BOSTON–(BUSINESS WIRE)–Allied Services Group (“Allied”), a platform company of the investment firm Bear Castle Capital (“Bear Castle”), has acquired Substations, Inc. (“SSI”). Allied is a market-leading contractor for a wide array of electrical solutions. At present, Allied serves a diverse customer base across five states in the Western and Southern United States. Founded in 2013, SSI specializes in high voltage substation and switchyard installation, modifications and maintenance services a