Publishers
- 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
- World's Work Ltd. 16
- Worpsweder Verlag 1
- Wrens Park Publishing 4
- Wright's Coal Tar Soap 1
- Wrightway Publishing Limited 1
- Wroughton History Group 5
- Wydawnictwo Morskie 1
- Wye Angling Publications 1
- Wygesty Publishing 1
- Wykeham Publications 1