WISA News and Events

Below is a list of recent news related to the Wisconsin Security Association

WISA Welcome’s Denning Electronics



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, Vigitron, Overly Door, National Custom Hollow Metal, Osprey, and FRP Architectural. Because of the support of these manufacturers, our base services are free to users, distributors, and dealers/integrators.

We are 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. We continue to serve the Guest House, BSA, Hesed House, and the Batavia Food Pantry.

Visit their website for a complete list of services. 

WISA Welcome’s Dnesco Electrical Inc.




Dnesco was purchased in November of 1997 by Joseph Klein and became Dnesco Electric, Inc. Dnesco experienced further growth with the acquisition of Elm-Brook Electric in 2002 and Meer Electric in 2007.

These mergers allowed Dnesco to strengthen its design/build department and bring together more resources to better serve its customers. In 2010 Dnesco Electric expanded its capabilities to include a Communication/Data division. The addition of a Communication/Data division allowed Dnesco to provide a more complete service to many of its customers.

In November of 2016, Gregg Schwister and Stacey Elmer purchased Dnesco Electric. Dnesco continues to experience steady growth as well as provide quality commercial, industrial electrical and Communication/Data work.

Gregg Schwister, President of Dnesco, is a Master Electrician with over 20 years’ experience in the industry. He runs all aspects of Dnesco through contract management/negotiation, overseeing estimating, facility management, insurance, bonding, vehicles, and project management.

Stacey Elmer, Executive Vice President has over 30 years’ experience in the industry. Having been on some extraordinary projects over the years, Stacey brings the hands-on experience from the field into the office. Stacey oversees project bidding/estimation and project management.


Visit their website for a complete list of services.

WISA Welcome’s Keller & Associates




Keller & Associates is a professional Sales & Marketing firm that works with prestigious manufacturers within the Low Voltage & Custom AV industry.

Capitalizing on our distribution partners and dealer network- we embrace leading-edge technology and utilize analytics to win in the market. We strive to provide best in class representatives to our manufacturers, distributors, and dealers.

Visit their website for a complete list of services. 

WISA Welcome’s Barrier Security Systems




We serve the Greater Fox Valley and a majority of Wisconsin. We hope that you choose us for your residential and commercial security needs.

There are many types of security systems. One of them being an environmental security system, which can help you protect your home or business from environmental strains. These can be set to monitor doors and windows, but they can also detect smoke, heat, carbon monoxide, freezing temperatures, and rising water. Systems commonly include alarm verification technology that greatly reduces the chance of false alarms. Prior to authorities being dispatched, operators use audio verification to be in contact at the alarm location. If the alarm is accidental, the user can cancel the alarm by providing an authorization code.

At Barrier Security, it is our priority to keep you and your employees protected. We make sure that your business is kept safe, not only from criminals, but from other elements as well. We use only modern, high speed equipment to securely protect and monitor your business.

Barrier Security offers a no cost business evaluation and we would like to talk to you about a security solution that would best fit your commercial security needs. We have a variety of packages to choose from, depending on your business size, budget and requested features. The best part? It is an affordable way to keep your employees safe.


Visit their website for a complete list of services. 


WISA Welcome’s True AV Solutions





Clientele industries include Hospitality, Corporate, Healthcare, Government, Retail and other Various Professions.

Every design aspect is custom tailored to the needs of each client’s needs and budget. Only the most reputable manufacturers offering top of the line commercial products with innovative and reliable hardware are selected.

We Provide and Install these products with a complete suite of Audio Visual Consultation, Design, Implementation, Management and Support Services.


Visit their website for a complete list of services. 


Your Cart