W. Atlee Burpee & Co.
W. Legutko Przedsiebiorstwo Hodowlano-Nasienne
W. Neudorff GmbH KG
Wadiarabee Agricultural Supplies Import Company
Wageningen University
Washington Association of Wheat Growers
Washington State Crop Improvement Association
Washington State University
Washington Turfgrass Seed Commission
Washington University
Washington-North Idaho Seed Association
Watley Seed Co.
WeatherBill Inc.
Weaver Popcorn Company, Inc.
Weed Science Society of America (WSSA)
WeedSmart
Weizmann Institute
West Africa Centre for Crop Improvement (WACCI)
West Africa Seed Alliance (WASA)
West Africa Seed and Planting Material Network (WASNET)
West Asia and North Africa Seed Network (WANA Seed Network)
WestBred
Western Australia, Department of Primary Industries
Western Grains Research Foundation (WGRF)
Western Hybrid Seeds, Inc.
Western Oat Alliance
Western Seed Association (WSA)
Western Seed Company Limited
Westrup A/S
Wheat Genetic Improvement Network (WGIN)
Wheat Quality Australia Ltd. (WQA)
Wielkopolska Sugar Beet Breeding and Seed Production Company Ltd.
Wilbur-Ellis Company
Willhite Seed Inc.
Willhite Seed, Inc.
William Lawn Seed, Inc.
Williams Group Australia Pty. Ltd.
Willowood USA
Winfield Solutions, LLC
Winter Seed Ltda.
Wintersteiger AG
Wisconsin Crop Improvement Association
Wisdom Seeds
Wm. Larry Alexander, Attorney at Law, P.A.
Wolf Seeds do Brasil S/A
Wolf Trax, Inc.
WOOD-SS Radosina spol.s.r.o.
Woodheads Seeds Ltd
World Farmers Organization
World Food Prize
World Potato Congress
World Processing Tomato Council
Wrightson Seeds
Wuwei Ganxin Seeds Company Ltd
Wyffels Hybrids
Wynnstay Group plc
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