| Name/Location | County | Open | Close | Comment |
| 1066 Country Brewery | . | . | . | See White |
| 1648 BREWING, East Hoathly, Lewes | E Sussex | 2004 | . | Located at The Kings Head PH |
| 3 RIVERS BREWING, Stockport | Gtr Manchester | 2003 | . | Formerly Three Rivers |
| Abbey Brewery | . | . | . | See Younger |
| ABBEY, Retford | Nottinghamshire | 1982 | 1985 | Also brewed at Stainton, S Yorkshire 1981-2. Plant sold to Wye Valley |
| ABBEY ALES, Bath | Somerset | 1997 | . | . |
| ABBEY BELLS, Hirst Courtney, Selby | N Yorkshire | 2002 | . | . |
| ABBEYDALE, Sheffield | S Yorkshire | 1996 | . | Plant ex Leaking Boot. Also brews Beer Works Sheffield brands |
| ABEL BROWN'S, Stotfold | Bedfordshire | 1995 | 1997 | Located at The Stag Tavern |
| ABERDEEN ALES, Alford | Aberdeenshire | 1982 | 1986 | Devanha Brewery |
| ABERDEENSHIRE, Ellon | Aberdeenshire | 1995 | 1997 | . |
| ABERYSTWYTH ALES, Llanrhystud | Cardiganshire | 1994 | 1996 | . |
| ABINGTON PARK, Northampton | Northamptonshire | 1984 | 1997 | Clifton Inns (Watneys) pub brewery. Ex Chef & Brewer. Acquired by S&N (Trent Inns) 1993 |
| ABRAHAM THOMPSON, Barrow-in-Furness | Cumbria | 2004 | . | . |
| ACORN, Wombwell, Barnsley | S Yorkshire | 2003 | . | Plant ex Forester & Firkin and Blackpool |
| ADKIN, Wantage | Oxfordshire | 2007 | . | . |
| ADNAMS, Southwold | Suffolk | 1872 | . | Sole Bay Brewery. Site recorded as brewing since 1343. IFBB Member |
| ADUR, Steyning | W Sussex | 2008 | . | . |
| AFAN, Port Talbot | Glamorgan | 1982 | 1984 | . |
| AIREDALE, Castleford | W Yorkshire | 1997? | 1998? | Did it brew commercially? |
| Albert Inn | . | . | . | See Bridgetown |
| Albion Brewery | . | . | . | See Oldham |
| Albion Brewery | . | . | . | See Watneys, Whitechapel |
| ALCAZAR, Old Basford | Nottinghamshire | 1999 | . | Formerly Fiddlers ales. Located at The Fox & Crown PH |
| ALCHEMY, Hersham | Surrey | 1998 | 2001 | Plant ex Mordue |
| ALDCHLAPPIE, Kirkmichael | Perthshire | 1996 | 2000 | Located at The Aldchlappie Hotel. Malt extract beers |
| ALE HOUSE, Leeds | W Yorkshire | 1987 | 1994 | Off licence brewery. Plant sold to Brewlab |
| Ale Wagon | . | . | . | See Hoskins |
| ALEHOUSE, St Albans | Hertfordshire | 2006 | . | Located at The Farmers Arms PH - former Verulam site/plant |
| ALES OF KENT, Boxley, Maidstone | Kent | 1999 | 2002 | Moved from Chatham 2000. Plant sold to Burrington. See also Four Alls |
| ALES OF SCILLY, St Mary's | Isles of Scilly | 2001 | . | . |
| ALEWIFE, Starston, Harleston | Norfolk | 2000 | 2004 | Mainly bottle conditioned |
| Alexandra | . | . | . | See Becketts, Portslade |
| Alexandra Arms, Kettering | . | . | . | See Nobby's |
| ALEXANDRA ARMS, Rugby | 2006 | . | . | Shares plant with Atomic at The Alexandra Arms PH |
| Alexandra Arms, Rugby | 2006 | . | . | See Atomic & Alexandra Arms |
| ALFORD ARMS, Frithsden | Hertfordshire | 1993 | 1995 | Located at The Alford Arms (Whitbread). Also brewed 81-83 |
| ALICE, Inverness | Inverness-shire | 1983 | 1987 | Plant shipped to the USA |
| ALL GATES, Wigan | Gtr Manchester | 2006 | . | . |
| ALL NATIONS, Madeley | Shropshire | 1789 | 2000 | Aka Mrs Lewis's. One of only 4 brewpubs in 1971. See also Worfield |
| All Saints Brewery | . | . | . | See Melbourn Brothers |
| ALLENDALE, Allendale, Hexham | Northumberland | 2006 | . | . |
| Alloa Brewery | . | . | . | See Arrol |
| ALLSOPP, Burton-upon-Trent | Staffordshire | 1994 | 1998 | Micro brewery within Ind Coope. Aka Samuel Allsoppp. Site sold to Bass |
| ALNWICK, Alnwick | Northumberland | No brewery | . | Contract brewed by Daleside |
| ALTRINGHAM, Altringham | Gtr Manchester | 1999 | 2004? | Located at The Old Market Tavern. Aka Cheshire Cat Ales |
| AMBER ALES, Ripley | Derbyshire | 2006 | . | . |
| AN TEALLACH ALE Co, Dundonnell, Garve | Ross-shire | 2003 | . | Brewed by Atlas 2002-3 |
| Anchor Brewery, Horsleydown | . | . | . | See Courage |
| Anchor Brewery, Mile End | . | . | . | See Charrington |
| ANCIENT DRUIDS, Cambridge | Cambridgeshire | 1984 | 1996 | Owned by Wells. Plant moved to Cox's Yard |
| ANDWELL, North Warnborough | Hampshire | Planned | . | Source: Quaffale |
| Anglesey | . | . | . | See Ynys Mon |
| ANGLO DUTCH, Dewsbury | W Yorkshire | 2000 | . | Plant ex Rat & Ratchet |
| Ann Street | . | . | . | See Jersey |
| ANSELLS, Birmingham | W Midlands | 1882 | 1981 | Merged with Ind Coope & Tetley Walker to form Allied Breweries |
| Anvil Brewery | . | . | . | See Hydes |
| APPLEBY NEW, Appleby in Westmorland | Cumbria | 1979 | 1980 | See also Westmorland |
| APPLEFORD, Brightwell-cum-Sotwell, Wallingford | Oxfordshire | 2006 | . | . |
| Arbennig o Geredigion | . | . | . | Aka Bragwr Arbennig o Geredigion. See Ceredigion |
| ARBOR ALES, Kingswood, Bristol | Gloucestershire | 2007 | . | Moved from The Old Tavern, Bristol 2008 |
| ARCHERS, Swindon | Wiltshire | 1979 | . | Moved 1996. Owned by Burns Leisure 1999-2001 |
| ARGYLE, Leith, Edinburgh | Midlothian | 1985 | 1986 | Plant & site ex Leith |
| ARKELL'S, Swindon | Wiltshire | 1843 | . | IFBB Member |
| ARRAN, Brodick, Isle of Arran | Bute | 2000 | . | Plant ex Tipsy Toad Town House, Jersey. Aka Isle of Arran |
| ARROL, Alloa | Clackmannanshire | 1866 | 1998 | Alloa Brewery. Acquired by Samuel Allsopp (Tetleys) 1930 |
| ARROW, Kington | Herefordshire | 2007 | . | Located at The Wine Vaults |
| ART BREW BARN, Chideock, Bridport | Dorset | 2008 | . | . |
| ARUNDEL, Arundel | W Sussex | 1992 | . | Plant ex Woods. Ownership change 1998. Site/plant also used by Weltons 2000 |
| ASCOT ALES, Camberley | Surrey | 2007 | . | . |
| ASH VINE, Frome | Somerset | 1987 | 2000 | Moved from Wellington 1989 & from the White Hart, Trudoxhill 1997. Also brewed for Quality Cask Ales. See also Kestrel & Heritage Ales |
| ASHFORD, Ashford | Kent | 1983 | 1985 | Same ownership as Kentish Ales |
| ASHOVER, Ashover, Chesterfield | Derbyshire | 2007 | . | Plant ex Fantasy |
| ASHURSTWOOD, East Grinstead | W Sussex | 1983 | 1988 | Located at The Threee Crowns (Watneys/Phoenix) |
| Aspinalls | . | . | . | See Cambrinus |
| ASTON MANOR, Birmingham | W Midlands | 1983 | . | Bottled cider specialists. No real ale since 1996. See also Highgate |
| ATLANTIC, Treisaac, Newquay | Cornwall | 2005 | . | Organic (mainly bottle conditioned) beers |
| Atlas | . | . | . | See Preston |
| ATLAS, Kinlochleven | Argyllshire | 2002 | . | Plant ex Flag & Firkin, Watford. Formed Highlands & Islands Breweries with Atlas 2004. Acquired by Sinclair Breweries 2006 |
| ATLAS MILL, Brighouse | W Yorkshire | 2007 | . | . |
| ATOMIC, Rugby | Warwickshire | 2006 | . | Located at The Alexandra Arms PH which also uses the plant as Alexandra Ales |
| AVIEMORE, Aviemore | Inverness-shire | 1997 | 2001 | See Cairngorm |
| AVON, Bristol | Gloucestershire | 2008 | . | . |
| AXE VALE, Colyton | Devon | 1983 | 1986 | . |
| AXMINSTER, Axminster | Devon | 1988 | 1989 | Plant ex Hardington (Glous) |
| AYRSHIRE, Stevenston | Ayrshire | 1981 | 1982 | . |