| Genegini Limited | Professional & scientific | 2021 |
| Genematch Health CIC | Information & communication | 2026 |
| Genera Systems Ltd | Manufacturing | 2024 |
| General Applications Limited | Extraterritorial | 2020 |
| General Car Parts Ltd | Wholesale & retail | 2025 |
| General Commercial Objects Limited | Extraterritorial | 2008 |
| General DVG Ltd | Construction | 2019 |
| General Green Company Ltd | Administrative & support | 2016 |
| General Insurance Distribution Limited | Financial services | 2008 |
| General Joinery & Building Limited | Construction | 2011 |
| General Lasers Ltd | Professional & scientific | 2020 |
| General Management Systems Ltd | Real estate | 1996 |
| General Medical Consulting Limited | Health & social care | 2023 |
| General Medical Corporation Limited | Health & social care | 2015 |
| General Practice Specialists Ltd | Health & social care | 2022 |
| General Recycling Solutions Ltd | Wholesale & retail | 2022 |
| General Services Administration Ltd | Wholesale & retail | 2020 |
| General Space Ltd | Construction | 2023 |
| General Spud Ltd | Hospitality | 2025 |
| General Trading 07 Limited | Wholesale & retail | 2026 |
| Generate Legal Ltd | Professional & scientific | 2019 |
| Generation 200 Ltd | Construction | 2018 |
| Generation 300 Ltd | Construction | 2018 |
| Generation 400 Ltd | Construction | 2018 |
| Generation 500 Ltd | Construction | 2018 |
| Generation C Limited | Education | 2023 |
| Generation Climate Impact CIC | Education | 2024 |
| Generation Ltd | Professional & scientific | 2004 |
| Generation Management LLP | | 2013 |
| Generation VR Ltd | Information & communication | 2018 |
| Generation Z Recruitment Limited | Administrative & support | 2024 |
| Generational Wealth Genie Limited | Administrative & support | 2023 |
| Generational Wealth Limited | Administrative & support | 2018 |
| Generational Wealth Network Limited | Administrative & support | 2022 |
| Generational Wealth Services Limited | Administrative & support | 2022 |
| Generations Wealth Limited | Information & communication | 2017 |
| Genero Project Services Limited | Construction | 2020 |
| Genes Group Ltd | Wholesale & retail | 2025 |
| Genesis 2014 (UK) Ltd | Transport & logistics | 2014 |
| Genesis Childcare Consultancy Limited | Education | 2003 |
| Genesis DNA Ltd | Wholesale & retail | 2019 |
| Genesis Forklift Trucks Limited | Wholesale & retail | 2023 |
| Genesis Healthcare Holdings Ltd | Health & social care | 2025 |
| Genesis Infinity Limited | Information & communication | 2012 |
| Genesis LAB Ltd | Administrative & support | 2016 |
| Genesis Leisure (NW) Ltd | Hospitality | 2020 |
| Genesis Living Holdings Limited | Real estate | 2024 |
| Genesis Point Limited | Real estate | 2018 |
| Genesis Property Ltd | Real estate | 2016 |
| Genesis Pulse Trading Solutions Ltd | Extraterritorial | 2025 |
| Genesis PV Investments Limited | Financial services | 2011 |
| Genesis Rail Ltd | Construction | 2024 |
| Genesis Stride Ltd | Wholesale & retail | 2025 |
| Geneskincare Limited | Health & social care | 2023 |
| Genesys Property Ltd | Real estate | 2022 |
| Genew Engineering Services Limited | Extraterritorial | 2016 |
| Genewatch UK | Professional & scientific | 1998 |
| Genfixs Limited | Information & communication | 2025 |
| Gengar Limited | Wholesale & retail | 2023 |
| Genhaul Ltd | Wholesale & retail | 2025 |
| Genhaven Asset Ltd | Information & communication | 2021 |
| Genhaven Property Trading Ltd | Information & communication | 2021 |
| Geni Body Coaching Ltd | Other services | 2019 |
| Genie and the Geek Limited | Professional & scientific | 2012 |
| Genie Connect Ltd | Information & communication | 2024 |
| Genie Lifestyle Limited | Wholesale & retail | 2014 |
| Genies Takeaway Limited | Hospitality | 2022 |
| Genincode PLC | Professional & scientific | 2018 |
| Genincode UK Limited | Professional & scientific | 2021 |
| Genini Takeaway Ltd | Hospitality | 2025 |
| Genitive Limited | Professional & scientific | 2010 |
| Genius & Design Technologies Ltd | Manufacturing | 2026 |
| Genius Alliance EDU Ltd | Education | 2024 |
| Genius Consultants Ltd | Wholesale & retail | 2014 |
| Genius Digital Services Ltd | Information & communication | 2025 |
| Genius Education Limited | Education | 2013 |
| Genius Interiors Group Ltd | Manufacturing | 2017 |
| Genius Pro Contract Services Ltd | Administrative & support | 2002 |
| Genius TEX UK Limited | Wholesale & retail | 2018 |
| Genkai Marketing Ltd. | Professional & scientific | 2023 |
| Gennate Ltd | Professional & scientific | 2022 |
| Gennings Limited | Administrative & support | 2017 |
| Gennyfab Limited | Health & social care | 2022 |
| Geno Kaymaxx Limited | Real estate | 2022 |
| Genoeg Consulting Ltd | Information & communication | 2023 |
| Genot Hieghts Trading and Contracting Ltd | Wholesale & retail | 2025 |
| Genov Ltd | Transport & logistics | 2016 |
| GENR8 Developments LLP | | 2007 |
| GENR8 Investments Limited | Administrative & support | 2015 |
| GENR8 Management Services Ltd | Professional & scientific | 2019 |
| GENR8 Riverside Hotel Limited | Hospitality | 2020 |
| GENR8 Smithfield Hotel Ltd | Hospitality | 2017 |
| GENR8 Smithfield Works Limited | Real estate | 2021 |
| GENR8 Trustees Limited | Administrative & support | 2022 |
| Genre Music Limited | Arts & recreation | 2006 |
| Genrih Construction Limited | Construction | 2024 |
| Genserv Northwest Ltd | Manufacturing | 2020 |
| Gensight.Ai Limited | Information & communication | 2026 |
| Gensoft Ltd | Information & communication | 2014 |
| Gent Cutters Ltd | Other services | 2015 |