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.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Collierscolliers.com
Offers real estate services, engineering solutions, and investment management, focusing on client success and delivering strong financial returns. |
29,561 | |||
| 2 |
RBC Capital Marketsrbccm.com
Global investment bank providing specialized expertise in capital markets, banking, and finance to corporations, institutional investors, asset managers, and governments across international markets. |
11,098 | |||
| 3 |
KPMG Canadakpmg.com
Providing audit, tax, and advisory services to public, private, nonprofit, and public sector organizations across Canada with professionalism. |
10,017 | |||
| 4 |
Other.β’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 |
9,168 | |||
| 5 |
PwC Canadapwc.com
Delivering audit assurance, risk management, tax, and consulting services to build trust and solve complex business problems through collective industry expertise. |
5,523 | |||
| 6 |
BMO Capital Marketscapitalmarkets.bmo.com
A leading North American financial services provider offering a complete range of investment and corporate banking products to clients worldwide |
5,451 | |||
| 7 |
Avison Youngavisonyoung.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 |
3,517 | |||
| 8 |
Softchoicesoftchoice.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 |
2,839 | |||
| 9 |
Livingston Internationallivingstonintl.com
Providing customs brokerage, trade consulting, global trade management, freight forwarding, and innovative automation technology solutions worldwide for businesses. |
2,735 | |||
| 10 |
LABORATORYwearelaboratory.com
A full-service agency creating innovative marketing solutions without boundaries, collaborating closely with forward-thinking brands to deliver impactful strategies and designs |
2,731 | |||
| 11 |
Faskenfasken.com
An international law firm with over 950 lawyers and offices on three continents, providing practical legal services for complex business and litigation challenges |
2,458 | |||
| 12 |
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 |
2,290 | |||
| 13 |
McCarthy TΓ©traultmccarthy.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 |
2,088 | |||
| 14 | 2,006 | ||||
| 15 |
Osler, Hoskin & Harcourt LLPosler.com
providing business law advice and counsel to Canadian, U.S., and international clients on domestic and cross-border legal issues |
1,707 | |||
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. | |||||
| 16 |
Blake, Cassels & Graydon LLPblakes.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 |
1,686 | |||
| 17 |
Tundra Technical Solutionstundratechnical.com
Global provider of staffing solutions, focusing on understanding client and candidate needs to deliver top talent for the right role worldwide |
1,679 | |||
| 18 |
Gowling WLG Canadagowlingwlg.com
International legal organization formed through the merger of a Canadian and UK-based law firm, offering specialized legal services across 18 global locations |
1,572 | |||
| 19 |
Stikeman Elliott LLPstikeman.com
A global leader in Canadian business law, providing legal services and creative solutions in various practice areas to clients worldwide |
1,564 | |||
| 20 |
Miller Thomson LLPmillerthomson.com
National business law firm with 525 lawyers in Canada offering litigation, mergers and acquisitions, corporate finance, tax, real estate, labor & employment services |
1,415 | |||
| 21 |
Kinectricskinectrics.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 |
1,361 | |||
| 22 |
Procomprocomservices.com
A leading staffing and contract workforce provider with 18 offices in North America, offering award-winning services to Fortune 500 clients |
1,287 | |||
| 23 |
Dillon Consulting Limiteddillon.ca
A Canadian employee-owned consulting firm specializing in planning, engineering, environmental science, and management, providing innovative solutions for complex projects |
1,256 | |||
| 24 |
CONTAX Inc.contax.com
Providing SAP system implementation, support, and maintenance services with a focus on quality, reliability, and customer business growth. |
1,227 | |||
| 25 |
Randstad Canadarandstad.ca
This company is a Canadian leader in recruitment and HR, focusing on delivering HR innovation with a people-first, human approach |
1,203 | |||
| 26 |
Drake Internationaldrakeintl.com
A global leader in flexible and permanent staffing, offering talent management solutions to maximize human capital assets and increase organizational bottom line |
1,189 | |||
| 27 | 1,106 | ||||
| 28 |
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 |
987 | |||
| 29 | 947 | ||||
| 30 |
McMillan LLPmcmillan.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 |
935 | |||
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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 11, 2026.
More company lists in Toronto
- The largest companies in Toronto 1,921
- Multinational companies in Toronto 377
- Financial services firms in Toronto 250
- Financial Services companies in Toronto 163
- SaaS companies in Toronto 160
- Software Development companies in Toronto 131
- Critical infrastructure operators in Toronto 120
- Retail chains in Toronto 116
- Education providers in Toronto 109
- IT Services and IT Consulting companies in Toronto 100
- Companies with a mobile app in Toronto 97
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- Subscription businesses in Toronto 93
- Investment Management companies in Toronto 92
- Manufacturers in Toronto 88
- Publicly traded companies in Toronto 86
- AI companies in Toronto 82
- Consulting firms in Toronto 70
- Healthcare providers in Toronto 68
- Advertising Services companies in Toronto 66
- Hospitals and Health Care companies in Toronto 66
- IT services companies in Toronto 66
- Public sector organisations in Toronto 64
- Retail companies in Toronto 61
The same list elsewhere in Canada
- Professional services firms in Canada 481
- Professional services firms in Ontario 211
- Professional services firms in the province of Quebec 103
- Professional services firms in Alberta 81
- Professional services firms in British Columbia 59
- Professional services firms in Montreal 65
- Professional services firms in Calgary 55
- Professional services firms in Vancouver 34