Garrity Tool Company began in business in 1986 and incorporated in 1996. GTC has grown from a very humble beginning to a major supplier of machining and engineering services throughout the Defense, Aerospace, Biomedical, and Commercial market segments. Don Garrity has applied his extensive experience as a civilian employee of the Navy, as a Contract Monitor; to the processes, procedures and capabilities of the Garrity Tool Company. The company has displayed steady, managed, growth ever conscious of maintaining a diverse customer mix to help protect it against market volatility.

Garrity Tool Company was acquired by the Ottenweller Company of Fort Wayne, Indiana in 2013. Ottenweller is a large scale fabrication company. GTC compliments OCI and the two companies work very well together. Don Garrity was able to achieve one of his primary goals in business and that was to see that GTC would continue after his departure. OCI’s acquisition and plans for GTC for the long term made this goal a reality.