| Business | Phone |
| Adams Knight & Assoc 12 3rd St N, Humboldt 50548 | (515) 332-4362 |
| Forest Specialties Inc 1210 4th Ave N, Humboldt 50548 | (515) 332-1034 |
| Humboldt Workshop Inc 15 3rd St N, Humboldt 50548 | (515) 332-4983 |
| Humboldt County Historical 601 N Main St, Humboldt 67842 | (620) 369-2228 |
| Phoenix Group 106 6th St N, Humboldt 50548 | (515) 332-3323 |
| Jumpgate Networks 226 Sumner Ave, Humboldt 50548 | (515) 332-1822 |
| Opportunity Village 620 Sumner Ave, Humboldt 50548 | (515) 604-6104 |
| Power Co-Op Employees Credit 1208 13th St N, Humboldt 50548 | (515) 332-4096 |
| Tracy Goodell Hog Site 1769 230th St, Humboldt 50548 | (515) 332-4228 |
| Monsanto Co 405 13th St N, Humboldt 50548 | (515) 604-6247 |
| Mary's Bar 402 Sumner Ave, Humboldt 50548 | (515) 332-7997 |
| Prairie Partners Resource 1301 6th Ave N, Humboldt 50548 | (515) 332-1720 |
| Upper Des Moines Opportunity Humboldt 50548 | (515) 332-7007 |