Publishers
- Warne 2
- Warren & Son 1
- Warren and Son Ltd. 1
- Warren Editions 1
- Warrillows Ltd. 2
- Warwickshire Publications 1
- Washington State University Press 1
- Waterfront 1
- Waterline 1
- Waterstone 1
- Waterton Publishing 1
- Watson-Gupthill Publications 2
- Wattle Books 1
- Watts & Co 1
- Wau Ecology Institute 1
- Waverley Book Company Ltd. 3
- Waverley Excursions Ltd 1
- Wayfarer Books 1
- Wayland Publishers 1
- Waynford Press Ltd. 3
- We Inc. 1
- Weathervane Books 2
- Webb & Bower 10
- Weekly Reader Books 1
- Wegweiser 1
- Weidenfeld and Nicolson 45
- Weldon 1
- Wells Gardner, Darton & Co. 43
- Wells Gardner, Darton & Co. Limited 14
- Wells Gardner, Darton & Co. Ltd. 39
- Wells Gardner, Darton And Co 2
- Welsh Arts Council 1
- Welsh Bibliographical Society 1
- Welsh Council 1
- Welsh Gazette 2
- Welsh Outlook Press 1
- Wendy Webb Books 1
- Wensum Books 1
- Werner Laurie 12
- Werner Shaw Ltd. 1
- Wesleyan Conference Office 2
- Wesleyan Methodist Sunday School Union 1
- Wesleyan University Press 1
- Wessex Books 1
- West Col Productions 1
- West Glamorgan County Archive Service 2
- West Midland Bird Club 2
- West View Publications 1
- West, Newman & Co. 1
- Westarp Wissenschaften 1
- Westaway 1
- Westbridge Books 1
- Westbury Publishing 2
- Western Australian Museum 1
- Western Canadian Distributors Ltd. 1
- Western Mail 3
- Western Mail And Echo Limited 3
- Western Publishing Company, Inc. 1
- Westerners Publications Ltd. 3
- Westerway Books 1
- Westholme Publishing 1
- Westminster Press Ltd. 2
- Westmorland Gazette 5
- WH Smith 1
- Wharncliffe Books 5
- Wharncliffe Publishing Limited 3
- Wharncliffe Transport 1
- Wheaton 1
- Wheaton Of Exeter 1
- Wheelhouse Books 2
- Wheldon & Wesley 1
- Whitbread & Co. Ltd. 1
- Whitby Press 1
- Whitcombe and Tombs 1
- White Boar Publishing 1
- White Crescent Press 2
- White Lion Books 5
- White Lion Publishers Limited 5
- White Mane Books 1
- White Mouse 2
- Whitebrook Conservation Group 1
- Whiting & Co. 2
- Whiting & Wheaton 1
- Whitman 1
- Whitman Publishing Company 10
- Whitney Library Of Design 1
- Whittaker & Co. 6
- Whittaker, Treacher And Arnot 1
- Whittet Books 1
- Whittet Books Ltd. 1
- Whittles Publishing 3
- Wicwas Press 1
- Wild Swan Publications 12
- Wildearth 1
- Wilderness Adventures Press, Inc. 1
- Wilding & Son Ltd. 7
- Wildwood House 1
- Wiley 3
- Wiley-Academy 1
- Wiley-Blackwell 1