These Canadian companies specialize in cybersecurity and related IT services. The list includes large enterprises such as OpenText, which focuses on information management, and KPMG Canada, a provider of audit, tax, and advisory services. Other significant companies are 1Password, which protects business data, and BlackBerry, known for its intelligent software and services for enterprises and governments.
A notable pattern is the concentration of companies in major Canadian cities, particularly Toronto and Waterloo, which house several of these larger firms. The companies generally fall into either software development, IT services and consulting, or direct computer and network security.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
OpenTextopentext.com
It specializes in Information Management, assisting businesses of all sizes in securely capturing, governing, and exchanging information globally. |
22,990 | |||
| 2 |
KPMG Canadakpmg.com
Providing audit, tax, and advisory services to public, private, nonprofit, and public sector organizations across Canada with professionalism. |
10,017 | |||
| 3 |
1Password1password.com
Protects business data, employee accounts, and sensitive information with secure access, sharing, and integration into existing systems. |
3,074 | |||
| 4 |
BlackBerryblackberry.com
Provides intelligent software and services to enterprises and governments, enabling transformative applications, new revenue streams, and innovative business models with safety, security, and reliability. |
2,005 | |||
| 5 |
Converge Technology Solutions Corp.pellera.com
A services-led IT & Cloud Solutions provider offering advanced analytics, cybersecurity, cloud platforms, and digital workplace offerings with global support |
1,709 | |||
| 6 |
Convergence Networksconvergencenetworks.com
A leading Managed Services & Security Provider focused on identity-driven security strategy, offering integrated solutions with a trust-based culture |
1,472 | |||
| 7 |
Calian Groupcalian.com
Employees engineer reliable solutions solving complex problems for healthcare, communications, learning, and security sectors. Diverse products, services and solutions globally. |
1,396 | |||
| 8 |
N-able
Provides comprehensive software solutions for managed service providers, enabling remote monitoring, management, security, and data protection for their small and medium-sized business clients. |
1,341 | |||
| 9 |
Sherwebsherweb.com
Offering a cloud marketplace with value-added services to support IT professionals in technical operations and the expansion of their cloud expertise |
729 | |||
| 10 |
BlueCatbluecatnetworks.com
Provides services and solutions for automated DDI management, network security, multicloud management, and network observability supporting cloud adoption and automation. |
728 | |||
| 11 |
ISMismcanada.com
A technology solutions provider focused on addressing complex business problems in Canada, leveraging local presence and global connections to deliver tailored services |
694 | |||
| 12 |
Online Business Systemsobsglobal.com
Leading digital transformation and cybersecurity consultancy delivering dramatic business results for clients in Canada, USA, and EMEA #ResultsGuaranteed Trusted team, recognized workplace |
639 | |||
| 13 |
Commissionnaires du Qu茅beccommissionnairesquebec.ca
A renowned NPO providing security solutions while supporting veterans in transitioning to civilian life, with a focus on employee well-being |
627 | |||
| 14 |
eSentireesentire.com
Managed detection and response services protecting organizations worldwide from cyber threats using machine learning, threat hunting, and expert security operations. |
580 | |||
| 15 |
Microservemicroserve.ca
IT solutions company providing managed services, IT security, modern workplace solutions, data center services, cloud services, and more in BC and Alberta |
518 | |||
| 16 | 477 | ||||
| 17 |
Wipro Limited Canadawipro.com
Leading global IT consulting & BPO services provider using cutting-edge technologies to help clients thrive in the digital era |
464 | |||
| 18 |
GeoComplygeocomply.com
GeoComply provides fraud prevention and cybersecurity solutions for online industries, detecting location fraud and verifying user digital identities with advanced technologies |
459 | |||
| 19 |
WBM Technologieswbm.ca
A Western Canadian IT solutions provider with expertise in Data & Security, End User Computing, Managed Print Solutions, and Enterprise Service Desk |
441 | |||
| 20 |
Jolerajolera.com
This company offers next-generation managed services and solutions to MSPs and IT providers worldwide, with a focus on top-notch customer experience |
405 | |||
| 21 |
MSP Corpmspcorp.ca
This company acquires and empowers high-performing Managed Service Providers in North America, providing resources, technology, and business support to enhance their services |
398 | |||
| 22 |
Commissionaires BCcommissionaires.bc.ca
A Canadian not-for-profit organization providing security solutions, innovative technology, and cybersecurity services to protect assets and support former military and RCMP members |
388 | |||
| 23 |
Truliootrulioo.com
Global leader in identity verification, helping organizations comply with regulations and verify individuals and businesses worldwide through a cutting-edge technology platform |
370 | |||
| 24 |
ADGA Groupadga.ca
Canadian defence company providing cybersecurity, simulation, systems engineering, and program management services for government and industry clients. |
330 | |||
| 25 |
Tailscaletailscale.com
Tailscale offers secure, private networks for teams with quick setup, low latency, and compatibility with existing services, replacing traditional corporate VPNs |
326 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 26 |
Micro Logicmicrologic.ca
With nearly 40 years of experience and over 350 experts, this organization helps both public and private entities with their digital transformation and adoption of cutting-edge technologies |
280 | |||
| 27 | 275 | ||||
| 28 |
Bulletproofbulletproofsi.com
A global IT security provider with expertise in reducing complexities, empowering teams with effective technology solutions, and ensuring productivity, security, and compliance |
252 | |||
| 29 |
Victrixvictrix.ca
A leading IT services company in Quebec, specializing in implementing enterprise productivity solutions to enhance performance and competitiveness through specialized technology services |
240 | |||
| 30 |
Calian IT & Cyber Solutionscalian.com
Global provider of IT & Cyber Solutions, digital healthcare, and application modernization Offering proactive, scalable solutions to drive innovation for various industries |
230 | |||
| 31 | 185 | ||||
| 32 |
ESI Technologiesesitechnologies.com
Specializing in data management and protection since 1994, we offer end-to-end digital transformation services, including cybersecurity, cloud integration, and digital resilience solutions |
184 | |||
| 33 |
Field Effectfieldeffect.com
Cyber security company providing threat detection, monitoring, training, and compliance solutions for small and mid-size businesses with sophisticated technology and actionable insights |
151 | |||
| 34 |
IT Weaponsitweapons.ca
Provider of IT services, hybrid cloud solutions, information security, connectivity, infrastructure management, and technical support to streamline and optimize technology environments for businesses |
109 | |||
| 35 |
Bell Cyberbusiness.bell.ca
Next-generation managed security services provider, driving superior cybersecurity outcomes through an innovative "Security-as-a-Service" model, leveraging a cybersecurity mesh architecture. |
109 | |||
| 36 |
SecureOpssecureops.com
Provides global managed security services, custom SOC, co-owned MDR, security infrastructure, and vulnerability management for various industries, strengthening security maturity. |
100 | |||
| 37 |
Qohashqohash.com
Pioneering AI-native zero-copy data security for petabytes of unstructured data, autonomously identifying and enforcing risk controls at machine speed. |
71 | |||
| 38 |
AllHeart Weballheartweb.com
A global AI-driven company offers user-friendly datasets, cybersecurity solutions, lead generation services, and digital visibility enhancement to clients worldwide |
52 | |||
| 39 |
AUGMENTTaugmentt.com
Centralized SaaS security platform for MSPs to deliver managed security services for Microsoft and cloud apps, offering visibility, protection, and threat detection |
44 | |||
| 40 |
Audcompaudcomp.com
A Canadian IT solutions provider offering managed services, cloud services, IT infrastructure, data storage, networking, software, procurement, and professional services |
34 | |||
| 41 |
CyBeatscybeats.com
Leader in software supply chain security, offering continuous end-to-end protection for software and devices with proactive threat prevention and quick vulnerability response |
32 | |||
| 42 |
NuData Security, a Mastercard companynudatasecurity.com
This company helps businesses verify users and prevent fraud using behavioral signals and device intelligence, ensuring a seamless customer experience |
26 | |||
| 43 |
IAMConceptsiamconcepts.ca
A Canadian cybersecurity consulting firm specializing in Enterprise Identity and Access Management solutions for clients in Canada, the US, and Europe |
20 | |||
| 44 |
KTIkearnstechnology.com
A managed services company and hardware supplier with a team of advanced developers specializing in machine learning, databases, cloud-based solutions, and design |
17 | |||
| 45 |
Zentra Computer Technologiescyderes.com
IT infrastructure solutions company specializing in data center products/services, data storage, virtualization, and high performance computing Custom designs and reliable customer service |
13 | |||
| 46 |
ScotiaComp Technologies, Inc.scotiacomp.ca
A trusted leader in managed IT services, providing compliance, IT governance, cybersecurity optimization, 24/7 staff support, infrastructure management, and more |
12 | |||
| 47 |
Autohostautohost.ai
Specializing in identity verification and fraud prevention solutions for the sharing economy, we use machine learning and behavioral checks to protect businesses against chargebacks and fraud |
12 | |||
| 48 |
Megawiremegawire.com
Industry-leading provider of managed IT services in Southern Ontario, offering customized solutions for businesses of all sizes with a comprehensive background in networking, storage, and virtualization |
10 | |||
| 49 |
OwlEyeowleye.com
A pioneer in manual secure code review services, leveraging security analysts to identify and address vulnerabilities in application source code |
7 | |||
| 50 |
VNK CYBER SECURITY AND INTELLIGENCE (VNK CSI)vnkcsi.com
Providing SaaS-based cybersecurity solutions, we protect businesses from cyber threats, allowing them to focus on core competencies in a secure digital environment |
5 | |||
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How this list is built
Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 12, 2026.
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