Trip Mate Inc., a full-service Kansas City travel insurance agency, has sold to Arthur J. Gallagher & Co. for an undisclosed amount. Trip Mate was established in 1989. It is led by founder and CEO Brad Finkle, who will continue to lead the operation. He'll report to Kevin Garvin, head of Gallagher's North American affinity operations. "Trip Mate gives us a great entry point into the travel insurance marketplace and expands our specialty products and services capabilities into this growing…