California
Ag Seeds Unlimited
Ahern International
Champion Seed Co.
Corona Seeds
Gowan Seed Co.
Keithly Williams Seeds
Lockhart Seeds, Inc.
Santa Maria Seeds Inc.
Select Seed of Arizona, Inc.
Snow Seed Co.
T.S. & L. Seed Co.
White Seed Co.

Colorado
Champion Seed Co.
Keithly Williams Seeds
Rocky Mountain Seed Co.

Georgia
Clifton Seed Co. 

Hawaii
Champion Seed Co.
Keithly Williams Seeds
Select Seed of Arizona
Western Pacific Seed

Texas
Champion Seed Co.
Del Norte Seed Co.
Willhite Seed Co., Inc.

Illinois
Rispens Seeds, Inc.

New Mexico
Helena Chemical Co.
Keithly Williams Seeds
Lockhart Seeds, Inc.

New York
Harris Seeds
Reeds Seed Co.
Stokes Seed Ltd. 

North Carolina
Clifton Seed Co.

Oklahoma
DeWitt Seed Co.

Oregon
Zenner Brothers' Seed Co.

Pennsylvania
Nolt's Produce Supplies
Seedway

Virginia
Southern States Cooperative, Inc.

Washington
Keithly Williams Seeds
Logan Co.
Osborne International Seed Co.

Canada
A. Bourcheix & R. Charbonneau
La Coop Uniforce
Stokes Seed Ltd. 
Vesey's Seeds, Ltd.

Western Canada
Keithly Williams Seeds
Osborne International Seed Co.

Mexico
Keithly Williams Seeds
Sierra Seed Co., Inc.