CompuServe was an independent firm headquartered and operated within Columbus before being acquired by WorldCom and AOL. Sterling Commerce (acquired by IBM in 2010) was headquartered near Dublin, adjacent to a large Qwest (now CenturyLink) facility.
CompuServe, an independent company based in Columbus, was purchased by WorldCom and AOL.  Sterling Commerce, located near Dublin, was situated next to a significant Qwest (now CenturyLink) facility.