property Rentals Limited | Real estate | 2016 |
| Indigo West Ltd | Construction | 2019 |
| Industrial Acquisition Limited | Professional & scientific | 2026 |
| Infinet Datacoms Limited | Information & communication | 1999 |
| Infinite Recovery Ltd | Education | 2021 |
| Infinity Electrical (NW) Limited | Construction | 2014 |
| Info SEC Pro Ltd | Professional & scientific | 2025 |
| Inglewood (Cumbria) Limited | Health & social care | 2021 |
| Ingraco Ltd | Information & communication | 2021 |
| Inland Resort Properties Ltd | Hospitality | 2025 |
| Inner Prescription Ltd | Information & communication | 2020 |
| Inneryou Living Ltd | Wholesale & retail | 2019 |
| Innovative Food Ingredients Limited | Wholesale & retail | 2008 |
| Inside Studio Ltd | Wholesale & retail | 2012 |
| Insolv Mktg Ltd | Professional & scientific | 2018 |
| Inspiration Books Limited | Education | 2017 |
| Inspire Futures Limited | Education | 2008 |
| Integrity Training & Consultancy Ltd. | Professional & scientific | 2006 |
| Interactive Comedy Ltd | Arts & recreation | 2026 |
| Intersys Micronics Limited | Information & communication | 1989 |
| Intrinsic DEV Limited | Information & communication | 2020 |
| Intrinsic Group Limited | Information & communication | 2015 |
| Investor Homes Limited | Real estate | 2021 |
| Ipiphany Ltd | Administrative & support | 2020 |
| Iplumb Blackpool Ltd | Construction | 2023 |
| Iridium IT Solutions Ltd | Information & communication | 2011 |
| Iris Peters Consulting Services Ltd | Information & communication | 2014 |
| Irving Property Group Ltd | Real estate | 2024 |
| IT Consultancy Ltd | Information & communication | 2026 |
| Italia Wine and Food Ltd | Wholesale & retail | 2018 |
| Itie Consultancy Limited | Information & communication | 2007 |
| IV Integrated Practice Ltd | Health & social care | 2025 |
| IWH Management Services Ltd. | Hospitality | 1999 |
| IWP Services Limited | Professional & scientific | 2017 |
| J & L Carr Jewellers (St.Annes) Ltd | Wholesale & retail | 2008 |
| J & S Taylor Property Limited | Real estate | 2011 |
| J and S Decorators North West Ltd | Construction | 2024 |
| J B Readymix Limited | Extraterritorial | 2016 |
| J Bell Structures Ltd | Professional & scientific | 2025 |
| J K Training & Coaching Limited | Administrative & support | 2006 |
| J M Wharton Motorsport Ltd | Manufacturing | 2018 |
| J Marsden (Fylde) Limited | Construction | 2002 |
| J R Thompson Investments (UK) Ltd | Financial services | 2020 |
| J&Ehousing Ltd | Real estate | 2025 |