ALCO Parking is the largest operator of parking facilities in the Pittsburgh area. Phone: 412-323-4455 Fax: 412-323-4492 Mailing Address: Alco Parking Corp. DL Clark Building 501 Martindale St. Pittsburgh, PA 15212-5844 Email Address: customerservice@alcoparking.com Questions or comments about Airport Parking should be directed to: Grant Oliver Corporation (Grant Oliver Corp. is an Alco Affiliate who manages and operates Pittsburgh International Airport parking) Airport Office: 412-472-5050