| | PR Agency Name | Location |  |  |  |  |
 | Saffron Communications Limited | .14-15 Jackson's Way
Fowlmere
ROYSTON
Herts [Cambridgeshire] [East Anglia] [England] | |  | |  |
 | Saffron Public Relations | .Waverley House, 7-12 Noel Street, Soho, London
| | | | |
 | Safiso | .Southbank House
Black Prince Road
London [Greater London] [South East] [England] | | | |  |
 | Sage Partnership | .SPo Box 7741, Hungerford, Berkshire [Berkshire] [South East] [England] | 1 |  | | |
 | Sainted PR | .Unit 17 Shaftesbury Centre, 85 Barlby Rd, London [Greater London] [South East] [England] | |  | | |
 | Salient Communications Ltd | .Windy Ridge Burdens Heath,Bucklebury,Reading,Berkshire [Berkshire] [South East] [England] | | | | |
 | Salisbury Communications | .5 Rose Croft, Kenilworth, Warwickshire [Warwickshire] [West Midlands] [England] | | | | |
 | Salix Consulting | .First Floor, Willow House
3 Station Parade, London [Greater London] [South East] [England] | |  | | |
 | Sally Edwards Marketing Communications | .112, Tanworth Lane
Shirley
Solihull
West Midlands [West Midlands] [West Midlands] [England] | | | |  |
 | Sally Goodsell International Marketing | .The Garden House, 132 Alderney Street, London
| |  | | |
 | Sally Keith in her own write | .Oaklea, 7 The Dell,
Fulbeck, Morpeth
Northumberland
| |  | |  |
 | Sally Kemp PR | .46 Brook Road South
Brentford
Middlesex [Greater London] [South East] [England] | | | |  |
 | Salt and Pepper PR | .13 Warden Road
Ickwell
Biggleswade
Bedfordshire [Bedfordshire] [South East] [England] | |  | |  |
 | Salt Ltd | .Park House, 14 Northfields, London. [Greater London] [South East] [England] | | | | |
 | Saltmarsh Partnership | .Unit D, 25 Copperfield Street, London [Greater London] [South East] [England] | | | | |
 | Saltmarsh PR | .The Copperfields, 25 Copperfield Street, London [Greater London] [South East] [England] | |  | | |
 | Saltwater Communications Ltd | .22 Strand Street, Poole [Poole] [South East] [England] | | | | |
 | Saltwater Public Relations | .Limosa House
22 Strand Street
Poole [Poole] [South East] [England] | |  | |  |
 | Sam Forrest PR | .The White House, 32 Thornton Hill, Wimbledon, London [Greater London] [South East] [England] | |  |  | |
 | Sam Luckin Associates | .4 Huggens Coll, College Road, Northfleet, Gravesend, Kent [Kent] [South East] [England] | | | | |