The blog contains the location of the airport Chauffeur |Town Car service 

Pick up – Baggage Claim/Limo Reception, Terminals A, B, C and E

Meet us in:

• Terminals A, B:  Limo Reception Area in Baggage Claim
• Terminal C:  Baggage Claim
• Terminal E:  Limo Reception Area on the Arrivals Level
• Follow signs to “Ground Transportation”
• Exits are marked with “Limousines” or “Limos”

Note:  There are no arrivals in IAH Terminal D.  International passengers who departed from Terminal D will arrive in Terminal E international arrivals hall.

All limousine drivers picking up passengers at the airport must be badged. Drivers are prohibited from soliciting fares.  Do not accept a ride without a prearranged reservation.

Drop off – All Terminals, Departures Level

Reference http://www.fly2houston.com/iah/limos-sedans/