This article was originally published as part of the Grow PA solutions journalism project, published by and underwritten in part by The Chamber of Commerce for Greater Philadelphia.

From underwater robotic vehicles to ice cream, here are four companies finding success in exports.

What does an underwater robotic vehicle manufacturer have in common with an organic bug spray company, a manufacturer of stainless steel and an ice cream shop?

All four are successful Pennsylvania exporters who are growing their business and strengthening Pennsylvania’s economy.

According to the Greater Philadelphia Export Plan, launched by the Economy League of Philadelphia and the World Trade Center of Greater Philadelphia (WTCGP)