Global Parking Operations, Inc. (GPO) calls itself the "Houston High Rise Specialist", and you only need to take a glance at their high-profile clients to see the truth behind the statement. They are the leading provider for hospitality services. Contrary to the company's name, GPO does not only provide valet services, they also offer doormen, concierge, porters, and baggage delivery, as well as garage management and consultation in the list of services they offer. While they specialize in high-rise condominiums, they also cater to corporate events.

Many of GPOs clientele have praised the company for the employee's ability to step up to the plate and cater to whatever it was that their clients, and their client's clients, needed.