From our beginnings as a pioneer in living hinges over forty years ago, J.L. Clark now produces a wide variety of all plastic containers for a multitude of applications and markets. With our extensive product development capability, which includes rapid prototyping, we are able to assist in every stage of the design cycle to assure that the end package will meet all aesthetic and functional needs while providing a package sure to excite your customers. Our ISO 9001: 2000 facility is located in Rockford, IL and contains state of the art molding and post molding equipment. For further information, please click on the Contact Us form.