Dealers for Tripex 2010 have not yet been set.
The following dealers attended Tripex 2009:
 | Alroy Stamps, Schaumburg IL |
| David Alex, Glenview IL |
| Cook's Stamps, Ames IA |
| Dave's Stamps, Kimberly WI |
| Heritage Stamps, Milwaukee WI |
| Lawndale Stamps, Chicago IL |
| North Bay Stamps, New Berlin WI |
| R.H.O. Postal History & Stamps, Manitowoc WI |
| Smythe's Stamp Shoppe, Onalaska W |
| University Ave. Stamps, Middleton WI |
| Vest Pocket Philatelist, Cherokee Village AR |