Need Referral for Reputable Collection's Company

I have a court date scheduled for late next week to evict a tenant that owes me money. I would appreciate any references to a collections company that does business in Utah that you have found to be reputable and has gotten money from a tenant once they have vacated your rental. I would like to have a representative of a collections company join me at the courthouse next week in case the tenant does not show up and the Judge awards me three times the amount owed in damages.

Appreciate the help!