- Trail Runners
- Race Organizers
- Associations and Clubs
- Assistants of Professional Team
- Suppliers of services and products
- Volunteers in sports events
- Family and Friends of Trail Runners
TRM addresses its services also to sports people of other disciplines who wish to experience or practice Trail Running. For example, taking in account some related sports:
- Running and Ultra Marathons
- Triathlon
- Ski touring
- Cross country skiing
- Mountain bike
- Trekking