- Santander - BALLYMENA
- Santander - BISHOPS STORTFORD
- Santander - BLABY
- Santander - BLUEWATER
- Santander - BOSTON
- Santander - BURY ST EDMUNDS
- Santander - Bacup
- Santander - Baildon
- Santander - Balham
- Santander - Ballymoney
- Santander - Banbridge
- Santander - Banbury
- Santander - Bangor, 236, High Street
- Santander - Bangor, 64, Main Street
- Santander - Bangor, Bangor Library, College Road
- Santander - Banstead
- Santander - Barking
- Santander - Barkingside
- Santander - Barnet
- Santander - Barnsley
- Santander - Barnstaple
- Santander - Barrow-in-Furness
- Santander - Barry
- Santander - Basildon
- Santander - Basingstoke
- Santander - Bath, 42, Milsom Street
- Santander - Bath, 6, Bath Street
- Santander - Bath, Room 231 Level 2, Wessex Hse, University of Bath
- Santander - Bathgate
- Santander - Batley
- Santander - Beckenham
- Santander - Becontree
- Santander - Bedford, 35-37, Midland Rd
- Santander - Bedford, 9, Church Arcade
- Santander - Beeston
- Santander - Belfast, 1-3, Wellington Place
- Santander - Belfast, 6, Royal Avenue
- Santander - Belfast, Ulster University Branch, 25-51 York street
- Santander - Benfleet
- Santander - Berkhamsted
- Santander - Bermondsey
- Santander - Berwick-upon-Tweed
- Santander - Bethnal Green
- Santander - Beverley
- Santander - Bexhill-on-Sea
- Santander - Bexleyheath
- Santander - Bicester
- Santander - Bideford
- Santander - Billericay
- Santander - Bingley
- Santander - Birkdale
- Santander - Birkenhead
- Santander - Birmingham, 112, High Street, Erdington
- Santander - Birmingham, 156, Broad Street, Edgbaston
- Santander - Birmingham, 161-163, High Street, Kings Heath
- Santander - Birmingham, Room MBG17, Aston Triangle
- Santander - Birmingham, Store 139, Upper Mall, Bullring Shopping Centre
- Santander - Birmingham, 25, Union Street
- Santander - Birstall
- Santander - Bishop Auckland
- Santander - Blackburn
- Santander - Blackpool
- Santander - Blackwood
- Santander - Bletchley
- Santander - Blyth
- Santander - Bognor Regis
- Santander - Bolton
- Santander - Bootle
- Santander - Borehamwood
- Santander - Boscombe
- Santander - Bournemouth, 43-45, Commercial Road
- Santander - Bracknell
- Santander - Bradford
- Santander - Braintree
- Santander - Bramhall
- Santander - Brechin
- Santander - Brecon
- Santander - Brent Cross
- Santander - Brentwood
- Santander - Bridgend
- Santander - Bridgwater
- Santander - Bridport
- Santander - Brighouse
- Santander - Brighton, 16, London Road
- Santander - Brighton, 206, Western Road
- Santander - Brighton, Santander, Cockcroft Building,
- Santander - Bristol, 107, Whiteladies Road, Clifton
- Santander - Bristol, 107, Whiteladies Road, Clifton
- Santander - Bristol, 7-13, Merchant Street
- Santander - Bristol, 95, East Street, Bedminster
- Santander - Brixton
- Santander - Broadstone
- Santander - Bromley, 15-16, Market Square
- Santander - Bromley, 260, The Glades Shopping Centre
- Santander - Bromsgrove
- Santander - Buckingham
- Santander - Builth Wells
- Santander - Burgess Hill, 25, Church Road
- Santander - Burgess Hill, 33, Church Road
- Santander - Burnley, 96, St James Street
- Santander - Burnt Oak
- Santander - Burton upon Trent
- Santander - Bury
- Santander - Buxton