David Amidon is a partner in the Corporate Services practice group. He has over 30 years of experience helping a wide array of clients, serving as both corporate counsel and transactional counsel to a broad and diverse group of entrepreneurs, startup and emerging ventures, middle-market companies, private equity and venture capital funds, investment banking firms, private investors and public companies.

To his clients, Dave is a valued advisor, with unmatched responsiveness, a take-ownership and results-oriented deal approach, and a keen business sense.

Drawing on his decade of experience as a business executive and in-house general counsel, Dave has served as corporate counsel to a number of companies and entrepreneurs, and as counselor to the general counsels and law departments of corporate clients.

In addition, Dave maintains a sophisticated business transactional practice, focusing on business organization, capital formation and corporate finance, mergers and acquisitions, contracting and complex corporate transactions, including negotiation and documentation of diverse strategic alliances, joint ventures and partnering relationships.

His industry focuses include technology, business media (including meetings and events organizing and traditional and online marketing and media communications), print and digital publishing, hospitality, restaurant and food services, manufacturing and retail. He also represents issuers of securities and placement agents, venture capitalists and underwriters in both private and public offerings, and he counsels companies and their directors and officers on corporate governance matters and securities law compliance.


Prior to joining Armstrong Teasdale, Dave served as partner at a Boston-based multi-practice law firm. He also previously served as vice president and general counsel of a Massachusetts-based media communications company; a Florida-based tradeshow, conference and event organizer; and a Massachusetts rubber and vinyl products manufacturing company.

Before his in-house experience, Dave was a partner at a Boston multi-practice law firm, with a practice concentrating on corporate and securities law, mergers and acquisitions, and corporate finance.


  • Southern Methodist University School of Law  (J.D., 1982)
  • Lafayette College  (B.A., 1979)
    • Economics and Business Administration


  • Massachusetts

Professional Activities

  • American Bar Association
  • Massachusetts Bar Association
  • Boston Bar Association

Charitable and Civic Involvement

  • Massachusetts Youth Soccer Association (President)


  • Northeast Trailblazer, The American Lawyer (2022)
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