Auxo Investment Partners, a Grand Rapids, Mich.-based private investment firm, has bought Morgan Royce Industries and Tack Electronics, two manufacturers of custom wire harnesses, cable assemblies and box builds for the semiconductor equipment, aerospace and defense, gaming, medical, transportation and energy equipment industries.

These additions follow Auxo’s purchase of Golden State Assembly, a wire and cable assembly and harness manufacturer, and expand Auxo’s wire business. Specifically, the acquisition of Tack brings together Auxo’s two funds, Auxo Growth Holdings and the Michigan Opportunity Fund into a common wire harness platform. The CEOs of MRI and Tack, Larry Johnston and Todd Maines, will remain in their current roles.