Wertheimer Box, A SupplyOne Company Email Format

Packaging and Containers ManufacturingIllinois, United States11-50 Employees

Wertheimer Box Corp., based in McCook, Illinois, operates as a corrugated packaging and display manufacturer serving brands that need custom shipping boxes, branded packaging, ecommerce mailers, and specialty retail displays. The company runs a large 303,000-square-foot plant that operates around the clock and offers inside-outside printing to apply logos and brand designs to packaging.

As a long-established Chicago-area supplier with roots dating back to 1939, Wertheimer Box has built a multi-decade presence in the local packaging market. Its offerings are focused on protecting products during shipping while supporting brand presentation across ecommerce and retail channels. In January 2026, Wertheimer Box Corp. was acquired by SupplyOne Inc., a larger value-added distributor with corrugated converting capabilities, marking a notable recent development.

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