Wageningen University & Research

Washington State University

Weed Science Society of America (WSSA)

West Africa Centre for Crop Improvement (WACCI)

Western Alfalfa Seed Growers Association (WASGA)

Western Australia, Department of Primary Industries

Western Growers Association

Western Plant Health Association (WPHA)

Western Seed Association (WSA)

Whyte Hirschboeck Dudek S.C.

Wolf Trax, Inc.

World Farmers Organization

World Potato Congress

World Processing Tomato Council

World Vegetable Center