I'm using one called Bridging Cultures Relocation. www.bridgingculturesrelocation.com. I'm dealing with them from the U.S. and will be meeting with them in a couple of weeks in Zurich. They seem competent and helpful if you want to check them out. The number is 41.44.720.65.08. Ask for Roswitha van den Berg. You can mention Michael from New Orleans was the referral if you like, although it won't get you any special treatment!
Good luck with your relocation!