Argentinien
Jorge Anibal Costanzi
Argenplugs S/A
Buenos Aires
Brasilien
Floricultura Ursula Ltda.
Sementes van Leeuwen Ltda.
Rio Grande do Sul
Chile
Equador
Cem Seeds
Kanada
West Coast Seeds Ltd.
British Columbia
Halifax Seed Co., Inc.
Nova Scotia
Ball Superior
Jack van Klaveren, Ltd.
Ontario Seed Co., Ltd.
Otto Richter & Sons Ltd.
Stokes Seeds Ltd.
William Dam Seeds Ltd.
Ontario
Vesey's Seeds Ltd.
Prince Edward Island
Norseco S.E.C.
Quebec
Kolumbien
Guáqueta Trading Ltda. C.I.
Distrito Capital de Bogotá
Mexiko
Peru
Vereinigte Staaten
Lake Valley Seed Inc.
Colorado
Ball SB LC
Florida
Grow Hoss
Georgia
Plantation Products Inc.
Massachusetts
Bluebird Nursery Inc.
Nebraska
Burnett Bros. Inc.
Harris Seeds
Stokes Seeds Ltd.
New York
Territorial Seed Co.
Oregon
Henry F. Michell Co.
W. Atlee Burpee & Co.
Pennsylvania
GeoSeed
South Carolina
BFG Supply Co.
Virginia
Logan-Zenner Seeds Inc.
Osborne
Washington
J.W. Jung Seed Co.