Mary Beth Kerrigan


Direct 781-697-2228
Fax 781-622-5933
Waltham, MA

An experienced corporate and business attorney, Mary Beth’s practice focuses on representing technology-based companies from formation through liquidity event.

Her practice includes advising clients with respect to angel financings, venture capital financings, and mergers and acquisitions. She also provides general corporate advice to her clients on such matters as capital structure, corporate governance, shareholder agreements, equity and executive compensation, licensing agreements, joint ventures, strategic alliances, and other intellectual property matters.  In addition to representing companies, Mary Beth also represents venture capital funds and other institutional investors in connection with their investments in portfolio companies.

A former member of the Firm’s Management Committee and its Associate Committee, Mary Beth currently chairs the Start-up and Venture Capital Practice Group.

  • Represented Silverlink Communications, Inc., a proven leader in engagement management technology for healthcare organizations, in connection with several rounds of venture capital financing from investors including Sigma Partners and HLM Venture Partners, and its ultimate sale to Welltok.
  • Represented Azimuth Systems, Inc., a leading provider of automated, real-world mobile performance test solutions, in connection with several rounds of venture capital financing from investors including North Bridge Venture Partners and Kodiak Venture Partners, and its ultimate sale to Anritsu.
  • Represented Aveksa, Inc., a leading provider of business driven identity and access management solutions, in connection with its sale to EMC.
  • Represented Prospectiv Direct, Inc., a leader in online performance marketing, as general outside counsel and in connection with its sale to Affinion.
  • Represented Pixtronix, Inc., a creator of multimedia display screens, as general outside counsel, in connection with several rounds of venture capital financing and in connection with its sale to Qualcomm.
  • Represented Entagen, LLC, an informatics company offering semantic search and navigation software and customer development services, as outside general counsel and in connection with its sale to Thomson Reuters.
  • Represented Kepha Partners, a Boston venture capital firm focused on pre-seed, seed and Series A companies, in connection with its investments in various portfolio companies.
  • Represented Help Scout, a provider of help desk support for businesses,inconnectionwithventurecapitalfinancings from investors including the Foundry Group and Converge. 
    Read the Case Study here.

Panelist, Legal Skills Bootcamp for the Transactional Attorney, Massachusetts Bar Association

Moderator, M&A Transaction Readiness, 2018 VC and M&A Forum

Panelist, Trends in the Funding Environment in New England, The Startup Coalition

Speaker, Management Carve-Out Plans in M&A Transactions, Boston Bar Association

Panelist, Venture Backed M&A: Special Considerations, American Bar Association

Guest lecturer at Tufts University

Guest lecturer at Babson’s MBA program

Panelist, Shattering the Bamboo Ceiling, The Business Coalition / Showa Boston Institute 

Speaker, Raising Money From Friends and Family - How to Do it Right, The Enterprise Center at Salem State University

VIDEOMary Beth Kerrigan discusses representations and warranties in M&A transactions.

VIDEOMary Beth Kerrigan describes post-closing indemnifications in M&A transactions. 

Mary Beth is a long-time Patriots fan (Brady is innocent) and Red Sox fan.  Outside the office, Mary Beth enjoys running, skiing and spending time with her family at locations such as the Cliffs of Moher in Ireland.

  • New England School of Law, J.D., magna cum laude
  • Tufts University, B.A., magna cum laude
  • Massachusetts Bar
Practice Areas
  • Corporate Attorney Mary Beth Kerrigan Rising Star
  • MA Rising Star
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