Professional Biography
Image of Andrew B. Moore

Andrew B. Moore Partner

  • Seattle

    D +1.206.359.8649

    F +1.206.359.9649


    1201 Third Avenue, Suite 4900

    Seattle, WA 98101-3099




Andrew Moore, a partner in the firm’s Corporate practice, focuses his practice on public offerings and corporate finance, securities regulation, corporate governance and mergers and acquisitions. Andrew is a leader of the firm’s public companies group, regularly advising public companies on best corporate governance practices, disclosure matters and SEC compliance. He has a wide range of securities offering experience, including initial and follow-on public offerings, and shelf offerings of both debt and equity securities. His corporate clients include Adobe, Alliant Energy,, Avalara, Costco Wholesale Corporation, Idaho Power Company, Microsoft Corporation, Puget Sound Energy, Tronc and Zillow Inc.

Andrew is a co-author of The Public Company Handbook: A Corporate Governance and Disclosure Guide for Directors and Executives and a contributor to The Initial Public Offering Handbook: A Guide for Entrepreneurs, Executives, Directors and Private Investors (2008). He serves as a speaker for the National Investor Relations Institute on a variety of public company topics, including SEC disclosure, Regulations FD, G and M-A, and key issues in public company governance. Andrew also has extensive mergers and acquisitions experience, representing Puget Energy in its $7.4 billion sale, Microsoft in acquisitions, including the acquisitions of Yammer, Inc. and Nasdaq-listed Greenfield Online Inc., in its acquisitions, and Nasdaq-listed Zillow Inc. in its recent acquisitions of RentJuice, Mortech and Diverse Solutions.


Ranked by Chambers and Best Lawyers

Named “Securities / Capital Markets Law Lawyer of the Year” by The Best Lawyers in America, 2023
Ranked by Chambers USA 13 years in a row

Professional Recognition

  • Named Best Lawyers in America "Lawyer of the Year, Mergers and Acquisitions Law," 2020; "Lawyer of the Year, Securities / Capital Markets Law," 2023
  • Listed in Best Lawyers in America: Corporate Law; Mergers and Acquisitions Law; Securities / Capital Markets Law; Securities Regulation, 2012 – 2023
  • Ranked by Chambers USA, as “America’s Leading Business Lawyers", 2010 – 2022
  • Listed in Super Lawyers Magazine, “Washington's Super Lawyers", 2005, 2011 – 2020
  • Listed in Washington Law & Politics, “Rising Stars of Washington Law", 2001 – 2020, 2004 – 2005
  • Recommended by The Legal 500: Industry Focus: M&A/Corporate and Commercial - M&A: middle market (sub-$500m), 2015

Professional Leadership

  • University of Washington Business School, Center for Innovation and Entrepreneurship, Advisory Board, 2007
  • American Bar Association, Business Law Section
  • Washington State Bar Association, Business Law Section

Community Involvement

  • Bellevue Boys and Girls Club, Board Member