| Genesis Pulse Trading Solutions Ltd | Manchester | 2025 |
| Genesis Semi-Independent Care Limited | Nottingham | 2020 |
| Genesis Storage Limited | Cwmbran | 2004 |
| Genesis Tech UK Limited | Chester | 2012 |
| Genesta Bathrooms Limited | London | 1950 |
| Genesta Trading Limited | London | 1983 |
| Genesure Limited | Stratford-Upon-Avon | 2012 |
| Genesys Integrated Systems Ltd | Crawley | 2020 |
| Genethics Ltd | St. Albans | 2023 |
| Genetics Gymnasium Ltd | Stevenage | 2025 |
| Geneva and London Property Limited | Gateshead | 2013 |
| Geneva Group Ltd | Brighton | 2024 |
| Geneva Investments (UK) Limited | Hove | 1999 |
| Geneva Services Limited | 29 Wellington Street | 1990 |
| Genevieve Davies Limited | York | 2009 |
| Genevieve French Limited | York | 2004 |
| Genevieve Limited | York | 2022 |
| Genevieve Rose Limited | York | 2004 |
| Genew Engineering Services Limited | Manchester | 2016 |
| Genflex Limited | Llanelli | 2003 |
| Geniate Limited | Chippenham | 2012 |
| Genic Solutions Limited | Glasgow | 2012 |
| Genick Management Ltd | Edinburgh | 2012 |
| Genie Facilities Ltd | Rotherham | 2020 |
| Genie Prive Boats Ltd | London | 2025 |
| Genie Sensors Limited | St Ives | 2015 |
| Genie Ventures Ltd | Cambridge | 2020 |
| Genisis Associates Limited | Wigan | 2013 |
| Genius Brothers Ltd | Hailsham | 2023 |
| Genius Construction Solutions Ltd | Portsmouth | 2002 |
| Genius Explorer Management Limited | Northampton | 2014 |
| Genius Plaza Int'L Co., Ltd. | Bromley | 2014 |
| Genius Work Force Solutions Ltd | Portsmouth | 2000 |
| Geniuslink Asset Management Limited | London | 2018 |
| Genlytiq Ltd | Halifax | 2011 |
| Genna Patricia MAY Haddock Limited | Birmingham | 2025 |
| Gennaios Ltd | London | 2025 |
| Genolink Innovations Ltd | Edinburgh | 2024 |
| Genomic Mining Limited | Belfast | 2001 |
| Genova Estates Ltd | Milton Keynes | 2015 |
| Genpax Inc Ltd | Beckenham | 2021 |
| Genports Limited | Harrogate | 2018 |
| Genrat Limited | Watford | 2023 |
| Gentas Laminates Limited | Dewsbury | 2010 |
| Gentas Surface Solutions Ltd | South Woodham Ferrers | 2020 |
| Genteq Limited | Plymouth | 2007 |
| Gentian (Andover Parking) Ltd | Chelmsford | 2014 |
| Gentian (Andover) Limited | Chelmsford | 2011 |
| Gentian (Bridgend) Limited | Chelmsford | 2014 |
| Gentian (Derby) Limited | Chelmsford | 2002 |
| Gentian (Finchley) Limited | Chelmsford | 2010 |
| Gentian (Gateshead) Limited | Chelmsford | 2012 |
| Gentian (GHP) Limited | Chelmsford | 2001 |
| Gentian (Mid-Essex) Limited | Chelmsford | 2010 |
| Gentian (Oxford) Limited | Chelmsford | 2005 |
| Gentian (Peterborough) Limited | Chelmsford | 2006 |
| Gentian (Southend) Limited | Chelmsford | 2010 |
| Gentian (Swansea) Limited | Chelmsford | 2012 |
| Gentian (Tunbridge) Limited | Chelmsford | 2005 |
| Gentian (Walsall) Limited | Chelmsford | 2006 |
| Gentian (Walsgrave) Limited | Chelmsford | 2002 |
| Gentian (Whiston) Limited | Chelmsford | 2005 |
| Gentian Commercial Limited | Chelmsford | 2014 |
| Gentle Earth Organics Limited | Cheltenham | 2011 |
| Gentleaid (16) Limited | | 2008 |
| Gentleaid (17) Limited | | 2008 |
| Gentleman JOE Limited | Stockport | 2024 |
| Gentleman's Carriage Service Limited | Wokingham | 2017 |
| Gentlemen of FEW Ltd | Dover | 2013 |
| Gentlemen's Field Limited | St Albans | 2013 |
| Gently Productions Limited | London | 2005 |
| Gentry Fire & Security Ltd | Rochford | 2020 |
| Genuine & Unique Services Ltd | Melton Mowbray | 2023 |
| Genuine Fake Limited | Canterbury | 2006 |
| Genuine IT Ltd | London | 2018 |
| Genuine Property Ltd | Wolverhampton | 2014 |
| Genuine Solutions North West Limited | Hyde | 2014 |
| Genuinestyle Limited | Pontefract | 1999 |
| Genus IT Limited | Estate Nuneaton | 2005 |
| Genus Vehicle Solutions Limited | Worsley | 1990 |
| Genweld Supplies Limited | Wolverhampton | 1978 |
| GEO & Joy Ltd | Horsham | 2020 |
| GEO Quarries Services Ltd | Leeds | 2019 |
| GEO Richardson & Sons Dewsbury Limited | Wakefield | 1961 |
| GEO T Baker (Mansfield) Limited | East Yorkshire | 1952 |
| Geo-Drill Scotland Limited | Edinburgh | 2021 |
| Geo-Minerals GT Limited | Dungannon | 2009 |
| GEO. Adams & Sons (Farms) Limited | Uxbridge | 1981 |
| GEO. Adams & Sons Limited | Uxbridge | 1961 |
| GEO. F. Trumper Limited | | 1986 |
| GEO. Jessop & Sons Ltd | Brough | 2021 |
| Geo.Thomas (Hairdressing) Limited | Cambridge | 2009 |
| Geo.Wright & Co.(Contractors Wolverhampton)Limited | York | 1943 |
| Geoblocks Digital Assets Limited | Chelmsford | 2025 |
| Geoblocks Gold Mines Limited | Chelmsford | 2025 |
| Geoclima (UK) Limited | Walsall | 2011 |
| Geodyst Limited | Stamford | 2020 |
| Geoff Sipson Group Limited | Coventry | 2020 |
| Geoffrey Gustave Stechman Ltd | London | 2021 |
| Geoffrey Paul John Ingram Ltd | Sutton Coldfield | 2024 |