Stephentown Engineers Professional 347 State Route 43 XC Associates provides complete engineering and manufacturing services to supply Engineered Composite (carbon and fiber) Products to meet advanced structure/components for military, aerospace and general industry. Stephentown NY Engineers Professional X C Assoc Inc www.xcassociates.com Carbon and Fiberglass Composite Structures Advanced Composite Materials and Structures Design and fabrication of advanced composites Ground based components airborne and shipboard components Avionics and Missile components. Carbon and Fiberglass Composite Structures Advanced Composite Materials and Structures Design and fabrication of advanced composites Ground based components airborne and shipboard components Avionics and Missile components. Business Reviews X C Assoc Inc Testimonials