Publishers
- Whitbread & Co. Ltd. 1
- Whitcombe and Tombs 1
- White Boar Publishing 1
- White Lion Publishers Limited 6
- White Mane Books 1
- White Mouse 2
- White Owl 1
- Whitechapel Art Gallery 1
- Whiting & Co. 1
- Whitman Publishing Company 10
- Whitney Library Of Design 1
- Whittaker & Co. 3
- Whittet Books 1
- Whittles Publishing 2
- Whsmith 1
- Wicwas Press 2
- Wild Dog Press 1
- Wild Swan Publications 7
- Wildearth 2
- Wildfowl & Wetlands Trust 1
- Wilding & Son Ltd. 6
- Wildwood House Ltd. 1
- Wiley 3
- Wiley-Academy 1
- Wiley-Interscience 2
- Wilhelm Ernst & Sohn 2
- William and Robert Chambers 4
- William Andrews & Co. 3
- William Bailey 1
- William Blackwood 1
- William Blackwood and Sons 5
- William Brendon And Son 1
- William Briggs 1
- William Brown 1
- William Clowes & Sons Ltd. 5
- William Collins 10
- William Collins Sons & Co. Ltd. 6
- William Darton And Son 1
- William Edwin Rudge 1
- William Graham 1
- William Heinemann 40
- William Heinemann Ltd. 37
- William Hunter 1
- William J. Hay 1
- William Jackson (Books) Ltd. 1
- William Kidd & Sons Ltd. 1
- William Kimber 17
- William Kimber & Co. Limited 2
- William Kimberley Limited 1
- William Lewis 6
- William Lewis(Printers)Ltd. 2
- William Macintosh 2
- William Mackenzie 2
- William Morrow 2
- William Morrow & Company 1
- William Morrow & Company Inc 2
- William P. Nimmo 1
- William Pamplin 1
- William Pickering 4
- William Pollard 1
- William Pollard & Co. Limited 1
- William R. Jenkins Company 1
- William Rees 1
- William Reeves 1
- William Satchell & Co. 1
- William Tegg 1
- Willow Books 1
- Willow Bookscreek Press 1
- Willowkill Press 1
- Wills & Hepworth Ltd. 64
- Wilton 65 1
- Wiltshire Archaeological and Natural History Society 1
- Winchester Press 2
- Windgather Press Ltd. 5
- Windrow & Greene 3
- Windsor Publications Inc. 1
- Windward 2
- Wingham Press 2
- Wisdom Tree 1
- Witness Books 1
- Wm. Byles 1
- Wm. Collins Sons & Co. Ltd. 7
- Wm. Dawson & Sons Ltd. 1
- Wm. May & Co. Ltd. 1
- Wolf Creek Books Inc 1
- Wolfhound Press 1
- Wonder Books 1
- Wonderdog Publications 1
- Woolhope Naturalists' Field Club 1
- Worcestershire Archaeological Society 1
- World Distributors (manchester) Ltd 1
- World Distributors Ltd. 7
- World Health Organization 1
- World International 2
- World International Publisher 2
- World International Publishing Limited. 1
- World Scientific 3
- World Ship Society 4
- World War II Wreckology Group 1
- World's Work 4