Tonka Bay Buys NAI Cranes

Tonka Bay Equity Partners and Boulder Brook Partners have acquired NAI Cranes LLC, a Woburn, Mass.-based provider of custom overhead cranes and related services. No financial terms were disclosed.


Tonka Bay Equity Partners (“Tonka Bay“) today announced the acquisition of the NAI Cranes, LLC (“NAI”). NAI is Tonka Bay’s ninth platform acquisition in their current investment fund. Boulder Brook Partners of Wellesley, MA co-invested in the transaction.


Based in Woburn, MA, NAI is a leading provider of custom overhead cranes and related services suited to a variety of different applications and industries. A true turnkey supplier, NAI provides cranes, components, runways, and installation and repair services, with a strong commitment to customer service. NAI’s website is


About Tonka Bay Equity Partners

Located in Minnetonka, Minnesota, Tonka Bay Equity Partners acquires and invests in small and medium sized companies in the manufacturing, distribution and business services sectors. Tonka Bay manages two private equity funds with combined capital of $200 million. Its limited partners include major financial institutions and high net worth individuals. For more information, call (952) 345-2027 or visit