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Brendan Gutierrez McDonnell

Managing Partner, Portland Office
Fax +1.503.553.6210
Brendan McDonnell is the managing partner of the firm’s Portland office and serves on the firm management committee for K&L Gates. He counsels clients on corporate and securities laws, mergers and acquisitions and public and private financings, including private equity and venture capital transactions. Mr. McDonnell’s practice focuses on the legal and business issues affecting public and private growth companies, both in the technology and non–technology sectors. He also regularly represents some of the regions most active private equity funds.

Mr. McDonnell counsels companies on a variety of everyday business issues including advice on securities laws, corporate laws (including director and officer duties), executive compensation plans and general corporate contracts. He has worked with clients at every stage of development, from initial formation to Fortune 1000 status.

Mr. McDonnell understands the importance of learning a client's business before providing business critical legal advice and works directly with his clients to implement tailored solutions to their complex business problems.

Mr. McDonnell’s accounting background affords him an advantage in understanding his clients’ business and financial objectives. He served on the board of directors of Hollis Eden Pharmaceuticals, Inc. (NASDAQ: HEPH) from 1996 to 2008, including service on the compensation, audit and nominating committees. In 2000 and 2001, he served as an adjunct professor of law at Northwestern School of Law of Lewis & Clark College.


  • Mr. McDonnell was recently nominated for the inaugural Changing Lawyer Award at the International Legal Technology Association Annual Conference, recognizing and celebrating his unwavering commitment to client service and visionary approach to the disruption of the traditional legal practice.
  • Mr. McDonnell has been listed since 2006 as a top-rated mergers and acquisitions lawyer in Super Lawyers.
  • Mr. McDonnell has been listed since 2008 as a leading corporate/M&A lawyer in Chambers USA.
  • Mr. McDonnell has been listed since 2012 in Best Lawyers guide for Corporate Law.

Professional/Civic Activities

  • Oregon State Bar (Past Chair, Executive Committee, Business Section)
  • California Bar Association
  • Washington Bar Association
  • Hispanic National Bar Association
  • Society of Corporate Secretaries and Governance Professionals
  • Chair, Oregon State Bar International Trade in Legal Services Task Force
  • Former Board Member, Oregon Food Bank (Member of the Strategic Plan Committee, Nominating and Board Development Committee and the Fund Development Committee)
  • Representation of Vigor Industrial as corporate and M&A counsel
  • Representation of SAS Institute as international M&A counsel
  • Representation of Diana Foods as US corporate and M&A counsel
  • Representation of Waggener Edstrom Worldwide as corporate and M&A counsel
  • Representation of FEI Company in certain international corporate and M&A transactions
  • Representation of OIA Global Logistics SCM and Oregon International Air Freight Company as corporate and M&A counsel
  • Representation of Advantest Corporation in business development transactions
  • Representation of Endeavour Capital in private equity acquisitions
  • Representation of Riverlake Partners in private equity acquisitions
  • Representation of Wedbush Capital Partners in private equity acquisitions