Located in SE Portland's historical industrial district in a restored art deco building, Quadrant's 30 plus year story is embodied in its location. Heart, courage, and sweat equity has restored a Portland Classic into a showroom and office that integrate the best lifestyle technology in a way you'd want to see in your home or business.


One common Vision

Our company had humble beginnings over 30 years ago when the owner and founder, Gary Nedelisky, began working out of his garage. The values he ascribed to back then have continued to be the foundation for our company: honesty, integrity, hard work, disciplined, and consistent results. Quadrant Systems is committed to delivering exceptional quality in design, engineering, documentation, craftsmanship, installation, and support.

It's simple. Everyone at Quadrant Systems has the number one goal of providing you with the best experience possible. That's why many of our clients have been with us for 30 years. Our high employee retention rate is also a strong indicator that our team thrives on the work we do and the clients we serve. It also means that when you return to Quadrant Systems, even years after your first contact, it's likely that you will work with the same people you have come to know and trust.

Our staff believes in building relationships with our clients and getting to know your preferences so that we can offer the best technology fit for your lifestyle, your home, your business.


Let us show you around. This is a fun place to visit. We've designed the space to make you feel at home, so you can visualize your project from the comfort of our couch. We encourage you to stop by. We would be proud to show you around!

Meet our Team

Our team is comprised of professionals who have a passion for the custom electronics industry and who have spent years developing skills and gathering knowledge. Many of our team members have been with us for 10, 15 and even 20 years. It is the combination of depth and breadth of knowledge and passion, that guarantees that our clients will get the best in technology and service.


Our Technicians are certified as Low Voltage Electrical Journeymen in Oregon and Washington. In addition, our team has received certifications from:

  • Savant

  • Elan

  • Lutron Lighting

  • Lutron Motorized Shades

  • Marantz

  • Panasonic Digital Phones

  • Kantech Access Systems

  • Silent Knight

  • Universal Remote

  • Paradigm


  • ISF

Quadrant Systems has received the prestigious award of being listed as CEPro Top 100 Custom Installation Companies in the United States every year since 2005.