Why Choose NSI?

A Message from the President

Tom McDonald

The reason I get up each morning and come to work is because I truly enjoy helping our clients be successful.

NSI means just that – our dozens of certified technicians are totally committed to caring for our clients and providing the most responsive managed services available in Connecticut. I make sure of it, every day.

The bottom line is, the more successful our clients are, the more successful NSI will be.

We look forward to serving you.

- Tom McDonald



  • Think & Learn
  • Family
  • Have Fun
  • Humble
  • Deliver
  • More with less


NSI exists - To Help Our Clients Succeed - let's make good things happen for our clients and each other; when we do that, we all win!