| Garrytee Music and Entertainment Limited | Arts & recreation | 2025 |
| Garside GAS Services Limited | Construction | 2020 |
| Garside Off-Road Support Limited | Transport & logistics | 2026 |
| Garside Supply’S Ltd | Construction | 2025 |
| Garston Tanning Company Limited | Manufacturing | 1913 |
| Garston Trading Ltd | Wholesale & retail | 2019 |
| Gartside Coinvest LP | | 2022 |
| Gartside Group Limited | Financial services | 2020 |
| Gartside Holdings Limited | Real estate | 2004 |
| Gartside Investments Limited | Real estate | 2005 |
| Gartside Limited | Real estate | 2002 |
| Gartside Street Dental Lounge Limited | Health & social care | 2019 |
| Garvey & Young Ltd | Other services | 2014 |
| Garvey Plant (Excavation) Limited | | 1969 |
| Garvin Entertainment & Event Ltd | Administrative & support | 2026 |
| Garvin Security Ltd | Administrative & support | 2025 |
| Garvins Law Limited | Professional & scientific | 2016 |
| Gary Ashton Properties Investments Limited | Real estate | 2006 |
| Gary Ashton Properties Limited | Construction | 2002 |
| Gary Bailey G.B. Limited | Professional & scientific | 2017 |
| Gary Bolger Limited | Professional & scientific | 2019 |
| Gary Boyle Associates Ltd | Professional & scientific | 2016 |
| Gary Brown Consulting Ltd | Education | 2012 |
| Gary Clarke Builders Ltd | Construction | 2020 |
| Gary Coope Golf Ltd. | Wholesale & retail | 2017 |
| Gary Flaherty Limited | Professional & scientific | 2017 |
| Gary Fletcher Transport Limited | Transport & logistics | 2019 |
| Gary Hinde Ltd | Administrative & support | 1999 |
| Gary Perry & Sons Ltd | Construction | 2021 |
| Gary Shaw Designs Limited | Professional & scientific | 2022 |
| GAS and Power Limited | Energy | 2015 |
| GAS Boiler.Co Limited | Construction | 2018 |
| GAS Fires Central Limited | Other services | 2017 |
| GAS IT UP Limited | Construction | 2016 |
| GAS MAC Limited | Construction | 2014 |
| GAS Medical Services Ltd | Health & social care | 2021 |
| GAS Membranes Limited | Construction | 2025 |
| GAS Network Training Ltd | Education | 2018 |
| GAS North West Limited | Construction | 2016 |
| GAS Safety Certificates MCR Ltd | Wholesale & retail | 2022 |
| GAS Safety Manchester Limited | Construction | 2022 |
| GAS Safety MCR Ltd | Construction | 2026 |
| GAS Secure (NW) Limited | Construction | 2017 |
| GAS Service North West Limited | Construction | 2021 |
| GAS Street Development Limited | Real estate | 2021 |
| GAS Tech(Manchester) Limited | Construction | 2025 |
| GAS Trust Engineer Ltd | Administrative & support | 2017 |
| GAS Works Flying Group Limited | Other services | 2008 |
| GAS2WIRE (G2W) Ventures Limited | Energy | 2018 |
| Gasavant Africa Trading Ltd | Mining & quarrying | 2023 |
| Gascall Heating Services Limited | Construction | 2021 |
| Gascall Limited | Construction | 2004 |
| Gascare (Manchester) Limited | Real estate | 2010 |
| Gascare Boiler Maintenance Ltd | Construction | 2025 |
| Gasco (Manchester) Ltd | Construction | 2024 |
| Gashi Limi Limited | Administrative & support | 2025 |
| Gasinvest Ltd | Mining & quarrying | 2025 |
| Gaskells Property Management Limited | Real estate | 2001 |
| Gaskell’S Gaff’S Ltd | Real estate | 2025 |
| Gaslight Build Ltd | Construction | 2026 |
| Gassed Apparel Ltd | Wholesale & retail | 2026 |
| Gastech Pro Ltd | Construction | 2025 |
| Gaston Dering Digital Marketing Ltd. | Other services | 2023 |
| Gastown Ltd | Hospitality | 2025 |
| Gastric Band Support Ltd | Health & social care | 2014 |
| Gasumms Ltd | Wholesale & retail | 2025 |
| Gate (Chester) Ltd | Hospitality | 2018 |
| Gate 54 Ltd | Information & communication | 2019 |
| Gate House North Ltd | Administrative & support | 2021 |
| Gate Invest Ltd | Financial services | 2021 |
| Gate of India (Cheadle Hulme) Ltd | Hospitality | 2025 |
| Gate Portal Ltd | Professional & scientific | 2024 |
| GATE3 Software Ltd | Information & communication | 2026 |
| Gatecrown Ventures Limited | Wholesale & retail | 2009 |
| Gatehill Security Services Limited | Administrative & support | 2026 |
| Gatehouse Logistics Limited | Transport & logistics | 2019 |
| Gatepark Manchester Limited | Transport & logistics | 1995 |
| Gateshead Cost Shop | Wholesale & retail | 2012 |
| Gateshead Kehilla Advertiser Ltd | Information & communication | 2015 |
| Gateshead Keren Chasanim Ltd | Financial services | 2021 |
| Gateshead Portfolio LP | | 2018 |
| Gateshead Supermarket Limited | Wholesale & retail | 2025 |
| Gateway Apartments Limited | Hospitality | 2013 |
| Gateway Bromborough Limited | Real estate | 2005 |
| Gateway Care Solutions Limited | Transport & logistics | 2025 |
| Gateway East Finance Limited | Construction | 2022 |
| Gateway Fundraising Ltd. | Administrative & support | 2014 |
| Gateway International Trading Limited | Extraterritorial | 2026 |
| Gateway Management Group Ltd | Wholesale & retail | 2016 |
| Gateway Motor Sales Ltd | Wholesale & retail | 2025 |
| Gateway Music Group Ltd | Information & communication | 2022 |
| Gateway Northern (CEF) Limited | Construction | 2026 |
| Gateway Outsource Solutions Limited | Administrative & support | 2015 |
| Gateway Talent Recruitment Ltd | Administrative & support | 2026 |
| Gateway Trading Ltd | Wholesale & retail | 2025 |
| Gatewayz Consultancy Ltd | Information & communication | 2023 |
| Gather and Grain CIC | Wholesale & retail | 2024 |
| Gather Insights Limited | Information & communication | 2016 |
| Gather Light Property Management Ltd | Real estate | 2026 |
| Gatherwell Ltd | Administrative & support | 2013 |