Siskinds LLP is a full service law firm that traces back to 1932, when Abe Siskind started practicing law from an office on King Street in London, Ontario, across from the Covent Garden Market. The firm took on new partners and new names over the following decades, becoming Siskind, Taggart and Cromarty in the 1960s and then Siskind Cromarty after Harold Taggart retired. In 1990 it merged with Ivey and Dowler and became Siskind, Cromarty, Ivey and Dowler, and it now operates as Siskinds LLP.
Siskinds is headquartered in London, Ontario, with offices in Toronto, Sarnia, and Vancouver, plus a Quebec City affiliate, Siskinds Desmeules. It has grown into a team of more than 240 lawyers and staff working across more than 25 practice areas, covering business law, family law, wills and estates, personal injury, and employment and labour law, alongside a substantial plaintiff-side class actions practice. When Ontario became the first province outside Quebec to permit class action lawsuits in 1992, Siskinds filed the province's first certified class action. Chambers and Partners later ranked the firm's class actions group as Canada's top plaintiff-side class action firm in seven of the eight years between 2010 and 2018.
Abe Siskind started practicing law in 1932 from an office on King Street in London, Ontario, across from the Covent Garden Market.
The firm changed names as partners joined and retired, becoming Siskind, Taggart and Cromarty in the 1960s and Siskind Cromarty in the 1970s, then merging with Ivey and Dowler in 1990.
In 1992, when Ontario became the first province outside Quebec to permit class action lawsuits, Siskinds filed the province's first certified class action.
Siskinds opened its Toronto office in 2001, the same year its Quebec City affiliate, Siskinds Desmeules, opened.
Chambers and Partners ranked the firm's class actions group as Canada's top plaintiff-side class action firm in seven of the eight years between 2010 and 2018.
The firm's London headquarters relocated in 2021 to its current location in City Centre Towers, at the corner of Dundas and Wellington Streets.
Four lawyers who worked at Siskinds went on to become judges of the Ontario Superior Court of Justice: David A. Broad, Denise M. Korpan, Katie McKerlie, and Laddie Haines.
In the community
Siskinds employees have raised more than $1,109,000 for the YMCA's Camp Queen Elizabeth since 2014 through the firm's annual Jordan's Run the Runway event, held at airport locations across Southwestern Ontario.
The firm's Brain It On! Cognitive Corporate Challenge has raised more than $100,000 since 2019 for the Siskinds Acquired Brain Injury Innovation Fund at St. Joseph's Health Care Foundation.
Through the Lawyer Leadership Challenge for the United Way, Siskinds and nine other law firms have invested more than $800,000 in the community, and the firm received the 2025 Total Dollars Raised Award.
Siskinds supports pro bono legal services and encourages its lawyers to volunteer with organizations including Big Brothers Big Sisters, Habitat for Humanity, the London Abused Women's Centre, and Pro Bono Ontario.
1986–2025 · median 17 years in practice 19 of 19 lawyers
Law schools
Western University (8), University of Toronto (3), Université Laval (2), Osgoode Hall Law School, Queen's University, University of Ottawa and 2 more 18 of 19 lawyers
555 Burrard Street, Suite 16-111, Vancouver BC, V7X 1M8
The neighbourhood
Siskinds is headquartered in London, Ontario, and its Toronto office is a satellite location. Opened in 2001, it sits at 65 Queen Street West, directly across from Toronto City Hall and the downtown courthouse district. That location suits the office's focus: the Toronto team works mainly on class actions, a practice area built around litigation and courtroom motions rather than transactional work. The office is smaller than the London headquarters, and the firm describes it as a close team where junior lawyers and articling students take on real file work rather than routine research.
Frequently asked questions
Does Siskinds handle class action lawsuits?
Yes. Siskinds has worked in Ontario class actions since 1992, when it filed the province's first certified class action, and Chambers and Partners has ranked its class actions group as Canada's top plaintiff-side class action firm in seven of the eight years between 2010 and 2018. The Toronto office is largely dedicated to this practice.
Is Siskinds only a class actions firm?
No. Siskinds is a full service firm with more than 25 practice areas, including business law, family law, wills and estates, personal injury, and employment and labour law, in addition to class actions.
Where is the Siskinds Toronto office located?
The Toronto office is at 65 Queen Street West, Suite 400, across from Toronto City Hall and the courthouse. Siskinds is headquartered in London, Ontario, with additional offices in Sarnia and Vancouver, and a Quebec City affiliate, Siskinds Desmeules.
How long has Siskinds been practicing law?
Siskinds traces back to 1932, when Abe Siskind began practicing law in London, Ontario. The firm has operated under several names as partners joined and retired over the decades, and today it operates as Siskinds LLP.
Does the Toronto office take on articling students?
Yes. The Toronto office runs a ten month articling program each year, from early August to early June, and describes itself as a small team that gives students real file work rather than routine research.
Does Siskinds do pro bono work?
Siskinds says it supports pro bono legal services for individuals and organizations that could not otherwise afford them, and it encourages its lawyers to volunteer with community organizations.
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