In operation since 1966, Keymark Corporation is a full-service aluminum extrusion company, featuring in-house finishing capabilities. Based in Lakeland, Fla., the company specializes in manufacturing custom and stock extrusions and profiles for the building and construction markets. It also performs anodizing, casting, extruding, extrusion-die construction, painting as well as custom packaging. Its list of projects includes Springwood Conference Center, Mattern Residence, Snyders of Hanover and Mascaro Corporate Center. Keymark Corporation is a member of the Aluminum Extruders Council (AEC).