Company lists · Data refreshed September 2026
Top 25 Family law firms based in Canada
RevenueBase identified 1,316 family law firms headquartered in Canada as of September 2026 and tracks 10,227 professional contacts across them, including 5,459 with verified work emails and 572 with mobile numbers. Toronto is the largest hub.
This list covers family law firms headquartered in 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 2, 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.
The 25 largest family law firms based in Canada
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 447 | ||||
“Lerners LLP is a full service law firm that has grown to become one of Ontario’s largest firms.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 2 | 220 | ||||
“Founded in 1907, Harper Grey LLP is a leading Vancouver, BC based business and litigation law firm.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 3 | 176 | ||||
“Harrison Pensa LLP is a full-service law firm with expertise in litigation, business law and real estate, and a strong focus in family, wills and estate, and personal injury law.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 4 | 133 | ||||
“Since 1964, Devry Smith Frank LLP (DSF) has provided trusted legal service to individuals, businesses, and institutions throughout Ontario.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 5 | 129 | ||||
“BC's oldest firm with a history of over 150 years of delivering practical, quality, and cost-effective legal services to the community since 1871.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 6 | 129 | ||||
“WITTEN LLP has its roots in the early 1900s when the late Abe W.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 7 | 114 | ||||
“SV Law has a long and distinguished history of providing Guelph and area residents and businesses with high-quality, personal and professional legal services.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 8 | 102 | ||||
“Ross & McBride LLP's clients include financial institutions and non-profit organizations, large public corporations and small family businesses, senior citizens and young people.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 9 | 98 | ||||
“Every client.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 10 | 97 | ||||
“We are a multi-service law firm based in the heart of downtown Vancouver's financial district and Dundarave in West Vancouver.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 11 | 96 | ||||
“Alepin Gauthier Avocats was founded in 1978 by Me François Alepin.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 12 | 87 | ||||
“Mills & Mills LLP is a Toronto law firm established 130 years ago which provides legal services of the highest quality to businesses and individuals, as well as to charitable and…” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 13 | 77 | ||||
“Since 1885, Fulton has offered a wide range of legal services to clients throughout BC.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 14 | 75 | ||||
“Legal services (primarily business law)” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 15 | 67 | ||||
“Welcome to Mann Lawyers LLP.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 16 | 67 | ||||
“Nixon Wenger LLP is a full service law firm located in Vernon, British Columbia with a well established regional practice.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 17 | 66 | ||||
“Pre-eminent family law firm in Canada with national and international reputation for handling sophisticated matters.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 18 | 61 | ||||
“For over 50 years, RDM Lawyers has been helping families, homeowners, businesses and Fraser Valley residents with all their legal needs.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 19 | 56 | ||||
“Sicotte Guilbault focuses on providing clients with a wide range of specialized corporate, commercial, municipal, employment, real estate, litigation & alternate dispute…” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 20 | 56 | ||||
“With offices in Vancouver and on Vancouver Island, Hammerco Lawyers has consistently helped individuals and businesses in B.C.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 21 | 51 | ||||
“At Low Murchison Radnoff LLP we provide a full range of legal services to our clients.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 22 | 50 | ||||
“DuMoulin Boskovich LLP is a full-service law firm providing strategic, results-driven legal solutions to individuals and businesses across British Columbia and beyond.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 23 | 49 | ||||
“Aikins is a leading Winnipeg business law firm with over 90 lawyers.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 24 | 48 | ||||
“Templeman is a mid-size law firm with offices in Belleville, Kingston and Napanee, Ontario.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 25 | Tapper Cuddy LLPIndirect evidence | 47 | |||
“Our lawyers make what’s complex clear in language that’s easy to understand.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 1,316 family law firms based in Canada
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Family law firms based in Canada at a glance
As of Sep 2, 2026Companies by employee count
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 family law 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 Canada whose own description of what they do matches “family law 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 family law firms, and records with no verified work email. Companies headquartered outside Canada 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, 5,459 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 2, 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.
Family law firms by metro
- Family law firms in Toronto180
- Family law firms in Calgary97
- Family law firms in Edmonton71
- Family law firms in Vancouver64
- Family law firms in Mississauga56
- Family law firms in Ottawa53
- Family law firms in Montreal47
- Family law firms in Surrey28
Frequently asked
How many family law firms are there based in Canada?
RevenueBase identified 1,316 family law firms headquartered in 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?
Lerners LLP, headquartered in Kitchener, tops this list with the largest team on record.
Which city has the most family law firms?
Toronto leads with 180 headquartered companies, followed by Calgary (97) and Edmonton (71).
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 5,459 verified decision-maker contacts tracked across these 1,316 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 2, 2026.
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Family law firms by geography
- Family law firms based in the United States
- Family law firms based in Brazil
- Family law firms based in the United Kingdom
- Family law firms based in Australia
- Family law firms based in Germany
- Family law firms based in Spain
- Family law firms based in France
- Family law firms based in the Netherlands
- Family law firms based in South Africa
- Family law firms based in Italy
- Family law firms based in Poland
- Family law firms based in Belgium
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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.