| SLShuqualak Lumber Company | Shuqualak | MS | — | ◇ UNVERIFIED |
| SLShuqualak Lumber Company | Shuqualak | MS | — | ◇ UNVERIFIED |
| SLShuqualak Lumber Company Inc, Sawmill Division | Shuqualak | MS | — | ◇ UNVERIFIED |
| S2Sic 24 - Building 8, 14, 154, 226, 1072 | Jbphh | HI | — | ◇ UNVERIFIED |
| SISiemens Industry, INC. | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| SPSierra Pacific Ind. - Anderson | Anderson | CA | — | ◇ UNVERIFIED |
| SPSierra Pacific Ind-chinese Camp Division | Chinese Camp | CA | — | ◇ UNVERIFIED |
 Sierra Pacific Industries | Burney | CA | — | ◇ UNVERIFIED |
| Sierra Pacific Industries | Loyalton | CA | — | ◇ UNVERIFIED |
| Sierra Pacific Industries | Central Valley | CA | — | ◇ UNVERIFIED |
| Sierra Pacific Industries | Quincy | CA | — | ◇ UNVERIFIED |
| Sierra Pacific Industries | Burney | CA | — | ◇ UNVERIFIED |
| Sierra Pacific Industries | Lincoln | CA | — | ◇ UNVERIFIED |
| Sierra Pacific Industries | Arcata | CA | — | ◇ UNVERIFIED |
| Sierra Pacific Industries (2042-rd) | Red Bluff | CA | — | ◇ UNVERIFIED |
| Sierra Pacific Industries - Arcata Division | Arcata | CA | — | ◇ UNVERIFIED |
| Sierra Pacific Industries - Keystone Bark Plant | Jamestown | CA | — | ◇ UNVERIFIED |
| Sierra Pacific Industries - Shelton | Shelton | WA | — | ◇ UNVERIFIED |
| STSignature Transport INC. | Vancouver | WA | — | ◇ UNVERIFIED |
| SISignographics2000 INC | Sun Valley | CA | — | ◇ UNVERIFIED |
| SCSika Corporation | Newark | CA | — | ◇ UNVERIFIED |
| SVSika-stafford Va | Stafford | VA | — | ◇ UNVERIFIED |
 Sila Nanotechnologies INC. | Atlanta | GA | — | ◇ UNVERIFIED |
| SBSiller Bros INC | Anderson | CA | — | ◇ UNVERIFIED |
| SBSilver Bay Logging Wrangell Sawmill | Wrangell | AK | — | ◇ UNVERIFIED |
| SISimiron, Inc. | Rochester Hills | MI | — | ◇ UNVERIFIED |
| SLSimmons Logging, LLC | Toone | TN | — | ◇ UNVERIFIED |
| SVSimple Vapor | Dublin | OH | — | ◇ UNVERIFIED |
| SLSimpson Lumber Company, LLC | Tacoma | WA | — | ◇ UNVERIFIED |
| STSimpson Timber CO Commencement Bay Opr | Tacoma | WA | — | ◇ UNVERIFIED |
| STSimpson Timber CO St Yd Sawmill 5 | Shelton | WA | — | ◇ UNVERIFIED |
| SESiouxland Energy Cooperative | Hudson | SD | — | ◇ UNVERIFIED |
| SLSiwek Lumber and Millwork INC | Jordan | MN | — | ◇ UNVERIFIED |
| SNSixin North America Inc/greenville South Carolina Operations | Taylors | SC | — | ◇ UNVERIFIED |
| SOSjt of Michigan LP | Detroit | MI | — | ◇ UNVERIFIED |
| SLSkidmore Lumber Co., LLC | Freeburg | MO | — | ◇ UNVERIFIED |
| SKS K Lumber | Cochranton | PA | — | ◇ UNVERIFIED |
| SLSkookum Lumber Plant | Shelton | WA | — | ◇ UNVERIFIED |
| SPSkyline Post and Pole Limited Liability Company | Louisa | VA | — | ◇ UNVERIFIED |
| SCSlade's Custom Sawmill | Providence | NC | — | ◇ UNVERIFIED |
| SRSlice Recovery INC | Coquille | OR | — | ◇ UNVERIFIED |
| SLSmallwood Lumber CO LLC | Frenchburg | KY | — | ◇ UNVERIFIED |
| SMS M C Lumber CO INC | Pulaski | TN | — | ◇ UNVERIFIED |
| SBSmith Brothers Lumber | Hartford | KY | — | ◇ UNVERIFIED |
| SFSmith Flooring INC | Winona | MO | — | ◇ UNVERIFIED |
| SHSmoke House Lumber Company | Warrenton | NC | — | ◇ UNVERIFIED |
| SISmoothbore International, INC. | Red Creek | NY | — | ◇ UNVERIFIED |
| SKSmurfit Kappa (chemtreat Containers) | Chandler | AZ | — | ◇ UNVERIFIED |
| SISnider Industries Sawmill | Marshall | TX | — | ◇ UNVERIFIED |
| S6Snowball 6.0, LLC | New Plymouth | ID | — | ◇ UNVERIFIED |
