Babergh District Council
Ballymena Borough Council
Ballymoney Borough Council
Banbridge District Council
Barking and Dagenham London Borough Council - (Multiple Offices)
Barnet London Borough Council - (Multiple Offices)
Barnsley Metropolitan Borough Council
Barrow-in-Furness Borough Council
Basildon District Council
Basingstoke and Deane Borough Council
Bassetlaw District Council - (Multiple Offices)
Bath and North East Somerset Council
Bedford Borough Council
Bedfordshire County Council
Belfast City Council
Berwick-upon-Tweed Borough Council
Bexley Council - (Multiple Offices)
Biotechnology and Biological Sciences Research Council - (Multiple Offices)
Birmingham City Council
Blaby District Council
Blackburn with Darwen Borough Council
Blackpool Borough Council - (Multiple Offices)
Blaenau Gwent County Borough Council
Blyth Valley Borough Council
Bolsover District Council
Bolton Metropolitan Borough Council - (Multiple Offices)
Border and Immigration Agency
Boston Borough Council
Bournemouth Borough Council
Bracknell Forest Council - (Multiple Offices)
Bradford Metropolitan District Council
Braintree District Council
Breckland Council
Brent Council - (Multiple Offices)
Brentwood Borough Council
Bridgend County Borough Council
Bridgnorth District Council
Brighton and Hove City Council - (Multiple Offices)
Bristol City Council
British Forces Post Office
British Potato Council - (Multiple Offices)
British Waterways
British Waterways Central Shires
British Waterways East Midlands
British Waterways London
British Waterways North West
British Waterways Scotland
British Waterways South East
British Waterways Wales and Border Counties
British Waterways West Midlands
Broadland District Council
Bromsgrove District Council
Broxbourne Borough Council
Broxtowe Borough Council
Buckinghamshire County Council - (Multiple Offices)
Burnley Borough Council
Bury Metropolitan Borough Council