| Greytail Ltd | Biggleswade | 2022 |
| Greywood Leisure Ltd | Newton Aycliffe | 2025 |
| Greyworld Limited | London | 1996 |
| Grfc - Rugby Limited | Gravesend | 2016 |
| Grfc - Trading Limited | Gravesend | 2016 |
| Grfx Gaming Ltd | London | 2016 |
| Grice Brothers Media Limited | Rochester | 2022 |
| Gricind Limited | London | 1975 |
| Grid Finder Limited | Newcastle Upon Tyne | 2021 |
| Grid Gym Collective Ltd | Lincoln | 2021 |
| Grid Performance Ltd | Rugby | 2026 |
| Gridline Racing Limited | Lincoln | 2006 |
| Gridnev Arts Limited | Aylesbury | 2001 |
| Gridrival UK Limited | London | 2021 |
| Grids Basketball Limited | Sutton | 2013 |
| Gridshark Ltd | Wymondham | 2023 |
| Grierson Galleries Limited | Cranbrook | 2016 |
| Griff Preservation Trust | Coventry | 2015 |
| Griff Strings Ltd | Harrow | 2026 |
| Griffemere Production Services Limited | Warrington | 2025 |
| Griffen Fitness Limited | Edinburgh | 2009 |
| Griffin Artwork Limited | Clevedon | 2006 |
| Griffin Fireworks Limited | Heathfield | 2026 |
| Griffin Historical Limited | Haywards Heath | 2007 |
| Griffin Park Stadium Limited | Brentford | 1901 |
| Griffin Sport & Leisure Ltd | Liverpool | 2026 |
| Griffin Sports Ltd | Maidenhead | 2015 |
| Griffin Strength Gym S.C Ltd | Warrington | 2026 |
| Griffin Video Communications Ltd | Telford | 1977 |
| Griffiths Equestrian Limited | Salisbury | 2006 |
| Griffiths Eventing Ltd | Salisbury | 2026 |
| Griffon International Limited | Abingdon | 2003 |
| Griffon Merlin Ltd | Salisbury | 2004 |
| Grifter KID Limited | London | 2011 |
| GRIGG87 Limited | Roehampton | 2015 |
| Griib Design Limited | Norwich | 2005 |
| Grill N Chill Events Ltd | Petworth | 2014 |
| Grim Dark C.I.C. | Abingdon | 2024 |
| Grim Reaper Arts Limited | Fraserburgh | 2023 |
| Grim UP North Ltd | Durham | 2016 |
| Grim's Dyke Golf Club Limited(The) | Middlesex | 1910 |
| Grimepool Limited | High Wycombe | 2009 |
| Grimethorpe Colliery Band Limited | Barnsley | 2007 |
| Grimey Kicks Ltd | London | 2024 |
| Grimley Oval Raceway Ltd | Gloucester | 2014 |
| Grimm Gallery Limited | London | 2022 |
| Grims Functional Fitness and Strength Centre Ltd | Grimsby | 2022 |
| Grimsby Amateur Boxing Club Limited | Grimsby | 2015 |
| Grimsby and Cleethorpes Amateur Operatic Society | Cleethorpes | 1996 |
| Grimsby and Cleethorpes Yacht Club Limited | Grimsby | 1957 |
| Grimsby and District Junior Snooker Academy CIC | Grimsby | 2025 |
| Grimsby Borough FC Ltd | Cleethorpes | 2024 |
| Grimsby Central Hall Trust | Grimsby | 2004 |
| Grimsby Freestyle Kickboxing Club Ltd | Grimsby | 2022 |
| Grimsby Golf Centre Ltd | Tenterden | 2001 |
| Grimsby Golf Club Limited | Nort East Lincolnshire | 2002 |
| Grimsby Golf Club Trading Limited | Grimsby | 2016 |
| Grimsby Gymnastics Club Limited | Grimsby | 2020 |
| Grimsby Ice Rink | Grimsby | 2017 |
| Grimsby Netball Club Limited | Grimsby | 2023 |
| Grimsby Tennis Centre Limited | Grimsby | 2024 |
| Grimsby Town Cricket Club | Grimsby | 2014 |
| Grimsby Town Foundation | North East Lincolnshire | 2008 |
| Grimsby Twist & Flip Gymnastics Academy Ltd | Grimsby | 2016 |
| Grimsby United Football Club Ltd | Grimsby | 2025 |
| Grimsby Youth Zone | Grimsby | 2019 |
| Grimsley Inc. Limited | Leeds | 2025 |
| Grimsthorpe & Drummond Castle Enterprises Limited | Bourne | 2019 |
| Grimsthorpe Shoot Limited | Bourne | 2002 |
| Grimston Park Shoot Limited | Leeds | 2021 |
| Grimwood Properties Limited | West Horsley Leatherhead | 1953 |
| Grimwood Racing Limited | Cheadle | 2020 |
| Grin & Bear Ltd | London | 2014 |
| Grin and Barrett Limited | London | 2025 |
| Grind & Develop Coaching Ltd | Dagenham | 2025 |
| Grind Dont Stop Records Limited | Sheffield | 2020 |
| Grind Sports Agency Ltd | Aldershot | 2019 |
| Grindco 571 Limited | Stoke-On-Trent | 2010 |
| Grindhouse Ltd | Farnborough | 2025 |
| Grindlay Street Production Services Ltd | Edinburgh | 2015 |
| Grindleton Pavilion Limited | Clitheroe | 2015 |
| Grindon Gymnastics Club Community Interest Company | Houghton Le Spring | 2019 |
| Grindy Ltd | London | 2022 |
| Griot Haus Ltd | London | 2024 |
| Grip Pilates Ltd | Solihull | 2025 |
| Grip Sports Limited | Usk | 2025 |
| Grip Sports Management Limited | Leamington Spa | 2021 |
| Grip Studio Ltd | Slough | 2026 |
| Grip-Uk Ltd | Liverpool | 2010 |
| Gripgi Limited | Blisworth | 2023 |
| Griphindaw Ltd | Abingdon | 2021 |
| Griphouse Scotland Limited | Glasgow | 2011 |
| Gripping Events Ltd | Cockermouth | 2018 |
| Gripping Theatre Productions Ltd | Portishead | 2005 |
| Gripstone Limited | Leeds | 2015 |
| Gris Gris Limited | Sheffield | 2018 |
| Griswold Entertainments Limited | Wolverhampton | 2025 |
| Grit - Fitness & Nutrition Limited | Barnsley | 2018 |
| Grit and Glory Ltd | Leigh | 2024 |
| Grit and Grace Ltd | London | 2026 |