Arcline Investment Management, a growth-oriented private equity firm, completed the acquisitions of Electric Power Systems, a provider of a full suite of electrical testing and engineering services, and North American Substation Services, an independent provider of installation, repair, and maintenance services, from Industrial Growth Partners, a private investment firm. Industrial Growth Partners will retain a minority investment in the combined company. Financial terms were not disclosed. "We couldn't be more excited to partner with both Arcline and NASS to establish the leading independent electric infrastructure service platform in North America. The combination of EPS and NASS brings together the market leaders in our respective service categories and allows us to better serve the entire breadth of our customers' technical service needs," Steve Reed, EPS CEO.