A vetted, merit-ranked shortlist of the top managed IT services providers in Longueuil and the Montreal south shore, scored on real Google ratings, verified services and bilingual local coverage.
Ranked by rating & verified data · Updated June 2026
13 managed IT service providers in Longueuil, QC are ranked below, each shown with its verified Google rating and review count. Leading the list are HiloTech, Nebiatek, and Proximit. Sort by rating, team size, service mix and certifications, then request quotes.
Holding a 4.9-star rating across 105 Google reviews, HiloTech supplies managed IT, cybersecurity, and Microsoft 365 to Longueuil-area businesses. Notable: Longueuil's most-reviewed managed IT, with 24/7 security and no long-term contracts.Source: company website & Google Business Profile, verified June 2026
Nebiatek covers Longueuil businesses with cybersecurity, managed IT, and Microsoft 365 plus a 5-star rating across 29 Google reviews. Notable: CISSP and CPA-led cybersecurity governance for accounting firms.Source: company website & Google Business Profile, verified June 2026
Holding a 5-star rating across 27 Google reviews, Proximit supplies managed IT, cybersecurity, and cloud services to Longueuil-area businesses. Notable: SOC/MDR cybersecurity and vCIO with a 16-minute average response time.Source: company website & Google Business Profile, verified June 2026
Entreprise Cool T.I. (20 years of transparent, cost-effective IT consulting for the Rive-Sud) supplies managed IT, network management, and VoIP and unified communications to Longueuil organizations and holds a 5-star Google rating across 38 reviews.Source: company website & Google Business Profile, verified June 2026
L&N Technologies - Networking and cybersecurity-trained founders serving Rive-Sud SMBs - is a Longueuil-based IT provider bringing managed IT, network management, and cybersecurity to Longueuil-area businesses, scored 5/5 across 8 Google reviews.Source: company website & Google Business Profile, verified June 2026
Quesys - 20+ years of managed IT and cybersecurity with a no-cost recovery warranty - is a Montreal-based IT provider bringing managed IT, cybersecurity, and cloud services to Longueuil-area businesses, scored 4.9/5 across 47 Google reviews.Source: company website & Google Business Profile, verified June 2026
CTL Alpax Technologie (Microsoft and Fortinet-partnered IT, cybersecurity and telephony under one roof) supplies managed IT, cybersecurity, and network management to Longueuil organizations and holds a 4.9-star Google rating across 18 reviews.Source: company website & Google Business Profile, verified June 2026
Qualitech Services Informatiques - 35+ years of managed IT, cybersecurity and data protection for the south shore - is a Longueuil-based IT provider bringing managed IT, cybersecurity, and network management to Longueuil-area businesses, scored 4/5 across 1 Google review.Source: company website & Google Business Profile, verified June 2026
Solutions PRP covers Longueuil businesses with managed IT, network management, and help desk support plus a 5-star rating across 4 Google reviews. Notable: Outsourced in-house IT department with a dedicated consultant, since 2002.Source: company website & Google Business Profile, verified June 2026
Impartition A2 (Sustainable, personalized IT outsourcing (infogerance) for Longueuil SMEs) supplies managed IT, network management, and Microsoft 365 to Longueuil organizations and holds a 5-star Google rating across 6 reviews.Source: company website & Google Business Profile, verified June 2026
LKB360 Solution TI covers Longueuil from Brossard with managed IT, cybersecurity, and cloud services plus a 4.9-star rating across 11 Google reviews. Notable: Custom, budget-respecting managed IT on a Huntress and NinjaOne security stack.Source: company website & Google Business Profile, verified June 2026
Holding a 4.5-star rating across 35 Google reviews, S3 Technologies supplies managed IT, cybersecurity, and cloud services to Longueuil-area businesses. Notable: 110+ staff offering both fully managed and co-managed IT to growing SMEs.Source: company website & Google Business Profile, verified June 2026
Les Consultants Re-Bit provides managed IT, help desk support, and IT consulting to Longueuil-area businesses. Les Consultants Re-Bit is a French-language Canadian IT services provider helping businesses set up and maintain their systems, with an emphasis on documentation and rapid support response.
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The recurring issues a managed IT partner is hired to solve on the south shore.
Quebec's Law 25 carries penalties up to $25 million or 4% of worldwide turnover, plus breach reporting to the Commission d'acces a l'information. Many SMBs lack the in-house expertise to stay compliant.
With 1 in 6 Canadian businesses hit by a cyber incident in 2023, Longueuil SMBs need endpoint protection, managed detection and tested data backup, not just antivirus.
Aerospace supply chains and Law 25 push firms toward Canadian-hosted backups and cloud. The right MSP keeps data in Canada and documents it.
Lean IT teams cannot cover 24/7 monitoring, security and projects at once. Co-managed IT lets a local MSP fill the gaps without replacing staff.
Microsoft 365 and Azure projects drift without a partner to plan and execute. The right MSP can migrate workloads securely and on schedule.
Rive-Sud teams expect service in French and English. A local, responsive bilingual MSP keeps help desk support fast and clear for every user.
Longueuil anchors the Montreal south shore with 13,000+ businesses and 170,000+ jobs, led by an aerospace cluster of 78 firms around Pratt & Whitney Canada and the Canadian Space Agency. That industrial gravity means local MSPs build for compliance from day one, helping clients comply with Quebec's Law 25 and federal PIPEDA, and to scale securely without a large in-house team.
Aerospace and advanced manufacturing, life sciences and pharmaceuticals, healthcare, and professional services drive Longueuil's economy. Each carries its own uptime and compliance demands, so Rive-Sud MSPs build around proactive network monitoring, data backup and disaster recovery rather than break-fix support, with bilingual help desk support and vCIO guidance.
About 1 in 6 Canadian businesses were hit by a cyber incident in 2023, and national recovery spending doubled to $1.2 billion. Longueuil MSPs increasingly lead with endpoint protection, managed detection and Law 25 and PIPEDA-aligned controls, plus Canadian data residency, to help clients protect data and meet the Commission d'acces a l'information.
Most Longueuil and Rive-Sud providers price per managed device or user per month, generally $100 to $250 depending on scope, security and whether you need fully managed or co-managed IT. Predictable, fixed-fee pricing lets local businesses budget technology the same way they budget rent, and makes it easy to outsource day-to-day IT or to augment an internal team.
Longueuil's historic downtown core, home to the Co-cathedrale Saint-Antoine-de-Padoue, the metro terminus and a fast-growing office and mixed-use district.
The aerospace and industrial hub around Montreal/Saint-Hubert Airport and the Canadian Space Agency, with Pratt & Whitney Canada and dozens of suppliers.
Dense residential and commercial south-shore communities along the REM line, with retail, healthcare and professional-services SMBs.
East-end agglomeration cities with light industry, logistics parks and a strong base of family-owned businesses.
Why local businesses are investing in managed security.
Scams and fraud hit 50% of impacted Canadian businesses in 2023; smaller south-shore firms with lean IT are the softest targets and need layered, proactive defences.
More than 1 in 8 affected businesses faced ransomware in 2023. Tested, Canadian-hosted data backup and rapid disaster recovery are now non-negotiable.
Suppliers to Pratt & Whitney Canada and aerospace primes face strict security and audit expectations. MSPs align logging, encryption and access controls to those requirements.
Recovery spending doubled to $1.2 billion nationally. 24/7 managed detection and endpoint protection shorten dwell time and limit damage.
Managed IT covers several stacked layers, not one flat plan. The list below shows the functions Longueuil providers usually bundle at each level of coverage.
Your provider becomes the entire IT function. With no in-house technicians on payroll, the MSP owns every system, ticket, and vendor relationship.
Best for: Small and mid-size firms of 10–150 users running without in-house IT
Your in-house IT staff runs daily operations while the provider covers overflow, plugs skill gaps, and supplies specialist depth on demand.
Best for: Growing companies of 50–500 users backed by 1–5 internal IT staff
Covers password resets, everyday connectivity, app installs, printer faults, and M365 user requests. Most close in under 30 minutes, worked by front-line helpdesk staff.
Handles server faults, network trouble, security incidents, tangled application errors, and failed backups. Escalated to senior technicians who hold deeper system access.
Owns infrastructure design, cloud architecture, large migrations, live disaster-recovery execution, and in-depth security investigations. Run by senior engineers and solution architects.
Common compliance regimes Longueuil MSPs help clients meet.
Quebec's Law 25 modernizes private-sector privacy under the Commission d'acces a l'information, with fines up to $25 million. MSPs build the controls, logging and breach response it requires.
Canada's federal privacy law governs personal data for federally-regulated and cross-border activity. Managed IT partners build the processes it requires.
South-shore suppliers and SaaS firms increasingly need SOC 2 or ISO 27001 attestations. MSPs align logging, encryption, retention and access to support audits.
Businesses handling card data must meet PCI DSS. MSPs segment networks, manage endpoints and document compliance.
Typical local pricing and market context.
Figures are typical Longueuil and Rive-Sud ranges; final pricing depends on security scope, devices and SLAs.
Most MSP contracts run 1–3 years, so the choice sticks. Work through the framework below to compare providers and sidestep an expensive mismatch.
We rank Longueuil MSPs on verified Google ratings (market median 4.9, range 4.0 to 5.0), review depth, real managed-IT focus, certifications and bilingual local coverage. Use the criteria below to match a provider to your business.
Read recent Google reviews for responsiveness and follow-through, not just the star score.
Make sure the firm genuinely delivers managed IT, not break-fix repair, hardware resale or pure software development.
If you have internal IT, confirm the MSP offers true co-managed IT engagements to support your team.
For Law 25 and aerospace work, confirm where data and backups live, and that they stay in Canada.
Strategic IT roadmaps and budgeting from a vCIO help you scale technology with the business.
Explore vetted MSP shortlists in other Canadian business centres.
See the Quebec MSP Market Report for the statewide ranking, pricing and city-by-city coverage.