Find Phone number, Location Address and all other information of Rent a car Services in Islamabad Geo Builders & Rent A Car Islamabad on Branches.pk, Pakistan’s Largest Branches Directory. You can contact them directly on Phone number +92-51-4438845, or you can visit their location in person, address location is: Office # 7, Plot # 14, Basement, Twin City Plaza, I-8 Markaz, Islamabad.