Sinclair & Rush, Inc.
Plastics ManufacturingMissouri, United States51-200 Employees
Sinclair & Rush, Inc. is a plastics manufacturer with more than five decades of experience, based in Arnold, Missouri. The company operates globally, with three U.S. facilities and operations in the United Kingdom, Australia, and China. It uses multiple manufacturing processes and markets its products under six brands, all centered on protecting products during manufacturing, shipping, storage, display, and use. Its offerings include caps, plugs, flange covers, tubing, and clear packaging such as clamshells, blisters, trays, and folding cartons for industrial and consumer goods, as well as grip products under the GripWorks and Hunt Wilde brands used in bicycles, power tools, and lawn and garden equipment. In July 2025, Sinclair & Rush completed the acquisition of Protoco Enterprises, expanding its manufacturing footprint.