Costco Wholesale » Business Connections Go back to directory. Add to Address Book. Costco Wholesale Costco WholesaleMarketing Work 6255 E. Grand Road Tucson AZ 85712 work Work Phone: (520) 886-9563work Work Email: moc.octsoc@10tkm704wINTERNET Website: Website Connections Business Directory | Leaflet | Wikimedia 6255 E. Grand Road Tucson AZ 85712Get Directions