| Glacial Services Ltd | Professional & scientific | 2023 |
| Glamkamel Ltd | Construction | 2025 |
| GLE Aesthetics Limited | Other services | 2022 |
| GLE Laser Limited | Other services | 2023 |
| GLE Skin Limited | Other services | 2024 |
| Gledhill Designs Limited | Professional & scientific | 2007 |
| Glendale Farming Ltd | Agriculture & fishing | 2017 |
| Glenn Morrissey Safety Ltd | Public administration | 2023 |
| Glid Wind Farms Topco Limited | Professional & scientific | 2008 |
| Glitters Cleaning Ltd | Administrative & support | 2025 |
| GLM Electrical Contractors Limited | Other services | 2010 |
| Global Capex Projects Limited | Professional & scientific | 2022 |
| Global Modular Systems Limited | Administrative & support | 2018 |
| Global Renovations UK Ltd | Construction | 2020 |
| Global Shipping Services Group Holdings Limited | Professional & scientific | 2005 |
| Global Shipping Services Logistics Limited | Transport & logistics | 2005 |
| Global Shipping Warehousing & Storage Ltd | Transport & logistics | 2003 |
| Global Warehousing & Storage Ltd | Real estate | 1967 |
| Global Welding and Diving Services Ltd | Professional & scientific | 2026 |
| Glow TAN Home Hire Sunbeds Ltd | Other services | 2021 |
| GMT Engineering (Lincs) Ltd | Construction | 2013 |
| GNA Investments Ltd | Financial services | 2019 |
| Go Cruise Grimsby Ltd | Administrative & support | 2015 |
| Go Dance (Lincoln) LLP | | 2013 |
| Go Dance Performing Arts LLP | | 2026 |
| Go Dance Studios LLP | | 2010 |
| Go Glow Ltd | Administrative & support | 2022 |
| Go Local Extra Grimsby Ltd | Wholesale & retail | 2022 |
| Go Physio & Beauty Limited | Health & social care | 2019 |
| Goactive Software Ltd | Extraterritorial | 2009 |
| Goals Lead Development Centre Ltd | Education | 2024 |
| Goals Lead Housing Limited | Real estate | 2024 |
| Goffin Residential Lettings Limited | Real estate | 2024 |
| Gogreen Pals Ltd | Wholesale & retail | 2021 |
| Golden Bank Limited | Extraterritorial | 2007 |
| Golden Caregivers Ltd | Health & social care | 2025 |
| Golden City Grimsby Ltd | Hospitality | 2024 |
| Golden Fish Global Concept Ltd | Other services | 2023 |
| Golden FRY Grimsby Ltd | Hospitality | 2024 |
| Golden Global Property Ltd | Real estate | 2019 |
| Golden Investments London Limited | Real estate | 2018 |
| Golden Oaks Services Limited | Other services | 2016 |
| Goldsworthy and Heals Limited | Wholesale & retail | 2019 |
| Golf SIM Solutions Limited | Manufacturing | 2024 |
| Golf Studio Design Limited | Wholesale & retail | 2020 |
| Golocal Stores Ltd | Wholesale & retail | 2024 |
| Good Day (Hull) Limited | Hospitality | 2023 |
| Goodwin Site Services Limited | Construction | 2022 |
| Goudes Limited | Real estate | 2005 |
| Goulceby Farming Limited | Agriculture & fishing | 2014 |
| GP Electrical Services Limited | Construction | 2026 |
| Gp-Sf LLP | | 2009 |
| Gp-Sf Train Factory Ltd | Real estate | 2019 |
| GPA Education Ltd | Information & communication | 2013 |
| GPC Recycling Limited | Water & waste | 2024 |
| GPC Timber Trading Company Ltd | Manufacturing | 2020 |
| GPG Contracts Ltd | Construction | 2010 |
| GPL Wind Limited | Professional & scientific | 2019 |
| Gpma Consultancy Limited | Professional & scientific | 2014 |
| GPS Designs Ltd | Professional & scientific | 2025 |
| Gptf Partners LLP | | 2018 |
| GR8FIT Carpets Ltd | Wholesale & retail | 2024 |
| Grab & Go Grimsby Limited | Hospitality | 2021 |
| Grace James Hair Salon Ltd | Other services | 2025 |
| Gracie & Cahill Ltd | Professional & scientific | 2019 |
| Graded Electrical Contractors Limited | Construction | 2007 |
| Gradient Homes Ltd | Real estate | 2022 |
| Graffitislaps Ltd | Wholesale & retail | 2026 |
| Grafikol Ltd. | Professional & scientific | 2011 |
| Graham Black Limited | Information & communication | 2013 |
| Graham Cowan Qhse Consultancy Services Ltd | Professional & scientific | 2025 |
| Grainsby Farms Limited | Agriculture & fishing | 1963 |
| Grand Design Services Lincolnshire Limited | Manufacturing | 2003 |
| Grand Gathering Limited | Hospitality | 2025 |
| Grange Electrical Services Limited | Construction | 2007 |
| Grange Fisheries Limited | Agriculture & fishing | 2016 |
| Grange Services (Lincs) Ltd | Hospitality | 2015 |
| Grant Berry Properties Ltd. | Real estate | 2001 |
| Graph!X Design Limited | Professional & scientific | 2006 |
| Graphicgoose Ltd. | Professional & scientific | 2016 |
| Grasby Lakes Ltd | Hospitality | 2022 |
| Grasshopper Garden Services Ltd | Administrative & support | 2010 |
| Graviton Creations Limited | Professional & scientific | 2001 |
| Gravity Red Inspires C.I.C. | Education | 2013 |
| Gravity Red Limited | Education | 2024 |
| Gray's Plumbing & GAS Services Limited | Construction | 2022 |
| Great British Agency Chefs Ltd | Other services | 2018 |
| Great Coates Motors Limited | Wholesale & retail | 1994 |
| Great Coates Road Plot 2A Ltd | Construction | 2026 |
| Great Grimsby Ice Factory Trust | Other services | 2012 |
| Great Grimsby Viking Project CIC | Education | 2025 |
| Greater Lincolnshire LEP Limited | Information & communication | 2014 |
| Green Construction Services Ltd | Professional & scientific | 2021 |
| Green Futures Greater Grimsby Ltd | Agriculture & fishing | 2009 |
| Green Path Limited | Administrative & support | 2010 |
| Greener Care Limited | Health & social care | 2026 |
| Greenheat Plumbing Solutions Limited | Construction | 2016 |
| Greenhouse Training Ltd | Education | 2015 |
| Greens on Toast Ltd | Agriculture & fishing | 2023 |
| Greenstripe Innovations Ltd | Wholesale & retail | 2023 |