Berlin Packaging, Chicago, a full-service supplier of plastic, glass, and metal containers and closures, announced Feb. 8 that it had entered into a definitive agreement to acquireAll-Pak Inc., a Pittsburgh-based rigid packaging supplier. The combined company will have annual revenues approaching $500 million.

“This exciting transaction unites two highly complementary businesses, and will enable us to continue to unlock value for our customers, suppliers, and employees,” says Andrew T. Berlin, chairman and CEO of Berlin Packaging. “We believe the transaction will significantly enhance our ability to realize faster growth, lower system costs, and improved productivity for our partners.”

Berlin Packaging, founded in 1898, is one of North America’s largest suppliers of stock glass, plastic, and metal containers and closures. Berlin Packaging is a portfolio company of Investcorp, an alternative-asset management firm.

All-Pak, formed in 1958, is a supplier of rigid packaging products and services to a wide variety of markets.

The combined company will be headquartered in Chicago, while All-Pak will maintain a significant operational presence at all of its geographical locations.

The transaction is expected to close by the end of February.