| Geldard Consulting Limited | Professional & scientific | 2009 |
| Gem's Pomskies Adventures Ltd | Agriculture & fishing | 2020 |
| George Woodward Ltd | Health & social care | 2023 |
| GET Sorted Manufacturing Limited | Professional & scientific | 2010 |
| Giani & Muller (UK) Limited | Transport & logistics | 2017 |
| Giani & Muller Limited | Transport & logistics | 2013 |
| Gibtec Web Design Ltd | Information & communication | 2022 |
| Giddins Ltd | Extraterritorial | 2024 |
| Gifts Unseen Limited | Wholesale & retail | 2024 |
| Giraffe Distillers Ltd | Manufacturing | 2022 |
| Gissing Ltd | Extraterritorial | 2022 |
| Glanford and Scunthorpe Canoe Club Ltd | Arts & recreation | 2014 |
| Glanford Beet Limited | Agriculture & fishing | 2002 |
| Globepalm Limited | Real estate | 1981 |
| Golden City Brigg Ltd | Hospitality | 2021 |
| Gorilla Heat Ltd | Construction | 2023 |
| GPL Properties NO.11 Ltd | Real estate | 2013 |
| GPL Properties NO.2 Limited | Real estate | 2012 |
| GPL Properties NO.21 Limited | Real estate | 2016 |
| GPL Properties NO.5 Limited | Real estate | 2012 |
| GPL Properties NO.6 Limited | Real estate | 2011 |
| Graham Pressler Ltd | Professional & scientific | 2012 |
| Grandad's Shed Ltd | Hospitality | 2013 |
| Grange Project Management Limited | Construction | 1992 |
| Grassfields Close Management Company Limited | Real estate | 2023 |
| Green Box Homes Ltd | Real estate | 2011 |
| Green Cactus Ltd | Wholesale & retail | 2010 |
| Green MAN Scamblesby Limited | Hospitality | 2019 |
| Greens Machines Limited | Wholesale & retail | 2010 |
| Grexmor Limited | Hospitality | 2015 |
| Grovewold Farm Services Limited | Other services | 2016 |
| Grvw Developments Limited | Real estate | 2025 |
| GTJ Management Ltd | Extraterritorial | 2015 |
| Guardsman Major 12 Limited | Other services | 2011 |
| GVL Training and Compliance Ltd | Education | 2023 |
| H & R Joinery Ltd | Construction | 2019 |
| H M Engineering Solutions Ltd | Professional & scientific | 2021 |
| H.R.S.L Ltd | Information & communication | 2009 |
| H2E Drinks Limited | Wholesale & retail | 2018 |
| H2O Heating Engineers Ltd | Construction | 2023 |
| H2O Properties Ltd | Real estate | 2025 |
| Haile Sand Fort Limited | Real estate | 2018 |
| Hair by Peter Limited | Other services | 2006 |
| Hall Farm Potato Services Limited | Manufacturing | 1969 |
| HAM Developments Limited | Real estate | 2026 |
| Handstead Homes Limited | Construction | 2026 |
| Happy Hounds for Life Ltd | Information & communication | 2021 |
| Happy Melon Skin Care Limited | Manufacturing | 2018 |
| Hardwick Asset Holdings Limited | Other services | 2026 |
| Hardwick Property Development Limited | Real estate | 2022 |
| Harrisons Hideaway Ltd | Hospitality | 2016 |
| Harsley Limited | Professional & scientific | 2022 |
| Havercroft Construction Limited | Construction | 1985 |
| Havercroft Holdings Limited | Financial services | 2020 |
| Hazel Tree Drive Limited | Households | 2025 |
| HCV Humberside Limited | Transport & logistics | 2023 |
| Healthfresh Foods Limited | Manufacturing | 2014 |
| Healthfresh Properties Limited | Manufacturing | 2003 |
| Hedison Motors Limited | Wholesale & retail | 2007 |
| Hibg Limited | Extraterritorial | 2012 |
| Hiddenline Architectural Design Ltd | Professional & scientific | 2019 |
| High and DRY Renovations Limited | Construction | 2012 |
| High Grange Consultants Ltd | Professional & scientific | 2016 |
| High Summit Limited | Administrative & support | 2012 |
| Highways Group Limited | Financial services | 2023 |
| Highways Lining Limited | Other services | 2019 |
| Hillview Garden Centres (Hilltop) Limited | Wholesale & retail | 2012 |
| Hillview Garden Centres (Little Heath) Limited | Wholesale & retail | 2014 |
| Hillview Garden Centres (Redditch) Limited | Wholesale & retail | 2011 |
| Hmyc Properties Limited | Real estate | 2019 |
| Holis Pilates and Wellness Ltd | Arts & recreation | 2025 |
| Homecrafts (Brigg) Limited | Construction | 1989 |
| Homecrafts (Build) Limited | Construction | 2008 |
| Honey BEE Interiors Limited | Wholesale & retail | 2011 |
| Hornbuckle Mitchell & Co.Limited | Real estate | 1956 |
| Hornsby Accounts Ltd | Professional & scientific | 2003 |
| House of Stoves Ltd | Wholesale & retail | 2021 |
| Howe&Cad Limited | Professional & scientific | 2025 |
| Howefresh Ltd | Professional & scientific | 2015 |
| Howson Building Services Limited | Construction | 2013 |
| HPL Properties NO.1 Limited | Real estate | 2012 |
| HPL Properties NO.2 Limited | Real estate | 2012 |
| HPL Properties NO.4 Ltd | Real estate | 2021 |
| HS Home Deliveries Ltd | Transport & logistics | 2025 |
| Humber Warehousing Limited | Transport & logistics | 2022 |
| Humberston Groundworks Ltd | Construction | 2021 |
| I Learn Education Ltd | Health & social care | 2013 |
| IAN Plumtree Solutions Limited | Professional & scientific | 2006 |
| Icash Accountancy Services Limited | Professional & scientific | 2002 |
| ICG Direct Limited | Wholesale & retail | 2018 |
| Icon Steel Limited | Manufacturing | 2022 |
| IN Step Admin Solutions Ltd | Administrative & support | 2025 |
| Infocus ID Ltd | Manufacturing | 2013 |
| Insu-Line Limited | Construction | 1998 |
| Invalesco Limited | Wholesale & retail | 2012 |
| Invictus Morale Limited | Manufacturing | 2017 |
| Inzen Stores Ltd | Wholesale & retail | 2021 |
| IPL Properties NO.1 Limited | Real estate | 2015 |
| Iprecision Limited | Construction | 2013 |
| Isn'T SHE Lovely Limited | Wholesale & retail | 2019 |