3SG Plus Business Process Outsourcing Helps NIPSCO Meet State Regulations Requirements BACKGROUND Northern Indiana Public Service Company (NIPSCO), headquartered in Merrillville, Indiana is one of the seven energy distribution companies of NiSource Inc. With more than 18,000 miles of pipeline serving 821,000 natural gas customers across the northern third of Indiana, NIPSCO is the largest natural gas distribution company in the...