System One hires Heneghan to lead government unit

John Heneghan previously led ECS Federal in a four-year period that prioritized growth in artificial intelligence and cyber, among other areas.
The bulk of System One's federal work resides in its Gap Solutions and KeyLogic subsidiaries, respectively acquired in 2017 and 2023.
System One has hired a new chief executive for its government solutions unit in John Heneghan, a nearly-three decade industry veteran and former president of the ECS Federal business.
Heneghan joins System One to lead the staffing and outsourcing services provider’s federal-facing subsidiaries in Gap Solutions and KeyLogic, as well as the more state-and-local focused Quadel.
System One’s Monday release on the appointment cites Heneghan’s background as spanning artificial intelligence, cybersecurity, digital modernization, and enterprise transformation efforts across the federal landscape.
Heneghan led ECS Federal as president from 2022 until February of this year, when he was appointed consulting transformation officer for the Everforth parent company amid its rebrand from the former ASGN name.
His tenure at ECS Federal was marked by the unit’s push to expand its portfolio in areas such as artificial intelligence, machine learning, cybersecurity, cloud computing and IT modernization.
System One significantly grew its federal market presence in 2017 with the acquisition of Gap Solutions, then moved to do so again in 2023 by purchasing KeyLogic.
Gap and KeyLogic together have recorded $152.4 million in unclassified prime contract revenue over the trailing 12 months, according to USASpending.gov data.
Gap’s two largest customers are the National Institutes of Health, plus Immigration and Customs Enforcement. KeyLogic’s main client is the Energy Department.
System One is co-owned by the private investment firms Oaktree Capital and StepStone Group, the former of which is private equity. Oaktree first backed System One in 2020, then StepStone acquired its stake in the fall.