| Name/Location | County | Open | Close | Comment |
| GAINSBOROUGH, Blyton Carr, Gainsborough | Lincolnshire | 1998 | 2001 | Formerly Bigfoot Traditional Ales |
| Gale's | . | . | . | See George Gale |
| GARDEN BARBER, Hertford | Hertfordshire | 2001 | . | . |
| GARTON, Garton-on-the-Wolds, Driffield | E Yorkshire | 2001 | . | . |
| GATE, Southampton | Hampshire | 1983 | 1985 | Located at The Gate PH (Whitbread) |
| GATE ALE BREWHOUSE, Harrogate | N Yorkshire | 1984 | 1987 | Located at The New Inn (Tetley) |
| Gate Inn | . | . | . | See Sawbridgeworth |
| Gate, The Lee | . | . | . | See Carr's Ales |
| George IV | . | . | . | See Lass o'Gowrie |
| George Beer & Rigden | . | . | . | See Fremlins, Faversham |
| GEORGE GALE, Horndean | Hampshire | 1847 | . | The Hampshire Brewery. IFBB Member |
| George Gale | . | . | . | See Gales |
| George Hotel | . | . | . | See Eccleshall |
| GEORGE WRIGHT, Rainford, St Helens | Merseyside | 2003 | . | . |
| Georges Brewery | . | . | . | See Courage Bristol |
| GIBBS MEW, Salisbury | Wiltshire | 1858 | 1997 | See also Badger |
| Gillfoot | . | . | . | See Sulwath |
| Glan yr Afon Inn | . | . | . | See Bradgy ty Crwr Glan yr Afon |
| GLASCHU, Glasgow | Strathclyde | 1994 | 1996 | . |
| GLASTONBURY ALES, Somerton | Somerset | 2002 | . | Plant ex Humpty Dumpty |
| Glenbrew | . | . | . | See Heather Ale. Glenbru? |
| Glenny | . | . | . | See Wychwood |
| GLENTWORTH, Skellow, Doncaster | S Yorkshire | 1996 | . | Plant ex Lastingham |
| Globe | . | . | . | See Black Fox |
| Globe Inn | . | . | . | See Five Towns |
| GLOSSOP, Hadfield, Glossop | Derbyshire | 2004 | 2004 | . |
| GLOUCESTER, Gloucester | Gloucestershire | 1983 | 1984 | Aka College Ales |
| Goacher | . | . | . | See P & D J Goacher |
| GODDARDS, Ryde | I O W | 1993 | . | . |
| GODSON FREEMAN & WILMOT, Bow | London E3 | 1977 | 1984 | Moved from Clapton 1978. See also Godson Chudley |
| GODSON-CHUDLEY, Bow | London E3 | 1984 | 1987 | Ex Godson site. Aka Black Horse |
| GOFF'S, Winchcombe | Gloucestershire | 1994 | . | Plant ex Nethergate |
| GOLCAR, Golcar, Huddersfield | W Yorkshire | 2001 | . | . |
| GOLDEN, Canvey Island | Essex | 1981 | 1985 | Located at The Waters Edge PH |
| Golden Fleece | . | . | . | See Newcastle Brewhouse |
| Golden Galleon, Seaford | . | . | . | See Cuckmere Haven |
| Golden Hill | . | . | . | See Exmoor |
| Golden Lion | . | . | . | See Leyburn |
| GOLDEN LION, Southwick | Hampshire | 1985 | 1985 | Aka Southwick Brewhouse |
| Golden Star | . | . | . | See Star |
| GOLDFINCH, Dorchester | Dorset | 1987 | . | Located at Tom Brown's PH (formerly Buffer's Inn) |
| GOLDTHORN, Wolverhampton | W Midlands | 2001 | 2004 | . |
| GOLIATH, Middlesbrough | N Yorkshire | 1979 | 1983 | Home-brew shop |
| Goodbody (Dorothy) | . | . | . | See Wye Valley |
| GOODMANHAM, Goodmanham | E Yorkshire | 2001 | . | Plant ex Weetwood. Located at The Goodmanham Arms PH. Change of ownership 2003 |
| GOOSE & FIRKIN, Southwark | London SE1 | 1979 | 1995 | The 1st Bruce Firkin. Formerly The Duke of York (Truman) |
| GOOSE EYE, Keighley | W Yorkshire | 1991 | . | Brewed at Laycock 78-82 & 83-88 |
| GORNAL HERITAGE ALES, Lower Gornal, Dudley | W Midlands | 1996 | 1996 | Aka The Fountain? See also Enville & Wye Valley |
| Graham Enterprises | . | . | . | See Clockwork |
| Graham's | . | . | . | See Blackmoor |
| GRAINSTORE, Oakham | Rutland | 1995 | . | Aka Davis'es. Contract brews for Steaming Billy |
| GRAND UNION, Hayes | Middlesex | 2002 | . | See also Old Kent |
| GRAY, Chelmsford | Essex | 1828 | 1974 | Pubs supplied by Greene King & Ridleys |
| GREAT GABLE, Wasdale Head | Cumbria | 2002 | . | Located at The Wasdale Head Inn |
| GREAT OAKLEY, ? | Northamptonshire | Unconfirmed | . | Source: Quaffale - Future Breweries |
| GREAT ORME, ? | North Wales? | Unconfirmed | . | Source: Quaffale - Future Breweries & see below |
| GREAT ORME, ? | North Wales? | Unconfirmed | . | Follow progress on their web site |
| GREEN DRAGON, Bungay | Suffolk | 1991 | . | . |
| Green Dragon, Evesham | . | . | . | See Evesham |
| GREEN JACK, Oulton Broad | Suffolk | 1993 | 2001 | Former Oulton Broad/Forbes site |
| GREEN JACK, Lowestoft | Suffolk | 2003 | . | Located at The Triangle Tavern |
| GREEN TYE, Green Tye, Much Hadham | Hertfordshire | 1999 | . | Located at The Prince of Wales PH |
| GREENE KING, Biggleswade | Bedfordshire | 1764 | 1996 | Ex Wells & Winch, acquired by Greene King 1961 |
| GREENE KING, Bury St Edmunds | Suffolk | 1799 | . | See also Greene King (Biggleswade), Rayments, Innuendo & Morland |
| GREENALLS, St Helens | Merseyside | 1762 | 1976 | . |
| GREENALLS, Warrington | Cheshire | 1787 | 1991 | See also Davenports, Groves & Whitnall, Shipstones, Simpkiss & Wem |
| GREENFIELD, Oldham | Gtr Manchester | 2002 | . | . |
| GREENWOODS, Wokingham | Berkshire | 1994 | 1997 | Plant ex Trough |
| Grey Horse | . | . | . | See Derwent Rose |
| GREYHOUND, Norton | Oxfordshire | 1981 | 1985 | See also Phillips |
| GREYHOUND, Streatham Common | London SW16 | 1984 | 1997 | A Clifton Inns (Watneys) micro brewery. Acquired by S&N 1993 |
| GRIBBLE INN, Oving, Chichester | W Sussex | 1991 | . | Plant ex Bosham. Also brewed 1987-89. Acquired by Badger 199?. Also brews King & Barnes Mild |
| Griffin Brewery | . | . | . | See Fuller Smith & Turner |
| Griffin Inn, Shustoke | . | . | . | See Church End |
| Griffin, Frome | . | . | . | See Milk Street |
| GRIMSDALES, Boughton Aluph, Ashford | Kent | No brewery | . | Beers brewed by Pilgrim & Thomas Hardy |
| Grinstede Brewery | . | . | . | See East Grinstead |
| Grinstede Brewery | . | . | . | See East Grinstead |
| GROVES & WHITNALL, Salford | Gtr Manchester | 1835 | 1972 | Acquired by Greenalls 1961 |
| GUERNSEY, St Peter Port, Guernsey | C I | 1856 | . | Owned by Jersey since 1988 |
| GUINNESS, Dublin | Ireland | ? | . | No Real Ale! |
| GUINNESS, Park Royal | London NW10 | 1936 | . | No Real Ale! |
| GWENT ALES, Pontypool | Gwent | 1981 | 1984 | See also Silverthorne |
| GWYNEDD, Gaerwen, Anglesey, Gwynedd | N W Wales | 1980 | 1984 | . |