– Appalachian Hardwood Manufacturers, Inc. (AHMI)
– Appalachian Lumbermen’s Club (ALC)
 – Great Lakes Kiln Drying Association (GLKDA)
 – Hardwood Manufacturers Association (HMA)
 – Indiana Hardwood Lumbermen’s Association (IHLA)

  – Kentucky Forest Industries Association (KFIA)

– Mississippi Lumber Manufacturer’s Association (MLMA)

 – North American Wholesale Lumber Association (NAWLA)
 – New England Kiln Drying Association (NEKDA)
 – Northeastern Loggers’ Association (NELA)
 – Northeastern Lumber Manufacturers Association (NELMA)
 – National Hardwood Lumber Association (NHLA) 
 – National Wooden Pallet and Container Association (NWPCA)
 – Ohio Forestry Association (OFA)

– Ohio Valley Lumber Drying Association (OVLDA)

 – Penn York Lumbermen’s Club
 – Pennsylvania Forest Products Association (PFPA)
 – Southern Forest Product Association (SFPA)

– Southeastern Lumber Manufacturers Association (SLMA)

– Western Hardwood Association (WHA)