| Cascade Community Health Care | Health Care and Social Assistance | $1,500,000 | $1,508,533 | 137 | N/A |  Research |
| Washington Orthopaedic Center, Inc., P.s | Health Care and Social Assistance | $1,232,038 | $742,719 | 64 | $20.1M | Research |
| N.w. Pediatric Center Inc. P.s | Health Care and Social Assistance | $1,081,124 | $1,089,181 | 73 | $22.9M | Research |
| W & N Development, L.l.c. | Construction | $1,018,587 | $1,026,736 | 65 | $15.0M | Research |
| Sharon Care Center, Inc. | Health Care and Social Assistance | $1,009,410 | $1,018,647 | 68 | $11.6M | Research |
| Sterling Breen Crushing INC | Mining, Quarrying, and Oil and Gas Extraction | $853,100 | $858,195 | 48 | <$5M | Research |
| Sterling Breen Crushing INC | Mining, Quarrying, and Oil and Gas Extraction | $853,100 | $857,377 | 48 | <$5M | Research |
| The Lincoln Creek Lumber Company, INC | Wholesale Trade | $761,400 | $768,221 | 99 | $30.3M | Research |
| D & S Enterprises Inc. | Retail Trade | $562,000 | $566,465 | 88 | $22.0M | Research |
| Keller Korp. Inc. | Accommodation and Food Services | $539,519 | $544,929 | 56 | $9.9M | Research |
| Reliable Enterprises | Other Services (except Public Administration) | $436,943 | $442,378 | 1 | <$5M | Research |
| Keller Korp INC | Accommodation and Food Services | $388,422 | $391,346 | 56 | $9.9M | Research |
| Ramblin Jacks Ribeye LLC | Accommodation and Food Services | $386,263 | $390,464 | 43 | $7.6M | Research |
| Dsn Software, Inc. | Professional, Scientific, and Technical Services | $347,100 | $349,991 | 25 | <$5M | Research |
| Sub Bros NW Inc. | Accommodation and Food Services | $343,400 | $345,631 | 91 | $16.2M | Research |
| Coalview Centralia LLC | Mining, Quarrying, and Oil and Gas Extraction | $318,000 | $319,594 | 19 | <$5M | Research |
| Dsn Software INC | Information | $317,255 | $319,000 | 29 | <$5M | Research |
| Lafromboise Communication LLC | Retail Trade | $303,300 | $305,519 | 32 | $7.5M | Research |
| Anderson's Fabrication, Inc. | Manufacturing | $283,000 | $284,558 | 21 | $5.1M | Research |
| Market Restaurant Group LLC | Accommodation and Food Services | $282,512 | $284,903 | 34 | $6.0M | Research |
| Ash and Roberts DDS Pllc | Health Care and Social Assistance | $273,200 | $275,984 | 19 | <$5M | Research |
| Centralia Physical Therapy, Inc., P.s. | Health Care and Social Assistance | $270,827 | $273,394 | 28 | $7.6M | Research |
| Bass Enterprises Inc. | Accommodation and Food Services | $269,600 | $272,547 | 64 | $11.4M | Research |
| Ct Publishing | Information | $258,400 | $259,179 | 41 | $6.9M | Research |
| Stillwaters Foundation | Health Care and Social Assistance | $255,000 | $256,991 | 54 | N/A | Research |