They include Zidell Marine, a ship construction company which, from 1961 until 2017, specialized in the building of barges, and Tube Forgings of America Inc.

In September 2016, the company announced that it is preparing to shut down its barge-building business permanently and close its South Waterfront factory in 2017.

In 1955, Emery Zidell also founded Tube Forgings of America, Inc. (TFA), which supplies welding fittings for a wide variety of applications.

The project budget was $20 million and was directed at capping and removing dangerous contaminants, restoring wildlife habitat, and re-sloping and replanting the banks.

[10][11][12] Today, Zidell Marine and Tube Forgings of America remain family-run businesses, headed by Emery's son Jay.

[2] In September 2016, the company announced that it was preparing to shut down its barge-building business permanently and discontinue use of its 33-acre (13 ha) South Waterfront property in 2017.