Updated
Managed IT Services for Markham Businesses
Managed IT for Markham’s tech corridor, Asian-parent subsidiaries, and nuclear supply chain
monitoring & MDR
fixed monthly pricing
certified security leadership
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A 30-minute review with a senior Canadian engineer. We’ll look at your IT and security and show where you’re most exposed.
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- ✓ Your biggest cybersecurity risks, ranked
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Fusion Computing delivers managed IT services in Markham, Ontario for technology firms, Asian-parent and US-parent subsidiaries, and the nuclear supply chain across York Region. We run the full stack — Microsoft 365 with MFA and conditional access, Huntress 24/7 MDR, SentinelOne EDR, patching aligned to CIS Controls v8.1, backup and documented disaster recovery — under one CISSP-led team and one monthly per-user cost.
Markham carries the highest concentration of ICT workers per population in Canada and is home to roughly 1,500 technology and life-science companies, alongside the Canadian head offices of IBM, AMD, Honda Canada, and Lenovo (City of Markham economic development). That density is why managed IT here is usually shaped by a parent-company control framework, a developer-environment policy, or buyer-side supplier risk — not a generic help-desk SLA.
“Managed IT in Markham has to cover three things at once: security controls, compliance artifact, and practical help-desk productivity. We don’t split those across three vendors, one team, one accountability chain.” — Mike Pearlstein, CISSP, CEO, Fusion Computing
Managed IT for Markham’s three distinctive tech and engineering sectors
Tech firms (IBM Canada and AMD ecosystem)
Markham anchors Canada’s densest ICT corridor, with IBM’s Canadian head office and AMD’s chip-design centre nearby. For software and hardware firms we secure source-code repositories, signing keys, build pipelines, and developer endpoints with hardened devices, SentinelOne EDR, and Huntress 24/7 MDR — without imposing controls that break release velocity.
Asian-parent and US-parent subsidiaries
Many Markham operations are the Canadian arm of a parent in Asia or the US. When the parent’s security team sends over a control framework with quarterly evidence expectations, we run the gap assessment, deploy the missing controls (Microsoft 365 with MFA and conditional access, EDR, MDR, DMARC), set the access-review cadence, and produce evidence in the format the parent’s GRC tool ingests, aligned to CIS Controls v8.1.
GE Hitachi nuclear supply chain (BWRX-300 ecosystem)
GE Hitachi Nuclear leads BWRX-300 small-modular-reactor deployment in Canada from its Markham team. The supplier base picking up that work carries CNSC-aligned controls and Ontario Power Generation supplier-risk obligations. We document the supplier-side IT and access-control evidence those programs require.
Three managed-IT patterns we see in Markham every quarter
These are the failure modes we repeatedly fix. If any of them sound familiar, keep reading.
The cross-border subsidiary whose parent suddenly wants ISO 27001 evidence
A 50-person Markham office has been running fine on a small IT team. Parent’s security team in Tokyo, Beijing, or Cupertino emails over a control framework with quarterly evidence expectations and a deadline. We run the gap assessment, close the gaps, and produce evidence in the format the parent’s GRC tool ingests, aligned to CIS Controls v8.1.
The tech firm whose source-code repos and developer endpoints are wide open
A Markham software firm has grown fast and never locked down its developer environment. Source-control access is shared, endpoints are unmanaged, and there is no audit trail. We deploy hardened endpoints with EDR, add MDR coverage, and put source-control access on a documented review cadence, scoped to the team’s release rhythm rather than a generic policy.
The GE Hitachi or OPG supplier with no CNSC-aligned documentation
Engineering firm just won supply-chain work into the BWRX-300 program. Customer-side supplier risk asks for IT control documentation. We produce the evidence pack OPG and CNSC supplier-risk reviewers accept, and we maintain it quarterly.
What makes managed IT in Markham different
Cross-border architecture as routine work
Where does client PII sit, which cloud region hosts the tenant, does the audit trail cross to a Beijing or Tokyo or Cupertino parent, who signs the DPA. These questions are weekly for our network architects, not annual. Multilingual stakeholder mapping (Mandarin, Cantonese, Japanese) is part of onboarding when needed.
Tech-firm and developer-environment security
Source-code repos, signing keys, build pipelines, developer endpoints, hybrid cloud. We deploy hardened endpoints, MDR on developer machines, source-control access auditing, and a developer-access review cadence. We do not impose ops-team controls that break dev velocity.
Nuclear and OPG supplier evidence
GE Vernova Hitachi runs its Canada small-modular-reactor program from Markham, and the BWRX-300 build at OPG’s Darlington site began in 2025. Suppliers picking up that work face buyer-side risk reviews. We document the access controls, change management, incident response, and audit-log retention those reviews expect and keep the evidence current quarterly.
On-site across Markham and the Highway 7 corridor
Our dispatch reaches the Markham Centre, Buttonville, Cathedraltown, Cornell, Unionville, and Highway 7 / Highway 404 corridors for on-site work during business hours. Critical after-hours on-site is included in the contract.
Managed IT Services in Markham: What’s Included
TL;DR
For a Markham technology firm, an Asian-parent subsidiary, or a nuclear-supply-chain engineering shop, managed IT has to carry three loads at once: security controls, compliance evidence, and day-to-day help-desk productivity. Fusion runs all three from one CISSP-led team rather than splitting them across three vendors with three accountability gaps.
Fusion runs the full managed IT stack for Markham businesses: 24/7 monitoring, patching, Microsoft 365 administration, cybersecurity, backup, and a help desk staffed by engineers who already know your environment, your line-of-business apps, and your parent-company or buyer-side reporting obligations. One predictable per-user monthly cost. No per-incident surprises.
- 24/7 remote monitoring and patch management aligned to CIS Controls v8.1
- Help desk staffed by senior engineers, not tier-1 script readers
- Managed cybersecurity: Huntress 24/7 MDR, SentinelOne EDR, Microsoft 365 with MFA and conditional access, DMARC
- Microsoft 365 administration and Copilot enablement
- Backup and documented disaster recovery
- Virtual CIO, compliance-evidence packs, and strategic IT planning
- On-site support across Markham Centre, Unionville, Thornhill, Cornell, and Milliken
Help Desk and Remote IT Support
Your Markham team contacts senior engineers directly. Most issues resolve remotely on first contact. No ticket queue, no script readers.
Security, Patching, and Compliance
Every engagement includes MFA enforcement, endpoint protection, and automated patching aligned to CIS Controls v8.1. CISSP-certified security leadership.
Microsoft 365 and Cloud Management
Full M365 administration: licensing, Teams, SharePoint, OneDrive backup, and Copilot readiness. One team manages your entire cloud stack.
Managed IT Services Pricing in Markham
How Markham pricing is scoped
- A Markham R&D software firm needing developer-endpoint security and privileged-access management is scoped on user count plus the IP-protection controls it requires.
- A Canadian subsidiary with parent-company ISO 27001 or SOC 2 evidence requirements adds the quarterly evidence-pack deliverable to the per-user base.
- A cross-border tech operation that needs DPA management and a dedicated vCIO is scoped with those as named line items, not surprises.
Fusion prices fully managed IT in Markham on a fixed per-user monthly basis. No hidden fees, no per-incident surcharges. One predictable monthly cost covers monitoring, help desk, security, patching, and strategic planning, and we name the number in a fixed-fee assessment first.
Co-managed IT is priced separately based on scope. Contact us for a custom quote →
Why Markham Businesses Switch to Fusion
Most businesses that switch to Fusion do it after a bad experience with a previous MSP. The pattern is consistent: tickets that go three days without resolution, vague answers from whoever answers the phone, and a support model built around billing hours rather than fixing problems.
Fusion resolves most issues on first contact. The difference comes from how we staff: you reach an experienced engineer, not a tier-1 rep reading from a script. That engineer already knows your Microsoft 365 environment, your line-of-business applications, and your hardware. For a Markham subsidiary that also means the engineer understands the parent-company evidence cycle behind your tickets.
Fusion is Canadian-owned and has operated since 2012. Your data stays in Canada. Security leadership holds the CISSP. The standard for cybersecurity certification. CIS Controls v8.1 alignment is built into every managed IT engagement.
Fusion Computing is a CISSP-certified managed service provider that has supported Canadian businesses since 2012. Security operations align to CIS Controls v8.1, the same framework used by enterprises, applied to organizations with 10 to 150 employees. Fusion Computing is Canadian-owned, and all client data remains in Canada.
Need help desk and break-fix support instead of full managed IT? See IT Support Markham →
Part of Fusion’s national managed IT services network.
Related Resources
How Fusion Works in Markham
Every engagement follows the same structured process, whether you’re a 10-person office or a 200-employee operation. No guessing, no scope creep, no surprises.
Assessment
We map your Markham environment, your Microsoft 365 tenant, and any parent-company or buyer-side control requirements, then return a fixed-price scope. No guesswork on cost.
Onboarding
We deploy the security stack — MFA and conditional access, EDR, Huntress MDR, patching, backup and tested disaster recovery — document the environment, and stand up the help desk so your team has a single team to call.
Ongoing Support
From there it’s ongoing managed support with 24/7 monitoring, quarterly business reviews, and proactive infrastructure planning so your technology evolves with your business.
This process works because it has been refined across Canadian businesses since 2012. We know what breaks, what gets missed, and what actually moves the needle for Markham businesses — whether the pressure is a parent-company audit, a developer-security gap, or a buyer-side supplier review.
Three Markham scenarios we’ve worked through
Names and some details changed. Patterns are exact.
A Markham Centre subsidiary with a Tokyo-parent ISO 27001 demand
The parent’s security team emailed over an Annex A control mapping with a deadline. We ran the gap assessment, deployed Microsoft 365 with MFA and conditional access plus SentinelOne EDR, established the access-review cadence, signed the incident-response runbook, and produced the first quarterly evidence pack in the format the parent’s GRC tool ingests, aligned to CIS Controls v8.1.
A Markham software firm with under-secured developer endpoints
A growing dev shop along the Highway 7 corridor had shared source-control access and unmanaged laptops. We rolled out hardened endpoints with SentinelOne EDR and Huntress MDR, put repository access on a documented review cadence, and enforced MFA and conditional access on Microsoft 365 — scoped to the team’s release schedule so nothing slowed the build pipeline.
An engineering firm winning supply work into the BWRX-300 program
A Markham engineering firm landed supply-chain work tied to the GE Vernova Hitachi BWRX-300 small-modular-reactor program at Darlington. Buyer-side supplier risk asked for documented IT controls. We assembled the evidence pack — access controls, change management, incident response, asset management, and audit-log retention — aligned to CIS Controls v8.1, and we maintain it on a quarterly cycle as the program scales.
Frequently Asked Questions
For the full national overview, see our managed IT services hub.
Need managed IT services nearby? Fusion supports the managed IT services needs of businesses across the surrounding area, including managed IT services in Richmond Hill, managed IT services in Vaughan, and managed IT services in Stouffville. See our managed IT services hub for the full national overview. Same Canadian-owned team, same CISSP-led oversight, tailored per location.
Our parent company in Tokyo, Beijing, or Cupertino wants ISO 27001 or SOC 2 evidence from our Markham operation. Can you produce it?
Yes. Cross-border subsidiary work is a meaningful share of our Markham book. We run the gap assessment against the parent’s control framework, deploy the missing controls (Microsoft 365 with MFA and conditional access, SentinelOne EDR, Huntress 24/7 MDR), establish the access-review cadence, and produce evidence in the format the parent’s GRC tool ingests. Controls are aligned to CIS Controls v8.1.
Our software firm has a strong dev culture. Will Fusion’s security work slow down our developers?
No. We deploy hardened endpoints, MDR, and source-control access auditing without imposing ops-team controls that break dev velocity. Developer-access reviews are quarterly, not weekly. Build pipelines and signing-key handling get reviewed against your release cadence, not against generic policy.
Can you be on-site in Markham the same day?
Yes. We reach Markham Centre, Unionville, Thornhill, Cornell, and the Highway 7 / Highway 404 corridors for on-site work during business hours, and critical after-hours on-site is part of the contract.
We are an engineering firm winning supply-chain work into the GE Hitachi BWRX-300 program. What IT evidence will buyers ask for?
Supplier-risk reviewers on regulated nuclear programs typically ask for documented access controls, change management, security incident response, supplier risk management, asset management, and audit logging with retention. We document and maintain that evidence pack and keep it current on a quarterly cycle. GE Vernova Hitachi runs its Canada small-modular-reactor program from Markham, and the BWRX-300 build at OPG’s Darlington site began in 2025, so supplier-side evidence demand is rising across the corridor.
Do you handle multilingual stakeholder coordination for Asian-parent subsidiaries?
Yes when needed. Cross-border subsidiary work in Markham regularly requires coordination between local IT, executive sponsors, and a parent-company security team in Asia. We handle the technical translation of requirements and the documentation pattern-matching so the parent’s auditor and the local team are reading the same controls.
Why does Markham need managed IT framed differently than the rest of the GTA?
Markham has the highest concentration of ICT workers per population in Canada and is home to roughly 1,500 technology and life-science companies plus the Canadian head offices of firms like IBM, AMD, Honda Canada, and Lenovo. That mix means a Markham managed-IT engagement is usually shaped by a parent-company control framework, developer-environment security, or buyer-side supplier risk rather than a generic help-desk SLA.
Reviewed personally by Mike Pearlstein, CISSP.
Before you fill out the form
Here is what happens after you hit send
- Within 1 business day, you hear back from Mike.Mike Pearlstein, CISSP, reviews every inbound request himself. Not a junior rep. Not a sales pitch.
- A 30-minute scoping call, in plain English.We size the work, name a price, and tell you straight up if we are not the right fit. No 80-slide decks.
- Local team. Data stays in Canada.Your tickets are answered from our Mississauga office. Your data sits on Canadian infrastructure, by design.
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Tell us about your business and what your current IT looks like. We respond within one business day with a fixed-price scoping call.
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How much does managed IT support cost for a Markham business?
Fusion prices managed IT in Markham on a fixed per-user monthly basis. The number depends on user count, locations, scope, and security requirements. No per-incident surcharges and no hidden fees — we name the price in a fixed-fee assessment before you commit.
Do you provide on-site IT support in Markham?
Yes. Fusion serves Markham and the surrounding York Region with both on-site and remote support across Markham Centre, Unionville, Thornhill, and Cornell, coordinated from our Toronto-area operations.
Can you act as our outsourced IT department in Markham?
Yes. Many Markham businesses with 10 to 75 users use Fusion as their complete outsourced IT department. Help desk, monitoring, security, vendor coordination, and strategic planning. All from one team.
What cybersecurity services are included?
All Fusion clients get Huntress MDR, SentinelOne endpoint protection, Fortinet firewalls, and 24/7 SOC monitoring. CIS Controls v8.1 aligned.
Do you offer co-managed IT?
Yes. Fusion works alongside your internal IT team for monitoring, security, after-hours coverage, and overflow support. Learn more →
Book a Consultation About Markham
A Fusion engineer follows up within 1 business day. Not a sales rep. An engineer. You get a straight answer on what your environment would cost to support and what we’d change in the first 30 days.
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What is changing in Markham right now
GE Vernova Hitachi’s BWRX-300 small modular reactor was approved for construction by the Province of Ontario and Ontario Power Generation, and the first-unit build at OPG’s Darlington site began in 2025 (GE Vernova). With the program’s Canada headquarters in Markham, supplier-side IT-evidence demand is rising across the corridor — and that is reshaping IT roadmaps for the engineering firms picking up the work.
The Markham business context Fusion plans around
Markham is widely described as Canada’s high-tech capital and holds the highest concentration of ICT workers per population in the country, with roughly 1,500 technology and life-science companies and the Canadian head offices of firms such as IBM, AMD, Honda Canada, and Lenovo (City of Markham economic development; City of Markham). That mix shapes how a Markham managed-IT engagement is scoped.
Anchor employers and corridors
- IBM’s Canadian head office on Steeles Avenue East
- AMD’s Markham chip-design centre
- Honda Canada’s head office
- GE Vernova Hitachi’s Canada small-modular-reactor program (BWRX-300)
- Lenovo and other multinational subsidiaries along the Highway 7 / Highway 404 corridor
Industry mix and compliance pressure
- Technology firms: developer-environment and source-control security
- Asian-parent and US-parent subsidiaries: parent-company SOC 2 / ISO 27001 evidence cycles
- Nuclear supply chain: buyer-side supplier-risk evidence for the BWRX-300 program
- Healthcare and life sciences: PHIPA and PIPEDA obligations
- Professional and financial services: CPA Ontario, LSO, CIRO (formerly IIROC), PCI-DSS
GE Vernova Hitachi’s BWRX-300 was approved for construction by the Province of Ontario and Ontario Power Generation, and the first-unit build at the Darlington site began in 2025 (GE Vernova). With the program’s Canada headquarters in Markham, supplier-side IT-evidence demand is rising across the corridor.
What Markham clients say on Google
Their staff is very professional, reliable and trustworthy, able to handle absolutely all your IT needs and keeping all your data safe and secure. A must have for any business looking for IT solutions.
Truly a blessing to have them by your side and watching your back while you take care of day to day tasks.
The first-month guarantee
If Fusion does not hit our stated 93% first-contact resolution rate in your first month of service, month two is on us. No arguments, no proration games. We measure it, we show you the report, and if we miss, you do not pay. We have not missed yet.
Security program led by
Mike Pearlstein, CISSP
CEO, Fusion Computing · 14 years advising Canadian businesses on security architecture
Talk to Fusion today
100 King Street West, Suite 5700
Toronto, ON M5X 1C7
(416) 566-2845
64 Hatt Street, Mailbox 44
Dundas, ON L9H 7T6
(416) 566-2845
Serving the Lower Mainland
(604) 800-7788
Toll-free 1-888-541-1611
