About Denning

Denning Electronics has solved big communications, protection, and surveillance problems by providing sales and technical support to distributors, security system integrators, engineering design firms, architects, and system users. Our specialties include outdoor intrusion detection; video and audio surveillance; video/audio/data networks and transmission; access control; and ballistic/blast/chemical/acoustic barriers that safeguard critical facilities.

Denning has from our offices in the greater Chicago, Illinois metropolitan area, provided consultation and equipment for some of the highest profile facilities in the United States.  We serve schools, banks, manufacturers, food producers, distributors, performing arts centers, and retail establishments.

Our collaboration with professionals worldwide and experience with such a range of applications ensures our clients’ security and protection. Denning represents leading manufacturers including Southwest Microwave, DSI, Vingtor Stentofon, Overly Door, Tiger Door, National Custom Hollow Metal, and FRP architectural. Because of the support of these manufacturers, our base services are free to users, distributors, and dealers/integrators.

Denning is also committed to volunteer service. If you feel there’s a worthy cause in need of our help, please call and we’ll do our best to contribute.