| Walla Walla Clinic LLC | Health Care and Social Assistance | $3,582,592 | $3,624,289 | 285 | $89.5M |  Research |
| Walla Walla Clinic Inc. | Health Care and Social Assistance | $2,000,000 | $2,026,111 | 264 | $82.9M | Research |
| Northwest Grain Growers Inc. | Transportation and Warehousing | $1,662,137 | $1,674,326 | 75 | $19.0M | Research |
| Washington Odd Fellows Home | Health Care and Social Assistance | $1,656,005 | $1,665,849 | 340 | N/A | Research |
| Walla Walla Foundry Inc. | Manufacturing | $1,488,673 | $1,498,762 | 104 | $27.2M | Research |
| Walla Walla Foundry, Inc. | Manufacturing | $1,404,931 | $1,424,561 | 99 | $24.2M | Research |
| Walla Walla Nursery Company, Inc. | Agriculture, Forestry, Fishing and Hunting | $1,332,300 | $1,346,244 | 136 | $13.9M | Research |
| T Diamond Bar LLC | Construction | $1,300,000 | $1,316,526 | 46 | $14.3M | Research |
| Stony Lake Enterprises, Inc. | Accommodation and Food Services | $1,058,900 | $1,071,872 | 312 | $55.4M | Research |
| K Vintners LLC | Manufacturing | $970,207 | $976,533 | 52 | $18.4M | Research |
| Wwghr LLC | Health Care and Social Assistance | $903,697 | $910,431 | 129 | $21.9M | Research |
| Moreno & Nelson Construction Corp. | Construction | $711,000 | $716,096 | 48 | $18.0M | Research |
| Tate Transportation Inc. | Transportation and Warehousing | $704,400 | $710,228 | 70 | $14.1M | Research |
| Walla Walla Electric, INC | Construction | $646,630 | $650,276 | 35 | $11.5M | Research |
| Cutting Edge Plumbing and Mechanical INC | Construction | $596,965 | $604,325 | 37 | $11.7M | Research |
| Walla Walla Steak Co. LLC | Accommodation and Food Services | $594,464 | $600,588 | 53 | $9.4M | Research |
| Marcus Whitman Hotel & Conference Center, LLC | Accommodation and Food Services | $553,337 | $558,931 | 72 | $22.5M | Research |
| Walla Walla Motors | Retail Trade | $526,936 | $532,074 | 39 | $9.8M | Research |
| Eritage LLC | Accommodation and Food Services | $521,489 | $526,761 | 38 | $11.9M | Research |
| Marcus Whitman Hotel & Conference Center LLC | Accommodation and Food Services | $518,099 | $520,682 | 72 | $22.5M | Research |
| Pursuit of Hoppiness LLC | Accommodation and Food Services | $496,389 | $499,163 | 127 | $15.6M | Research |
| Pocketinet Communications, Inc. | Manufacturing | $496,300 | $501,875 | 36 | $9.4M | Research |
| Young Men's Christian Association of Walla Walla | Other Services (except Public Administration) | $493,387 | $497,320 | 131 | N/A | Research |
| Young Men's Christian Association of Walla Walla | Other Services (except Public Administration) | $493,387 | $496,032 | 99 | N/A | Research |
| Badass Farming LLC | Manufacturing | $483,908 | $490,086 | 62 | $21.9M | Research |