Click place name to go to the list of private investigators operating in that area.
- Banbury
- Barnet
- Barnsley
- Barnstaple
- Barry
- Basildon
- Basingstoke
- Bath
- Bedford
- Bedfordshire
- Berkshire
- Beverley
- Bexhill
- Bexley
- Bicester
- Bideford
- Billericay
- Birkenhead
- Birmingham, Central
- Birmingham, South East
- Birmingham, South West
- Bishop Auckland
- Blackburn
- Blackpool
- Bletchley
- Blyth
- Bognor Regis
- Bolton
- Bootle
- Borehamwood
- Boston
- Bournemouth
- Bracknell
- Bradford
- Braintree
- Brentwood
- Bridgend
- Bridgwater
- Bridlington
- Brighouse
- Brighton
- Bristol
- Broadstairs
- Bromley
- Bromsgrove
- Buckinghamshire
- Burgess Hill
- Burnley
- Burton upon Trent
- Bury
- Byfleet