| # | Company | Employees |
|---|---|---|
| 1 |
Thomson Reutersthomsonreuters.com
It offers news and information tools for professionals in legal, regulatory, and tax sectors, helping them navigate complex environments. |
36,640 |
| 2 |
Shopifyshopify.com
Provides trusted tools to start, grow, market, and manage a retail business of any size, powering millions of businesses across 175 countries. |
28,526 |
| 3 |
OpenTextopentext.com
It specializes in Information Management, assisting businesses of all sizes in securely capturing, governing, and exchanging information globally. |
22,990 |
| 4 |
Wattpadcompany.wattpad.com
Innovative social storytelling platform empowering diverse Gen Z writers with a global community engaging in original stories, driving the future of entertainment |
4,872 |
| 5 |
Perseus Group, Constellation Softwarecsiperseus.com
The company focuses on nurturing and growing businesses through data-driven guidance, permanent capital, and empowering general managers for maximum potential |
3,916 |
| 6 |
Geotabgeotab.com
Provides connected vehicle, asset management solutions. Leverages data analytics, AI to transform fleet performance, operations, reducing costs, driving efficiency for over 55,000 customers. |
3,167 |
| 7 |
Harris Computerharriscomputer.com
Provides mission-critical software solutions for public sector, healthcare, utilities, and private sectors across North America, Europe, Asia, Australia. |
2,929 |
| 8 |
Kinaxiskinaxis.com
Empowering businesses to orchestrate their entire supply chain network, from long-term planning to real-time execution and delivery. |
2,322 |
| 9 |
PointClickCarepointclickcare.com
Leading healthcare technology platform providing collaboration and real-time insights throughout the patient healthcare journey for various healthcare providers and organizations |
2,311 |
| 10 | 2,224 | |
| 11 |
Altus Groupaltusgroup.com
A leading provider of asset and fund intelligence for commercial real estate, offering advanced analytics, technology, and advisory services globally |
2,168 |
| 12 |
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 |
| 13 |
Descartes Systems Groupdescartes.com
Software-as-a-service solutions enhancing productivity, security, and sustainability for logistics businesses through routing, tracking, shipment planning, and customs compliance. |
1,688 |
| 14 |
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 |
| 15 |
Enghouse Systemsenghouse.com
Global provider of enterprise software solutions for vertical markets, focusing on strategic acquisitions and managed growth Listed on Toronto Stock Exchange |
1,295 |
| 16 |
Achieversachievers.com
This company provides employee voice and recognition solutions to activate participation and drive a culture of performance, resulting in sustainable business results worldwide |
1,146 |
| 17 |
Volaris Groupvolarisgroup.com
Acquires and grows vertical market technology companies through best practice sharing, organic initiatives, and long-term sustainable development. |
1,102 |
| 18 |
ApplyBoardapplyboard.com
Empowering global students to access top education through streamlined application process, expert assistance, and guidance to study abroad and fulfill their dreams |
1,098 |
| 19 |
Assentassent.com
Provides an AI-native platform for product compliance, sustainability, responsible sourcing, and trade compliance, helping manufacturers reduce supply chain risk and manage data. |
1,052 |
| 20 |
Coherecohere.com
Building cutting-edge foundation models and end-to-end AI products for businesses, with a focus on data security and privacy across various deployment options. |
1,020 |
| 21 |
Docebodocebo.com
Provides a comprehensive learning platform that enables organizations to deliver personalized training and measure the effectiveness of their learning initiatives. |
1,016 |
| 22 |
Corel Corporationcorel.com
Develops and markets graphics, productivity, and digital media software products for creative professionals and consumers worldwide. |
994 |
| 23 |
Dye & Durham Corporationdyedurham.com
Provider of practice management solutions for legal professionals, data insights for corporate transactions, and payments infrastructure for government and financial institutions across multiple countries |
945 |
| 24 | 870 | |
| 25 |
Coritycority.com
Empowering employees with EHS software solutions to reduce risks, improve efficiencies, and create a safer, healthier, and more sustainable world |
864 |
| 26 | 768 | |
| 27 |
BlueCatbluecatnetworks.com
Provides services and solutions for automated DDI management, network security, multicloud management, and network observability supporting cloud adoption and automation. |
728 |
| 28 |
Solacesolace.com
Solace enables large enterprises to modernize and operate in real-time, offering an event management platform to stream events securely and reliably across industries |
718 |
| 29 |
Resolver, a Kroll Businessresolver.com
Risk data aggregation and analysis platform providing business impact insights, enabling strategic risk communication and operational resilience for enterprises. |
717 |
| 30 |
Vena Solutionsvenasolutions.com
Platform enabling finance teams to plan confidently, collaborate across departments, and accelerate decision-making using familiar Microsoft tools. |
708 |
| 31 |
CMiCcmicglobal.com
CMiC provides unified Financials and Project Management software solutions for construction firms, optimizing productivity, minimizing risk, and driving growth |
701 |
| 32 |
Esri Canadaesri.ca
Provider of GIS solutions for business, government, and education, empowering informed decision-making through mapping, spatial analytics, and digital transformation services |
672 |
| 33 |
Varicentvaricent.com
Provides SaaS software for revenue leaders to optimize territory planning, quota setting, revenue operations, and incentive programs globally. |
669 |
| 34 |
Enghouse Interactiveenghouseinteractive.com
It provides contact center software and services, enabling businesses to enhance customer experiences through reliable and flexible technology solutions. |
663 |
| 35 |
Trapeze Grouptrapezegroup.com
Providing integrated technology solutions to transit agencies, enhancing operational efficiency, safety, rider experience, and data management for public transportation. |
637 |
| 36 |
Casewarecaseware.com
Leading global provider of cloud-enabled solutions for audit, financial reporting, and data analytics, helping customers worldwide work smarter and transform insights into impact |
626 |
| 37 |
Prophixes.prophix.com
Provides AI-powered platform integrating planning, budgeting, forecasting, reporting, and consolidation to streamline financial performance management for finance teams. |
571 |
| 38 |
Loblaws Supermarkets Limited
A software company located in Toronto, ON, developing solutions likely related to the operations of supermarkets |
557 |
| 39 |
Enghouse Networksenghousenetworks.com
Provider of technology solutions for communication service providers globally, focusing on BSS, OSS, VAS, network security, and automation Publicly traded on TSX |
549 |
| 40 |
Versatermversaterm.com
Design and delivery of purpose-built platform solutions enhancing community safety through efficient incident management, fostering just outcomes, and improving emergency response experiences. |
542 |
| 41 |
Alludoalludo.com
A global technology company providing professional graphics, virtualization, and productivity solutions tailored for the digital remote workforce, enabling creative and collaborative work anytime, anywhere |
536 |
| 42 |
Flippcorp.flipp.com
Retail technology company revolutionizing shopping experience by connecting retailers and consumers through an app to discover products, make better purchase decisions, and save money |
518 |
| 43 |
Miovisionmiovision.com
Provides cities with tools to collect traffic data and insights, improving road network efficiency and safety for all transportation modes. |
516 |
| 44 | 508 | |
| 45 |
Jonas Softwarejonassoftware.com
A global leader in enterprise management software solutions, serving 40+ vertical markets with innovative products, quality service, and industry expertise worldwide |
502 |
| 46 |
March Networksmarchnetworks.com
Secure cloud-based video solutions integrating POS and ATM systems, enhancing security, operational efficiency, and business insights globally. |
479 |
| 47 |
Intelex Technologies ULCintelex.com
Global leader in developing EHSQ software solutions since 1992, offering flexible and scalable web-based software for managing corporate information efficiently |
478 |
| 48 |
JSIjsitelecom.com
A trusted provider of lawful intelligence and AI-enabled analytics solutions, helping law enforcement and security agencies globally with critical missions |
470 |
| 49 |
Top Hattophat.com
This company revolutionizes student engagement in higher education by providing educators with tools for personalized and equitable learning experiences |
466 |
| 50 | 459 | |
| 51 |
Constellation Software Inc.csisoftware.com
International provider of specialized software solutions for various industries, through acquisitions and organic growth, with offices worldwide and diverse customer base |
455 |
| 52 |
FreshBooksfreshbooks.com
Leading cloud-based accounting software for self-employed professionals and teams, offering blog updates, tweets, and career opportunities on their website |
400 |
| 53 |
Solinksolink.com
A subscription-based software connecting camera footage with POS data to enhance profit, reduce theft, and provide actionable insights for businesses worldwide |
393 |
| 54 |
TouchBistrotouchbistro.com
An all-in-one POS and restaurant management system streamlining operations for restaurateurs, enhancing guest engagement, and simplifying business growth |
386 |
| 55 |
WellnessLivingwellnessliving.com
Provider of cloud-based business management software for spas, salons, fitness, and yoga studios Features include scheduling, point of sale, marketing, rewards, and client mobile app |
377 |
| 56 |
Maropostmaropost.com
A leading Commerce platform offering software and support for businesses to enhance their customer journey through online and retail commerce, marketing, service, and payments management |
373 |
| 57 | 367 | |
| 58 |
The Baythebay.com
A purpose-driven digital marketplace in North America rewriting the rules of retail to help Canadians live a colourful life with diverse thinking and innovative ideas |
360 |
| 59 |
PartnerStackpartnerstack.com
It provides tools for companies to build and manage channel partner programs, enhancing customer reach through strategic partnerships and collaboration. |
358 |
| 60 |
EBlockeblock.com
Online vehicle auction platform enabling dealers to inspect and sell vehicles in 60 seconds, streamlining car buying, selling, and appraising processes with innovative technology |
335 |
| 61 |
Tailscaletailscale.com
Tailscale offers secure, private networks for teams with quick setup, low latency, and compatibility with existing services, replacing traditional corporate VPNs |
326 |
| 62 |
Loopioloopio.com
It provides RFP response software that helps companies improve their response speed and quality for RFPs, DDQs, and Security Questionnaires. |
301 |
| 63 |
Wave HQwaveapps.com
Financial management solution for small business owners, empowering them to manage finances fearlessly through award-winning software and unwavering support |
280 |
| 64 |
SysAidsysaid.com
AI-powered IT service management platform automating routine tasks, enhancing team efficiency, ensuring security, and enabling rapid deployment with strong support. |
260 |
| 65 |
MindBridgemindbridge.ai
Global leader in financial risk discovery and anomaly detection using AI, data science, and audit expertise to provide key insights and transparency in financial data |
259 |
| 66 |
BioRenderbiorender.com
Revolutionizing scientific communication with graphics, empowering researchers to share their work easily Passionate team solving big problems for users |
244 |
| 67 |
BenchScibenchsci.com
Advanced AI platform empowering scientists in biomedical research, accelerating innovation at top pharmaceutical companies and research centers worldwide |
242 |
| 68 |
FreeBalancefreebalance.com
A purpose-led organization dedicated to improving citizen wellbeing worldwide through Public Financial Management solutions, advisory services, and training |
240 |
| 69 |
Constellation HomeBuilder Systemsconstellationhb.com
Leading provider of software and services for the building industry, offering innovative solutions to simplify home and condo construction and drive business objectives |
225 |
| 70 |
CloudTalkcloudtalk.io
It provides AI-powered calling software for businesses, enhancing communication quality and analytics, supporting sales and customer service globally. |
223 |
| 71 |
Fablemakeitfable.com
Fable helps organizations improve accessibility in digital products, making them compliant and user-friendly for people with disabilities |
223 |
| 72 |
Shoplazzashoplazza.com
An online e-Commerce platform empowering merchants globally to create, promote, and run their businesses, with a strong focus on innovation and collaboration |
200 |
| 73 |
FacilityOSfacilityos.com
Modular platform for facility, asset, visitor management optimizing processes, ensuring compliance, enforcing safety, and enhancing site security globally. |
199 |
| 74 |
Survalentsurvalent.com
Provider of advanced distribution management systems for utilities worldwide with a focus on improving operational efficiency, customer satisfaction, and network reliability |
198 |
| 75 | 195 | |
| 76 |
Univerisuniveris.com
Enterprise-class retail wealth management solutions provider in Canada Leading platform for wealth firms, offering integrated back office operations, product distribution, and compliance support |
192 |
| 77 | 187 | |
| 78 | 185 | |
| 79 | 185 | |
| 80 |
Messagepointmessagepoint.com
A platform for healthcare, financial, and insurance companies to efficiently manage customer communications, ensuring full control of content and customer experience |
184 |
| 81 |
SolidCADsolidcad.ca
It provides technology consulting and thought leadership, focusing on accelerating digital transformation through design, collaboration, management, and overcoming challenges. |
182 |
| 82 |
ResQgetresq.com
End-to-end repair and maintenance platform for restaurants, providing easy-to-use software for requesting, managing, and paying for services, offering data-driven insights for better decision making |
176 |
| 83 |
Exadel Financial Servicescpqi.com
Specializing in digital transformation, predictive AI, DevOps, and cloud migration, we offer managed services for financial markets systems in leading American economies |
166 |
| 84 | 163 | |
| 85 |
Jonas Club Softwarejonasclub.com
We provide top solutions for clubs, focusing on software, communication, and service to enhance member relationships, increase revenue, and reduce costs globally |
162 |
| 86 |
Aritel Communicationshttp
Specializing in software design, architecture, and development, we offer comprehensive solutions and services in the communication industry |
160 |
| 87 | 158 | |
| 88 |
Gilmore Globalgilmoreglobal.com
Leader in digital content delivery offering platforms for learning experiences and content management, as well as print enablement and global supply chain optimization services |
157 |
| 89 |
Marblemarbleapi.com
This company provides robust API offerings for accessing patient-consented health data, empowering businesses with seamless integration and data access |
152 |
| 90 |
NDAndacorp.com
Telecom provider assisting in circuit quoting efficiency, promotion to customers, and custom product portfolio automation with customized solutions under tight deadlines |
151 |
| 91 |
i3 Internationali3international.com
Global leader in digital video solutions for security industry, offering innovative products and quality services with a focus on collaboration and partnership |
150 |
| 92 |
Irwin, a FactSet companygetirwin.com
An innovative platform for investor relations, offering automation, powerful tools, and insights to enhance investor relationships and streamline workflows |
150 |
| 93 |
Private AIgetlimina.ai
Private AI offers world-leading technology for finding, redacting, and generating synthetic PII in diverse datasets, supporting multiple languages and entities |
150 |
| 94 |
Texada Softwaretexadasoftware.com
Cloud-based platform providing CRM, quoting, rentals, service, parts, and fleet management software for equipment dealerships and rental businesses. |
150 |
| 95 |
Hipohipolabs.com
A product development company specialized in building scalable solutions for startups and enterprises worldwide, focusing on flexibility, quality, and efficiency |
149 |
| 96 |
Vela Softwarevelasoftwaregroup.com
Specializing in vertical market software, this company acquires and manages businesses globally, offering expertise, support, and capital for organic growth and acquisitions |
146 |
| 97 |
Rewindrewind.com
Rewind helps businesses worldwide protect their SaaS and cloud data through backup, restoration, and data copying services for various platforms |
135 |
| 98 |
Mercatus Technologies Incmercatus.com
Mercatus helps grocers with multiple stores by managing digital storefronts, order fulfillment, loyalty programs, and overall omnichannel profitability |
116 |
| 99 | 116 | |
| 100 |
Computer Talk Technology Inc.computer-talk.com
A global provider of contact center solutions leveraging Microsoft Teams, offering IVR and ACD functionalities, omnichannel communication, and seamless integration with business applications for enhanced productivity |
114 |
Turn this list into pipeline
Tamtam finds the decision-makers at every company on a list like this one, with verified emails, phone numbers and the buying signals that tell you when to reach out.
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 Oct 24, 2026.
More company lists in Ontario
- The largest companies in Ontario 4,330
- Financial services firms in Ontario 315
- Critical infrastructure operators in Ontario 262
- SaaS companies in Ontario 232
- Financial Services companies in Ontario 228
- Retail chains in Ontario 213
- Truck Transportation companies in Ontario 206
- Transportation, Logistics, Supply Chain and Storage companies in Ontario 196
- Public sector organisations in Ontario 196
- Hospitals and Health Care companies in Ontario 195
- IT Services and IT Consulting companies in Ontario 179
- Manufacturers in Ontario 169
- Education providers in Ontario 148
- Logistics companies in Ontario 133
- Healthcare providers in Ontario 131
- Government Administration companies in Ontario 128
- Construction companies in Ontario 127
- Insurance companies in Ontario 123
- Contract manufacturers in Ontario 113
- Retail companies in Ontario 113
- Non-profit Organizations companies in Ontario 106
- Higher Education companies in Ontario 102
- Distributors and wholesalers in Ontario 100
- Real Estate companies in Ontario 98
The same list elsewhere in Canada
- Software Development companies in Canada 382
- Software Development companies in the province of Quebec 77
- Software Development companies in British Columbia 55
- Software Development companies in Alberta 33
- Software Development companies in Toronto 106
- Software Development companies in Montreal 56
- Software Development companies in Vancouver 42