| D H Research | 701-235-2303 | 112 N University Dr | Fargo | ND | 58102 |
| Dacotah Marketing & Research | 701-857-6399 | 100-1/2 NE 27 Minot | Minot | ND | 58702 |
| Dakota Interviewing Service & Market Research | 701-852-1881 | 16 Vista Dr | Minot | ND | 58703 |
| Davison Research & Consulting | 701-282-8410 | 1423 12th Street Ct | West Fargo | ND | 58078 |
| Dynamics 360 | 701-797-3601 | 402 4th St SW | Cooperstown | ND | 58425 |
| Integrated Research Group | 701-235-0462 | 1131 Westrac Dr | Fargo | ND | 58103 |
| K U Marketing | 701-839-7703 | 1201 9th St NW | Minot | ND | 58703 |
| Market Research Institute | 701-222-1903 | 107 W Main Ave | Bismarck | ND | 58501 |
| Media Dynamics | 701-258-2682 | 1121 N 13th St | Bismarck | ND | 58501 |
| Pmi Research | 701-232-3858 | 15 8th St S | Fargo | ND | 58103 |
| Teleforce Inc | 701-232-6950 | 601 28th St S | Fargo | ND | 58103 |
