The National Tooling & Machining Association (NTMA) is a collection of the industry's best companies all over the United States, like Overton Industries. NTMA members are committed to ethical behavior, developing individuals into industry leaders, and excellence in service and quality.

Since 1913, The Precision Metalforming Association (PMA) has assisted the industry through advocacy, training, and networking. PMA prides itself on delivering great tools to help quality companies like Overton Industries to become successful.

Since 1973, the American Mold Builders Association (AMBA) has been the leading industry trade association of U.S. mold manufacturers. AMBA promotes excellence among mold builders, serves as a voice for the industry, and engages in education and advocacy for excellent mold builders.

The Manufacturers Association for Plastics Processors (MAPP) provides members with plastics processing training, cost reduction programs, and other services for the plastics processing industry. MAPP is a resource for companies like Overton to stay ahead of an ever-changing plastics industry, to help deliver state-of-the-art solutions for clients.