A Wall Street sign in front of the New York...

A Wall Street sign in front of the New York Stock Exchange on April 22, 2010. Credit: AP / Mark Lennihan

While the ranks are thinning when it comes to Long Island-based public companies, there still remain a few dozen firms that are running their operations on local soil.

But do you know what they make or do?

Let's find out.

Take our quiz above and test your knowledge of these 10 local companies.

NewsdayTV's Doug Geed is heading 'Out East' to showcase the ultimate local spots you need to explore. Credit: Randee Daddona, Michael A. Rupolo Sr.

Out East Show: Visit The Shamrock evergreen maze, Sannino Vineyard, Seven Ponds Orchard and the Warrior Ranch Foundation NewsdayTV's Doug Geed is heading 'Out East' to showcase the ultimate local spots you need to explore.

NewsdayTV's Doug Geed is heading 'Out East' to showcase the ultimate local spots you need to explore. Credit: Randee Daddona, Michael A. Rupolo Sr.

Out East Show: Visit The Shamrock evergreen maze, Sannino Vineyard, Seven Ponds Orchard and the Warrior Ranch Foundation NewsdayTV's Doug Geed is heading 'Out East' to showcase the ultimate local spots you need to explore.

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