O2 Investment Partners announced the promotion of Sean Darin to Principal.

Luke Plumpton announced the promotion of Darin: “I am very excited to announce the promotion of Sean [Darin] to Principal. Since joining as an Associate in 2016, Sean has been an invaluable member of our team and a critical part of establishing O2 as a leading lower-middle market private equity firm. Having had a hand in dozens of our closed transactions in his time here, he’s earned the respect of our colleagues and portfolio partners alike, and he brings a tremendous amount of value to O2 and our portfolio companies. We are thrilled to have him on our team as we continue to build toward the future.”

Darin has been with O2 since 2016 and has been involved with many of O2’s current and past platform investments, including NTI Connect and EIS Holdings (both exited), as well as BerlinRosen and 4M Building Solutions, serving on the boards of directors of each.

This promotion follows an active 2023 for O2, in which it completed 21 acquisitions and had the final close of its oversubscribed $445 million Fund IV. O2 is eager to continue building on this success throughout 2024.