David Jamieson

David Jamieson

Partner, Emerging and High Growth Companies

Contact Information


tel: 416.862.4853



David is a partner in Osler’s Emerging and High Growth Companies Practice Group in our Toronto office. David’s practice focuses on corporate finance, mergers and acquisitions and general corporate/commercial matters, with a particular emphasis on the representation of emerging and high growth companies (throughout their lifecycles), the venture capital, growth equity and private equity funds and other investors that finance them and the strategic acquirors who buy them. David is broadly experienced with corporate formation and governance matters, venture capital and private equity financing transactions and a variety of acquisition and divestiture transaction structures on both the buy and sell side.

David plays a central role in Osler’s relationships with Rotman’s Creative Destruction Lab, Next Canada (including Next AI, Next 36 and Next Founders) and the C100.

David completed his J.D. degree at Queen’s University and obtained his Bachelor of Commerce from McGill University, with a concentration in Entrepreneurial Studies. During his studies, David participated in study abroad exchanges at Sydney University (Australia), the Queen’s International Study Centre (England) and the Université libre de Bruxelles (Belgium).

  • ArenaX Labs

    ArenaX Labs in its closing of a $6 million financing round

  • Sibli

    Sibli in its closing of $6 million of seed funding

  • Erthos

    Erthos in its $6.5 million Series A financing round

  • Agnostiq Inc.

    Agnostiq Inc. in its raising of $8.22 million financing

  • Loopio Inc.

    Loopio Inc. in its acquisition of Avnio

  • Future Fields Cellular Agriculture and Research Ltd.

    Future Fields in its $15 million Seed Extension Round

  • Round13 E-Fund, L.P.

    Round13 in its investment in Alvéole’s Series A financing round

  • Halp Technologies

    Halp in its $5.5 million financing

  • Avidbots

    Avidbots in its US$70 million Series C financing

  • Integral Treasury Inc.

    Integral in its $8.5 million Seed Financing

  • LumiQ

    LumiQ in its $5 million funding round

  • AtomVie Global Radiopharma

    AtomVie in its spinout and Series A Financing

  • Interaxon

    Interaxon in its US$9.5 million Series C financing round

  • Oncoustics Inc.

    Oncoustics in its $5.5 million seed financing

  • Delphia

    Delphia in its US$60 million Series A financing round

  • Neo Financial Technologies

    Neo Financial Technologies in its $185 million Series C Financing

  • COSM Medical

    COSM Medical in its US$3.8 million seed round

  • e-Zinc

    e-Zinc in its US$25 million Series A financing round

  • IntelliCulture

    IntelliCulture in its seed round

  • Mayday

    Mayday in its seed financing

  • Flashfood

    Flashfood in its US$12.3 million Series A financing

  • Inkbox Ink

    Inkbox Ink in its US$65 million acquisition by BIC

  • Angus Systems

    Angus Systems in its acquisition by MRI Software

  • Ten Coves Capital

    Ten Coves Capital in its connection with Boosted.ai’s US$35 million Series B financing round

  • Ten Coves Capital

    Ten Coves Capital in connection with TealBook’s US$50 million Series B Financing

    • SkyWatch Space Applications Inc. in its $10 million Series A financing round
    • Meta in connection with its acquisition by Chan Zuckerberg Initiative.
    • Insception Biosciences in connection with its sale to Cell Care, and its prior acquisition of Lifebank by way of takeover bid.
    • ScribbleLive in connection with its expansion round of financing and acquisitions of Appinions, Visually, Scompler and Linkdex.
    • Blynk in connection with its acquisition by Kik Interactive Inc.
    • Universe in connection with its sale to Ticketmaster.
    • Affinium Pharmaceuticals in connection with its sale to Debiopharm.
    • IBM in connection with its acquisition of Varicent Software and Platform Computing.
    • TMX Group in connection with the formation of FTSE TMX Debt Capital Markets joint venture with FTSE.
    • Zelnick Media in its investment in 9 Story Limited.
    • Numerous emerging technology companies and venture capital and angel investors in connection with various financing transactions.
  • Find More

  • Chambers Canada: Canada’s Leading Lawyers for Business: Recognized in Startups and Emerging Companies

  • NEXT Canada, Next 36, Next Founders and NextAI
  • Creative Destruction Lab - University of Toronto
  • Big Brothers Big Sisters

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