I have identified mobile wood-fired pizza catering businesses in (and near) the Twin Cities that make the effort to be easily found. All of these are (or will be) listed on my Business Ovens page (local to Minnesota and Wisconsin) and on my Mobile Oven page in the Mobile Oven Businesses section (which is worldwide).
- Big River Pizza
- Olive Pizza (added 9/26/2011)
- Pizza Festa di Viaggio (permanently relocated to Nashville, TN; sorry)
- Red Wagon Pizza Company (added 07/09/2012)
- Russell Glover Farm (River Falls, WI, but also serving the Twin Cities)
- Thyme to Entertain
- Wandering Fire (St. Croix Falls, WI, added 6/8/2012)
I have not used any of these businesses. I don't know how much they charge.
If you find similar businesses in Minnesota (or elsewhere), leave me a comment, and I will add them to my link collection.