AE Industrial-backed Broadtree Partners, a lower-middle market private equity firm, completed the acquisition of Seanair Machine, a manufacturer of precision aerospace components. Financial terms were not disclosed. "Broadtree is excited to continue the Seanair legacy. The Nawrockis have created an impressive company, and we look forward to building on a strong foundation. We're also happy to partner with AEI to further accelerate growth and continue to drive excellence in manufacturing and customer service," Johannes Zwick, Broadtree Managing Partner.