| Naics index | Naics index description |
|---|---|
| 621610 | Nurse associations, visiting |
| 621610 | Nursing agencies, primarily providing home nursing services |
| 621610 | Visiting nurse associations |
| 621910 | Air ambulance services |
| 621910 | Ambulance services, air or ground |
| 621910 | Emergency medical transportation services, air or ground |
| 621910 | Rescue services, air |
| 621910 | Rescue services, medical |
| 621991 | Blood banks |
| 621991 | Blood donor stations |