David S. Matheson
Awarded Practice Areas
Biography
David Matheson, a partner in the firm’s Business practice, brings value to clients by providing strategic and practical advice. He has more than 20 years of experience in counseling on corporate governance matters, raising capital through public and private equity and debt offerings, and acquiring and disposing of businesses and assets. David advises domestic and foreign public companies — including controlled companies and master limited partnerships — on their SEC and securities exchange reporting obligations, and assists boards of directors and management in fulfilling their fiduciary duties. Industries in which David's clients are involved include transportation, manufacturing, technology, retail and energy.
Representative of David's experience is his leadership of three IPOs and co-leading one IPO filing since 2005. He has assisted clients in raising billions of dollars through public offerings of common, preferred and debt securities, shelf offerings, PIPE and Rule 144A transactions, and private placements. David has provided buy-side and sell-side representation for private and public companies in small and multibillion dollar mergers and stock and asset transactions, and he represents Seaspan Corporation in its containership joint venture with an affiliate of global asset manager The Carlyle Group.
Chambers USA and other legal rating services recognize David as a leading attorney in corporate, capital markets, securities and M&A matters, Chambers USA describes David as "renowned for his experience and knowledge of capital markets and public companies" and quotes a client as stating, “Unflappable under pressure, [David] cuts through to the issue and works with the client to find a solution that both sides can embrace.”
Overview
- Spanish
- University of California Los Angeles, J.D., graduated 1991
- Stanford University, AB
- Oregon, Oregon State Bar
- Oregon State Bar Association - Member
- Spanish
- Oregon, Oregon State Bar
- Oregon State Bar Association - Member
- University of California Los Angeles, J.D., graduated 1991
- Stanford University, AB
Client Testimonials
Awards & Focus

- Mergers and Acquisitions Law, Portland, OR (2026)
- Corporate Law, Portland, OR (2023)
- Securities Regulation, Portland, OR (2023)
- Securities / Capital Markets Law, Portland, OR (2020)
- Securities Regulation, Portland, OR (2019)
- Corporate Law, Portland, OR (2018)
- Securities Regulation, Portland, OR (2016)
- Corporate Law
- Mergers and Acquisitions Law
- Securities / Capital Markets Law
- Securities Regulation
- Mining Law
- Peer Review Rated AV in Martindale-Hubbell
- Listed in Legal 500 United States, "Mergers, Acquisitions and Buyouts," 2008 - 2009
- Listed in Oregon Law & Politics, "Oregon Super Lawyers," 2006 - present
- Ranked by Chambers USA, as “America’s Leading Business Lawyers," 2005 - present
News & Media
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