Company lists · Data refreshed September 2026

Top 10 Law firm tax preparation services based in London, Canada

Name: Law firm tax preparation services based in London, Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 27 companies tracked

RevenueBase identified 27 law firm tax preparation services headquartered in London, Canada as of September 2026 and tracks 255 professional contacts across them, including 157 with verified work emails. Across Canada, Toronto is the largest hub for this category (184 companies); London has 27.

This list covers law firm tax preparation services 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 28, 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 28, 2026 86% judged on-target in blind review

27Companies

255Contacts tracked

157Verified emails

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The 10 largest law firm tax preparation services based in London, Canada

Ranked by team size

Top 10 of 27 law firm tax preparation services based in London, Canada, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to law firm tax preparation 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Davis Martindale LLP	Indirect evidence	London, ON, CanadaHQ checked Sep 28, 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 28, 2026
2	C & V Income TAX Services	Partial evidence	London, ON, CanadaHQ checked Sep 28, 2026	11-50	24 contacts →
	Partial evidence “C&V Income Tax Services is a professional tax service office operating in London, Ontario since 1988.” Source: RevenueBase Database · checked Sep 28, 2026
3	Macneill Edmundson Professional Corporation	Indirect evidence	London, ON, CanadaHQ checked Sep 28, 2026	11-50	22 contacts →
	Indirect evidence “MacNeill Edmundson Professional Corporation is an accounting firm proudly based in London, Ontario, Canada and founded in 1979.” Source: RevenueBase Database · checked Sep 28, 2026
4	Scott Petrie LLP LAW Firm	Partial evidence	London, ON, CanadaHQ checked Sep 28, 2026	1-10	18 contacts →
	Partial evidence “The business model for Scott Petrie LLP Law Firm, from the outset, has been the direct delivery of competent legal services by lawyers and staff working within specific areas of…” Source: RevenueBase Database · checked Sep 28, 2026
5	Northward TAX Professional Corporation	Partial evidence	London, ON, CanadaHQ checked Sep 28, 2026	11-50	9 contacts →
	Partial evidence “Our team started off as just another tax group in a regional accounting firm.” Source: RevenueBase Database · checked Sep 28, 2026
6	Furlonger Associates Professional Corporation	Partial evidence	London, ON, CanadaHQ checked Sep 28, 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 28, 2026
7	Benson Inkster Brighton Professional Corporation	Indirect evidence	London, ON, CanadaHQ checked Sep 28, 2026	1-10	5 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
8	Bluecaribou Chartered Accountants	Partial evidence	London, ON, CanadaHQ checked Sep 28, 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 28, 2026
9	Accounting Minds	Indirect evidence	London, ON, CanadaHQ checked Sep 28, 2026	1-10	3 contacts →
	Indirect evidence “We are a full service accounting firm based in London, Ontario.” Source: RevenueBase Database · checked Sep 28, 2026
10	Osman Accounting Services	Partial evidence	London, ON, CanadaHQ checked Sep 28, 2026	1-10	3 contacts →
	Partial evidence “A personalized approach to your accounting & tax needs.” Source: RevenueBase Database · checked Sep 28, 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: law firm tax preparation 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 law firm tax preparation services.
Partial evidence: Its own public description names part of law firm tax preparation services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name law firm tax preparation 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 10 of 27 law firm tax preparation services based in London, Canada

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Law firm tax preparation services based in London, Canada at a glance

As of Sep 28, 2026

61.6%Verified-email coverage

9.4Average contacts per company

1-10Median size (employees)

Sep 28, 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 27 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 law firm tax preparation 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 London, Canada whose own description of what they do matches “law firm tax preparation 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 law firm tax preparation 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 law firm tax preparation services, 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, 157 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 28, 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.

Law firm tax preparation 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 law firm tax preparation 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 law firm tax preparation services are there based in London, Canada?

RevenueBase identified 27 law firm tax preparation services 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 law firm tax preparation services?

Toronto leads Canada with 184 headquartered companies, followed by Mississauga (99) and Calgary (98). London has 27.

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 157 verified decision-maker contacts tracked across these 27 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 28, 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.