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Company lists · Data refreshed September 2026

Top 25 Business consulting firm services based in Ottawa, Canada

Compiled by the RevenueBase Data Team Data refreshed Sep 23, 2026 362 companies tracked

RevenueBase identified 362 business consulting firm services headquartered in Ottawa, Canada as of September 2026 and tracks 1,641 professional contacts across them, including 503 with verified work emails. Toronto is the largest hub.

This list covers business consulting firm services headquartered in Ottawa, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 23, 2026 86% judged on-target in blind review
362Companies
1,641Contacts tracked
503Verified emails
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The 25 largest business consulting firm services based in Ottawa, Canada

Ranked by team size
Top 25 of 362 business consulting firm services based in Ottawa, Canada, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to business consulting firm services: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1
Corporate Renaissance Group
Indirect evidenceOttawa, ON, CanadaHQ checked Sep 23, 202651-200281 contacts →

Indirect evidence

“Since 1989, CRGroup, a Quisitive Company, has been helping leaders transform enterprise management and performance.”

Source: RevenueBase Database · checked Sep 23, 2026
2
Earnscliffe Strategies
Indirect evidenceOttawa, ON, CanadaHQ checked Sep 23, 202651-20084 contacts →

Indirect evidence

“Founded in 1989 and independently owned by our principals, Earnscliffe operates from offices in Ottawa-Gatineau, Toronto and Vancouver.”

Source: RevenueBase Database · checked Sep 23, 2026
3
Baker Tilly Ottawa LLP
Indirect evidenceOttawa, ON, CanadaHQ checked Sep 23, 202651-20080 contacts →

Indirect evidence

“At Baker Tilly Ottawa LLP, we provide expert tax, assurance, and entrepreneurial services to help your business grow and prosper.”

Source: RevenueBase Database · checked Sep 23, 2026
4
Maplesoft Group, An SEB Company
Indirect evidenceOttawa, ON, CanadaHQ checked Sep 23, 202651-20047 contacts →

Indirect evidence

“Since 1996 Maplesoft Group has been helping clients successfully execute their business strategies, create value and achieve measurable results through the innovative and…”

Source: RevenueBase Database · checked Sep 23, 2026
5
TAAG
Indirect evidenceOttawa, ON, CanadaHQ checked Sep 23, 202651-20039 contacts →

Indirect evidence

“Accounting + Tax • Law • Wealth Family Office • Marketing + Design”

Source: RevenueBase Database · checked Sep 23, 2026
6
ITNET
Strong evidenceOttawa, ON, CanadaHQ checked Sep 23, 202651-20031 contacts →

Strong evidence

“ITnet is a leading consulting firm dedicated to providing superior service to our clients.”

Source: RevenueBase Database · checked Sep 23, 2026
7
Sandstone Group
Indirect evidenceOttawa, ON, CanadaHQ checked Sep 23, 20261-1024 contacts →

Indirect evidence

“Sandstone Group Sandstone Group, based in Ottawa, specializes in providing strategic advice to corporate executives in matters of public affairs, government relations, crisis…”

Source: RevenueBase Database · checked Sep 23, 2026
8
The Lansdowne Consulting Group
Strong evidenceOttawa, ON, CanadaHQ checked Sep 23, 202611-5022 contacts →

Strong evidence

“The Lansdowne Consulting Group creates custom-made solutions that help our customers succeed.”

Source: RevenueBase Database · checked Sep 23, 2026
9
49 Solutions
Strong evidenceOttawa, ON, CanadaHQ checked Sep 23, 202611-5019 contacts →

Strong evidence

“At 49 Solutions we consistently deliver top quality consulting services, supporting both business and technology.”

Source: RevenueBase Database · checked Sep 23, 2026
10
Differly INC
Indirect evidenceOttawa, ON, CanadaHQ checked Sep 23, 202611-5018 contacts →

Indirect evidence

“Founded in 2018, Differly Inc.”

Source: RevenueBase Database · checked Sep 23, 2026
11
P1 Consulting
Strong evidenceOttawa, ON, CanadaHQ checked Sep 23, 202611-5016 contacts →

Strong evidence

“Established in P1 Consulting has become one of Canada’s most dynamic and progressive consulting firms with a strong reputation for excellence.”

Source: RevenueBase Database · checked Sep 23, 2026
12
Nīewe Consulting LTD
Strong evidenceOttawa, ON, CanadaHQ checked Sep 23, 202611-5015 contacts →

Strong evidence

“Founded in 2004, Nīewe Consulting (formerly Baiame Consulting) is a majority women-owned and led professional services firm that does consulting differently.”

Source: RevenueBase Database · checked Sep 23, 2026
13
Somos Consulting Group
Strong evidenceOttawa, ON, CanadaHQ checked Sep 23, 202651-20015 contacts →

Strong evidence

“Since its inception in 1991, SOMOS' team of experienced senior management consulting & IT professionals have provided solutions that address the needs of technology and…”

Source: RevenueBase Database · checked Sep 23, 2026
14
Discitus
Indirect evidenceOttawa, ON, CanadaHQ checked Sep 23, 202611-5013 contacts →

Indirect evidence

“Who we are… In 2009, Discitus began to help Clients align their organizations’ human systems with their true purpose.”

Source: RevenueBase Database · checked Sep 23, 2026
15
Newleaf Performance
Indirect evidenceOttawa, ON, CanadaHQ checked Sep 23, 20261-1012 contacts →

Indirect evidence

“Go from vision to sustainability as we roll-up our sleeves and work with you, your team, and your stakeholders to develop, practice and implement your performance-oriented…”

Source: RevenueBase Database · checked Sep 23, 2026
16
PGF Consultants
Indirect evidenceOttawa, ON, CanadaHQ checked Sep 23, 202611-5011 contacts →

Indirect evidence

“PGF Consultants helps organizations reach their full potential and serve their clienteles using structured and participatory processes.”

Source: RevenueBase Database · checked Sep 23, 2026
17
Arctech Accelerate
Strong evidenceOttawa, ON, CanadaHQ checked Sep 23, 202611-5011 contacts →

Strong evidence

“Headquartered in our nation’s capital, Arctech Accelerate is a Canadian management consulting and lobbying firm specializing in helping small and mid-sized businesses navigate…”

Source: RevenueBase Database · checked Sep 23, 2026
18
Clariti Group INC
Indirect evidenceOttawa, ON, CanadaHQ checked Sep 23, 20261-1011 contacts →

Indirect evidence

“Clariti Group was born out of a fundamental desire to help individuals and employers make more informed decisions around career and leadership.”

Source: RevenueBase Database · checked Sep 23, 2026
19
Hertford Advisors
Indirect evidenceOttawa, ON, CanadaHQ checked Sep 23, 202611-5010 contacts →

Indirect evidence

“We were founded in 2017, providing a range of Financial Management services to companies of all sizes.”

Source: RevenueBase Database · checked Sep 23, 2026
20
The Halifax Group
Strong evidenceOttawa, ON, CanadaHQ checked Sep 23, 202611-5010 contacts →

Strong evidence

“The Halifax Group is a multi-service consulting company.”

Source: RevenueBase Database · checked Sep 23, 2026
21
Ownershift
Indirect evidenceOttawa, CanadaHQ checked Sep 23, 20261-1010 contacts →

Indirect evidence

“We help restaurant owners create more time in their business so they can open new locations faster, make more money and have more freedom with their time.”

Source: RevenueBase Database · checked Sep 23, 2026
22
The Right Door Consulting & Solutions INC
Strong evidenceOttawa, ON, CanadaHQ checked Sep 23, 20261-109 contacts →

Strong evidence

“The Right Door Consulting & Solutions is, not surprisingly, all about solutions, ways of finding efficiencies and saving in the current economic environment.”

Source: RevenueBase Database · checked Sep 23, 2026
23
Vaive And Associates Professional Corporation
Strong evidenceOttawa, ON, CanadaHQ checked Sep 23, 202611-508 contacts →

Strong evidence

“Vaive and Associates Professional Corporation is a tax consulting, business advisory and accounting firm.”

Source: RevenueBase Database · checked Sep 23, 2026
24
Navio LAW
Indirect evidenceOttawa, ON, CanadaHQ checked Sep 23, 20261-108 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 23, 2026
25
Armstrong Jones LLP
Indirect evidenceOttawa, ON, CanadaHQ checked Sep 23, 20261-108 contacts →

Indirect evidence

“Armstrong Jones LLP is an accounting firm based in Ottawa, Ontario that offers services in accounting, audit and assurance, tax planning and compliance, and a wide array of…”

Source: RevenueBase Database · checked Sep 23, 2026

Showing 25 of 362 business consulting firm services based in Ottawa, Canada

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Business consulting firm services based in Ottawa, Canada at a glance

As of Sep 23, 2026
30.7%Verified-email coverage
4.5Average contacts per company
1-10Median size (employees)
573.8%Largest-city concentration · Toronto
Sep 23, 2026Page data refreshed

Companies by employee count

1-10
301
11-50
46
51-200
13

Email recency for this list is measured across the whole Canada list rather than for Ottawa, so it is reported there. Company counts and contact totals on this page are exact for Ottawa, over 362 companies.

How 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 Ottawa, 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 Ottawa 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, 503 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 in Canada

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 Ottawa, Canada?

RevenueBase identified 362 business consulting firm services headquartered in Ottawa, 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?

Corporate Renaissance Group, headquartered in Ottawa, 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 503 verified decision-maker contacts tracked across these 362 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.

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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.

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