Company lists · Data refreshed September 2026

Top 21 Private client accounting firms based in London, Canada

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

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 55 companies tracked

RevenueBase identified 55 private client accounting firms headquartered in London, Canada as of September 2026 and tracks 522 professional contacts across them, including 243 with verified work emails. Across Canada, Toronto is the largest hub for this category (377 companies); London has 55.

This list covers private client accounting firms headquartered in London, 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 5, 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 5, 2026 86% judged on-target in blind review

55Companies

522Contacts tracked

243Verified emails

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The 21 largest private client accounting firms based in London, Canada

Ranked by team size

Top 21 of 55 private client accounting firms based in London, Canada, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to private client accounting firms: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Davis Martindale LLP	Indirect evidence	London, ON, CanadaHQ checked Sep 5, 2026	51-200	122 contacts →
	Indirect evidence “At Davis Martindale, our accountants work to bring you the peace of mind you’re in search of with a touch of personality.” Source: RevenueBase Database · checked Sep 5, 2026
2	SPM Financial	Indirect evidence	London, ON, CanadaHQ checked Sep 5, 2026	11-50	42 contacts →
	Indirect evidence “We deal primarily with business owners and their families.” Source: RevenueBase Database · checked Sep 5, 2026
3	Marcus & Associates LLP Hoare Dalton	Partial evidence	London, ON, CanadaHQ checked Sep 5, 2026	11-50	32 contacts →
	Partial evidence “Marcus & Associates Hoare•Dalton provide our clients high-quality service drawing on the experience of our individual specialties.” Source: RevenueBase Database · checked Sep 5, 2026
4	Fisher Professional Corporation	Indirect evidence	London, ON, CanadaHQ checked Sep 5, 2026	11-50	26 contacts →
	Indirect evidence “Fisher Professional Corporation is a well established London-based CPA firm.” Source: RevenueBase Database · checked Sep 5, 2026
5	Valente Cpas	Strong evidence	London, ON, CanadaHQ checked Sep 5, 2026	11-50	23 contacts →
	Strong evidence “At Valente CPAs, we take pride in providing the highest level of advisory, tax and accounting services for all of our clients, while maintaining a professional, supportive and…” Source: RevenueBase Database · checked Sep 5, 2026
6	NPT LLP	Partial evidence	London, ON, CanadaHQ checked Sep 5, 2026	51-200	23 contacts →
	Partial evidence “NPT LLP is a professional accounting and advisory firm in London, Ontario and the largest non-national accounting firm in Southwestern Ontario.” Source: RevenueBase Database · checked Sep 5, 2026
7	Macneill Edmundson Professional Corporation	Partial evidence	London, ON, CanadaHQ checked Sep 5, 2026	11-50	22 contacts →
	Partial evidence “MacNeill Edmundson Professional Corporation is an accounting firm proudly based in London, Ontario, Canada and founded in 1979.” Source: RevenueBase Database · checked Sep 5, 2026
8	Wilkinson Rogers LLP Chartered Professional Accountants	Partial evidence	London, ON, CanadaHQ checked Sep 5, 2026	11-50	17 contacts →
	Partial evidence “Wilkinson Rogers LLP is a full-service Chartered Professional Accounting Firm with experience & expertise serving small to medium sized owner-managed businesses in London and…” Source: RevenueBase Database · checked Sep 5, 2026
9	RED Jacket Capital INC	Partial evidence	London, ON, CanadaHQ checked Sep 5, 2026	1-10	9 contacts →
	Partial evidence “We use our legal and portfolio management expertise to achieve exceptional results for our clients.” Source: RevenueBase Database · checked Sep 5, 2026
10	NG Chartered Professional Accountants	Indirect evidence	London, ON, CanadaHQ checked Sep 5, 2026	1-10	8 contacts →
	Indirect evidence “At NG Chartered Professional Accountants, we provide specialized, solutions-based corporate tax and estate planning strategies for businesses, business owners, and families across…” Source: RevenueBase Database · checked Sep 5, 2026
11	Furlonger Associates Professional Corporation	Partial evidence	London, ON, CanadaHQ checked Sep 5, 2026	11-50	7 contacts →
	Partial evidence “Furlonger Associates is a full-service Tax, Accounting, Bookkeeping and Payroll company geared exclusively to small business owners.” Source: RevenueBase Database · checked Sep 5, 2026
12	Lunick & Co. CA Professional Corporations	Indirect evidence	London, ON, CanadaHQ checked Sep 5, 2026	1-10	7 contacts →
	Indirect evidence “Chartered Accountants” Source: RevenueBase Database · checked Sep 5, 2026
13	Benson Inkster Brighton Professional Corporation	Indirect evidence	London, ON, CanadaHQ checked Sep 5, 2026	1-10	5 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 5, 2026
14	Bluecaribou Chartered Accountants	Partial evidence	London, ON, CanadaHQ checked Sep 5, 2026	1-10	4 contacts →
	Partial evidence “blueCaribou is a full-service accounting firm providing the most comprehensive and individually tailored tax, accounting and advisory services.” Source: RevenueBase Database · checked Sep 5, 2026
15	Success Foundations Wealth Management	Indirect evidence	London, ON, CanadaHQ checked Sep 5, 2026	1-10	3 contacts →
	Indirect evidence “Financial Planners in London, Ontario We live in a world that’s rapidly changing.” Source: RevenueBase Database · checked Sep 5, 2026
16	Bayswater Wealth Management	Indirect evidence	London, ON, CanadaHQ checked Sep 5, 2026	1-10	3 contacts →
	Indirect evidence “Don't just chase your dreams.” Source: RevenueBase Database · checked Sep 5, 2026
17	The Seabrook Financial Group	Indirect evidence	London, ON, CanadaHQ checked Sep 5, 2026	11-50	3 contacts →
	Indirect evidence “Nobody cares what you know, until they know that you care.” Source: RevenueBase Database · checked Sep 5, 2026
18	Osman Accounting Services	Partial evidence	London, ON, CanadaHQ checked Sep 5, 2026	1-10	3 contacts →
	Partial evidence “A personalized approach to your accounting & tax needs.” Source: RevenueBase Database · checked Sep 5, 2026
19	Affiniti Wealth	Indirect evidence	London, ON, CanadaHQ checked Sep 5, 2026	1-10	2 contacts →
	Indirect evidence “Investment Counsel Affiniti Wealth is uniquely differentiated by our commitment to process before ever making any recommendations.” Source: RevenueBase Database · checked Sep 5, 2026
20	The Panorama Business Group	Indirect evidence	London, ON, CanadaHQ checked Sep 5, 2026	1-10	2 contacts →
	Indirect evidence “Building Financial, Tax and Investment Strategies that work: Professional advice, proven products, and a network of experts.” Source: RevenueBase Database · checked Sep 5, 2026
21	Steven C Varey CPA	Indirect evidence	London, ON, CanadaHQ checked Sep 5, 2026	1-10	1 contacts →
	Indirect evidence “Helping Entrepreneurs Achieve Financial Success Professional CPA Firm Providing Expert Services to Businesses and Individuals in the Greater London, Ontario Area Entrepreneurs…” Source: RevenueBase Database · checked Sep 5, 2026

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: private client accounting firms. 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 private client accounting firms.
Partial evidence: Its own public description names part of private client accounting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name private client accounting firms. 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 21 of 55 private client accounting firms based in London, Canada

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

As of Sep 5, 2026

46.6%Verified-email coverage

9.5Average contacts per company

1-10Median size (employees)

Sep 5, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

Email recency for this list is measured across the whole Canada list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 55 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 private client accounting firms, 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 London, Canada whose own description of what they do matches “private client accounting firms”. 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 private client accounting firms), 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 private client accounting firms, and records with no verified work email. Companies headquartered outside London 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, 243 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.

Private client accounting firms 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 private client accounting firms, 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 private client accounting firms are there based in London, Canada?

RevenueBase identified 55 private client accounting firms headquartered in London, 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?

Davis Martindale LLP, headquartered in London, tops this list with the largest team on record.

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

Toronto leads Canada with 377 headquartered companies, followed by Calgary (219) and Vancouver (184). London has 55.

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 243 verified decision-maker contacts tracked across these 55 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 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.