35 years of making IT invisible,
so businesses can do business.
Founded in 1991 in North York. Same address, same phone number, same job: keep the technology under your feet quiet enough that you forget it is there.
How we got here
Started in North York. Still here.
Primary Support Systems opened its doors at 300 Supertest Rd in 1991, when "computer support" still meant a beige tower under a desk and a 56k modem in the closet. We were a handful of engineers helping small Toronto offices keep their PCs running, their printers connected, and, eventually, their first websites online.
Three and a half decades later, the work looks different. The address does not. We still answer the same phone number, from the same office, for many of the same clients. A few of them have been with us long enough that we set up the network they were using when their kids were born, and we set up the laptop those kids brought to their first job.
We are not a holding-company roll-up, an MSP-as-a-service franchise, or a private-equity portfolio brand pretending to be local. We are a Toronto small business that has been doing IT for other Toronto small businesses since well before "managed services" was a category.

What we focus on
Four buckets cover most of what businesses hire us for.
We do other things too, walk-in repair, web hosting, vCIO work, but if you are reading this page to size us up, here is the work that pays our rent.
Managed IT, the boring kind
Help-desk tickets, patching, backups, license cleanup. The stuff that keeps offices running. Fixed monthly fee. Real engineers, not bots.
Cloud + Microsoft 365
We register your domain, set up M365 properly, migrate inboxes, configure shared mailboxes for the partners. Quiet improvement, but a real one.
Cybersecurity that fits the size
MFA, endpoint protection, DKIM / SPF / DMARC, phishing training. Right-sized for SMBs, no enterprise-grade overkill, no shelf-ware nobody uses.
Networks, servers, hardware
Office network design, server-room setup, smart switches, firewalls, the wiring under the floor. Clean, documented, supportable from day one.
How we work
The four commitments we are willing to put in writing.
Anyone can claim to be "responsive" or "tailored." Here is what those words mean to us, in language a client can hold us to.
Someone always picks up the phone.
No call queue, no chat-bot triage, no offshore tier-1. The number on our site rings a real engineer in our North York office during business hours, every day.
Fixed monthly pricing. No surprises.
One number per month for unlimited support, monitoring, and routine maintenance. Surprise invoices are how clients learn to distrust their MSP, we do not send them.
We tell you the why, not just the what.
Every fix comes with a one-line note on what caused it and how to prevent it. Most clients understand their own stack better after a year with us than they did before.
We document everything we touch.
Network diagrams, server inventories, password vaults, change logs. If we get hit by a bus tomorrow, the next person can pick up where we left off. That is the standard.
Thirty-five years, six chapters
The technology changes. How we show up does not.
- 1991
Founded in North York
A small team, a handful of clients, beige PCs, the Internet about to happen. We have answered the same phone number ever since.
- Late 1990s
When the Internet became a business tool
Web hosting, business email, the first "should we have a website?" conversations. We built the infrastructure to say yes, and have run hosting in-house ever since.
- 2000s
Servers, virtualization, real backups
SBS, Windows Server, redundant disk arrays, and the discipline of testing that the backup actually restores. We ran the on-prem era so our clients did not have to.
- 2010s
Cloud, Microsoft 365, real remote work
Migrating clients off in-office servers to M365 and Azure, plus the security posture remote work actually requires, well before "the cloud" was the default answer.
- 2020
Remote-first overnight
When the offices closed, our clients’ teams did not lose a day. Laptops, VPN, M365, the help-desk number that kept ringing while everything else went quiet.
- Today
Bigger questions, same team
The questions used to be about printer drivers and email setup. Now it is whether staff should let Copilot read the partner mailboxes, what the cyber-insurer means by EDR, whether the backup will actually restore on the day it has to. The technology is more powerful, and more dangerous, than ever. Same team, same address; still the people clients call when the question matters.
Worth a 20-minute call?
Tell us what is breaking. We will tell you how we would fix it.
No deck, no salesperson, no follow-up emails for the next year unless you ask. Just a real engineer scoping the work and giving you a fixed-fee number.
