For a fifth year, Inc. magazine has named Tiger Optics LLC to its 5000 list of fastest-growing private companies in the US.

Among manufacturers on the 2013 list, Tiger ranks as the 57th fastest-growing concern, jumping from 76th place on the year-earlier list.

In the greater Philadelphia area, the magazine rated Tiger Optics as the 39th fastest-growing private company, and 50th among the top 100 Pennsylvania companies.

The company makes all of its products in Pennsylvania, while 70 percent of its sales occur in foreign markets. Its 2012 revenue of $9.4 million rose 188 percent from its 2009 revenue. Previously, Inc. magazine named Tiger Optics to its 500 | 5000 lists in 2012, 2011, 2009 and 2008.

Nationwide, Tiger ranks 1,995th on the 2013 Inc. 500|5000, rising from 2,285th place on the 2012 list.