- Allweather Wood Treaters
- American Timber Tech
- Backyard Builders
- Cedar Solution
- Cedar Treatment Svc Inc
- CPPLLC
- D J Dutch
- D J Dynamic Sounds
- D J Eckman Inc
- Decked Out
- Eastern Shore Marine LLC
- ELCO Forest Products
- Elderwood Preserving Planer
- Follen Wood Preserving Co Inc
- FPRL
- J F Miller Painting
- Kop-Coat
- Koppers Inc
- Koppers Industries
- L & C Enterprises
- Mc Rae Woodtreating Inc
- Midwest Wood Treating
- Nu-Wood 2 Of Louisville
- Pride Exteriors
- Renu-A-Deck
- Southern Wood Fiber
- Southern Wood Preserving
- Southern Wood Treatment Co
- Thomas Wood Preserving Inc
- TSO Of Ohio
- Wocon Seal
- Wood Magic
- Wood Re-New
- Wood Renew
