Sven  Poysa

Sven Poysa

Partner, Employment and Labour

Key Contact: Employment and Labour

Contact Information

tel: 416.862.5934 (Tor)/ 514.904.5376 (Mtl)


Toronto, Montréal

Bar Admission

Ontario, 2006


  • McGill University, B.C.L./LL.B.
  • McMaster University, B.A. & B.Sc.
  • Institut des Etudes Politiques (Lyon), C.E.P.


English, French

Sven has significant experience in all areas of employment and labour law. He advises national and international companies on legal and strategic HR issues, including executive employment arrangements, corporate transactions, individual terminations, facility closures, workforce reorganizations, insolvencies and restructurings. In addition, Sven regularly advises a wide range of private and broader public sector clients on labour and employment compliance issues, outsourcings and program and service integrations. Sven has significant experience in collective bargaining matters, including union successorship issues and strategies. He regularly represents clients in judicial and administrative proceedings, with a focus on human rights, rights and interest arbitrations, mediations, workers’ compensation, employment standards, occupational health & safety, collective bargaining and wrongful dismissals. Sven has spoken and written on a wide-range of labour and employment topics, and teaches Legal Inquiry at McMaster University.  Prior to joining Osler, Sven clerked at the Quebec Court of Appeal with Justice Joseph Nuss. 

Sven has been recognized by Chambers Global as an up-and-coming individual who capably manages complex nationwide mandates.

  • WT Microelectronics

    WT Microelectronics in its acquisition of Future Electronics for USD$3.8 billion

  • Philip Fayer, founder, CEO and significant shareholder of Nuvei Corporation

    Philip Fayer, founder, CEO and significant shareholder of Nuvei Corporation, in proposed take private transaction of Nuvei Corporation valued at USD $6.3 billion

  • Diversey

    Diversey acquires certain assets of Avmor

  • Hootsuite

    Hootsuite in its $60 million acquisition of Heyday

  • IBM

    IBM in its acquisition of Expertus

  • Pier 1 Imports Inc.

    Pier 1 Imports in its Chapter 11 and CCAA Recognition Proceedings

  • Comark Holdings Inc.

    Comark completes sale transaction and emerges from creditor protection

  • Alvarez & Marsal Canada Inc.

    Alvarez & Marsal Canada Inc., as Receiver to Erwin Hymer Group North America Inc., announces proposed acquisition of Roadtrek RV brand by Rapido SAS

  • MindBeacon Software Inc.

    MindBeacon Software Inc. in its Series A Financing Round

  • Imagia Cybernetics Inc.

    Imagia Cybernetics Inc. in its acquisition of Cadens Medical Imaging

  • Blockstream Corporation

    Blockstream Corporation in its $21 million seed round financing

    • TPG Capital Inc. in connection with its acquisition of Cirque du Soleil, including establishing new executive employment arrangements for the leadership team


    Select Reported Cases:

    • Canada Bread Company Ltd. as lead counsel in Ontario Labour Relations Board proceedings relating to Teamsters' attempt to organize the Franchisees' of Canada Bread in five key depots in the Greater Toronto Area
    • Stanley Black and Decker Inc. as an advisor on a broad range of employment and labour issues including providing business critical legal and strategic advice on HR matters across Canada
    • Foot Locker Inc. as counsel on all employment and labour matters in Canada, spanning a diverse range of issues


    CCAA Proceedings:

    • Algoma Steel Inc. and certain senior secured term lenders in Canada in Algoma’s acquisition of substantially all the assets of Essar Steel Algoma in connection to a restructuring under the CCAA
    • Sears Canada Inc. in its CCAA proceedings and related restructuring efforts, which included the enactment of a unique Employee Hardship fund
    • Essar Steel Algoma Inc. as counsel during its CCAA proceedings involving a large primary employer in Sudbury
    • Target Canada in connection with all employee issues relating to its CCAA Proceedings, including the design and establishment of the unprecedented Employee Trust
    • Comark Inc. one of Canada's leading specialty apparel retailers, in connection with its CCAA proceedings

    Other Work:

    • Coordinating resolution of labour relations and employment claims and related restructuring issues in connection with the successful restructuring of a major Canadian corporation with both federally and provincially regulated employees working in multiple union and non-union operations across Canada
    • Employee and labour relations management, including advocating in numerous interest and rights arbitrations, providing collective bargaining agreement interpretation, and conducting bargaining, for a range of private sector and broader public sector employers
    • Providing strategic labour relations and union negotiation advice to a major multi-national manufacturer with respect to its successful out-of-court restructuring
    • Providing legal and strategic advice to a major multi-media Company on provincial-federal transfer of employees, union jurisdiction and bargaining rights, bargaining unit integration, compensation arrangements and other employment and labour matters relating to a $2.3B acquisition
    • Drafting executive compensation and retention arrangements, offer letters, contracts, employee communications and other transaction documents for a leading software company relating to a $4.9B acquisition
    • Preparing and advising on executive compensation arrangements, terminations and workforce restructurings for numerous national and international organizations in the both the private and public sectors
    • Successfully argued for the full dismissal of multiple human rights applications before the new Human Rights Tribunal of Ontario
    • Successfully argued numerous employer appeals before the WSIB Appeals Branch and the Workplace Safety and Insurance Appeals Tribunal
  • Find More

  • Chambers Canada: Canada's Leading Lawyers for Business: Recognized in Employment & Labour (Ontario)
  • Chambers Global: The World's Leading Business Lawyers: Recognized in Employment & Labour (Canada)
    • "[Sven has] a very keen awareness of the complexity of things."
    • "…[Sven] is recognized as an up-and-coming individual who provides valued advice and capably manages complex nationwide mandates."
  • Legal 500: Recognized as a Next Generation Lawyer, Labour and Employment

  • Sessional lecturer – Legal Inquiry, McMaster University

  • Canadian Bar Association
  • Ontario Bar Association
  • Law Society of Ontario

Employment & Labour Law in Quebec, Lexology Navigator, 2017-2018.

  • Canadian Employment Law, Legal 500: Country Comparative Guide, 2017-2018.
  • Don’t look at me – I’m working! New cases struggle to define employee privacy rights in the workplace, Canadian Corporate Counsel, Vol. 18, No. 7, June 2009.
  • The terms they are a-changin’: Ontario Court of Appeal sets new rules for changing terms of employment, Canadian Corporate Counsel, Vol. 17, No. 8, July/August 2008.
  • Retiring retiree benefits, Canadian Corporate Counsel, Vol. 17, No. 5, March/April 2008.
  • Dropping the axe, lightly: terminations done right, Canadian Corporate Counsel, Vol. 16, No. 6, May 2007.



  • Overtime and the Salaried Employee, Lorman Conference, April 2010 (Speaker).
  • O.B.A. Employment Law Conference, February 2008 (Speaker).