| 2007 NAICS | 2012 NAICS | 2017 NAICS | Corresponding Index Entries | |||
| 541910 | 541910 | 541910 | Broadcast media rating services | |||
| 541910 | 541910 | 541910 | Marketing analysis services | |||
| 541910 | 541910 | 541910 | Marketing research services | |||
| 541910 | 541910 | 541910 | Opinion research services | |||
| 541910 | 541910 | 541910 | Political opinion polling services | |||
| 541910 | 541910 | 541910 | Public opinion polling services | |||
| 541910 | 541910 | 541910 | Public opinion research services | |||
| 541910 | 541910 | 541910 | Sampling services, statistical |