Ohio Rev. Code Ann. § 5741.01
As used in this chapter:
(G)
(I)
(2) "Substantial nexus with this state" is presumed to exist when the seller does any of the following:
(c) Uses any person, other than a common carrier acting in its capacity as a common carrier, in this state for any of the following purposes:
(6) As used in division (I) of this section: