SJE Inc., a portfolio company of Audax Group, has purchased L.W. Allen Inc. from Gen Cap America Inc., a private equity firm focused on lower middle market buyouts.

SJE, based in Detroit Lakes, Minnesota, is a manufacturer of reliable, trouble-free control solutions that reflect quality, reliability, and functionality in the water, wastewater, and sewage industries.

L.W. Allen designs, manufactures, distributes and installs water and wastewater control systems and treatment pump systems to municipal and industrial customers. The company’s electrical control services, marketed under the Altronex brand name, provide the hardware, software and services used by operators to control water and wastewater systems.

Matt Lane, managing director at Gen Cap America, said, “We are pleased to complete the sale of L.W. Allen. During our ownership, we worked closely with the L.W. Allen team to drive operational improvements, invest in technological upgrades, and facilitate growth initiatives. We have sincerely enjoyed supporting the team and business since our initial investment in 2015, and we are confident that L.W. Allen will continue to prosper as a part of SJE.”

Jim Cook, president of L.W. Allen, commented, “We are gratified by how far L.W. Allen has come over the last several years, especially given the challenges of the last eighteen months, and we appreciate Gen Cap’s unwavering support and guidance on our growth and improvement initiatives. We look forward to joining the SJE family to continue our track record of success.”