Croften Horse Transport.
Excellent service, reasonable cost...good horse people.
I have used them to ship several times.
They are in BC however do a west coast USA run evert 2 weeks or so...and do go back east.
I second Mary Mykytyn. She picked up a mare at my barn for a friend and delivered her in California, went perfectly as Ingrid said. Mary is a very nice lady. Would use her again and I recommand her as often as I can. Her prices are really reasonnable too.