Erin Klein


I deliver practical, personalized solutions to tackle the unique business and legal challenges facing my clients.

Erin Klein advises startups through Fortune 500 companies on strategic opportunities, commercial transactions, M&A, and general corporate matters. Through personalized service, Erin tailors solutions to meet her clients’ specific needs—even on the most complex of transactions.

Erin assists public and privately held companies on a wide range of transactional matters, with a particular emphasis on complex strategic opportunities and M&A. She also assists clients with general corporate matters such as corporate formation, financings, commercial transactions and corporate governance. In addition, Erin has an active pro bono practice where she advises nonprofits on formation, IRS and state law requirements, and ongoing day-to-day matters.

Erin’s clients benefit from her unique perspective and prior in-house experience. Erin was corporate counsel for a medical device company, advising on corporate and compliance matters, and supporting sales and clinical teams. As a result, she has a deep understanding for the business pressures and goals in-house teams face.


  • Drew University, B.A., magna cum laude, 1997

Bar and Court Admissions

  • Massachusetts


  • ezCater, an online catering service, in multiple financing rounds, including:
    • $100 million late-stage Series D-2 funding round led by SoftBank Vision Fund 2 with participation from Quadrille Capital, GIC, ICONIQ Growth, Insight Partners, Invus and others
    • $150 million Series D-1 financing, co-led by Lightspeed Venture Partners and GIC, with participation from Light Street Capital and existing investors Wellington Management Company LLP, ICONIQ Capital, Insight Partners, Quadrille Capital, and others
    • $100 million Series D financing led by Wellington Management Company LLP, with participation from existing investors ICONIQ Capital, Insight Venture Partners and others 
  • Genuity Science, a life science technology company that provides world-leading genomics and multi-omic analytics, in its sale to HiberCell 
  • SunSetter Products Limited Partnership in its sale to Springs Window Fashions

  • Previously served as Corporate Counsel at a medical device company, advising on corporate and compliance matters, and supporting sales and clinical teams.
  • Held a clerkship with the Honorable Martha B. Sosman, Massachusetts Supreme Judicial Court.

Honors & Involvement

  • IFLR1000, Notable Practitioner (2019-2021) 
  • Book Review Editor, Boston College Journal of Law & Social Justice (f/k/a Boston College Third World Law Journal)
  • Boston College Law School, Order of the Coif
  • Boston Bar Association
  • Women's Bar Association