HTS acquired RSI in 2020. RSI was founded in 2007 by David "Smitty" Smith and Bill Elhoff to provide services to Exelon (now Constellation Energy), owner - operator of North America's largest fleet of nuclear power plants with 21 reactors. RSI grew to become a critical partner, supplying project management and oversight services for outage, off-outage, and dry cask storage services. Smitty retired in 2021 after a lifetime of service in nuclear and Bill continues to work at RSI.