| Genius Tech Repairs (Armthorpe) Limited | Other services | 2022 |
| Genius Tech Repairs Limited | Other services | 2018 |
| Gentiumuk K9 Operations Limited | Public administration | 2021 |
| Gentlemens Resale Limited | Wholesale & retail | 2025 |
| GENTS.EST.2025 Ltd | Other services | 2025 |
| GEO IT Solutions Ltd | Information & communication | 2025 |
| GEO. Moore Distributors Limited | Wholesale & retail | 2000 |
| Geocor Limited | Transport & logistics | 2019 |
| Geoda Courier Trans Ltd | Transport & logistics | 2025 |
| Geodetic Surveys & Engineering Limited | Construction | 2021 |
| Geoff Dadswell Carpets Limited | Wholesale & retail | 2002 |
| Geoff Happs Trophies Limited | Wholesale & retail | 2015 |
| Geoff Oliver Joinery Limited | Construction | 2002 |
| Geofocus Trust Services Ltd | Professional & scientific | 2008 |
| Geograph Project Limited | Information & communication | 2010 |
| Geoo Trans Ltd | Transport & logistics | 2025 |
| George Adrian Ltd | Transport & logistics | 2018 |
| George Beck Properties Limited | Real estate | 2004 |
| George Fisher Consulting Ltd | Professional & scientific | 2025 |
| George Hardiman TM Ltd | Public administration | 2025 |
| George IS Cooking Limited | Hospitality | 2026 |
| George Jackson & Sons (Motor Engineers) Limited | Wholesale & retail | 1963 |
| Georgesped Ltd | Transport & logistics | 2016 |
| Georgia and India Trading Limited | Wholesale & retail | 1998 |
| Georgiana Alius Limited | Health & social care | 2020 |
| Georgio's Vivo Limited | Hospitality | 2012 |
| Geostruc Limited | Construction | 2018 |
| Geosurveys Limited | Other services | 2003 |
| Geotalent Partners Ltd | Professional & scientific | 2026 |
| Gerald Civil Engineering Solutions Limited | Construction | 2025 |
| German Car Clinic Ltd | Wholesale & retail | 2014 |
| German Car Specialists (Doncaster) Ltd | Manufacturing | 2015 |
| Gerry & Olly Ltd | Manufacturing | 2020 |
| Gert Dekker Bouw Ltd | Construction | 2025 |
| GES Mechanical & Electrical Limited | Construction | 2015 |
| GES Transport Ltd | Transport & logistics | 2020 |
| GET IT Wrapped Ltd | Construction | 2026 |
| GET on Board Yorkshire CIC | Arts & recreation | 2022 |
| GET Stuffed Bawtry Ltd | Hospitality | 2024 |
| Getaway With Kelsey Travel Limited | Administrative & support | 2024 |
| Geva Trading Ltd | Transport & logistics | 2014 |
| GEX Logistics Limited | Transport & logistics | 2021 |
| Gezondheidscentrum Gebroeders Berkelaar LLP | | 2018 |
| GF Training and Assessing Ltd | Construction | 2025 |
| GFE Ltd | Transport & logistics | 2015 |
| GFO Ltd | Transport & logistics | 2021 |
| GFS Doncaster Limited | Construction | 2025 |
| GG & PPL Holdings Limited | Financial services | 2025 |
| GGI Delivery Ltd | Transport & logistics | 2024 |
| Ggteatime Limited | Information & communication | 2025 |
| GH Brick Specialist (Yorkshire) Limited | Wholesale & retail | 2018 |
| GH Building & Joinery Limited | Construction | 2010 |
| GH Country Limited | Wholesale & retail | 2017 |
| GHD Services Ltd | Water & waste | 2026 |
| Gheciutrans Limited | Transport & logistics | 2025 |
| Ghib Trans Limited | Transport & logistics | 2015 |
| Ghita Parts Ltd | Wholesale & retail | 2025 |
| Ghitulescudom Drive Services Ltd | Transport & logistics | 2026 |
| GHM Consultancy Ltd | Extraterritorial | 2023 |
| GHR 90 Limited | Wholesale & retail | 2017 |
| GIB Finance Ltd | Financial services | 2025 |
| Gibbard Wholesale Services Limited | Wholesale & retail | 2025 |
| Gibson Animal Services Ltd | Professional & scientific | 2020 |
| Gibson Works Management Company Limited | Real estate | 2007 |
| Giewont Ltd | Financial services | 2022 |
| Gift Gift Ltd | Wholesale & retail | 2018 |
| Giftbox Auckley Limited | Wholesale & retail | 2025 |
| Gifted Hands Africa Ltd | Extraterritorial | 2020 |
| Giga Trans Limited | Transport & logistics | 2024 |
| Gigawatt Industries Ltd | Construction | 2022 |
| Giggle Projects Limited | Hospitality | 2023 |
| GIJ Associates Limited | Professional & scientific | 2021 |
| Gikon Limited | Health & social care | 2025 |
| Gikspedition Ltd | Transport & logistics | 2024 |
| Gilbert 1970 Limited | Extraterritorial | 2013 |
| Gilbert Elliot Rowe Ltd | Professional & scientific | 2016 |
| Gilderson Accountancy Services LLP | | 2001 |
| Gilderson, Herbert & Long Ltd | Professional & scientific | 2014 |
| Gilead Medics Ltd | Health & social care | 2024 |
| Gill Music Limited | Arts & recreation | 2010 |
| GILL1313 Ltd | Wholesale & retail | 2024 |
| Gillard & Young Electrical Ltd | Construction | 2008 |
| Gillespie Engineering Limited | Professional & scientific | 2025 |
| Gilly's Lifestore Ltd | Extraterritorial | 2017 |
| Gimgim Catering Equipment Ltd | Wholesale & retail | 2022 |
| GIN Trading Materials Limited | Wholesale & retail | 2026 |
| Gingerkid Executive Search Limited | Other services | 2018 |
| Giovanni DI Primavera Ltd | Construction | 2024 |
| Giraffe IT LLP | | 2010 |
| Girl Power United CIC | Education | 2025 |
| Giromex Ltd | Wholesale & retail | 2016 |
| GIS Consultants Ltd | Information & communication | 1993 |
| Giuves Ltd | Financial services | 2025 |
| Givozen Ltd | Construction | 2025 |
| Gizzonio Consultancy Ltd | Financial services | 2024 |
| GK Construction Consultancy Limited | Professional & scientific | 2023 |
| GK Heavy Ltd | Professional & scientific | 2026 |
| GK Visuals Ltd | Information & communication | 2025 |
| Gladiator Holdings Limited | Financial services | 2025 |
| Gladiator Management Solutions Limited | Professional & scientific | 2015 |