| Gliga Tree Services Limited | Agriculture & fishing | 2018 |
| Glynn Dunford Ltd | Wholesale & retail | 2025 |
| GMS Consultancy Services Limited | Professional & scientific | 2008 |
| Great Head House Estates Limited | Real estate | 1982 |
| Great Things (GB) Limited | Manufacturing | 2006 |
| Green Lets Limited | Real estate | 2022 |
| Greenhow North West Limited | Administrative & support | 2009 |
| Greenights Ltd | Wholesale & retail | 2021 |
| Greenlane Archaeology Limited | Administrative & support | 2005 |
| Greensmith Forests Ltd | Agriculture & fishing | 2026 |
| Greenwich House Arthur Road Limited | Real estate | 2017 |
| Greyshack Ltd | Professional & scientific | 2018 |
| Grimefighters Ltd | Administrative & support | 2021 |
| Grizedale Arts | Arts & recreation | 1999 |
| Groffa Crag Management Company Ltd | Households | 2001 |
| Grove Contractors (UK) Limited | Construction | 2011 |
| Growise App Ltd | Information & communication | 2022 |
| Gryffins Lettings Ltd | Real estate | 2024 |
| Guerilla Trading Inc. Limited | Wholesale & retail | 2006 |
| GUY Mccullough Building Services Ltd. | Construction | 1997 |
| GVC Lettings Ltd | Real estate | 2024 |
| GXT Properties Ltd | Real estate | 2024 |
| H. & B. (Ulverston) Limited | Wholesale & retail | 1982 |
| H5 Property Management Ltd | Real estate | 2026 |
| Hanna Munro Occupational Therapy Limited | Health & social care | 2024 |
| Happy Go Cleaning Ltd | Administrative & support | 2020 |
| Harborfront West Ltd | Real estate | 1998 |
| Hargreaves Enterprises Ltd | Hospitality | 1947 |
| Hargreaves Enterprises Property Ltd | Real estate | 2017 |
| Hargreaves Parent Co Limited | Financial services | 2026 |
| Harrocks Limited | Administrative & support | 2004 |
| Harry's Caravans Ltd | Wholesale & retail | 2026 |
| Harry's Holiday Park Ltd | Hospitality | 2026 |
| Harry’S Homekill Ltd | Manufacturing | 2025 |
| Harter Consulting Ltd | Professional & scientific | 2019 |
| Harwood Financial Planning Limited | Professional & scientific | 2018 |
| Havana Service Ltd | Wholesale & retail | 2026 |
| Hawcoat Residential Limited | Households | 2024 |
| HC Hairdressing Limited | Other services | 2012 |
| HD Equities Limited | Professional & scientific | 2021 |
| HE Baha Ltd | Extraterritorial | 2022 |
| HE Talent Ltd | Administrative & support | 2026 |
| Heacol Consultants Ltd | Professional & scientific | 2017 |
| HEADCOACH23 Ltd | Education | 2013 |
| Health Compliance (UK) Ltd | Health & social care | 2013 |
| Heatpalz Ltd | Manufacturing | 2026 |
| Helen Wilson Psychotherapy Limited | Health & social care | 2023 |
| Helen's Chocolates Limited | Extraterritorial | 2003 |
| Herdwick Properties Limited | Construction | 2000 |
| Heritage Mason Ltd | Manufacturing | 2024 |
| Hetti Limited | Manufacturing | 2025 |
| Heywood Plumbing and Building Services Limited | Construction | 2016 |
| HH Property Development Limited | Real estate | 2025 |
| High Bethecar LLP | | 2026 |
| High SIX Consulting Limited | Information & communication | 2015 |
| Highthwaite Ltd | Construction | 2020 |
| Hill's Painting Services Limited | Construction | 2008 |
| HJE Rentals Limited | Real estate | 2025 |
| HO App Co Limited | Information & communication | 2019 |
| HO Property 2 Limited | Real estate | 2019 |
| HO Property 3 Limited | Real estate | 2019 |
| HO Property 4 Limited | Real estate | 2019 |
| HO Property 5 Limited | Real estate | 2021 |
| HO Property 6 Limited | Real estate | 2022 |
| HO Property Limited | Real estate | 2017 |
| Hoad Homes Limited | Real estate | 2024 |
| Hoadhill Management Services Limited | Administrative & support | 2009 |
| Hoho Properties Limited | Financial services | 2021 |
| Holden & Co (Barrow) Limited | Other services | 2020 |
| Home & Finance IFA Limited | Financial services | 1988 |
| Hope and Anchor Ulverston Ltd | Hospitality | 2014 |
| Hornby Commercial Finance Limited | Professional & scientific | 2017 |
| Hospice of ST. Mary of Furness | Health & social care | 1986 |
| Hotel Annex Limited | Real estate | 2021 |
| Howard Smith Consultancy Limited | Professional & scientific | 1996 |
| Howcol Properties Limited | Real estate | 1994 |
| HQ Global Trading Ltd | Construction | 2020 |
| HRS Lindal Limited | Real estate | 2002 |
| I Athersmith Limited | Construction | 2023 |
| I.W. Boatbuilders Ltd | Manufacturing | 2015 |
| Icecream NW Limited | Manufacturing | 2025 |
| Idomains Limited | Information & communication | 2023 |
| IJB Investment Management Limited | Professional & scientific | 2018 |
| Ikigai Adventures Limited | Other services | 2022 |
| Inner Child Ltd | Professional & scientific | 2016 |
| Inno Hospitality Collective Limited | Hospitality | 2021 |
| Inspectec Limited | Professional & scientific | 2009 |
| Intelisys Limited | Manufacturing | 1996 |
| Intelisys Products Limited | Manufacturing | 2015 |
| Interiors by Isis Limited | Administrative & support | 2005 |
| International Company and Commercial Limited | Professional & scientific | 2017 |
| IPC Electronics Limited | Manufacturing | 2010 |
| Ipsam Limited | Manufacturing | 2025 |
| Istanbul Barber Ulverston Ltd | Other services | 2024 |
| It’S Yummy Time Limited | Hospitality | 2024 |
| Ivanidea Limited | Real estate | 2007 |
| J & G Consulting and Training Services Limited | Administrative & support | 2014 |
| J & K Blackett Limited | Professional & scientific | 2012 |
| J + L Project Services Ltd | Professional & scientific | 2007 |
| J C Green Limited | Construction | 2013 |