Company lists · Data refreshed September 2026

Top 25 Private client accounting firms based in Ottawa, Canada

Name: Private client accounting firms based in Ottawa, Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 94 companies tracked

RevenueBase identified 94 company matches for private client accounting firms associated with Ottawa, Canada as of September 2026 and tracks 1,356 professional contacts across them, including 688 with verified work emails. Across Canada, Toronto is the largest hub for this category (377 companies); Ottawa has 94.

This list covers company matches for private client accounting firms associated with Ottawa, Canada, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 5, 2026 How this list was built

94Companies

1,356Contacts tracked

688Verified emails

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The 25 largest private client accounting firms based in Ottawa, Canada

Ranked by team size

Top 25 of 94 company matches for private client accounting firms based in Ottawa, Canada, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 5, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Welch LLP	Exact match	Ottawa, ON, CanadaHQ recorded Sep 5, 2026	201-500	399 contacts →
	Exact match “Welch LLP is a Chartered Public Accounting firm that has deep roots in the communities it serves.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
2	Marcil Lavallée	Exact match	Ottawa, ON, CanadaHQ recorded Sep 5, 2026	51-200	109 contacts →
	Exact match “Marcil Lavallée est un partenaire engagé qui contribue activement à la réussite de ses clients en anticipant leurs besoins et en leur offrant une gamme complète de solutions…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
3	Ggfl LLP	Exact match	Ottawa, ON, CanadaHQ recorded Sep 5, 2026	51-200	94 contacts →
	Exact match “GGFL is the tax planning and accounting firm for Ottawa’s successful business people.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
4	Logan Katz LLP	Exact match	Ottawa, ON, CanadaHQ recorded Sep 5, 2026	51-200	80 contacts →
	Exact match “Logan Katz is a forward-thinking public accounting firm delivering high-quality, client inspired accounting, taxation, assurance and business advisory services in Ottawa and…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
5	Baker Tilly Ottawa LLP	Exact match	Ottawa, ON, CanadaHQ recorded Sep 5, 2026	51-200	80 contacts →
	Exact match “At Baker Tilly Ottawa LLP, we provide expert tax, assurance, and entrepreneurial services to help your business grow and prosper.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
6	Mccay Duff LLP	Exact match	Ottawa, ON, CanadaHQ recorded Sep 5, 2026	51-200	66 contacts →
	Exact match “McCay Duff LLP is a full-service Chartered Accountants Firm that has been serving the Ottawa area since 1946.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
7	Lekadir LLP	Exact match	Ottawa, ON, CanadaHQ recorded Sep 5, 2026	51-200	47 contacts →
	Exact match “Lekadir LLP is a Chartered Professional Accounting firm providing a full range of accounting, assurance, tax, and advisory services.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
8	TAAG	Exact match	Ottawa, ON, CanadaHQ recorded Sep 5, 2026	51-200	39 contacts →
	Exact match “Accounting + Tax • Law • Wealth Family Office • Marketing + Design” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
9	Capcorp Financial	Exact match	Ottawa, ON, CanadaHQ recorded Sep 5, 2026	11-50	37 contacts →
	Exact match “Capcorp Financial is a Canadian advisory firm built on one simple belief: good advice changes lives.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
10	Connelly & Koshy Professional Corporation	Exact match	Ottawa, ON, CanadaHQ recorded Sep 5, 2026	11-50	33 contacts →
	Exact match “Chartered Professional Accountants licensed to practice in Ontario and Quebec with offices in Ottawa and Shawville Practice areas- Accounting - Auditing of profit oriented…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
11	Onelife	Exact match	Ottawa, ON, CanadaHQ recorded Sep 5, 2026	11-50	15 contacts →
	Exact match “OneLife is solutions oriented in every respect.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
12	AI TAX Consultants	Exact match	Ottawa, ON, CanadaHQ recorded Sep 5, 2026	11-50	13 contacts →
	Exact match “AI Tax Consultants specializes in delivering tax and accounting services to individuals, self-employed and corporations.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
13	Ecivda Financial Planning Boutique	Exact match	Ottawa, ON, CanadaHQ recorded Sep 5, 2026	11-50	11 contacts →
	Exact match “We specialize in helping growth-minded individuals, business owners, & entrepreneurs in the areas of individual and corporate wealth, investment, employee, and estate planning.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
14	Vaive And Associates Professional Corporation	Exact match	Ottawa, ON, CanadaHQ recorded Sep 5, 2026	11-50	8 contacts →
	Exact match “Vaive and Associates Professional Corporation is a tax consulting, business advisory and accounting firm.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
15	Armstrong Jones LLP	Exact match	Ottawa, ON, CanadaHQ recorded Sep 5, 2026	1-10	8 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
16	Crosspoint Financial IA Private Wealth INC	Exact match	Ottawa, ON, CanadaHQ recorded Sep 5, 2026	1-10	8 contacts →
	Exact match “CrossPoint Financial is a full-service, boutique asset management and financial planning team in Ottawa dedicated to providing superior wealth management for our clients over…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
17	Ryan Lamontagne INC	Exact match	Ottawa, ON, CanadaHQ recorded Sep 5, 2026	11-50	7 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
18	Paterson & Company	Exact match	Ottawa, ON, CanadaHQ recorded Sep 5, 2026	11-50	7 contacts →
	Exact match “Similar to most CPA firms, we bring extensive income tax and financial statement preparation experience to our clients.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
19	L. Zinman & Company	Exact match	Ottawa, ON, CanadaHQ recorded Sep 5, 2026	1-10	6 contacts →
	Exact match “L.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
20	Boyer & Boyer, CPA	Exact match	Ottawa, ON, CanadaHQ recorded Sep 5, 2026	11-50	6 contacts →
	Exact match “Managing your own financial affairs is overwhelming and time-consuming!” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
21	Capital PRO Group	Exact match	Ottawa, ON, CanadaHQ recorded Sep 5, 2026	1-10	6 contacts →
	Exact match “Estate Planning Retirement Planning Educational Planning RRSP, TFSA, RRIF More.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
22	Synapse Accounting Group	Exact match	Ottawa, ON, CanadaHQ recorded Sep 5, 2026	1-10	5 contacts →
	Exact match “We are a cloud-based accounting firm.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
23	Leslie & Macleod, Chartered Accountants Cpas	Exact match	Ottawa, ON, CanadaHQ recorded Sep 5, 2026	11-50	5 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
24	Mirabel Management INC	Exact match	Ottawa, ON, CanadaHQ recorded Sep 5, 2026	1-10	5 contacts →
	Exact match “At Mirabel Management, we take a personal and holistic approach to financial planning, ensuring that every aspect of your needs is thoughtfully assessed before crafting a…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
25	Your Private CFO Family Wealth Iapw	Exact match	Ottawa, ON, CanadaHQ recorded Sep 5, 2026	1-10	5 contacts →
	Exact match “Entrepreneurs, Executives & Business Owners.you've been told your whole life to allocate your assets a certain way, right?” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “private client accounting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 94 private client accounting firms based in Ottawa, Canada

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Private client accounting firms based in Ottawa, Canada at a glance

As of Sep 5, 2026

50.7%Verified-email coverage

14.4Average contacts per company

1-10Median size (employees)

Sep 5, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

10001+

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 94 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Ottawa, Canada whose business descriptions match “private client accounting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 688 professional contacts with verified work emails across the full matched dataset. 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 5, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Private client accounting firms by metro in Canada

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “private client accounting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many private client accounting firms are there based in Ottawa, Canada?

RevenueBase identified 94 company matches for private client accounting firms associated with Ottawa, Canada as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Welch LLP tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in Canada has the most private client accounting firms?

Toronto leads Canada with 377 company records, followed by Calgary (219) and Vancouver (184). Ottawa has 94.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 688 professional contacts with verified work emails tracked across these 94 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 5, 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 SmartSearch, 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.