Map for Caastle Inc. Map for Caastle Inc. Search | Advanced Search | New Members | Coupons and Discounts | All Categories Advertising & Media >> Customer Computer Programming Services Caastle Inc. 5650 C Green Pointe Drive NorthGroveport, OH 43125 | directions 229-200-0331 Visit Site Need to update your categories or expand your listing? Or want to learn how your business can become a part of the Chamber? Contact us at membership@columbus.org for assistance.