| B & Q plc | Eastleigh |
| B6 Integrated Entertainment | London |
| BAA Ltd | London |
| Bacardi-Martini Ltd | Winchester |
| Badminton England | Milton Keynes |
| Badminton Scotland | Glasgow |
| BAE SYSTEMS PLC | Farnborough |
| Baker & McKenzie | London |
| Baker Tilly | London |
| Bakkavor | London |
| Balfour Beatty plc | London |
| Band & Brown | London |
| Bank of England | London |
| Bank of Ireland UKFS | Bristol |
| Barchester Healthcare Foundation | London |
| Barclaycard | Northampton |
| Barclays Bank Plc | London |
| Barcud Derwen Ltd | Cardiff |
| Barnsley Building Society | Barnsley |
| Barratt Homes Ltd | Coalville |
| Bartercard UK Ltd | Uxbridge |
| Basildon Chemical Co Ltd | Abingdon |
| Basketball Association of Wales | Cardiff |
| Basketball League Ltd | Leicester |
| basketballscotland | Edinburgh |
| Bath Ales | Bristol |
| Bauer Advertising | London |
| Baxters Food Group Ltd | Fochabers |
| Bayer Plc | Newbury |
| BBC British Broadcasting Corporation | London |
| BCE (Distributors) Ltd | Bristol |
| BDS Sponsorship Ltd | London |
| Beal Developments Ltd | Hull |
| Beam Global Spirits & Wine Ltd | Horsham |
| The Beaufort Polo Club | Tetbury |
| beCogent Ltd | Airdrie |
| Beiersdorf UK Ltd | London |
| Beko plc | Watford |
| Bel Lift Trucks Ltd | Newcastle |
| Belhaven Brewery Group Plc | Dunbar |
| Ben & Jerry Homemade Ltd | London |
| Ben Sherman | London |
| Benchmark Sport | London |
| Benfield Sports International | Richmond |
| Bennetts Insurance | Peterborough |
| Bergoni | Swansea |
| Beringer Blass Wine Estates Ltd | Twickenham |
| The Berkeley Group plc | Cobham |
| Bernard Matthews Ltd | Norwich |
| Bespak Europe Ltd | Hemel Hempstead |
| Bespoke Mortgages | London |
| Bet24 Ltd | London |
| Betfair | London |
| Betfred Ltd | Warrington |
| Betterview Windows & Conservatories Ltd | Wickford |
| BG Group | Reading |
| BiB Group Ltd | Darlington |
| Big Bear Ltd | Braunstone |
| Big Lottery Fund | London |
| Big Oxford Computer Company Ltd | Oxford |
| Birmingham International Airport | Birmingham |
| Birmingham Midshires | Wolverhampton |
| Bitopia | St Helens |
| Black & Decker Ltd | Slough |
| Black Sheep Brewery plc | Ripon |
| Blue Arrow | Banbury |
|
The Blue Cross | Burford |
| Blue Square Ltd | London |
| Bluestar Sport Ltd | London |
| bmi | Derby |
| BMW (UK) Ltd | Bracknell |
| The Body Shop International plc | Littlehampton |
| Bodycote International plc | Macclesfield |
| Bombardier Aerospace | Belfast |
| Bonar Yarns & Fabric Ltd | Dundee |
| Bondardo Comunicazione | 20121 Milan |
| The Bonham Group | London |
| Boodles | Liverpool |
| Book Marketing Society | London |
| Bookajet.com | Farnborough |
| Booker Cash & Carry Ltd | Wellingborough |
| Boots Group PLC | West Malling |
| Borders | London |
| Bottlegreen Drinks Co | Stroud |
| Boundary Sports Ltd | Birmingham |
| Bowden Land Ltd | Nottingham |
| Bowls England | Worthing |
| Boylesports | Dundalk |
| BP PLC | London |
| Brabners Chaffe Street | Manchester |
| Bradford & Bingley Plc | London |
| Bradfords Building Supplies Ltd | Yeovil |
| Bradstone | Ashbourne |
|
brandRapport Ltd | Guildford |
|
Break | Sheringham |
| Breitling UK Ltd | London |
| Bristol Trade Centre | Bristol |
| Brit Insurance Holdings Plc | London |
| Britannia Building Society | Leek |
| British & International Federation of Festivals for Music, Dance & Speech | Macclesfield |
| British Academy of Film & Television Arts (BAFTA) | London |
| British Aikido Board | Slough |
| British Airways Plc | West Drayton |
| British Amateur Rugby League Association (BARLA) | Huddersfield |
| British American Football Association (BAFA) | Stocksfield |
| British Arts Festivals Association (BAFA) | London |
| British Automobile Racing Club (BARC) | Andover |
| British Bakeries Ltd | Windsor |
| British Balloon & Airship Club (BBAC) | Chepstow |
| British Blind Sport (BBS) | Leamington Spa |
| British Bobsleigh Association (BBA) | Horsham |
| British Boxing Board of Control Ltd | Cardiff |
| British Canoe Union (BCU) | Nottingham |
| British Caving Association (BCA) | Buxton |
| The British Council | London |
| The British Council | Manchester |
| British Crown Green Bowling Association (BCGBA) | Wirral |
| British Curling Association | Stirling |
| British Cycling | Manchester |
| British Dance Council | London |
|
British Darts Organisation | London |
| British Deaf Sports Council | Ipswich |
| The British Dragon Boat Racing Association (BDA) | Southam |
| British Dressage | Kenilworth |
| British Equestrian Federation (BEF) | Kenilworth |
| British Eventing | Kenilworth |
| British Fencing Association | London |
|
British Film Institute (BFI) | London |
|
British Film Institute (BFI) | London |
|
British Film Institute (BFI) Film Festivals | London |
|
British Film Institute (BFI) Film Festivals | London |
| British Gas | Windsor |
| British Gliding Association (BGA) | Leicester |
| British Gymnastics | Newport |
| The British Hang Gliding & Paragliding Association (BHPA) | Leicester |
| The British Horse Society (BHS) | Kenilworth |
| British Horseracing Authority | London |
| British Horseracing Authority | London |
| British Isles Bowls Council | Leicester |
| British Judo Trust | Loughborough |
| British Karate Kyokushinkai | Chelmsford |
| British Korfball Association (BKA) | Maidstone |
| The British Land Company Plc | London |
| British Microlight Aircraft Association (BMAA) | Banbury |
| British Model Flying Association | Leicester |
| The British Motorcyclists' Federation (BMF) | Leicester |
| British Mountaineering Council (BMC) | Manchester |
| British Olympic Association (BOA) | London |
| British Orienteering Federation (BOF) | Matlock |
| British Parachute Association (BPA) | Leicester |
| British Paralympic Association (BPA) | London |
| British Schools' Cycling Association (BSCA) | Portsmouth |
| British Schools' Gymnastics Association (BSGA) | Uxbridge |
| British Schools' Judo | Loughborough |
| British Shooting | Woking |
| The British Show Jumping Association (BSJA) | Kenilworth |
| British Sky Broadcasting | Isleworth |
| British Speedway Promoters' Association (BSPA) | Rugby |
| British Sub Aqua Club (BSAC) | Ellesmere Port |
| British Sugar Foundation | Peterborough |
| British Superkart Association | Loughborough |
| British Surfing Association (BSA) | Newquay |
| British Swimming | Loughborough |
| British Tenpin Bowling Association (BTBA) | Ilford |
| British Triathlon Association (BTA) | Loughborough |
| British Universities & Colleges Sport (BUCS) | London |
| British Weight Lifters' Association Ltd (BWLA) | Newport |
| British Wrestling Association Ltd (BWA) | Chesterfield |
| Britvic Soft Drinks Ltd | Chelmsford |
| Brixton Plc | London |
| BRMB Radio | Birmingham |
| Brother International Europe Ltd | Manchester |
| Bruntwood Estates | Manchester |
| BSH Home Appliance Ltd | Milton Keynes |
| BSL | London |
| BT Group Plc | London |
| BT Scotland | Edinburgh |
| Budweiser Budvar UK Ltd | London |
| Buildbase Ltd | Cowley |
| BUPA | London |
| Burn Stewart Distillers PLC | East Kilbride |
| Burness | Edinburgh |
| Burton's Foods Ltd | St Albans |
| Business 2 Arts | Dublin 2 |
| Business and Arts South Africa (BASA) | Fordsburg 2033 |
| Business Committee for the Arts, Inc (BCA) | New York |
| Business in the Community (BITC) | London |
| Business in the Community, East Midlands | Nottingham |
| Business in the Community, East of England | Newmarket |
| Business in the Community, North East | Gateshead |
| Business in the Community, North West | Manchester |
| Business in the Community, Northern Ireland | Belfast |
| Business in the Community, Wales | Cardiff |
| Business in the Community, West Midlands | Birmingham |
| Business in the Community, West of England | Bristol |
| Business in the Community, Yorkshire and Humber Region | Pudsey |
|
Business Wire | London |
