Company lists · Data refreshed September 2026
Top 25 Business consulting firm services based in Canada
RevenueBase identified 9,435 business consulting firm services headquartered in Canada as of September 2026 and tracks 68,166 professional contacts across them, including 24,385 with verified work emails and 5,894 with mobile numbers. Toronto is the largest hub.
This list covers business consulting firm services headquartered in Canada, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 23, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest business consulting firm services based in Canada
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 8,773 contacts → | ||||
Strong evidence “MNP is a leading national accounting, tax and business consulting firm in Canada.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 2 | 5,573 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,863 contacts → | ||||
Indirect evidence “We help companies with their challenges and transformation by relying on our sharp business acumen, extensive practical experience and vast technological curiosity.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,543 contacts → | ||||
Indirect evidence “For over two decades, Adastra Corporation has transformed businesses into digital leaders, helping global organizations innovate, achieve operational excellence, and create…” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,268 contacts → | ||||
Indirect evidence “Mallette compte plus de 40 bureaux solidement implantés dans plusieurs régions du Québec et regroupe plus de 1 600 ressources œuvrant dans différents secteurs d’activité.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 6 | 742 contacts → | ||||
Strong evidence “A consulting firm providing technology solutions and advisory services to both private and public sector organizations.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 7 | 402 contacts → | ||||
Indirect evidence “Crowe MacKay LLP is a vibrant team of trusted advisors in eight cities across western and northern Canada.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 8 | 396 contacts → | ||||
Indirect evidence “At Eckler, we help organizations make confident decisions about risk and financial security.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 9 | 355 contacts → | ||||
Indirect evidence “At The Acquisition Group, we believe growth starts with opportunity.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 10 | 347 contacts → | ||||
Indirect evidence “FBL | SOCIÉTÉ DE COMPTABLES PROFESSIONNELS AGRÉÉS Ayant été désigné comme étant l’un des dix plus grands cabinets au Québec, FBL jouit d’une solide expertise depuis plus de 40 ans.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 11 | 341 contacts → | ||||
Indirect evidence “We are a team of accountants qualified from professional bodies across the globe who have considerable experience in finance and related digital transformation.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 12 | 320 contacts → | ||||
Strong evidence “Optimus SBR is Canada’s largest independent management consulting firm.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 13 | 316 contacts → | ||||
Indirect evidence “DMCL LLP is a full-service accounting firm dedicated to helping you achieve and exceed your business goals, no matter how ambitious.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 14 | 296 contacts → | ||||
Indirect evidence “Manning Elliott LLP is considered to be one of the most well-respected and progressive mid-sized firms in the Lower Mainland & Fraser Valley.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 15 | 281 contacts → | ||||
Indirect evidence “Since 1989, CRGroup, a Quisitive Company, has been helping leaders transform enterprise management and performance.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 16 | 248 contacts → | ||||
Indirect evidence “Quarry is now Marketbridge.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 17 | 234 contacts → | ||||
Indirect evidence “Jarvis is driven by a bold vision to transform the professional services landscape by setting a new standard for innovation, empowerment, and impactful solutions in data, AI, and…” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 18 | 218 contacts → | ||||
Indirect evidence “Kingston Ross Pasnak offers an array of comprehensive services through our highly skilled professionals.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 19 | 209 contacts → | ||||
Strong evidence “RLG International is a performance-focused consulting firm specializing in the on-site implementation of measurable improvement initiatives.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 20 | 203 contacts → | ||||
Indirect evidence “Trusted Technology Advisors We help businesses engage, understand, manage and serve their customers through the use of technology.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 21 | 175 contacts → | ||||
Strong evidence “Founded in September 2011, TACT Intelligence-conseil is composed of a group of experienced, professional communicators seeking to create a Québec-owned consulting agency.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 22 | 170 contacts → | ||||
Indirect evidence “Depuis maintenant plus de 60 ans, BVA a développé une panoplie de services axés sur les préoccupations des entrepreneurs, des professionnels et des dirigeants d’entreprises.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 23 | 168 contacts → | ||||
Strong evidence “Zeifmans is a full-service tax, accounting and consulting firm based in Toronto, Canada.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 24 | 164 contacts → | ||||
Indirect evidence “BCGO est un cabinet indépendant d’expertise comptable et de services-conseils aux entrepreneurs.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 25 | 164 contacts → | ||||
Indirect evidence “Services-conseils en optimisation de processus d'affaires, comptabilité, financement, démarrage d'entreprise, implantation de logiciel de gestion intégrée et recrutement.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: business consulting firm services. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names business consulting firm services.
- Partial evidence
- Its own public description names part of business consulting firm services, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name business consulting firm services. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 9,435 business consulting firm services based in Canada
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 24,385 reachable decision-makers.
Free signup · no credit card
Business consulting firm services based in Canada at a glance
As of Sep 23, 2026Companies by employee count
Freshness & accuracy
How recently the business emails were verified and the company information checked
Email last verified
Median 25.0dCompany record updated
Median 75.0dHow this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among business consulting firm services, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Canada whose own description of what they do matches “business consulting firm services”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names business consulting firm services), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among business consulting firm services, and records with no verified work email. Companies headquartered outside Canada are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 24,385 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 23, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Business consulting firm services by metro
- Business consulting firm services in Toronto2077
- Business consulting firm services in Montreal925
- Business consulting firm services in Vancouver714
- Business consulting firm services in Calgary666
- Business consulting firm services in Ottawa362
- Business consulting firm services in Mississauga288
- Business consulting firm services in Edmonton265
- Business consulting firm services in Quebec199
- Business consulting firm services in Winnipeg149
- Business consulting firm services in Oakville137
- Business consulting firm services in Halifax100
- Business consulting firm services in Victoria100
- Business consulting firm services in Laval94
- Business consulting firm services in Markham87
- Business consulting firm services in London80
- Business consulting firm services in Burlington76
- Business consulting firm services in Richmond Hill68
- Business consulting firm services in Hamilton66
- Business consulting firm services in Burnaby63
- Business consulting firm services in North Vancouver63
- Business consulting firm services in Vaughan59
- Business consulting firm services in Brampton56
- Business consulting firm services in Kelowna50
- Business consulting firm services in Surrey49
- Business consulting firm services in Guelph46
- Business consulting firm services in Longueuil46
- Business consulting firm services in Saskatoon45
- Business consulting firm services in Kitchener44
- Business consulting firm services in Waterloo42
- Business consulting firm services in Regina39
- Business consulting firm services in North York38
- Business consulting firm services in Richmond37
- Business consulting firm services in Brossard33
- Business consulting firm services in Cambridge32
- Business consulting firm services in Etobicoke30
- Business consulting firm services in Langley30
- Business consulting firm services in Milton29
- Business consulting firm services in Sherbrooke29
- Business consulting firm services in Windsor29
- Business consulting firm services in Barrie28
- Business consulting firm services in Kingston28
- Business consulting firm services in Gatineau27
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names business consulting firm services, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many business consulting firm services are there based in Canada?
RevenueBase identified 9,435 business consulting firm services headquartered in Canada as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
MNP, headquartered in Calgary, tops this list with the largest team on record.
Which city has the most business consulting firm services?
Toronto leads with 2077 headquartered companies, followed by Montreal (925) and Vancouver (714).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 24,385 verified decision-maker contacts tracked across these 9,435 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 23, 2026.
Ready to reach these companies? Verified emails and direct dials for all 9,435 business consulting firm services based in Canada. Start with a free account, no credit card.
Download this list →Related lists
Business consulting firm services by geography
- Business consulting firm services based in the United States
- Business consulting firm services based in Brazil
- Business consulting firm services based in the United Kingdom
- Business consulting firm services based in France
- Business consulting firm services based in Germany
- Business consulting firm services based in Spain
- Business consulting firm services based in Italy
- Business consulting firm services based in Australia
- Business consulting firm services based in the Netherlands
- Business consulting firm services based in Mexico
- Business consulting firm services based in Switzerland
- Business consulting firm services based in Argentina
About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Business consulting firm services based in the United States
- Business consulting firm services based in Brazil
- Business consulting firm services based in the United Kingdom
- Business consulting firm services based in France
- Business consulting firm services based in Germany
- Business consulting firm services based in Spain