| BPBaldwin Pole & Piling Company., INC. | Bay Minette | AL | — | ◇ UNVERIFIED |
| BLBarksdale Lumber Company, INC | Amity | AR | — | ◇ UNVERIFIED |
| BSBb & S Treated Lumber of Ne | North Kingstown | RI | — | ◇ UNVERIFIED |
| BLBell Lumber & Pole Company | Sidney | NE | — | ◇ UNVERIFIED |
| BEBestway Enterprises INC | Gouverneur | NY | — | ◇ UNVERIFIED |
| BEBestway Enterprises INC | Cortland | NY | — | ◇ UNVERIFIED |
| BLBestway Lumber Treatment Center | Cresco | PA | — | ◇ UNVERIFIED |
| BOBestway of New England | South Lancaster | MA | — | ◇ UNVERIFIED |
| BRBlue Ridge Wood Preserving Incorporated | Moneta | VA | — | ◇ UNVERIFIED |
| BMB & M Wood Products INC | Manor | GA | — | ◇ UNVERIFIED |
| BSBowie Sims Prange Treating | Carrollton | TX | — | ◇ UNVERIFIED |
| BBBrackett Brothers CORP | Morganton | NC | — | ◇ UNVERIFIED |
| BBurke-parsons-bowlby | Goshen | VA | — | ◇ UNVERIFIED |
| CNCentral Nebraska Wood Preserve Rs | Sutton | NE | — | ◇ UNVERIFIED |
| CTC.m. Tucker Lumber of Nc - Henderson Plant | Henderson | NC | — | ◇ UNVERIFIED |
| CLCoastal Lumber Company | Havana | FL | — | ◇ UNVERIFIED |
| CTCoastal Treated Products CO. | Belington | WV | — | ◇ UNVERIFIED |
| CTColfax Treating CO LLC | Pineville | LA | — | ◇ UNVERIFIED |
| CWCommonwealth Wood Preservers Incorporated | Hampton | VA | — | ◇ UNVERIFIED |
| CFConrad Forest Products | Arbuckle | CA | — | ◇ UNVERIFIED |
| CWConrad Wood Preserving | North Bend | OR | — | ◇ UNVERIFIED |
| COCulpeper of Athens LLC | Athens | NY | — | ◇ UNVERIFIED |
| COCulpeper of Roanoke Rapids LLC | Roanoke Rapids | NC | — | ◇ UNVERIFIED |
| COCulpepper of Cove City | Cove City | NC | — | ◇ UNVERIFIED |
| COCulpepper of Ramseur, LLC | Coleridge | NC | — | ◇ UNVERIFIED |
| DIDantzler INC | Jacksonville | FL | — | ◇ UNVERIFIED |
| DDD & D Wood Preserving, INC. | Albany | GA | — | ◇ UNVERIFIED |
| EFEastex Forest Products Incorporated | Houston | TX | — | ◇ UNVERIFIED |
| ETEast Tennessee Forest Products Incorporated | Mosheim | TN | — | ◇ UNVERIFIED |
| EDE D Cook Lumber CO | Orlando | FL | — | ◇ UNVERIFIED |
| EMElectric Mills Wood Preserving, LLC | Scooba | MS | — | ◇ UNVERIFIED |
| ETEverwood Treatment Company, INC. | Spanish Fort | AL | — | ◇ UNVERIFIED |
| EWExterior Wood | Washougal | WA | — | ◇ UNVERIFIED |
| FWFalkville Wood Treating INC. | Falkville | AL | — | ◇ UNVERIFIED |
| FFFlorida Fence Post CO | Ona | FL | — | ◇ UNVERIFIED |
| FWFontana Wood Preserving INC | Fontana | CA | — | ◇ UNVERIFIED |
| FPForest Products Distributors | Rapid City | SD | — | ◇ UNVERIFIED |
| FWFortress Wood Products INC | High Point | NC | — | ◇ UNVERIFIED |
| GTGeneral Timber Inc,. | Sanford | NC | — | ◇ UNVERIFIED |
| GPGeorgia Pacific/southeast Wood | Athens | AL | — | ◇ UNVERIFIED |
| GWGeorgia-pacific Wood Products LLC Fordyce Osb | Fordyce | AR | — | ◇ UNVERIFIED |
 Great Southern Enterprises, INC. | Haleyville | AL | — | ◇ UNVERIFIED |
| Great Southern Wood Brookhaven INC | Brookhaven | MS | — | ◇ UNVERIFIED |
| Great Southern Wood Preserving | Lake Panasoffkee | FL | — | ◇ UNVERIFIED |
| Great Southern Wood Preserving INC | Abbeville | AL | — | ◇ UNVERIFIED |
| Great Southern Wood Preserving INC | Jesup | GA | — | ◇ UNVERIFIED |
| Great Southern Wood Preserving INC - Great Southern Wood - Mansura INC | Mansura | LA | — | ◇ UNVERIFIED |
| Great Southern Wood Preserving of North Alabama INC | Tuscumbia | AL | — | ◇ UNVERIFIED |
| GTGulf Treating INC | San Juan | PR | — | ◇ UNVERIFIED |
| HLHatfield Lumber Company, INC | Hatfield | AR | — | ◇ UNVERIFIED |
| HPHills Products Group | Whitewood | SD | — | ◇ UNVERIFIED |
| HLHixson Lumber Company, LLC | Milan | TN | — | ◇ UNVERIFIED |
| HLHixson Lumber Company, LLC | Pine Bluff | AR | — | ◇ UNVERIFIED |
| HLHixson Lumber Company - Magnolia | Magnolia | AR | — | ◇ UNVERIFIED |
| HLHixson Lumber Sales | Gilmer | TX | — | ◇ UNVERIFIED |
| HLHixson Lumber Sales | Caddo Mills | TX | — | ◇ UNVERIFIED |
| HLHixson Lumber Sales, INC. | Plumerville | AR | — | ◇ UNVERIFIED |
| HLHixson Lumber Sales of Illinois INC | Hillsboro | IL | — | ◇ UNVERIFIED |
| HLHixson Lumber Sales of Illinois, INC. | Streator | IL | — | ◇ UNVERIFIED |
| HLHixson Lumber Sales of Louisiana INC | Winnfield | LA | — | ◇ UNVERIFIED |
| HMH. M. Stauffer & Sons INC | Leola | PA | — | ◇ UNVERIFIED |
| HWHonolulu Wood Treating LLC | Kapolei | HI | — | ◇ UNVERIFIED |
| HTHoover Treated Wood Products | Pine Bluff | AR | — | ◇ UNVERIFIED |
| HTHoover Treated Wood Products INC | Thomson | GA | — | ◇ UNVERIFIED |
| HTHoover Treated Wood Products, INC. | Halifax | NC | — | ◇ UNVERIFIED |
| HTHoover Treated Wood Products, INC. | Detroit | MI | — | ◇ UNVERIFIED |
| HPHuxford Pole & Timber CO. INC. | Atmore | AL | — | ◇ UNVERIFIED |
| HIHydrolake INC | Mc Bain | MI | — | ◇ UNVERIFIED |
| ITIdaho Timer CORP of Illinois | Rochelle | IL | — | ◇ UNVERIFIED |
| IFInternational Forest Products | Houston | TX | — | ◇ UNVERIFIED |
| IWIowa Wood Preservers INC | Oskaloosa | IA | — | ◇ UNVERIFIED |
| JAJohn a Biewer CO of Illinois | Seneca | IL | — | ◇ UNVERIFIED |
| KFKeystone Fence Supply CO LLC | Schaefferstown | PA | — | ◇ UNVERIFIED |
| KIKoppers, INC. | Guthrie | KY | — | ◇ UNVERIFIED |
| KIKoppers, INC. | North Little Rock | AR | — | ◇ UNVERIFIED |
| KIKoppers Incorporated Salem Plant | Salem | VA | — | ◇ UNVERIFIED |
| KIKoppers INC (susquehana Pa) | Montgomery | PA | — | ◇ UNVERIFIED |
| KIKoppers Industries | Somerville | TX | — | ◇ UNVERIFIED |
| KIKoppers Industries Incorporated | Florence | SC | — | ◇ UNVERIFIED |
| KUKoppers Utility & Industrial Products INC - Kennedy Plant | Kennedy | AL | — | ◇ UNVERIFIED |
| LOLand O Lakes Wood Preserving CO | Tenstrike | MN | — | ◇ UNVERIFIED |
| LFLangdale Forest Prods CO | Sweetwater | TN | — | ◇ UNVERIFIED |
| LCLavelle Company | Fargo | ND | — | ◇ UNVERIFIED |
| LLLong Life Treated Wood | Hebron | MD | — | ◇ UNVERIFIED |
 Louisiana Pacific CORP. Silsbee Tx | Silsbee | TX | — | ◇ UNVERIFIED |
| MTMaderas Tratadas (former Boricua Wood) | Toa Baja | PR | — | ◇ UNVERIFIED |
| MLMcarthur Lumber and Post | Mc Arthur | OH | — | ◇ UNVERIFIED |
| MCMcfarland Cascade Pole and Lumber | Eugene | OR | — | ◇ UNVERIFIED |
| MIMenard INC Midwest Mfg & Dist | Eau Claire | WI | — | ◇ UNVERIFIED |
| MEMerit Energy Company, LLC - Tobey Compressor Station | Charleston | AR | — | ◇ UNVERIFIED |
| MWMid-states Wood Preservers LLC | Simsboro | LA | — | ◇ UNVERIFIED |
| MMMidwest Manufacturing Treating Plant | Plano | IL | — | ◇ UNVERIFIED |
| MMMidwest Mfg Holiday City Treating Plant | Holiday City | OH | — | ◇ UNVERIFIED |
| MMMidwest Mfg Valley Treating Plant | Valley | NE | — | ◇ UNVERIFIED |
| MTMidwest Timber INC | Edwardsburg | MI | — | ◇ UNVERIFIED |
 Missouri Tie LLC | Reynolds | MO | — | ◇ UNVERIFIED |
| NANaval Air Station Pensacola | Pensacola | FL | — | ◇ UNVERIFIED |
| NTNortheast Treaters INC | Belchertown | MA | — | ◇ UNVERIFIED |
| ODOilfield Division | Lufkin | TX | — | ◇ UNVERIFIED |
| OIOsmose INC | Rock Hill | SC | — | ◇ UNVERIFIED |
