ISPT Publishing, LLC ISPT Publishing, LLC Search | Advanced Search | New Members | Coupons and Discounts | All Categories   Other >> Writers ISPT Publishing, LLC 3960 Knapford DriveColumbus, OH 43230 | map | directions (614) 565-7315 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.