Trinity is a valued partner with organizations:
- American Bus Association
- National School Transportation Association
- Michigan School Business Officials
- Michigan Association of Pupil Transportation
- Internal Taxi
- Livery, and Pare Transit Association
- United Motor Coach Association
- Wayne County Transportation Supervisors Association
- Ann Arbor Convention and Visitors Bureau
- Detroit Metro Convention and Visitors Bureau
- Monroe Convention and Visitors Bureau
- Novi Convention and Visitors Bureau
