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About Sentinel

When it comes to achieving a tangible ROI and sustainable performance from your IT environment, Sentinel takes the lead. Even as our services have spanned generations of technology, Sentinel has stayed at the forefront of IT developments and maintained a singular focus on providing practical and innovative solutions. With single-source accountability, Sentinel processes and teams can efficiently address a range of IT needs – from communications, to data center, to cloud and managed services. Our proven success has allowed us to expand from our original charter of providing technology maintenance services to our current standing as one of the leading IT services and solutions provider in the U.S. By aligning with many of today’s global technology leaders including Cisco, Microsoft, Dell EMC, NetApp and VMware, Sentinel solutions achieve tangible results. Sentinel services customers both nationally and internationally with operating centers in Downers Grove, IL; Chicago, IL; Springfield, IL; Detroit, MI; Grand Rapids, MI; Lansing, MI; Milwaukee, WI; Phoenix, AZ; and Denver, CO. Since 1982, opportunities at Sentinel have been created by achieving consistent growth in our core business coupled with expanded geographic reach and the rapid adoption of cutting edge technology. Our commitment to our employees has remained consistent through the years-to create a work environment that encourages creativity, an entrepreneurial spirit, fosters growth through certification and hands-on training, and rewards success! Ranked #7 in the Chicago Tribune Top 100 workplaces, midsize business category.