Search results for Hard Sided Plastic Containers are below:

http://www.pelican.com/

Pelican Products, Inc. continues to reign as the global leader in the design and manufacture of high performance protective cases, temperature controlled packaging solutions, advanced portable lighting systems and rugged gear for professionals and outdoor enthusiasts alike. Their products are depended on by professionals in the most demanding markets including fire / safety, law enforcement, life sciences, defense / military, aerospace, entertainment, industrial and consumer. -Pelican

◊ Note-> Not all of their products are made in the USA - but some of their products (like their line of 'Protector' Cases) are manufactured in the USA.

http://www.planomolding.com/

We've been supplying outdoor enthusiasts with equipment protection and storage solutions for over 60 years, and there's a 4 in 5 chance that if you own a tackle box, it was made by Plano. -Plano

◊ Note-> Some of their plastic molded products are manufactured in the USA - product origin details may not be displayed on their website so an inquiry to company representatives might be helpful in order to determine the country of origin for a particular product.