- W R GRACE AND CO -CONNUnited States
- WACKER CHEMIE GMBHGermany
- WANBURY LTDIndia
- WANYANG HENGSHUI PHARMACEUTICAL CO LTDChina
- Warner Chilcott Company, LLCUnited States
- Wasdell Group LtdUnited Kingdom
- WATERSTONE PHARMACEUTICALS (HUBEI) CO LTDChina
- Watson Pharma Pvt LtdIndia
- WAVELENGTH ENTERPRISES LTDIsrael
- Wavelength PharmaceuticalsIsrael
- Waymade Healthcare PlcUnited Kingdom
- Weifa ASNorway
- WEIFANG SHENGTAI MEDICINE CO LTDChina
- WEIHAI DISU PHARMACEUTICAL CO LTDChina
- WENDENG JINYE INDUSTRIAL CO LTDChina
- WEPURE BIOTECH (GUANGZHOU) CO LTDChina
- WEST BENGAL CHEMICAL INDUSTRIES LTDIndia
- West Pharmaceutical Services, Inc.United States
- West-ward PharmaceuticalsUnited States
- Westair Gases & EquipmentUnited States
- Western Pharmaceuticals LLCUnited States
- Westfalen AgGermany
- WEYLCHEM ORGANICA GMBHGermany
- Wield Therapeutics, Inc.United States
- Wiewelhove GmbhGermany
- Windlas Biotech LimitedIndia
- Windsor-Essex Compassion Care CommunityCanada
- Windward BioUnited States
- Wisdom Pharmaceutical Co., LtdChina
- WOCKHARDT BIO AGFrance
- Wockhardt LimitedIndia
- Wockhardt UK LimitedUnited Kingdom
- Woikoski OyFinland
- Women's Health Laboratories, A Division Of Pathai DiagnosticsUnited States
- Woodstock Sterile SolutionsUnited States
- World Markets Sp. z o.o.Poland
- Worldwide Clinical Trials, Inc.United States
- WUHAN CALMLAND PHARMACEUTICALS CO LTDChina
- WUHAN CEKG TECH CO LTDChina
- Wuhan Grand Hoyo Co., Ltd.China
- WUHAN HZYMES BIOTECHNOLOGY CO LTDChina
- WUHAN OPTICS VALLEY VCANBIOPHARMA CO LTDChina
- Wuhan Rs Pharmaceuticals Co., LtdChina
- Wuhan Wuyao Pharmaceutical Co., Ltd.China
- Wuhan Yzy Biopharma Co., Ltd.China
- WUHU HUAREN SCIENCE AND TECHNOLOGY CO LTDChina
- WuXi AppTec Co., Ltd.China
- Wuxi Biologics (Cayman) Inc.China
- WUXI BIOLOGICS CO LTDChina
- WUXI DUONING BIOTECHNOLOGY CO LTDChina
- WUXI EXTPURE CO LTDChina
- Wuxi STA Pharmaceutical Co., Ltd.China
- WUXI XDC CO LTDChina
- WUYAN PHARMACEUTICAL TECHNOLOGY (SHANGHAI) CO LTDChina
- WX BioPharma Inc.United States
- Wyeth Lederle SpaItaly
- Wyeth Pharmaceuticals Inc.United States