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The 66 largest AI companies in Ontario

Tamtam tracks 66 AI companies headquartered in Ontario. This list ranks all of them by number of employees on LinkedIn, led by Thomson Reuters, Shopify and ContactPoint 360. Their median headcount is 569. Half of them were founded in 2014 or later. The most common headquarters are Toronto (40), Ottawa (10) and Waterloo (5).

馃嚚馃嚘 Ontario66 companiesUpdated Oct 24, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
Thomson Reutersthomsonreuters.com

It offers news and information tools for professionals in legal, regulatory, and tax sectors, helping them navigate complex environments.

Software Development 馃嚚馃嚘 Toronto 36,640 n/a
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.

Software Development 馃嚚馃嚘 Ottawa 28,526 2006
3
ContactPoint 360contactpoint360.com

Partner with global brands to deliver AI-enhanced, human-centered customer experience solutions that drive sales, retention, and measurable ROI.

Outsourcing and Offshoring Consulting 馃嚚馃嚘 Toronto 2,361 2007
4
Kinaxiskinaxis.com

Empowering businesses to orchestrate their entire supply chain network, from long-term planning to real-time execution and delivery.

Software Development 馃嚚馃嚘 Ottawa 2,322 n/a
5
Klickklick.com

An independent commercialization partner for life sciences brands, focused on developing, launching, and supporting brands to maximize market potential globally

Advertising Services 馃嚚馃嚘 Toronto 2,006 1997
6
StackAdaptstackadapt.com

A global multi-channel programmatic advertising platform specializing in native, display, video, connected TV, audio, in-game, and DOOH advertising

Technology, Information and Internet 馃嚚馃嚘 Toronto 1,781 2014
7
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.

Software Development 馃嚚馃嚘 Waterloo 1,688 1981
8
Calian Groupcalian.com

Providing diverse technology and healthcare solutions across communications, learning, security, and advanced technologies with a customer-focused approach.

Strategic Management Services 馃嚚馃嚘 Ottawa 1,303 1982
9
D2Ld2l.com

Provides learning platforms for all ages, supports millions online and in person, makes technology more human for education globally.

E-Learning Providers 馃嚚馃嚘 Kitchener 1,271 1999
10
Freelance, self-employedjobicy.com

A company dedicated to providing services and solutions for home offices, catering to the needs of remote workers and independent professionals

Design Services 馃嚚馃嚘 Toronto 1,245 2014
11
Tenstorrenttenstorrent.com

Tenstorrent builds next-generation AI computers, combining expertise in computer architecture, ASIC design, systems, and neural network compilers Offices worldwide Join our team!

Computer Hardware Manufacturing 馃嚚馃嚘 Toronto 1,226 2016
12
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

Software Development 馃嚚馃嚘 Toronto 1,146 2002
13
ApplyBoardapplyboard.com

Empowering global students to access top education through streamlined application process, expert assistance, and guidance to study abroad and fulfill their dreams

Software Development 馃嚚馃嚘 Kitchener 1,098 2015
14
SP Data Digitalspdatadigital.com

Specializing in sales operations outsourcing, we drive revenue growth and provide exceptional customer experiences through digital technology and expert sales teams

Business Consulting and Services 馃嚚馃嚘 Toronto 1,082 2006
15
AutoTrader.cago.trader.ca

A leading advertising partner for Canadian automotive retailers and manufacturers, offering access to a large audience, advertising services, and data insights

Technology, Information and Internet 馃嚚馃嚘 Etobicoke 1,022 1975
16
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.

Software Development 馃嚚馃嚘 Toronto 1,020 2019
17
Voicesvoices.com

A voice marketplace connecting businesses with voice actors for hire and payment, bypassing the need for talent agents

Technology, Information and Media 馃嚚馃嚘 London 964 2005
18
Morningstar DBRSdbrs.morningstar.com

Global provider of independent credit rating services and opinions for corporate, sovereign, financial, and structured finance instruments across multiple asset classes worldwide.

Financial Services 馃嚚馃嚘 Toronto 928 n/a
19
Zafinzafin.com

Zafin offers a SaaS product and pricing platform for top banks worldwide, simplifying core modernization, accelerating time to market, and enabling personalized pricing

Software Development 馃嚚馃嚘 Toronto 870 n/a
20
Coritycority.com

Empowering employees with EHS software solutions to reduce risks, improve efficiencies, and create a safer, healthier, and more sustainable world

Software Development 馃嚚馃嚘 Toronto 864 n/a
21
Ceridian Canadaceridian.ca

Global provider of human capital management technology solutions in over 50 countries Offers cloud-based HCM, Global Solutions, and Small Business Payroll to improve work life

Human Resources Services 馃嚚馃嚘 Toronto 846 n/a
22
Fullscriptfullscript.com

Fullscript is a digital health platform that helps practitioners create personalized supplement plans, improve patient adherence, and access evidence-based resources

Health and Human Services 馃嚚馃嚘 Ottawa 775 2011
23
ada CXada.cx

A global leader in customer service automation, using AI to help companies efficiently resolve customer inquiries across languages and channels

Software Development 馃嚚馃嚘 Toronto 768 2016
24
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

Software Development 馃嚚馃嚘 Kanata 718 2001
25
Resolver, a Kroll Businessresolver.com

Risk data aggregation and analysis platform providing business impact insights, enabling strategic risk communication and operational resilience for enterprises.

Software Development 馃嚚馃嚘 Toronto 717 n/a
26
Vena Solutionsvenasolutions.com

Platform enabling finance teams to plan confidently, collaborate across departments, and accelerate decision-making using familiar Microsoft tools.

Software Development 馃嚚馃嚘 Toronto 708 2011
27
MCIS Language Solutionsmcislanguages.com

A not-for-profit social enterprise offering 24/7 solutions in over 350 languages, with a focus on financial sustainability, human rights, and diversity

Translation and Localization 馃嚚馃嚘 Toronto 693 1989
28
Bond Brand Loyaltybondbl.com

This company specializes in creating lasting relationships between people and brands through intelligent connections, engaging experiences, and advanced technology solutions globally

Advertising Services 馃嚚馃嚘 Toronto 640 1980
29
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

Software Development 馃嚚馃嚘 Toronto 626 1988
30
Vector Institutevectorinstitute.ai

A non-profit organization dedicated to AI research, specializing in machine and deep learning Collaborates with various entities to advance AI adoption and commercialization

Research Services 馃嚚馃嚘 Toronto 603 2017
31
eSentireesentire.com

Managed detection and response services protecting organizations worldwide from cyber threats using machine learning, threat hunting, and expert security operations.

Computer and Network Security 馃嚚馃嚘 Waterloo 580 2001
32
Prophixes.prophix.com

Provides AI-powered platform integrating planning, budgeting, forecasting, reporting, and consolidation to streamline financial performance management for finance teams.

Software Development 馃嚚馃嚘 Toronto 571 1987
33
ShoreTelmitel.com

A global leader in business communications, connecting users worldwide with innovative cloud solutions for seamless collaboration and customer service

Telecommunications 馃嚚馃嚘 Kanata 569 n/a
34
Pythianpythian.com

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 馃嚚馃嚘 Ottawa 526 1997
35
Optiva Inc.optiva.com

A provider of cloud-native revenue management software for telecommunications industry, helping service providers maximize digital and emerging market opportunities

Telecommunications 馃嚚馃嚘 Mississauga 513 1999
36
Q4q4inc.com

A leading capital markets access platform facilitating efficient connections between issuers, investors, and the sell-side with various tools and analytics

Financial Services 馃嚚馃嚘 Toronto 482 2006
37
JSIjsitelecom.com

A trusted provider of lawful intelligence and AI-enabled analytics solutions, helping law enforcement and security agencies globally with critical missions

Software Development 馃嚚馃嚘 Ottawa 470 1979
38
Wipro Limited Canadawipro.com

Leading global IT consulting & BPO services provider using cutting-edge technologies to help clients thrive in the digital era

IT Services and IT Consulting 馃嚚馃嚘 Toronto 464 n/a
39
vFairsvfairs.com

Comprehensive platform providing registration, ticketing, mobile apps, and analytics for planning and executing in-person, virtual, or hybrid conferences, trade shows, and job fairs.

Technology, Information and Internet 馃嚚馃嚘 Toronto 337 2016
40
Loopioloopio.com

It provides RFP response software that helps companies improve their response speed and quality for RFPs, DDQs, and Security Questionnaires.

Software Development 馃嚚馃嚘 Toronto 301 2014
41
CloudTalkcloudtalk.io

It provides AI-powered calling software for businesses, enhancing communication quality and analytics, supporting sales and customer service globally.

Software Development 馃嚚馃嚘 Toronto 223 2016
42
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

Computer and Network Security 馃嚚馃嚘 Ottawa 151 2016
43
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

Software Development 馃嚚馃嚘 Markham 114 1987
44
ODAIAodaia.ai

A leading AI company helps life sciences innovate commercial engagement with Customer Science using a cloud solution integrating data, behavioral science, and AI

Software Development 馃嚚馃嚘 Toronto 108 2018
45
Trellisgotrellis.com

eCommerce merchandising platform for Amazon and Walmart sellers, focusing on Price, Product, Placement, and Promotion to maximize Return on Merchandising Spend

Software Development 馃嚚馃嚘 Ottawa 57 2019
46
BusPlannerbusplanner.com

This company provides route planning and student transportation management products and services for pupil transportation professionals, including optimization tools and IT services

Software Development 馃嚚馃嚘 Waterloo 53 1983
47
Protoproto.cx

Leading generative AI platform for local customer experience, automating high-volume interactions across text, voice, and messaging channels for various industries globally

Software Development 馃嚚馃嚘 Waterloo 45 2018
48
Garner Distributed Workflowgarnercorp.com

Specializing in complex logistics for energy projects since 2001, our tailored software streamlines supply chain management and fosters collaboration for project success

Software Development 馃嚚馃嚘 Toronto 43 2001
49
interValinter-val.ai

interVal provides a technology platform for financial institutions to offer real-time valuation data to help business owners make informed decisions

Software Development 馃嚚馃嚘 London 37 2019
50
Zymewirewelcome.zymewire.com

It builds a digital sales research assistant using AI to help service providers in Biotech and Pharma uncover growth opportunities.

Software Development 馃嚚馃嚘 Toronto 24 2011
51
Asenion - Govern AI. Assure Trust.asenion.ai

The company focuses on enabling safe, secure, and compliant artificial intelligence solutions

Software Development 馃嚚馃嚘 Kitchener 23 2020
52
NuEnergy.ainuenergy.ai

AI and technology firm providing trustworthy solutions to governments, banks, healthcare institutions, boards, and business leaders for societal impact

Software Development 馃嚚馃嚘 Ottawa 20 2015
53
Massive Insightsmassiveinsights.com

Specializing in data, analytics, and AI, we provide clients with unique multidisciplinary solutions to make better decisions faster and with more confidence

Data Infrastructure and Analytics 馃嚚馃嚘 Toronto 20 2012
54
Intelenseintelense.com

Innovating with technology and AI to advance safety and security for a better world

Software Development 馃嚚馃嚘 Markham 17 2018
55
aggregate intellectai.science

Offering fractional generative AI labs for seamless integration of AI into sales workflows, empowering industries with on-demand AI expertise

Research Services 馃嚚馃嚘 Ottawa 14 2019
56
Mosellemoselle.io

A digital platform that simplifies supplier management, ordering, tracking, inventory, and demand planning for brands to focus on business growth

Software Development 馃嚚馃嚘 Toronto 9 2020
57
DotsLivedotslive.com

An open innovation and Generative AI community for building, exploring, and learning new technologies and solutions

Software Development 馃嚚馃嚘 Waterloo 7 2024
58
nmodesnmodes.com

A provider of AI platforms for onboarding, customer service, personalized experiences, investment decision-making, smart building services for user-friendly tenant experiences

Software Development 馃嚚馃嚘 Toronto 7 2017
59
NeoEvolution AIneoevolution.ai

Empowering businesses to innovate and disrupt through exponential technologies, AI-driven collective intelligence, and advancements across socio-political-economic spheres

IT Services and IT Consulting 馃嚚馃嚘 Toronto 6 2018
60
Advanced Bio-Material Technologies Corporationadvancedbmt.com

A company specializing in developing advanced plastics that are lighter, stronger, and more cost-effective for various applications

Textile Manufacturing 馃嚚馃嚘 Toronto 5 2016
61
AI Analytics Incaianalytics.ai

An AI consulting firm founded in 2018, specializing in ML, AI, and emerging technologies to transform businesses and make a difference at scale

Business Consulting and Services 馃嚚馃嚘 Toronto 4 2018
62
Aligntalignt.com

Technology consulting and data solutions company specializing in rapid application development and AI/ML solutions, partnering with Microsoft, OpenAI, and Snowflake for innovative business solutions

IT Services and IT Consulting 馃嚚馃嚘 Toronto 4 2018
63
ShyftBaseshyftbase.com

All-in-one transportation management system offering supply chain solutions from inventory and logistics to billing and reverse logistics integration

Technology, Information and Internet 馃嚚馃嚘 Toronto 4 2019
64
Semantic Brain Corp.semanticbrain.net

The company offers solutions to address security and reliability challenges in AI adoption, with a focus on enhancing performance and generating more conversions

Software Development 馃嚚馃嚘 Toronto 3 2018
65
ECCAN Inc.energycap.com

Global leader in AI and machine learning solutions for organizational efficiency and sustainability across government, education, and commercial sectors Specializing in utility consumption tracking and forecasting

Software Development 馃嚚馃嚘 Toronto 2 2008
66
Scopify AIscopify.ai

It provides AI-powered tools for delivering qualified leads, specifically designed for modern digital innovation companies seeking growth opportunities.

Software Development 馃嚚馃嚘 Toronto 2 n/a

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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 Oct 24, 2026.

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