Nexus Communications Technology
About
Nexus CT.
A pioneering managed ICT systems integrator serving Illinois organizations — networking, physical security, nurse call, and smart building technology, delivered as integrated on-premises and cloud solutions under a single provider relationship.
Our Mission
Simplifying complex technology for organizations that need their buildings to work.
We design, install, and manage the complete technology infrastructure — networking, security, nurse call, AV — under a single provider relationship. One monthly fee. One team. One call when anything needs attention.
With over 55 years of combined experience in the ICT industry, our team brings deep expertise in managed network services, infrastructure design, and deployment across healthcare, hospitality, real estate, and commercial construction — sectors where reliability and accountability aren't optional.
55+
Years combined experience
1
Provider for all your ICT needs
24/7
NOC monitoring & support
100%
Single-provider accountability
The People Behind the Work
Leadership Team

Founder
Jim Mazzarella
CEO & Managing Partner
"Our clients don't need more vendors — they need one partner who owns the outcome. That's what we built Nexus to be."
Jim founded Nexus Communications Technology with a vision to eliminate the fragmentation that plagues enterprise technology deployments. With deep roots in managed network services and a track record spanning healthcare systems, commercial real estate portfolios, and hospitality groups, Jim leads Nexus's strategic direction, major client relationships, and technology partnerships. His singular focus: making complex infrastructure simple for the organizations that depend on it.
Credentials & expertise
- Jeron-authorized distribution partner
- RCare wireless nurse call installation partner
- Healthcare ICT: hospitals, SNFs, memory care
- UniFi enterprise networking deployments
- Managed services & 24/7 NOC operations
- 55+ years combined team experience
Jim authors and reviews the technical guides and articles on this site.

Operations Leadership
Alan Messner
COO & Managing Partner
"Execution is everything. A great solution on paper is only as good as the team that delivers it — on time, on budget, with zero surprises."
Alan oversees all operational functions at Nexus — from project delivery and field deployment to service operations, vendor management, and client success. With extensive experience managing complex multi-site technology deployments, Alan ensures that every Nexus engagement is delivered with the precision and accountability that enterprise clients demand. His operational discipline is the engine that powers Nexus's single-provider promise.

What Sets Us Apart
Why Choose Nexus?
55+ Years Combined Experience
Our team has spent decades designing and running ICT infrastructure for healthcare, hospitality, and enterprise clients — most of it in Illinois buildings.
Innovation First
We install platforms we can support for the long haul: UniFi, Axis, Jeron, and RCare. If we can't stand behind it, we don't sell it.
Partner-Grade Service
24/7 monitoring and a technical team that picks up the phone. When something breaks at 2 a.m., you reach a person who can fix it.
Tailored Solutions
Every building is different. We design around your facility, your staff, and your budget — not a template.
Single Provider Model
Networking, security, healthcare & life safety, AV, and energy under one agreement. One call for all of it.
Sustainable Operations
Energy-efficient design lowers your utility bills and your footprint. We measure both.
What We Do
Our Expertise
Managed networking — UniFi Dream Machine, switches, wireless, fiber infrastructure
Physical security — 4K IP CCTV, biometric access control, AI surveillance analytics
Healthcare & life safety — Jeron & RCare nurse call, RTLS wander management, clinical communications
Smart building — IoT sensors, intelligent LED lighting, HVAC optimization, solar BMS
LED displays & signage — dvLED video walls, cloud-managed content, outdoor signage
AV/multimedia — video conferencing, digital wayfinding, interactive kiosks
Professional services — technology assessments, structured wiring design, network consulting
Ready to simplify your technology?
One conversation with our leadership team is all it takes to see how Nexus can consolidate your networking, physical security, and nurse call complexity into a single, accountable partnership.
Talk to Jim or Alan