# Managed service providers headquartered in Ontario

Tamtam tracks 39 managed service providers headquartered in Ontario. This list ranks all of them by number of employees on LinkedIn, led by OpenText, Compugen Inc and N-able. Their median headcount is 47. Half of them were founded in 1998 or later. The most common headquarters are Toronto (11), Markham (6) and Ottawa (5).

These Ontario-based companies are managed service providers, predominantly IT services and consulting firms, alongside some software development and telecommunications companies. They range from large enterprises like OpenText, which specializes in information management, to mid-sized firms such as Compugen Inc, focused on technology-enabled solutions, and Pythian, a data and analytics services company. N-able provides software for managed service providers, while Sangoma offers communications as a service.OnX delivers technology solutions including AI and cybersecurity, and Jolera offers next-generation managed services. A notable pattern is the concentration of headquarters in major urban centers, particularly Toronto, Ottawa, and Markham, indicating key hubs for technology and IT services within Ontario.

🇨🇦 Ontario · 39 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [OpenText](https://www.tamtam.ai/c/opentext) (opentext.com)<br>It specializes in Information Management, assisting businesses of all sizes in securely capturing, governing, and exchanging information globally. | Software Development | 🇨🇦 Waterloo | 22,990 | 1991 |
| 2 | [Compugen Inc](https://www.tamtam.ai/c/compugen-inc) (compugen.com)<br>This company focuses on innovation, transformation, and connecting communities through human-centered, technology-enabled solutions with a strong emphasis on collaboration and making a difference | IT Services and IT Consulting | 🇨🇦 Richmond Hill | 1,644 | 1981 |
| 3 | [N-able](https://www.tamtam.ai/c/n-able)<br>Provides comprehensive software solutions for managed service providers, enabling remote monitoring, management, security, and data protection for their small and medium-sized business clients. | Software Development | 🇨🇦 | 1,341 | 2000 |
| 4 | [Sangoma](https://www.tamtam.ai/c/sangoma) (sangoma.com)<br>Global provider of Communications as a Service solutions for businesses, offering a diverse portfolio of reliable and flexible communication platforms with award-winning innovation and industry leadership | Telecommunications | 🇨🇦 Markham | 604 | 1984 |
| 5 | [Pythian](https://www.tamtam.ai/c/pythian) (pythian.com)<br>A global data and analytics services company founded in 1997, specializing in helping organizations transform through data, analytics, and cloud solutions | IT Services and IT Consulting | 🇨🇦 Ottawa | 526 | 1997 |
| 6 | [OnX](https://www.tamtam.ai/c/onx) (onx.com)<br>Leading provider of technology solutions in Canada, offering services like AI, application modernization, cybersecurity, and cloud management to various organizations. | IT Services and IT Consulting | 🇨🇦 Toronto | 477 | 1983 |
| 7 | [Wipro Limited Canada](https://www.tamtam.ai/c/wipro-limited-canada) (wipro.com)<br>Leading global IT consulting & BPO services provider using cutting-edge technologies to help clients thrive in the digital era | IT Services and IT Consulting | 🇨🇦 Toronto | 464 |  |
| 8 | [Jolera](https://www.tamtam.ai/c/jolera) (jolera.com)<br>This company offers next-generation managed services and solutions to MSPs and IT providers worldwide, with a focus on top-notch customer experience | IT Services and IT Consulting | 🇨🇦 Toronto | 405 | 2001 |
| 9 | [Soroc Technology](https://www.tamtam.ai/c/soroc-technology) (soroc.com)<br>Technology solutions provider offering IT infrastructure deployment, consulting, managed services, staffing, maintenance, disaster recovery, and asset management services in North America | IT Services and IT Consulting | 🇨🇦 Woodbridge | 356 | 1981 |
| 10 | [HostPapa](https://www.tamtam.ai/c/hostpapa) (hostpapa.ca)<br>A customer-centric company offering reliable hosting solutions for small and medium-sized businesses, with a focus on outstanding customer service and employee development | IT Services and IT Consulting | 🇨🇦 Burlington | 312 | 2006 |
| 11 | [Nova Networks](https://www.tamtam.ai/c/nova-networks) (novanetworks.com)<br>A Canadian IT provider delivering customized solutions, expert consulting, and seamless technology optimization for clients since 1993 | IT Services and IT Consulting | 🇨🇦 Ottawa | 232 | 1993 |
| 12 | [Calian IT & Cyber Solutions](https://www.tamtam.ai/c/calian-it-and-cyber-solutions) (calian.com)<br>Global provider of IT & Cyber Solutions, digital healthcare, and application modernization Offering proactive, scalable solutions to drive innovation for various industries | IT Services and IT Consulting | 🇨🇦 Ottawa | 230 | 1982 |
| 13 | [Group of Gold Line](https://www.tamtam.ai/c/group-of-gold-line) (groupofgl.com)<br>Specializing in telecommunication solutions, IPTV, web-to-print, and business solutions, the group offers innovative technology products connecting people globally | Telecommunications | 🇨🇦 Markham | 206 | 1991 |
| 14 | [CaTECH Systems Ltd.](https://www.tamtam.ai/c/catech-systems-ltd) (catech-systems.com)<br>Provider of innovative network infrastructure solutions for Data Centres, Networking, AV, Security, Rollouts, and Electrical with nationwide service locations | Telecommunications | 🇨🇦 Markham | 149 | 1989 |
| 15 | [IT Weapons](https://www.tamtam.ai/c/it-weapons) (itweapons.ca)<br>Provider of IT services, hybrid cloud solutions, information security, connectivity, infrastructure management, and technical support to streamline and optimize technology environments for businesses | IT Services and IT Consulting | 🇨🇦 Mississauga | 109 | 2000 |
| 16 | [New Horizon System Solutions LP](https://www.tamtam.ai/c/new-horizon-system-solutions-lp) (ca.capgemini.com)<br>Provider of consulting, IT outsourcing, data center services, infrastructure transformation, project management, virtualization, and workplace services under Capgemini umbrella | IT Services and IT Consulting | 🇨🇦 Toronto | 89 |  |
| 17 | [Mid-Range Computer Group Inc.](https://www.tamtam.ai/c/mid-range-computer-group-inc) (midrange.ca)<br>A leading IT solutions provider with a strong track record, specializing in IBM, Oracle, and Veeam technologies, offering co-location, hosting, and disaster recovery services | IT Services and IT Consulting | 🇨🇦 Markham | 58 |  |
| 18 | [Frontier Networks - Broadband + Voice](https://www.tamtam.ai/c/frontier-networks-broadband-voice) (hellofrontiernetworks.com)<br>This company provides simplified connectivity solutions, including broadband, voice, network security, in-store music, and colocation services to businesses nationwide | Technology, Information and Internet | 🇨🇦 Etobicoke | 58 | 2003 |
| 19 | [IT Force](https://www.tamtam.ai/c/it-force) (itforce.ca)<br>A technology service provider specializing in IT solutions for various sectors, offering managed IT, cloud, security, and industry-specific insights since 1999 | IT Services and IT Consulting | 🇨🇦 Burlington | 47 | 1999 |
| 20 | [Urbacon Data Centre Solutions](https://www.tamtam.ai/c/urbacon-data-centre-solutions) (udcsdatacentres.com)<br>A company specializing in design, construction, operation, and maintenance of data centres, emerging as a leader in colocation services | IT Services and IT Consulting | 🇨🇦 Toronto | 47 |  |
| 21 | [DataCity](https://www.tamtam.ai/c/datacity) (datacity.ca)<br>A privately-held company providing mission critical IT/datacenter services for corporate institutions, offering fully managed IT support for medium to large/enterprise companies | IT Services and IT Consulting | 🇨🇦 Waterloo | 39 | 2017 |
| 22 | [Audcomp](https://www.tamtam.ai/c/audcomp) (audcomp.com)<br>A Canadian IT solutions provider offering managed services, cloud services, IT infrastructure, data storage, networking, software, procurement, and professional services | IT Services and IT Consulting | 🇨🇦 Ancaster | 34 | 1986 |
| 23 | [Northern Micro, A Converge Company](https://www.tamtam.ai/c/northern-micro-a-converge-company) (northernmicro.com)<br>Provider of integrated IT solutions leveraging expertise in computing, infrastructure, and datacentre technologies Partnered with industry leaders to deliver innovative solutions and exceptional customer satisfaction | IT Services and IT Consulting | 🇨🇦 Ottawa | 28 | 1985 |
| 24 | [ITM Global Services](https://www.tamtam.ai/c/itm-global-services) (itmission.com)<br>Provider of IT consulting, hardware/software procurement, and managed IT services, focusing on minimizing costs, maximizing productivity, and delivering world-class support | IT Services and IT Consulting | 🇨🇦 Mississauga | 23 | 1999 |
| 25 | [KTI](https://www.tamtam.ai/c/kti) (kearnstechnology.com)<br>A managed services company and hardware supplier with a team of advanced developers specializing in machine learning, databases, cloud-based solutions, and design | IT Services and IT Consulting | 🇨🇦 Toronto | 17 | 2010 |
| 26 | [Insite Computer Group](https://www.tamtam.ai/c/insite-computer-group) (insite.ca)<br>Provider of IT Management Services, offering tailored solutions to businesses to ensure success and reduce risks in a cost-effective manner | IT Services and IT Consulting | 🇨🇦 Markham | 10 | 1988 |
| 27 | [Megawire](https://www.tamtam.ai/c/megawire) (megawire.com)<br>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 | IT Services and IT Consulting | 🇨🇦 Waterloo | 10 | 1998 |
| 28 | [IT PRO Canada](https://www.tamtam.ai/c/it-pro-canada) (itprocanada.ca)<br>A provider of intelligent IT solutions, including unified communications, networking, data center services, and security solutions, to help businesses grow and succeed | IT Services and IT Consulting | 🇨🇦 Toronto | 9 | 2008 |
| 29 | [CLICK-into Inc.](https://www.tamtam.ai/c/click-into-inc) (click-into.com)<br>Technology solutions provider specializing in IT products, professional services, and cloud solutions for enterprises, SMBs, and various industries Focus on customized solutions for business optimization | IT Services and IT Consulting | 🇨🇦 Toronto | 6 | 1985 |
| 30 | [JumpPoint](https://www.tamtam.ai/c/jumppoint) (jumppoint.ca)<br>A leading Canadian company providing management and transformation services for the data centre market, with a focus on innovation and partnership | IT Services and IT Consulting | 🇨🇦 Mississauga | 6 |  |
| 31 | [Fox IT Canada](https://www.tamtam.ai/c/fox-it-canada) (foxit.ca)<br>A Canadian IT service provider offering fully-managed solutions, infrastructure architecture, virtual IT leadership, security, data management, disaster recovery, and cloud services | IT Services and IT Consulting | 🇨🇦 Ottawa | 6 | 1998 |
| 32 | [Nebulaar](https://www.tamtam.ai/c/nebulaar) (nebulaar.com)<br>A provider of comprehensive IT consulting services, specializing in IT infrastructure, cloud hosting, help desk support, migrations, ERP systems, mobile app development, and website design | IT Services and IT Consulting | 🇨🇦 Toronto | 5 | 2018 |
| 33 | [Tri-Paragon Inc.](https://www.tamtam.ai/c/tri-paragon-inc) (triparagon.com)<br>Providing a wide range of Data Centre services and products to enhance performance, reduce costs, improve reliability, and manage cybersecurity risks effectively | IT Services and IT Consulting | 🇨🇦 Toronto | 4 | 1997 |
| 34 | [Ericon Technologies](https://www.tamtam.ai/c/ericon-technologies) (ericontech.ca)<br>A provider of Managed IT Services catering to businesses, offering comprehensive solutions to meet their technological needs and support infrastructure | IT Services and IT Consulting | 🇨🇦 Orangeville | 4 | 2000 |
| 35 | [Clikkle](https://www.tamtam.ai/c/clikkle) (clikkle.com)<br>A disruptive SaaS company enabling businesses to harness the power of AI for improved productivity and global sustainability efforts | Software Development | 🇨🇦 Oshawa | 3 | 2023 |
| 36 | [SinghIT Services Inc.](https://www.tamtam.ai/c/singhit-services-inc) (singhit.ca)<br>Offering comprehensive IT solutions, including managed services, web services, IT security, and infrastructure planning and deployment, with a focus on client care | IT Services and IT Consulting | 🇨🇦 Peterborough | 3 |  |
| 37 | [DistribuCloud Technology Services](https://www.tamtam.ai/c/distribucloud-technology-services) (distribucloud.com)<br>Provider of high quality, reliable, and flexible fully managed IT solutions with expertise in cloud computing Helping businesses adapt and thrive with technology | IT Services and IT Consulting | 🇨🇦 Waterloo | 2 | 2013 |
| 38 | [Telemerge are now New Era Technology VCD, CA, Inc](https://www.tamtam.ai/c/telemerge-are-now-new-era-technology-vcd-ca-inc) (neweratech.com)<br>Global provider of managed technology solutions with expertise in collaboration, networking, security, cloud, and professional services across various industries worldwide | IT Services and IT Consulting | 🇨🇦 Markham | 2 | 1994 |
| 39 | [Steartech I.T. Solutions Inc.](https://www.tamtam.ai/c/steartech-i-t-solutions-inc) (steartech.com)<br>This company provides comprehensive managed IT services including hardware/software management, network setup, security, backup, disaster recovery, and customer connectivity solutions | IT Services and IT Consulting | 🇨🇦 Toronto | 1 |  |

## 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 11, 2026.

## More company lists in Ontario

- [The largest companies in Ontario](https://www.tamtam.ai/l/largest-companies-ontario) (5,032)
- [Multinational companies in Ontario](https://www.tamtam.ai/l/multinational-companies-ontario) (901)
- [Financial services firms in Ontario](https://www.tamtam.ai/l/financial-services-firms-ontario) (396)
- [Manufacturers in Ontario](https://www.tamtam.ai/l/manufacturers-ontario) (389)
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- [Logistics companies in Ontario](https://www.tamtam.ai/l/logistics-companies-ontario) (285)
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- [Truck Transportation companies in Ontario](https://www.tamtam.ai/l/truck-transportation-companies-ontario) (270)
- [Transportation, Logistics, Supply Chain and Storage companies in Ontario](https://www.tamtam.ai/l/transportation-logistics-supply-chain-and-storage-companies-ontario) (261)
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## The same list elsewhere in Canada

- [Managed service providers in Canada](https://www.tamtam.ai/l/managed-service-providers-canada) (68)

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Source: https://www.tamtam.ai/l/managed-service-providers-ontario