Your single point of contactfor everything IT.
Managed IT, cyber security, and compliance for Maryland businesses and organizations — one team that knows your systems, one number to call, and technology you never have to think about. We come to you.
- Free assessment
- No call centers
- We come to you
Years serving Maryland
Rating on Google & Facebook
Monitoring, every day of the year
Personal support — no call centers
Built for your world
We work with all kinds of Maryland businesses — and we go deep in two.
Police departments and property management firms have IT needs that don’t fit a generic playbook. We’ve invested in real specialization for both, while still being a great fit for everyone else.
What we do
Everything you need under one roof.
From a single office network to a fleet of locations under managed care — we cover it all, locally.
Why OnSite
Enterprise-level IT, without the headache.
From small offices to growing teams, we keep your network, devices, and data running smoothly and securely — with people you can actually call and talk to.
Local hands. Always.
Real technicians you can call, visit, and recognize. Every job done by someone who lives where you do.
Engineered for uptime.
Always-on monitoring, automated patching, and tested backups so your day isn't decided by a downed PC.
Security that moves with you.
Layered defense across endpoints, identity, and email — built to help meet common cyber-insurance requirements.
One number to call.
When something goes wrong, you reach the same people who set things up. No tier-one queue.
How it works
From first call to fully managed.
Free IT assessment
We walk your environment — devices, network, backups, risks — and give you a plain-English read on where you stand. No cost, no obligation.
Stabilize & secure
Urgent gaps get fixed first: patching, backups, endpoint protection, and the one thing that's been breaking every week.
Managed & monitored
Ongoing care — monitoring around the clock, helpdesk Mon–Fri 8–5, and local techs on-site when hands are needed.
What clients say
Don’t take our word for it.
“This place is terrific! I walked in with an older laptop that wouldn't start. Jerry was extremely personable as soon as I walked through the door. Instead of just taking my computer and looking at it later, Jerry took the time right then and there to diagnose (and fix!!!) my problem. I couldn't believe it. Took about 25 mins. and cost $25. Would definitely recommend. I'm sure that I'll go back.”
“A great place with great employees willing to help anyone with any issues with their computers. In and out quickly and was treated with much respect. I recommend them to all my friends and family. Thanks again!!”
Rated five stars by our clients on Google and Facebook.
Local businesses and homeowners across the Baltimore area.
Ready when you are.
Tell us about your team and what you need from your IT. We’ll respond within 24 business hours with a proposal you can actually read — no jargon, no lock-in pressure.
Talk to a human
- 410-574-2234You reach the people who do the work
- support@onsite-computers.comAnswered within 24 business hours
- Mon–Fri · 8 AM – 5 PMMonitoring runs around the clock
- 1012 Wilson Point Rd, Middle River, MD 21220Locally owned & operated