30 Lines 30 Lines Search | Advanced Search | New Members | Coupons and Discounts | All Categories Advertising & Media >> Digital Marketing Agency 30 Lines 121 East Nationwide BoulevardColumbus, OH 43215 | map | directions (614) 859-5030 Visit Site Connect With Us We build the online presence for your physical locations. 30 Lines is a digital marketing agency based in downtown Columbus, specializing in results-focused digital marketing for local businesses. 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.