I used Passport Transport and they were very friendly and professional. They also give you a code and a link to a GPS site that will let you track the truck that your car is on 24/7 so you know exactly where it is at all times.
My car arrived quicker than what I initially thought. The truck it was riding one had a stable of cars that all cost at least $250k, so my car was in good company.
2006 ST Exige - GT-28RS, Darton sleeved/decked/line-honed, ARP hardware, Wiseco 8.8:1 pistons, MWR valves/springs/retainers, RC injectors, Walbro pump, CWorx oil pump, Moroso oil pan, S111 TrackMounts, Spearco intercooler, GReddy catch-can, Turbosmart BOV, Fidanza clutch/flywheel CF Panels/scoops, S111 Rear Diffuser/Rear-Panel Delete/discNOIR Brakes w/SS lines/RTDbrace/Towhook, APR CF Splitter Alpine unit w/MBQuart, CF binnacle/shifter, Schroth harness, S111 shift brace (Sold)