| PRAIRIE POST, NO. 106, THE AMERICAN LEGIONPrairie City, OR · Active | Prairie City, OR | Nonprofit | Feb 27, 1929 | Active |
| ARCANUM INSTITUTE INC.Prairie City, OR · Active | Prairie City, OR | Corporation | May 2, 1985 | Active |
| CG ENTERPRISES, LLCPrairie City, OR · Active | Prairie City, OR | LLC | Apr 19, 2006 | Active |
| STRAWBERRY MOUNTAIN, LLCPrairie City, OR · Active | Prairie City, OR | LLC | Nov 2, 2006 | Active |
| DOUBLE C CONSTRUCTION INC.Prairie City, OR · Active | Prairie City, OR | Corporation | Apr 25, 1994 | Active |
| J & M COOMBS RANCH, L.L.C.Prairie City, OR · Active | Prairie City, OR | LLC | Dec 23, 1994 | Active |
| BLUE MOUNTAIN CARE CENTERPrairie City, OR · Active | Prairie City, OR | Other | Aug 7, 2007 | Active |
| WILD HONEY EXCAVATION, INC.Prairie City, OR · Active | Prairie City, OR | Corporation | Jul 31, 2007 | Active |
| RIGGS LAND AND CATTLE COMPANY, LLCPrairie City, OR · Active | Prairie City, OR | LLC | Aug 22, 2007 | Active |
| ROCKIN R CATTLE COMPANY LLCPrairie City, OR · Active | Prairie City, OR | LLC | Jan 28, 2008 | Active |
| WINEGAR EXCAVATING, INC.Prairie City, OR · Active | Prairie City, OR | Corporation | Jan 24, 1996 | Active |
| THE FRIENDS OF BATES STATE PARKPrairie City, OR · Active | Prairie City, OR | Nonprofit | Mar 14, 2008 | Active |
| E&M KIMBERLING RANCH L.L.C.Prairie City, OR · Active | Prairie City, OR | LLC | Dec 12, 1996 | Active |
| PRAIRIEWINKLE, INC.Prairie City, OR · Active | Prairie City, OR | Corporation | Jan 7, 1997 | Active |
| PRAIRIE CITY ASSEMBLY OF GODPrairie City, OR · Active | Prairie City, OR | Nonprofit | Jul 28, 1955 | Active |
| PREMIER APPRAISAL SERVICES, INC.Prairie City, OR · Active | Prairie City, OR | Corporation | Nov 12, 2008 | Active |
| RICCO RANCHPrairie City, OR · Active | Prairie City, OR | Other | Mar 4, 2009 | Active |
| CO-GEN CO., LLCPrairie City, OR · Active | Prairie City, OR | LLC | Jan 20, 1998 | Active |
| VOIGT CHEVRON, L.L.C.Prairie City, OR · Active | Prairie City, OR | LLC | Mar 26, 1998 | Active |
| J & D LOGGINGPrairie City, OR · Active | Prairie City, OR | Other | Mar 30, 1998 | Active |
| DARRELL & DOUGLAS EMMEL, LLCPrairie City, OR · Active | Prairie City, OR | LLC | Sep 10, 2009 | Active |
| J & D LOGGING & CONTRACTING, LLCPrairie City, OR · Active | Prairie City, OR | LLC | Dec 17, 2009 | Active |
| J & D RANCHPrairie City, OR · Active | Prairie City, OR | Other | Jan 7, 2010 | Active |
| AMERICAN LEGION AUXILIARY - PRAIRIE UNIT 106Prairie City, OR · Active | Prairie City, OR | Nonprofit | Nov 5, 1998 | Active |
| WISHARD BALE STACKING, INC.Prairie City, OR · Active | Prairie City, OR | Corporation | Mar 8, 1999 | Active |
| PRAIRIE TRADING POSTPrairie City, OR · Active | Prairie City, OR | Other | Mar 17, 1999 | Active |
| CHINOOK WIND FARMS, LLCPrairie City, OR · Active | Prairie City, OR | LLC | Oct 29, 2010 | Active |
| DARLYN ENTERPRISESPrairie City, OR · Active | Prairie City, OR | Other | Dec 21, 1999 | Active |
| RUDIO MOUNTAIN RANCH, LLCPrairie City, OR · Active | Prairie City, OR | LLC | Nov 12, 2010 | Active |
| RIGGS LOGGING LLCPrairie City, OR · Active | Prairie City, OR | LLC | Nov 12, 2010 | Active |
| FIELD'S GRASSFED BEEF, LLCPrairie City, OR · Active | Prairie City, OR | LLC | Dec 15, 2010 | Active |
| TYLER SHEEDY CONSTRUCTION, INC.Prairie City, OR · Active | Prairie City, OR | Corporation | Feb 7, 2011 | Active |
| RIVERSIDE RANCHPrairie City, OR · Active | Prairie City, OR | Other | Mar 22, 2011 | Active |
| BLUE MOUNTAIN ANGUS, LLCPrairie City, OR · Active | Prairie City, OR | LLC | Jul 27, 2000 | Active |
| PRAIRIE WATER SERVING CORPORATIONPrairie City, OR · Active | Prairie City, OR | Nonprofit | May 24, 2011 | Active |
| YACHATS INVESTMENTS, LLC.Prairie City, OR · Active | Prairie City, OR | LLC | Jun 1, 2011 | Active |
| PRAIRIE BAPTIST CHURCHPrairie City, OR · Active | Prairie City, OR | Nonprofit | Apr 13, 1966 | Active |
| STRAWBERRY ROANPrairie City, OR · Active | Prairie City, OR | Other | Sep 19, 2011 | Active |
| FIELD RANCH, LLCPrairie City, OR · Active | Prairie City, OR | LLC | Jul 23, 2013 | Active |
| JDL CONTRACTINGPrairie City, OR · Active | Prairie City, OR | Other | Jan 28, 2014 | Active |