Founded in 1982, Sentinel is an IT solutions provider headquartered in Downers Grove, Illinois. The company delivers a range of services across security, communications, systems and networks, software applications, and cloud and managed IT, serving enterprise clients.
Sentinel operates from multiple offices across the United States, including locations in Chicago, Springfield, Phoenix, Lansing, Grand Rapids, Milwaukee, and Denver. This geographic footprint supports its ability to serve clients across several states.
The company has been recognised as a top workplace every year since 2012, reflecting a sustained commitment to employee satisfaction and organisational excellence.






