| FIND YOUR WHY TRAVEL THE WANDERER'S WAYSummerville, OR · Active | Summerville, OR | Other | Dec 2, 2024 | Active |
| GRAY MATTERS RESCUE AND RECOVERYSummerville, OR · Active | Summerville, OR | Nonprofit | Dec 17, 2024 | Active |
| TARVIN CATTLE LLCSummerville, OR · Active | Summerville, OR | LLC | Jan 2, 2025 | Active |
| CQCLOSERS, LLCSummerville, OR · Active | Summerville, OR | LLC | Jan 9, 2025 | Active |
| CANYON CREST LAND MANAGEMENT LLCSummerville, OR · Active | Summerville, OR | LLC | Jan 28, 2025 | Active |
| TEEKS TREASURESSummerville, OR · Active | Summerville, OR | Other | Feb 27, 2025 | Active |
| WG ELECTRIC CORPORATIONSummerville, OR · Active | Summerville, OR | Corporation | May 19, 2025 | Active |
| WG ELECTRICSummerville, OR · Active | Summerville, OR | Other | May 30, 2025 | Active |
| BRITT PAINTING & REMODEL LLCSummerville, OR · Active | Summerville, OR | LLC | Jun 23, 2025 | Active |
| J AND V HOLDING LLCSummerville, OR · Active | Summerville, OR | LLC | Aug 8, 2025 | Active |
| SARAH JO GODDARD ARTSummerville, OR · Active | Summerville, OR | Other | Sep 2, 2025 | Active |
| BREANNS COMMERCIAL CLEANING LLCSummerville, OR · Active | Summerville, OR | LLC | Sep 12, 2025 | Active |
| DIRT AERIAL PRECISION LLCSummerville, OR · Active | Summerville, OR | LLC | Dec 2, 2025 | Active |
| SHAREWOOD FOREST LLCSummerville, OR · Active | Summerville, OR | LLC | Feb 10, 2026 | Active |
| GRANDE RONDE PRECISION RIFLE CLUBSummerville, OR · Active | Summerville, OR | Other | Dec 29, 2025 | Active |
| BCR FARMSSummerville, OR · Active | Summerville, OR | Other | Jan 7, 2026 | Active |
| MR O'S HANDYMAN SERVICESummerville, OR · Active | Summerville, OR | Other | Feb 23, 2026 | Active |
| WESLEY WHITE FILMSSummerville, OR · Active | Summerville, OR | Other | Mar 16, 2026 | Active |
| 4TW RANCH, LLCSummerville, OR · Active | Summerville, OR | LLC | Apr 7, 2026 | Active |
| MR O'S HANDYMAN SERVICE LLCSummerville, OR · Active | Summerville, OR | LLC | Apr 10, 2026 | Active |
| FRESH GARDEN LIVINGSummerville, OR · Active | Summerville, OR | Other | Jun 22, 2026 | Active |
| SUMMERVILLE LAND AND CATTLE LLCSummerville, OR · Active | Summerville, OR | LLC | Jun 30, 2026 | Active |
| PRECISION TILE & REMODELING LLCSummerville, OR · Active | Summerville, OR | LLC | Jul 20, 2026 | Active |
| LAS INVESTMENTS, LLCSummerville, OR · Active | Summerville, OR | LLC | Jul 23, 2026 | Active |
| SWEET B FARMS LLCSummerville, OR · Active | Summerville, OR | LLC | Aug 10, 2026 | Active |
| TEK ADVENTURES, LLCSummerville, OR · Active | Summerville, OR | LLC | Sep 15, 2026 | Active |
| BY THE HORNS, CO.Summerville, OR · Active | Summerville, OR | Corporation | Sep 24, 2026 | Active |
| RAFTER B RANCH, LLCSummerville, OR · Active | Summerville, OR | LLC | Jun 28, 2001 | Active |
| OREGON AGRICULTURE FOUNDATIONSummerville, OR · Active | Summerville, OR | Nonprofit | Jun 12, 1992 | Active |
| FARMERS LODGE #49 INDEPENDENT ORDER OF ODD FELLOWSSummerville, OR · Active | Summerville, OR | Nonprofit | Oct 31, 2005 | Active |
| GRANDE RONDE MOBILE VETERINARY CLINICSummerville, OR · Active | Summerville, OR | Other | Nov 3, 2005 | Active |
| GROWISER/ GRANDE RONDE OVERLOOK WILDFLOWER INSTITUTE SERVING ECOLOGICAL RESTORATIONSummerville, OR · Active | Summerville, OR | Nonprofit | Aug 16, 1993 | Active |
| C BAR C OUTFITTERSSummerville, OR · Active | Summerville, OR | Other | Mar 7, 1994 | Active |
| SUMMERVILLE STORE & TAVERNSummerville, OR · Active | Summerville, OR | Other | Feb 10, 1994 | Active |
| R&M INVESTMENTS, LLCSummerville, OR · Active | Summerville, OR | LLC | Apr 3, 2007 | Active |
| MULESHOE RANCHSummerville, OR · Active | Summerville, OR | Other | May 15, 1995 | Active |
| H D LTD.Summerville, OR · Active | Summerville, OR | Corporation | Feb 20, 1996 | Active |
| KO KREATIONSSummerville, OR · Active | Summerville, OR | Other | Apr 17, 2008 | Active |
| WAY CORPORATIONSummerville, OR · Active | Summerville, OR | Corporation | Jun 28, 1996 | Active |
| STARGAZER PERENNIALSSummerville, OR · Active | Summerville, OR | Other | Jun 23, 2008 | Active |
| SUMMERVILLE BAPTIST CHURCH OF SUMMERVILLE, OREGONSummerville, OR · Active | Summerville, OR | Nonprofit | Sep 2, 1955 | Active |
| BLUE MOUNTAIN BACK COUNTRY RIDERSSummerville, OR · Active | Summerville, OR | Nonprofit | Feb 12, 1997 | Active |
| S.W.RABOURNE TRUCKINGSummerville, OR · Active | Summerville, OR | Other | Dec 22, 2008 | Active |
| JEWEL REBEKAH LODGE #96Summerville, OR · Active | Summerville, OR | Nonprofit | Apr 8, 1957 | Active |
| THE FLY FISHING PLACE FLY SHOPSummerville, OR · Active | Summerville, OR | Other | Jan 8, 2010 | Active |
| PDM ENTERPRISES, INC.Summerville, OR · Active | Summerville, OR | Corporation | May 24, 2002 | Active |
| MCKAIG PROPERTIES, LLCSummerville, OR · Active | Summerville, OR | LLC | May 24, 2002 | Active |
| GRANDE RONDE INSTRUMENT REPAIRSummerville, OR · Active | Summerville, OR | Other | Oct 19, 2012 | Active |
| FRANCIS E. SZUMSKI, DO, LLCSummerville, OR · Active | Summerville, OR | LLC | Jul 1, 2013 | Active |
| TAMARACK FARM LLCSummerville, OR · Active | Summerville, OR | LLC | Jul 8, 2013 | Active |