| THE ELKHORN GROUP, LLCSumpter, OR · Active | Sumpter, OR | LLC | Jul 28, 2014 | Active |
| LONG'S WATERWORKS, LLCSumpter, OR · Active | Sumpter, OR | LLC | Aug 19, 2014 | Active |
| MCEWEN LODGE NO. 125, ANCIENT FREE AND ACCEPTED MASONS OF OREGONSumpter, OR · Active | Sumpter, OR | Nonprofit | Mar 12, 1974 | Active |
| SMALL JOBS R - O.K.Sumpter, OR · Active | Sumpter, OR | Other | Jan 21, 2015 | Active |
| SMOKIN RIDGESumpter, OR · Active | Sumpter, OR | Other | Feb 23, 2015 | Active |
| SUMPTER VALLEY COMMUNITY VOLUNTEERSSumpter, OR · Active | Sumpter, OR | Nonprofit | Jun 19, 2015 | Active |
| MARSHALL'S GROUP PROPERTIES, LLCSumpter, OR · Active | Sumpter, OR | LLC | Jul 27, 2015 | Active |
| ECHO MEADOWS LLCGranite, OR · Active | Granite, OR | LLC | Dec 18, 2015 | Active |
| EASTERN OREGON ATV ADVENTURESSumpter, OR · Active | Sumpter, OR | Other | Jun 3, 2016 | Active |
| HELGE BROTHERS LLCSumpter, OR · Active | Sumpter, OR | LLC | Aug 8, 2016 | Active |
| SWAN MINING OPERATIONS, LLCSumpter, OR · Active | Sumpter, OR | LLC | Aug 25, 2016 | Active |
| POWDER RIVER INDUSTRIES, LLCSumpter, OR · Active | Sumpter, OR | LLC | Oct 26, 2016 | Active |
| BEAVER POND ENTERPRISES, LLCSumpter, OR · Active | Sumpter, OR | LLC | Jun 29, 2017 | Active |
| SUMPTER STOCKADE MOTEL LLCSumpter, OR · Active | Sumpter, OR | LLC | Aug 31, 2017 | Active |
| I SAW A BEAR, LLCSumpter, OR · Active | Sumpter, OR | LLC | Sep 19, 2017 | Active |
| GANDD 1, LLCSumpter, OR · Active | Sumpter, OR | LLC | Feb 8, 2018 | Active |
| GANDD 2, LLCSumpter, OR · Active | Sumpter, OR | LLC | May 18, 2018 | Active |
| GOLD RUSH RV PARKSumpter, OR · Active | Sumpter, OR | Other | Jul 12, 2018 | Active |
| FALCON CREST INVESTMENT LLCSumpter, OR · Active | Sumpter, OR | LLC | Sep 24, 2018 | Active |
| CANARY OPERATING LLC.Sumpter, OR · Active | Sumpter, OR | LLC | Oct 25, 2018 | Active |
| PATTERSON INVESTMENT PROPERTIES, LLCSumpter, OR · Active | Sumpter, OR | LLC | Apr 10, 2019 | Active |
| D&R TREE FARM AND MANAGEMENT LLCSumpter, OR · Active | Sumpter, OR | LLC | Jun 4, 2019 | Active |
| PAXTIAL ARTS INCSumpter, OR · Active | Sumpter, OR | Nonprofit | Sep 3, 2019 | Active |
| TIMBERLINE BUILDERSSumpter, OR · Active | Sumpter, OR | Other | Oct 4, 2019 | Active |
| IRON HORSE LOOP LLCSumpter, OR · Active | Sumpter, OR | LLC | Feb 6, 2020 | Active |
| SUMPTER VALLEY BLUE MOUNTAIN SNOWMOBILE CLUB, INC.Sumpter, OR · Active | Sumpter, OR | Nonprofit | Oct 10, 1983 | Active |
| NUGGETEER'S CLUBSumpter, OR · Active | Sumpter, OR | Other | Sep 16, 2020 | Active |
| WHISTLE STOP RV PARK, LLCSumpter, OR · Active | Sumpter, OR | LLC | Dec 28, 2021 | Active |
| THE GOLDPOSTSumpter, OR · Active | Sumpter, OR | Other | Jan 14, 2022 | Active |
| SALZMANN MOTORS, LLCSumpter, OR · Active | Sumpter, OR | LLC | Sep 26, 2022 | Active |
| HIGH DESERT RVSumpter, OR · Active | Sumpter, OR | Other | Nov 21, 2022 | Active |
| MOSTEIT ENTERPRISES, LIMITED LIABILITY COMPANYGranite, OR · Active | Granite, OR | LLC | Feb 24, 2023 | Active |
| 175 MILL ST LLCSumpter, OR · Active | Sumpter, OR | LLC | Apr 3, 2023 | Active |
| SUMPTER VALLEY ATV ASSOCIATIONSumpter, OR · Active | Sumpter, OR | Nonprofit | Aug 31, 2023 | Active |
| STAGE STOPSumpter, OR · Active | Sumpter, OR | Other | Jul 7, 2004 | Active |
| YONDER PINES LLCSumpter, OR · Active | Sumpter, OR | LLC | Jul 24, 2024 | Active |
| DAVIDSON PHOTOGRAPHYSumpter, OR · Active | Sumpter, OR | Other | Aug 26, 2024 | Active |
| ALPINE CHAPTER #82, OESSumpter, OR · Active | Sumpter, OR | Nonprofit | Nov 6, 2024 | Active |
| SUMPTER NUGGETSumpter, OR · Active | Sumpter, OR | Other | Aug 25, 2025 | Active |
| CLEAR WINDOWSSumpter, OR · Active | Sumpter, OR | Other | Sep 5, 2025 | Active |
| TLC CLEAR VIEW WINDOWS LLCSumpter, OR · Active | Sumpter, OR | LLC | Oct 28, 2025 | Active |
| LONG'S DETAILING LLCSumpter, OR · Active | Sumpter, OR | LLC | Dec 24, 2025 | Active |
| EASTERN OREGON DISTRIBUTIONSumpter, OR · Active | Sumpter, OR | Other | Jan 21, 2026 | Active |
| BAD RABBIT FARMSSumpter, OR · Active | Sumpter, OR | Other | Jan 21, 2026 | Active |
| NUGGET CANDY CO LLCSumpter, OR · Active | Sumpter, OR | Other | Jan 21, 2026 | Active |
| THE GOLDEN PICK SALOON & GRILL LLCSumpter, OR · Active | Sumpter, OR | LLC | Jan 26, 2026 | Active |
| 47481 FOREST SERVICE RD 715 LLCGranite, OR · Active | Granite, OR | LLC | Apr 30, 2026 | Active |
| GOLD DIGGER LLCSumpter, OR · Active | Sumpter, OR | LLC | May 12, 2026 | Active |
| G0LDP0ST LLCSumpter, OR · Active | Sumpter, OR | LLC | Jun 3, 2026 | Active |
| PATRICIASWINEY LLCSumpter, OR · Active | Sumpter, OR | LLC | Jul 27, 2026 | Active |