| Name/Location | County | Open | Close | Comment |
| Lab | . | . | . | See Lowes Arms |
| Lade Inn | . | . | . | See Trossach Craft |
| Lake Lothing Brewery | . | . | . | See Oulton Ales |
| LAKELAND, Strawberry Bank | Cumbria | 1990 | 1997 | Located at The Masons Arms PH |
| Lamb Inn | . | . | . | See Silverthornes Gwent Ales |
| LANGTON, East Langton, Market Harborough | Leicestershire | 2000 | . | Located at The Bell Inn |
| LARKINS, Chiddingstone, Edenbridge | Kent | 1986 | . | Plant ex Kentish Ales. Moved 1989 |
| LASS o'GOWRIE, Manchester | Gtr Manchester | 1983 | 2003 | Whitbread pub brewery. Formerly George IV |
| LASTINGHAM, Pickering | N Yorkshire | 1993 | 1995 | . |
| LAWN, Winchester | Hampshire | 1982 | 1984 | Located at The Mash Tun PH. Owned by Ringwood |
| Lawns | . | . | . | See Privett? |
| LAZY CAT, Manchester | Gtr Manchester | Unconfirmed | . | Long term project. Source: Quaffale - Future Breweries |
| LEADMILL, Denby | Derbyshire | 1999 | . | Moved from Selston, Nottinghamshire 2001 |
| LEAKING BOOT, Grimsby | Lincolnshire | 1995 | 1996 | . |
| Leann an Eilien | . | . | . | See Isle of Skye |
| LEATHERBRITCHES, Fenny Bentley, Ashbourne | Derbyshire | 1994 | . | Located at The Bentley Brook Inn. Also brewed for Steamin' Billy |
| LEDBURY, Ledbury | Herefordshire | 1995 | 1999? | Located at The Royal Oak PH. Also a brew pub 1841-1921. Ownership change 1998. Ceased part 97/98. Ceased again? |
| LEEK, Cheddleton | Staffordshire | 2003 | . | Moved from Leek 2004 |
| LEEMING WATERS, Oxenhope | W Yorkshire | 2004 | . | . |
| LEES, Middleton Junction, Manchester | Gtr Manchester | 1828 | . | Aka J W Lees. IFBB Member |
| Leggers Inn | . | . | . | See Sunset Cider & Wine |
| LEICESTER, Syston | Leicestershire | 1983 | 1985 | Keg only |
| LEITH, Leith | Lothian | 1982 | 1984 | See also Argyle |
| LEITH HILL, Coldharbour, Dorking | Surrey | 1996 | . | Located at The Plough Inn |
| LEYBURN, Leyburn | N Yorkshire | 1984 | 1989 | Located at The Golden Lion PH. Moved from The Nelson Inn, Hampsthwaite 1994 |
| LEYDEN, Nangreaves, Bury | Gtr Manchester | 1999 | . | Located at The Lord Raglan PH |
| LEYLAND, Leyland | Lancashire | 1983 | 1985 | Located at The Brewing Up off-licence |
| LEYLAND, Wellingborough | Northamptonshire | 1996 | 1999 | Ex Nix Wincott/Nene Valley |
| LICHFIELD, Ingleby | Derbyshire | 1992 | 2001 | Moved from Lichfield 1998 to share site with John Thompson Inn. Contract brewed by Highgate & Tower? |
| LIDDINGTONS, Rugby | Warwickshire | 1983 | 1986 | Ex Litchborough Brands |
| LIDSTONES, Coltsfoot Green, Nr Newmarket | Suffolk | 1998 | 2003 | See also Wensleydale |
| LINFIT, Linthwaite, Huddersfield | W Yorkshire | 1982 | . | Located at The Sair Inn(a 19th c brewpub) |
| Lion Brewery | . | . | . | See Matthew Brown |
| Lion, Croydon | . | . | . | See Burkes |
| LIONS ORIGINAL BREWS, Burnley | Lancashire | 1991 | 1994 | Plant ex Big End. Aka Griffin |
| LITCHBOROUGH, Daventry | Northamptonshire | 1974 | 1983 | Moved from Litchborough 1980. Brands sold to Liddingtons |
| Little | . | . | . | See Sam Trueman |
| LITTLE AVENHAM, Preston | Lancashire | 1992 | 1997? | Moved 1995 |
| LITTON ALE, Litton, Skipton | N Yorkshire | 2003 | . | Located at The Queens Arms PH |
| LIVERPOOL, Liverpool | Merseyside | 1990 | 2004 | Located at The Brewery PH (formerly The Black Horse & Rainbow) |
| LIVERPOOL UNIVERSITY, Liverpool
| Merseyside | 2000 | 2004? | . |
| Llanteglos Brewery | . | . | . | See Pembrokeshire Own Ales |
| Lloyd & Trouncer | . | . | . | See City Arms |
| LLOYDS COUNTRY BEERS, Ingleby, Melbourne | Derbyshire | 1983 | 2002 | Shared site with John Thompson Brewery. Contract brewed by Tower & Belvoir? |
| LLOYDS, Newport | Gwent | 1895 | 1951? | Cambrian brewery, acquired by Ansells (Tetley) 1951 |
| LODDON, Dunsden Green, Reading | Oxfordshire | 2003 | . | . |
| London Beer Co | . | . | . | See Pitfield |
| London Inn | . | . | . | See Thompson's |
| Long Barn | . | . | . | See Stallion |
| LONGSTONE, Belford | Northumberland | 1991 | 1995 | Aka Darlings. Plant sold to Becketts |
| Lord Raglan | . | . | . | See Leyden |
| LORD RAGLAN, Cefn-Coed, Merthyr Tydfil | Glamorgan | 2000 | 2002 | . |
| Lorimer & Clark | . | . | . | See Caledonian |
| LOWER BRAILES, Lower Brailes | Warwickshire | Unconfirmed | . | Source: Quaffale - Future Breweries |
| LOWES ARMS, Denton | Gtr Manchester | 2001 | . | Located at The Lowes Arms PH. Aka The Lab |
| LOWESWATER, Loweswater, Cockermouth | Cumbria | 2003 | . | Located at The Kirkstile Inn. Plant ex Tirril |
| LUCIFER, Clifton, Bristol | Gloucestershire | 1993 | 1995 | Located at The Hope & Anchor PH. Restarting 2000? - See Hope & Anchor |
| LUGTON, Lugton, Ayrshire | Strathclyde | 1995 | 2000 | . |
| LUNDY, Lundy Island | Devon | 1994 | 1995 | Located at The Marisco Tavern. Also brewed 84-92 |
| Lytton Arms | . | . | . | See Millenium |