The financial details of the transaction have not been disclosed.
Rohrer is the largest supplier of high-visibility retail consumer packaging in the US, using advanced manufacturing technologies to provide innovative retail packaging solutions.
The company has been owned by private equity firm ShoreView Industries since 2009.
Wellspring managing partner John Morningstar said: “We believe Rohrer is a unique business in the consumer packaging space, given its scale and proficiency in manufacturing both paper and plastic substrates.
“The company is well-positioned to grow organically and we believe it can become the consolidator of choice in the industry, given its prior experience executing and integrating sizeable acquisitions.”
Rohrer’s capabilities include printed paperboard products, thermoformed plastic products and ezCombo, the industry’s largest combination-run programme for printed and thermoformed packaging.
The company also offers design services, heat-seal tooling production and heat-seal machinery distribution.
It serves a variety of retail industries, including office, beauty and hardware, as well as the automotive aftermarket.
Following the acquisition, Rohrer will keep its CEO, its existing management team and employees.
The company will continue to operate from its headquarter in Wadsworth, Ohio, and seven additional manufacturing facilities across North America.
Rohrer CEO Steve Wirrig said: “We believe Wellspring shares our vision of delivering innovative consumer packaging solutions. This partnership supports the continued growth of our business so we can provide industry-leading packaging solutions for our customers.”
Global investment bank Harris Williams served as advisor to Rohrer in the transaction.