Company lists · Data refreshed September 2026

Top 24 Management accounting firms based in Ottawa, Canada

Name: Management 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 45 companies tracked

RevenueBase identified 45 management accounting firms headquartered in Ottawa, Canada as of September 2026 and tracks 970 professional contacts across them, including 523 with verified work emails. Toronto is the largest hub.

This list covers management accounting firms 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, how directly it supports the match, and when it was last checked. 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 HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

45Companies

970Contacts tracked

523Verified emails

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The 24 largest management accounting firms based in Ottawa, Canada

Ranked by team size

Top 24 of 45 management accounting firms based in Ottawa, Canada, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names management accounting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Welch LLPPartial evidence	Ottawa, ON, CanadaHQ checked Sep 5, 2026	201-500	399
	“Welch LLP is a Chartered Public Accounting firm that has deep roots in the communities it serves.” Source: company website · checked Sep 5, 2026
2	Marcil LavalléeIndirect evidence	Ottawa, ON, CanadaHQ checked Sep 5, 2026	51-200	109
	“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…” Source: company website · checked Sep 5, 2026
3	Ggfl LLPPartial evidence	Ottawa, ON, CanadaHQ checked Sep 5, 2026	51-200	94
	“GGFL is the tax planning and accounting firm for Ottawa’s successful business people.” Source: company website · checked Sep 5, 2026
4	Logan Katz LLPPartial evidence	Ottawa, ON, CanadaHQ checked Sep 5, 2026	51-200	80
	“Logan Katz is a forward-thinking public accounting firm delivering high-quality, client inspired accounting, taxation, assurance and business advisory services in Ottawa and…” Source: company website · checked Sep 5, 2026
5	Mccay Duff LLPIndirect evidence	Ottawa, ON, CanadaHQ checked Sep 5, 2026	51-200	66
	“McCay Duff LLP is a full-service Chartered Accountants Firm that has been serving the Ottawa area since 1946.” Source: company website · checked Sep 5, 2026
6	Lekadir LLPPartial evidence	Ottawa, ON, CanadaHQ checked Sep 5, 2026	51-200	47
	“Lekadir LLP is a Chartered Professional Accounting firm providing a full range of accounting, assurance, tax, and advisory services.” Source: company website · checked Sep 5, 2026
7	Connelly & Koshy Professional CorporationPartial evidence	Ottawa, ON, CanadaHQ checked Sep 5, 2026	11-50	33
	“Chartered Professional Accountants licensed to practice in Ontario and Quebec with offices in Ottawa and Shawville Practice areas- Accounting - Auditing of profit oriented…” Source: company website · checked Sep 5, 2026
8	Armstrong Jones LLPPartial evidence	Ottawa, ON, CanadaHQ checked Sep 5, 2026	1-10	8
	“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: company website · checked Sep 5, 2026
9	The BM GroupStrong evidence	Ottawa, ON, CanadaHQ checked Sep 5, 2026	11-50	8
	“The Business Management Group is a boutique accounting firm located in the heart of Westboro.” Source: company website · checked Sep 5, 2026
10	L. Zinman & CompanyIndirect evidence	Ottawa, ON, CanadaHQ checked Sep 5, 2026	1-10	6
	“L.” Source: company website · checked Sep 5, 2026
11	Boyer & Boyer, CPAIndirect evidence	Ottawa, ON, CanadaHQ checked Sep 5, 2026	11-50	6
	“Managing your own financial affairs is overwhelming and time-consuming!” Source: company website · checked Sep 5, 2026
12	NumetricaIndirect evidence	Ottawa, ON, CanadaHQ checked Sep 5, 2026	1-10	6
	“Our Mission An accountant has a unique position in the world.” Source: company website · checked Sep 5, 2026
13	Leslie & Macleod, Chartered Accountants CpasIndirect evidence	Ottawa, ON, CanadaHQ checked Sep 5, 2026	11-50	5
	Source: company website · checked Sep 5, 2026
14	Ouseley Hanvey Clipsham Deep LLPIndirect evidence	Ottawa, ON, CanadaHQ checked Sep 5, 2026	11-50	4
	“OHCD is a firm of Chartered Accountants that was founded in the Ottawa area in 1984.” Source: company website · checked Sep 5, 2026
15	Jordash Co. LteeIndirect evidence	Ottawa, ON, CanadaHQ checked Sep 5, 2026	1-10	4
	“Jordash Co.” Source: company website · checked Sep 5, 2026
16	Elevate By Welch LLPPartial evidence	Ottawa, ON, CanadaHQ checked Sep 5, 2026	201-500	4
	“Elevate by Welch LLP is designed as a one-stop shop for all your accounting needs.” Source: company website · checked Sep 5, 2026
17	Balanced Solutions - CASPartial evidence	Ottawa, ON, CanadaHQ checked Sep 5, 2026	1-10	3
	“We specialize in partnering with small to medium sized businesses that are not yet ready for all the aspects (and cost!) of a full-time, in-house accounting team, Controller or…” Source: company website · checked Sep 5, 2026
18	Robert CPA Professional CorporationPartial evidence	Ottawa, ON, CanadaHQ checked Sep 5, 2026	1-10	2
	“We are an independent accounting firm serving the Orléans/Ottawa region.” Source: company website · checked Sep 5, 2026
19	Mcintyre & Associates Chartered AccountantsPartial evidence	Ottawa, ON, CanadaHQ checked Sep 5, 2026	1-10	2
	“Ottawa’s leading Chartered Accountants specializing in providing accounting, audit, taxation, consulting, assisting you from start-up to succession” Source: company website · checked Sep 5, 2026
20	SixtopIndirect evidence	Ottawa, ON, CanadaHQ checked Sep 5, 2026	1-10	2
	“From our experience working in restaurants and working with restaurants we've realized one thing - running a restaurant is hard!” Source: company website · checked Sep 5, 2026
21	Vision Bookkeeping And Financial ServicesPartial evidence	Ottawa, ON, CanadaHQ checked Sep 5, 2026	1-10	2
	“We are a small group of accountants that work to provide our customers with timely and accurate accounting services.” Source: company website · checked Sep 5, 2026
22	Performance Accounting SolutionsStrong evidence	Ottawa, ON, CanadaHQ checked Sep 5, 2026	1-10	1
	“We are a small accounting firm focusing primarily on performance management like internal financial statements, financial reports, financial analysis, budgets and forecasts…” Source: company website · checked Sep 5, 2026
23	Kirk CPA Professional CorporationIndirect evidence	Ottawa, CanadaHQ checked Sep 5, 2026	1-10	1
	“I work with small business owners who are stretched too thin.” Source: company website · checked Sep 5, 2026
24	Ibma Accounting LimitedPartial evidence	Ottawa, ON, CanadaHQ checked Sep 5, 2026	1-10	1
	“ibma Accounting is your wise choice!” Source: company website · checked Sep 5, 2026

Showing 24 of 45 management accounting firms based in Ottawa, Canada

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Management accounting firms based in Ottawa, Canada at a glance

As of Sep 5, 2026

1-10Median size (employees)

TorontoLargest hub · 184 HQs

Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured across the whole Canada list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Ottawa, over 45 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 management accounting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “management accounting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among management accounting firms, 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 an evidence 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, 523 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 5, 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.

Management accounting firms by metro in Canada

Management accounting firms in Toronto184
Management accounting firms in Calgary107
Management accounting firms in Mississauga100
Management accounting firms in Montreal97
Management accounting firms in Vancouver96
Management accounting firms in Edmonton62
Management accounting firms in Ottawa45
Management accounting firms in Surrey38
Management accounting firms in Laval36
Management accounting firms in Quebec36
Management accounting firms in Vaughan30
Management accounting firms in Richmond Hill29
Management accounting firms in Markham28
Management accounting firms in Winnipeg26

Frequently asked

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

RevenueBase identified 45 management accounting firms 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?

Welch LLP, headquartered in Ottawa, tops this list with the largest team on record.

Which city has the most management accounting firms?

Toronto leads with 184 headquartered companies, followed by Calgary (107) and Mississauga (100).

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 523 verified decision-maker contacts tracked across these 45 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 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.