David W. Kantaros



David W. Kantaros serves as Co-Chair for Artificial Intelligence within our Innovative Technology sector and is a member of the Private Equity & Venture Capital and Transactional & Securities Practices. He represents venture capital and private equity funds as well as publicly and privately held corporations in the emerging technology and life science industries.

Representative Experience

David's experience includes:

  • Representing private equity funds, family offices, and public and private companies in mergers and acquisitions, joint-ventures, public offerings, and control investments.
  • Advising venture capital firms, strategic investors, and high net worth individuals and investment groups in private placement activities, including preferred stock and secured and convertible debt financing in technology and life science companies.
  • Counseling high-tech, as well as biotechnology, pharmaceutical and medical device companies as to corporate structure, technology protection and transactional matters.
  • Advising investors, corporate boards and public and private companies on complex domestic and cross-border transactions including corporate migrations, re-incorporations and joint venture arrangements.
  • Structuring and negotiating technology license agreements, including master license agreements, OEM agreements, Beta test agreements, shrinkwrap agreements and strategic relationships involving the sharing of technology.

Representative Transactions

  • Represented Digital Guardian, a SaaS provider of data loss prevention (DLP) solutions, in its sale to HelpSystems (October 2021)
  • Represented Panalgo, a healthcare data analytics company, in its sale to Managed Markets Insights & Technology (September 2021) 
  • Represented 829 Studios, a digital marketing services company, in a control investment by CVIC partners (September 2021)
  • Represented Mayo Clinic in a strategic control investment with Kaiser Permanente in Medically Home, a technology-enabled services company providing platforms for in-home care (May 2021)
  • Served as co-counsel for AST Space Mobile, a developer of space-based cellular broadband network to be accessible by smartphones, in its SPAC IPO with an equity value of $1.8 billion (May 2021)
  • Represented Symphony AI in its acquisition of TeraRecon, an AI medical imaging company (March 2020)
  • Represented Alpine Space Ventures as lead investor in a Series A financing in Morpheus Space, Inc., a leading satellite mobility provider (July 2022)
  • Represented ConcertAI, an oncology-focused real-world data and SaaS startup, in a 150M Series C financing from Sixth Street Partners with a 1.9B valuation (February 2022)
  • Represented Teikametrics, the leading optimization platform for sellers on Amazon and Walmart, in a 40M Series B financing led by Intel (July 2021)
  • Represented Utilidata, an industry leading grid-edge software company, in a 26M Series D financing from Moore Strategic Ventures (MSV), Microsoft Climate Innovation Fund and NVIDIA (February 2022)
  • Represented AIMI, and AI powered music platform, in a 20M Series B financing from Great Mountain Partners and Founders Fund (November 2021)
  • Represented Stage 1 Ventures in in a 52M preferred stock investment in Witricity, a wireless charging company, with co-investments from Air Waves Wireless Electricity and Mitsubishi Corporation (Americas) (February 2021)
  • Represented AST&Science in a 128M Series B financing from Rakuten, Vodafone, American Tower and Samsung Next (June 2020)

Thought Leadership

David has lectured on issues relating to representation of venture capital funds and portfolio companies in private equity financings, representing buyers and sellers in mergers and acquisitions and the structuring of strategic relationships and joint ventures around technology developments.


David has been selected for inclusion in the 2005 and 2006 Massachusetts Super Lawyers–Rising Stars® editions for his work in securities and corporate finance. He has also been selected by his peers for inclusion in The Best Lawyers in America© since 2012 in the field of Venture Capital Law.


  • Suffolk University Law School (J.D., 1994)
  • Brown University (B.A., 1988)


  • Massachusetts

Professional Memberships

  • Member, American Bar Association
  • Member, Massachusetts Bar Association