(519) 451-1793
IT that just works, so your business can keep moving.
Keystone Technologies delivers reliable, expert IT services to small and medium-sized businesses across Southwestern Ontario, from IT services in London, Ontario to Sarnia and Woodstock. Managed services, cybersecurity, cloud, VoIP and compliance, handled top to bottom.
Comprehensive IT, customized to your business
From day-to-day support to long-term strategy, we deliver top-to-bottom solutions tailored to your team, not a one-size-fits-all package.
Managed IT Support
Proactive monitoring, fast helpdesk response and complete user support for your whole team.
Learn moreCybersecurity
Layered network security: monitoring, firewalls, EDR, phishing training and verified backups.
Learn moreNetwork & Infrastructure
Wireless networking, structured cabling, firewalls and VPN, designed, deployed and maintained for performance, security and growth.
Learn moreCloud Solutions
Microsoft 365, Azure and hybrid cloud, migrated, optimized and managed without downtime.
Learn moreTelephony & VoIP
Microsoft Teams Phone System, SIP trunking and Twilio-powered voice, one extension that follows your team everywhere.
Learn moreCompliance & Audit
PIPEDA, PHIPA, SOC and industry-specific compliance, documented, tested and ready.
Learn moreIT Consulting & vCIO
Strategic guidance, IT roadmaps and budget planning, without a full-time CIO salary.
Learn moreIT Assessments
Independent infrastructure reviews that identify risks, gaps and cost-saving opportunities.
Learn moreAI Security
Adopt AI safely, readiness assessments, governance and guardrails so your team can use AI tools without leaking data or losing control.
Learn moreLocal expertise, enterprise-grade execution.
We're an MSP built around how SMBs actually operate, close enough to be on-site when it matters, structured enough to deliver the same standards as a Fortune 500 IT department.
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One team, one number
Every client has a dedicated account manager who knows your environment, not a rotating queue.
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Transparent pricing
Flat-rate, predictable plans. No surprise invoices or per-ticket gotchas.
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Same-day on-site
Local technicians for urgent issues across Southwestern Ontario, no waiting on a national queue.
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Security-first by default
Every engagement starts with a baseline security posture, patching, MFA, EDR and verified backups.
A partner that scales with you
Whether you're a 10-person office or a 200-seat operation, our model adapts without renegotiating every quarter.
Built for the businesses that keep Southwestern Ontario running
Municipalities, professional services, property management, manufacturing, healthcare and more.
Municipalities
Property Management
Professional Services
Manufacturing
Healthcare
Education
Nonprofit
Real Estate
Insurance
Legal Services
Government & Public Sector
Automotive
Agriculture
Construction
Accounting
Onboarding without the chaos
A clear, documented path from first call to fully managed, most clients are live within four weeks.
Discover
A no-pressure conversation about your environment, your team and what's actually slowing you down.
Assess
Independent review of your network, security posture, licensing and risk exposure, with a written report.
Onboard
Documented cutover plan, asset inventory and security baselines applied with zero downtime.
Operate
24/7 monitoring, monthly reviews and a quarterly roadmap, so IT becomes a strategic asset, not a fire to put out.
Clients who trust us to keep things running
Real businesses across Southwestern Ontario, from municipalities to property managers to professional service firms.
Keystone has carefully managed our network growth and continuously risen to meet challenges. We treat them as part of our team.Joan Hall ICORR Properties
Their team responds fast, communicates clearly, and we always know what's happening with our systems. It's the difference between IT being a cost and IT being an asset.Richard Holland Municipality of Brooke-Alvinston
Reliable, knowledgeable and genuinely invested in our success. We don't think twice about who handles our IT, Keystone does.Jim Burns Village of Point Edward
A London-based MSP that picks up the phone
When London businesses search for IT services, they usually have one of three problems. They're growing and their patchwork of one-person IT support isn't scaling. They've outgrown their current provider, slow response times, surprise invoices, work that gets done but doesn't get explained. Or they're starting from scratch and want one partner who can stand up everything from email to phones to security without juggling six vendors.
Keystone Technologies has been delivering IT services in London, Ontario for over 30 years. We work with small and medium-sized businesses across Southwestern Ontario in professional services, healthcare, manufacturing, legal, and financial services. Our team is local, when you call, a real person answers, and when something needs to be on-site, we're already in town.
What working with us actually looks like day-to-day: a help desk that responds in minutes, not days. A dedicated account manager who knows your environment by name, not by ticket number. Quarterly business reviews where we explain what we did, what's coming up, and what we recommend. Monthly invoices with no surprises. And the discipline to say "you don't need that" when a flashier vendor would have sold it to you.
We're not the cheapest IT provider in London, and we're not trying to be. We're the team you call when "IT just works" is more important than the line item on the budget.
Common questions
What's the difference between an MSP and just having an IT person?
An MSP (Managed Service Provider) is a team of specialists with overlapping coverage, ongoing monitoring tools, and documented processes. A single IT person is one human with one calendar, when they're sick, on vacation, or focused on a project, your support coverage goes with them. For most SMBs in the 10–100 employee range, an MSP costs about the same as a junior internal hire and delivers significantly more capability.
Are you cheaper than hiring in-house IT?
For most small businesses, yes, but more importantly, we're cheaper than the cost of NOT having proper IT support. A reasonable comparison: a junior IT person costs $60–$80K per year fully loaded; a senior systems administrator $100–$130K. Our managed IT services for a similar-sized business typically run $1,500–$5,000 per month, and we cover the whole stack (networking, security, cloud, phones, vendor management), not just whatever the one hire happens to know.
How fast can you respond when something breaks?
Most critical issues are responded to within 15 minutes during business hours, with active resolution starting immediately. Non-critical tickets are typically resolved within 4 hours. After-hours support is included for outages and security incidents on most plans.
Do we sign a long-term contract?
Our managed IT agreements are month-to-month after the first three months. We don't believe in locking clients into multi-year deals, if we're not delivering value, you should be able to leave without a penalty clause. This keeps us honest.
We're already with another MSP. Should we switch?
That's the wrong first question. The right first question is "is our current provider delivering what we'd expect, given what we're paying?" Many of our new clients started with an independent IT assessment from us, no obligation to switch, which gave them an honest read on their current situation. Some chose to stay with their provider with a clearer ask. Others chose to switch. Both are good outcomes.
Ready for IT that just works?
Get a no-obligation conversation with a senior engineer, not a sales script.