| EAGLE CRATER LAKE INN, LLCChemult, OR · Active | Chemult, OR | LLC | Apr 16, 2014 | Active |
| DOUBLE K ENTERPRISES LLCChemult, OR · Active | Chemult, OR | LLC | Apr 24, 2014 | Active |
| CHEMULT COMMUNITY CLUBChemult, OR · Active | Chemult, OR | Other | May 23, 2014 | Active |
| SOUTH SHORE PIZZA PARLOR & STOREDiamond Lake, OR · Active | Diamond Lake, OR | Other | Jul 2, 2014 | Active |
| CHEMULT BIBLE FELLOWSHIPChemult, OR · Active | Chemult, OR | Nonprofit | Oct 27, 2016 | Active |
| STEERING WHEEL MINISTRIESChemult, OR · Active | Chemult, OR | Other | Oct 27, 2016 | Active |
| TOM HARMON LOGGING, LLCChemult, OR · Active | Chemult, OR | LLC | Feb 5, 2003 | Active |
| LOREE FIELDS, INC.Chemult, OR · Active | Chemult, OR | Corporation | Feb 24, 2003 | Active |
| MOUNTAIN MARKETChemult, OR · Active | Chemult, OR | Other | May 4, 2018 | Active |
| SHE SHED CREATIONSChemult, OR · Active | Chemult, OR | Other | May 24, 2019 | Active |
| LANTERN TRAILER PARK AND LAUNDROMAT LLCChemult, OR · Active | Chemult, OR | LLC | Jun 25, 2020 | Active |
| PONDEROSA PUBLIC HOUSEChemult, OR · Active | Chemult, OR | Other | Nov 12, 2020 | Active |
| SOUTH CHEMULT PUMICE RESOURCES, LLCChemult, OR · Active | Chemult, OR | LLC | Feb 25, 2022 | Active |
| DIAMOND LAKE RV PARKDiamond Lake, OR · Active | Diamond Lake, OR | Other | May 17, 2022 | Active |
| HILLTOP SHOP SNOWMOBILESDiamond Lake, OR · Active | Diamond Lake, OR | Other | May 17, 2022 | Active |
| MAIN STOREDiamond Lake, OR · Active | Diamond Lake, OR | Other | May 17, 2022 | Active |
| KDM ENTERPRISES, INC.Chemult, OR · Active | Chemult, OR | Corporation | Feb 5, 2004 | Active |
| DIAMOND LAKE CORRALS LLCDiamond Lake, OR · Active | Diamond Lake, OR | LLC | Aug 11, 2022 | Active |
| CHEMULT MOTELChemult, OR · Active | Chemult, OR | Other | Oct 13, 2022 | Active |
| CASCADE SNOWMOBILE RENTALS, LLCDiamond Lake, OR · Active | Diamond Lake, OR | LLC | Nov 22, 2022 | Active |
| DIAMOND LAKE LODGEDiamond Lake, OR · Active | Diamond Lake, OR | Other | May 19, 2004 | Active |
| DIAMOND LAKE RESORTDiamond Lake, OR · Active | Diamond Lake, OR | Other | May 19, 2004 | Active |
| DIAMOND LAKE CAFEDiamond Lake, OR · Active | Diamond Lake, OR | Other | May 19, 2004 | Active |
| LUPITA'S TAQUERIA LLCChemult, OR · Active | Chemult, OR | LLC | Feb 15, 2024 | Active |
| ANY PONDEROSA LLCChemult, OR · Active | Chemult, OR | LLC | Jun 17, 2024 | Active |
| JAY UMIYA LLCChemult, OR · Active | Chemult, OR | LLC | Dec 18, 2024 | Active |
| JEN'S COFFEE HOUSE & CAFEChemult, OR · Active | Chemult, OR | Other | Feb 21, 2025 | Active |
| SOUTHERN OREGON SPORTS ALLIANCEChemult, OR · Active | Chemult, OR | Nonprofit | Feb 27, 2025 | Active |
| SOUTHERN OREGON SAVAGESChemult, OR · Active | Chemult, OR | Other | Mar 12, 2025 | Active |
| FERAL AF DESIGNSChemult, OR · Active | Chemult, OR | Other | Mar 12, 2025 | Active |
| BINDERS TRUCKING & REPAIR LLCChemult, OR · Active | Chemult, OR | LLC | Mar 18, 2025 | Active |
| DAWSON HOUSE LODGEChemult, OR · Active | Chemult, OR | Other | Apr 3, 2025 | Active |
| DIAMOND LAKE RESORT & CONVENTION CENTERDiamond Lake, OR · Active | Diamond Lake, OR | Other | Sep 23, 2004 | Active |
| FLYING FOX DRONE SERVICESChemult, OR · Active | Chemult, OR | Other | Sep 5, 2025 | Active |
| CAT SKI - MT. BAILEYDiamond Lake, OR · Active | Diamond Lake, OR | Other | Oct 13, 2004 | Active |
| GROUP FORWARD ISAAC LLCChemult, OR · Active | Chemult, OR | LLC | Nov 10, 2025 | Active |
| DIAMOND LAKE IMPROVEMENT COMPANYDiamond Lake, OR · Active | Diamond Lake, OR | Corporation | May 18, 1922 | Active |
| KLAMATH TIRE RECYCLING LLCChemult, OR · Active | Chemult, OR | LLC | Jan 16, 2026 | Active |
| TLM HANDYMAN AND TREE SERVICE, LLCChemult, OR · Active | Chemult, OR | LLC | Feb 13, 2026 | Active |
| CRATER LAKE TRAVEL CENTER LLCChemult, OR · Active | Chemult, OR | LLC | Mar 24, 2026 | Active |
| FOREST PRODUCTS LLCChemult, OR · Active | Chemult, OR | LLC | Mar 26, 2026 | Active |
| M E STACEY BOOKKEEPING LLCChemult, OR · Active | Chemult, OR | LLC | Jul 6, 2026 | Active |
| BMC RENOVATIONS LLCChemult, OR · Active | Chemult, OR | LLC | Aug 27, 2026 | Active |
| CUTTING EDGE LAWN WORKSChemult, OR · Active | Chemult, OR | Other | Jan 31, 2005 | Active |
| LAL INC.Chemult, OR · Active | Chemult, OR | Corporation | Apr 6, 2006 | Active |
| CHEMULT CHEVRONChemult, OR · Active | Chemult, OR | Other | Jul 17, 2006 | Active |
| CHEMULT COMMUNITY AND TOURISM ASSOCIATIONChemult, OR · Active | Chemult, OR | Nonprofit | Aug 28, 1996 | Active |
| R & D MARKETChemult, OR · Active | Chemult, OR | Other | Aug 6, 1998 | Active |