# The 30 largest professional services firms in Toronto Tamtam tracks 117 professional services firms headquartered in Toronto. This list ranks the 30 largest by number of employees on LinkedIn, led by Colliers, RBC Capital Markets and KPMG Canada. Their median headcount is 1,707. Half of them were founded in 1951 or later. This selection of professional services firms in Toronto includes companies across financial services, law, real estate, and advertising. Companies like Colliers offer real estate services and investment management, while RBC Capital Markets provides global investment banking expertise. KPMG Canada delivers audit, tax, and advisory services, and Other.β„’ specializes in paid media and performance creative. A clear pattern among these firms is their substantial size, with many employing thousands of professionals. For instance, Colliers has 29,561 employees, and RBC Capital Markets has 11,098. The list also features prominent legal firms such as Fasken and Borden Ladner Gervais LLP, reflecting a strong presence of legal and financial advisory services in Toronto. πŸ‡¨πŸ‡¦ Toronto Β· 30 companies Β· Updated Nov 11, 2026 | # | Company | Industry | Headquarters | Employees | Founded | |---|---|---|---|---|---| | 1 | [Colliers](https://www.tamtam.ai/c/colliers) (colliers.com)
Offers real estate services, engineering solutions, and investment management, focusing on client success and delivering strong financial returns. | Real Estate | πŸ‡¨πŸ‡¦ Toronto | 29,561 | | | 2 | [RBC Capital Markets](https://www.tamtam.ai/c/rbc-capital-markets) (rbccm.com)
Global investment bank providing specialized expertise in capital markets, banking, and finance to corporations, institutional investors, asset managers, and governments across international markets. | Investment Banking | πŸ‡¨πŸ‡¦ Toronto | 11,098 | | | 3 | [KPMG Canada](https://www.tamtam.ai/c/kpmg-canada) (kpmg.com)
Providing audit, tax, and advisory services to public, private, nonprofit, and public sector organizations across Canada with professionalism. | Financial Services | πŸ‡¨πŸ‡¦ Toronto | 10,017 | | | 4 | [Other.β„’](https://www.tamtam.ai/c/other-toronto) (weareother.ca)
Specialized paid media and performance creative agency helping marketers optimize media spend, achieve targets, and outperform competition with proven methodologies and successful campaigns | Advertising Services | πŸ‡¨πŸ‡¦ Toronto | 9,168 | 2015 | | 5 | [PwC Canada](https://www.tamtam.ai/c/pwc-canada) (pwc.com)
Delivering audit assurance, risk management, tax, and consulting services to build trust and solve complex business problems through collective industry expertise. | Business Consulting and Services | πŸ‡¨πŸ‡¦ Toronto | 5,523 | | | 6 | [BMO Capital Markets](https://www.tamtam.ai/c/bmo-capital-markets) (capitalmarkets.bmo.com)
A leading North American financial services provider offering a complete range of investment and corporate banking products to clients worldwide | Investment Banking | πŸ‡¨πŸ‡¦ Toronto | 5,451 | | | 7 | [Avison Young](https://www.tamtam.ai/c/avison-young) (avisonyoung.us)
Global real estate advisor creating value through collective intelligence, creativity, and agile thinking, with a focus on making a positive impact on people's lives | Real Estate | πŸ‡¨πŸ‡¦ Toronto | 3,517 | | | 8 | [Softchoice](https://www.tamtam.ai/c/softchoice) (softchoice.com)
IT solutions provider enabling organizations to be agile and innovative, move to the cloud, create smarter workplaces, and make informed technology decisions for success | IT Services and IT Consulting | πŸ‡¨πŸ‡¦ Toronto | 2,839 | 1989 | | 9 | [Livingston International](https://www.tamtam.ai/c/livingston-international) (livingstonintl.com)
Providing customs brokerage, trade consulting, global trade management, freight forwarding, and innovative automation technology solutions worldwide for businesses. | International Trade and Development | πŸ‡¨πŸ‡¦ Toronto | 2,735 | 1945 | | 10 | [LABORATORY](https://www.tamtam.ai/c/laboratory) (wearelaboratory.com)
A full-service agency creating innovative marketing solutions without boundaries, collaborating closely with forward-thinking brands to deliver impactful strategies and designs | Advertising Services | πŸ‡¨πŸ‡¦ Toronto | 2,731 | 2016 | | 11 | [Fasken](https://www.tamtam.ai/c/fasken) (fasken.com)
An international law firm with over 950 lawyers and offices on three continents, providing practical legal services for complex business and litigation challenges | Law Practice | πŸ‡¨πŸ‡¦ Toronto | 2,458 | | | 12 | [Borden Ladner Gervais LLP (BLG)](https://www.tamtam.ai/c/borden-ladner-gervais-llp-blg) (blg.com)
A Canadian law firm offering bilingual services in common and civil law, with a national presence and global reach through an international network Contributing to communities through pro bono work and charitable initiatives | Law Practice | πŸ‡¨πŸ‡¦ Toronto | 2,290 | 1823 | | 13 | [McCarthy TΓ©trault](https://www.tamtam.ai/c/mccarthy-tetrault) (mccarthy.ca)
Canadian-based law firm offering a wide range of legal services to Canadian and international clients, with expertise in business law, litigation, tax, real estate, and labor law | Law Practice | πŸ‡¨πŸ‡¦ Toronto | 2,088 | 1855 | | 14 | [Klick](https://www.tamtam.ai/c/klick) (klick.com)
An independent commercialization partner for life sciences brands, focused on developing, launching, and supporting brands to maximize market potential globally | Advertising Services | πŸ‡¨πŸ‡¦ Toronto | 2,006 | 1997 | | 15 | [Osler, Hoskin & Harcourt LLP](https://www.tamtam.ai/c/osler-hoskin-and-harcourt-llp) (osler.com)
providing business law advice and counsel to Canadian, U.S., and international clients on domestic and cross-border legal issues | Law Practice | πŸ‡¨πŸ‡¦ Toronto | 1,707 | 1862 | | 16 | [Blake, Cassels & Graydon LLP](https://www.tamtam.ai/c/blake-cassels-and-graydon-llp) (blakes.com)
A top Canadian business law firm providing exceptional legal services to leading businesses in Canada and globally, with a focus on client relationships and expertise | Law Practice | πŸ‡¨πŸ‡¦ Toronto | 1,686 | 1856 | | 17 | [Tundra Technical Solutions](https://www.tamtam.ai/c/tundra-technical-solutions) (tundratechnical.com)
Global provider of staffing solutions, focusing on understanding client and candidate needs to deliver top talent for the right role worldwide | Staffing and Recruiting | πŸ‡¨πŸ‡¦ Toronto | 1,679 | 2004 | | 18 | [Gowling WLG Canada](https://www.tamtam.ai/c/gowling-wlg-canada) (gowlingwlg.com)
International legal organization formed through the merger of a Canadian and UK-based law firm, offering specialized legal services across 18 global locations | Law Practice | πŸ‡¨πŸ‡¦ Toronto | 1,572 | | | 19 | [Stikeman Elliott LLP](https://www.tamtam.ai/c/stikeman-elliott-llp) (stikeman.com)
A global leader in Canadian business law, providing legal services and creative solutions in various practice areas to clients worldwide | Law Practice | πŸ‡¨πŸ‡¦ Toronto | 1,564 | 1952 | | 20 | [Miller Thomson LLP](https://www.tamtam.ai/c/miller-thomson-llp) (millerthomson.com)
National business law firm with 525 lawyers in Canada offering litigation, mergers and acquisitions, corporate finance, tax, real estate, labor & employment services | Law Practice | πŸ‡¨πŸ‡¦ Toronto | 1,415 | 1957 | | 21 | [Kinectrics](https://www.tamtam.ai/c/kinectrics) (kinectrics.com)
Integrated lifecycle management services for electric power industry worldwide Testing, inspection, certification, engineering consulting, and maintenance services to ensure safe and efficient utility asset performance | Utilities | πŸ‡¨πŸ‡¦ Toronto | 1,361 | 1912 | | 22 | [Procom](https://www.tamtam.ai/c/procom) (procomservices.com)
A leading staffing and contract workforce provider with 18 offices in North America, offering award-winning services to Fortune 500 clients | IT Services and IT Consulting | πŸ‡¨πŸ‡¦ Toronto | 1,287 | 1978 | | 23 | [Dillon Consulting Limited](https://www.tamtam.ai/c/dillon-consulting-limited) (dillon.ca)
A Canadian employee-owned consulting firm specializing in planning, engineering, environmental science, and management, providing innovative solutions for complex projects | Business Consulting and Services | πŸ‡¨πŸ‡¦ Toronto | 1,256 | 1946 | | 24 | [CONTAX Inc.](https://www.tamtam.ai/c/contax-inc) (contax.com)
Providing SAP system implementation, support, and maintenance services with a focus on quality, reliability, and customer business growth. | IT Services and IT Consulting | πŸ‡¨πŸ‡¦ Toronto | 1,227 | 1991 | | 25 | [Randstad Canada](https://www.tamtam.ai/c/randstad-canada) (randstad.ca)
This company is a Canadian leader in recruitment and HR, focusing on delivering HR innovation with a people-first, human approach | Staffing and Recruiting | πŸ‡¨πŸ‡¦ Toronto | 1,203 | 1997 | | 26 | [Drake International](https://www.tamtam.ai/c/drake-international) (drakeintl.com)
A global leader in flexible and permanent staffing, offering talent management solutions to maximize human capital assets and increase organizational bottom line | Human Resources Services | πŸ‡¨πŸ‡¦ Toronto | 1,189 | 1951 | | 27 | [Torys LLP](https://www.tamtam.ai/c/torys-llp) (torys.com)
Providing superior counsel and client service, our cross-border team offers innovative solutions for clients' toughest problems with regional expertise | Law Practice | πŸ‡¨πŸ‡¦ Toronto | 1,106 | 1941 | | 28 | [Canaccord Genuity Group Inc.](https://www.tamtam.ai/c/canaccord-genuity-group-inc) (canaccordgenuity.com)
A leading independent financial services firm offering wealth management and capital markets services globally to individual, institutional, and corporate clients | Financial Services | πŸ‡¨πŸ‡¦ Toronto | 987 | 1950 | | 29 | [NORR](https://www.tamtam.ai/c/norr) (norr.com)
Employee-owned A&E firm with 800 professionals in various sectors across multiple countries, focusing on purpose-driven design for sustainable and inclusive spaces | Architecture and Planning | πŸ‡¨πŸ‡¦ Toronto | 947 | 1938 | | 30 | [McMillan LLP](https://www.tamtam.ai/c/mcmillan-llp) (mcmillan.ca)
A national business law firm in Canada specializing in transportation, technology, infrastructure, natural resources, energy, cross-border transactions, private equity, real estate, and regulatory disputes | Law Practice | πŸ‡¨πŸ‡¦ Toronto | 935 | 1903 | ## 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 Toronto - [The largest companies in Toronto](https://www.tamtam.ai/l/largest-companies-toronto) (1,921) - [Multinational companies in Toronto](https://www.tamtam.ai/l/multinational-companies-toronto) (377) - [Financial services firms in Toronto](https://www.tamtam.ai/l/financial-services-firms-toronto) (250) - [Financial Services companies in Toronto](https://www.tamtam.ai/l/financial-services-companies-toronto) (163) - [SaaS companies in Toronto](https://www.tamtam.ai/l/saas-companies-toronto) (160) - [Software Development companies in Toronto](https://www.tamtam.ai/l/software-development-companies-toronto) (131) - [Critical infrastructure operators in Toronto](https://www.tamtam.ai/l/critical-infrastructure-operators-toronto) (120) - [Retail chains in Toronto](https://www.tamtam.ai/l/retail-chains-toronto) (116) - [Education providers in Toronto](https://www.tamtam.ai/l/education-companies-toronto) (109) - [IT Services and IT Consulting companies in Toronto](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-toronto) (100) - [Companies with a mobile app in Toronto](https://www.tamtam.ai/l/companies-with-mobile-app-toronto) (97) - [Companies with in-house R&D in Toronto](https://www.tamtam.ai/l/r-and-d-companies-toronto) (93) - [Subscription businesses in Toronto](https://www.tamtam.ai/l/subscription-businesses-toronto) (93) - [Investment Management companies in Toronto](https://www.tamtam.ai/l/investment-management-companies-toronto) (92) - [Manufacturers in Toronto](https://www.tamtam.ai/l/manufacturers-toronto) (88) - [Publicly traded companies in Toronto](https://www.tamtam.ai/l/publicly-traded-companies-toronto) (86) - [AI companies in Toronto](https://www.tamtam.ai/l/ai-companies-toronto) (82) - [Consulting firms in Toronto](https://www.tamtam.ai/l/consulting-firms-toronto) (70) - [Healthcare providers in Toronto](https://www.tamtam.ai/l/healthcare-providers-toronto) (68) - [Advertising Services companies in Toronto](https://www.tamtam.ai/l/advertising-services-companies-toronto) (66) - [Hospitals and Health Care companies in Toronto](https://www.tamtam.ai/l/hospitals-and-health-care-companies-toronto) (66) - [IT services companies in Toronto](https://www.tamtam.ai/l/it-services-companies-toronto) (66) - [Public sector organisations in Toronto](https://www.tamtam.ai/l/public-sector-organisations-toronto) (64) - [Retail companies in Toronto](https://www.tamtam.ai/l/retail-companies-toronto) (61) ## The same list elsewhere in Canada - [Professional services firms in Canada](https://www.tamtam.ai/l/professional-services-firms-canada) (481) - [Professional services firms in Ontario](https://www.tamtam.ai/l/professional-services-firms-ontario) (211) - [Professional services firms in the province of Quebec](https://www.tamtam.ai/l/professional-services-firms-province-of-quebec) (103) - [Professional services firms in Alberta](https://www.tamtam.ai/l/professional-services-firms-alberta) (81) - [Professional services firms in British Columbia](https://www.tamtam.ai/l/professional-services-firms-british-columbia) (59) - [Professional services firms in Montreal](https://www.tamtam.ai/l/professional-services-firms-montreal) (65) - [Professional services firms in Calgary](https://www.tamtam.ai/l/professional-services-firms-calgary) (55) - [Professional services firms in Vancouver](https://www.tamtam.ai/l/professional-services-firms-vancouver) (34) --- Source: https://www.tamtam.ai/l/professional-services-firms-toronto