- W B Saunders Co
- W. H. Freeman
- W. W. Norton & Company
- Wadsworth Pub Co
- Waterford Pr
- Weekly Reader Early Learning
- Weekly Reader Leveled Readers
- Weimarer Schiller-Presse
- Westview Press
- Wiley VCH
- Wiley-Blackwell
- Wiley-Blackwell (an imprint of John Wiley & Sons L
- Wiley–Blackwell
- William Andrew Publishing
- Williams & Wilkins
- Wit Pr/Computational Mechanics
- Woodhead Publishing
- Woodland Pub
- Workman Pub Co
- World Bank
- World Health Organisation
- World Health Organization
- Worth Pub
- Wysteria Ltd
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