States serviced by the following members:
American Clay Works & Supply Company – CO, NM, WY, Parts of NE, UT, MT, SD, KS
American Plant Products & Services, Inc. – OK, KS, TX, Parts of AR, NM, MO; greenhouse construction across U.S.
Carlin Horticultural Supplies/Pro Green Plus – MN, IA, WI, IL, OH, IN, MI, ND, SD, NE
McConkey & Co., Inc – WA, OR, CA, NV, UT, AZ, ID, MT, HI, AK, Parts of NM & BC, AB Canada
Kinney Bonded Warehouse, Inc. – TX, Mexico
Maryland Plants & Supplies, Inc. – MD, DE, NJ, VA, PA, WV
Waldo & Associates, Inc. – OH, MI, IN, Parts of KY, PA
Premium Horticulture Seed -Ky
HDA - Horticultural Distributors Alliance 