Mick Bain


Co-Chair, Corporate Practice Group

Bain, Mick

Mick Bain advises entrepreneurs, startups and high growth companies throughout their lifecycles. In addition, he represents venture capital firms, growth equity firms and strategic investors when making their portfolio investments. Recognized as a trusted advisor, he has helped hundreds of companies raise billions of dollars in seed, venture and strategic financing. His clients have spanned a vast array of technology and life sciences industries, including big data, clean technology, cybersecurity, digital advertising, digital media, e-commerce, FinTech, mobile and telecommunications, software, biotech and medical devices.

With more than two decades of experience, Mr. Bain advises his company clients on formation and governance issues, equity compensation matters, securities laws, international expansion and many other areas that are key to the growth of technology and life sciences companies. He also represents clients in complex corporate transactions including capital raising, M&A transactions, joint ventures, initial public offerings and other capital markets transactions. 

In addition, he has worked extensively with many venture capital and growth equity and strategic investors. These clients include North Bridge Venture Partners, Matrix Partners, MPM Capital and Spark Capital.

Learn more about Mr. Bain's practice and how he can support your startup on

Recent Highlights

Mr. Bain represents entrepreneurs and private companies in various stages of development in addition to his representation of venture firms and other investors. 

Representative Financing Transactions

  • 1366 Technologies, Inc. raising over $55.5 million in multiple early-stage financings
  • Blue Danube Labs, Inc. raising over $25.7 million in multiple venture and strategic financings
  • Casa Systems, Inc. raising nearly $110 million in multiple strategic financings
  • Constellation Pharmaceuticals, Inc. raising $55 million in a late stage financing
  • Kala Pharmaceuticals, Inc. raising $68 million in a Series C financing
  • Lattice Engines, Inc. raising over $63 million in multiple venture and strategic financings
  • Reflexis Systems, Inc. raising nearly $43 million in multiple venture and strategic financings

Representative M&A Transactions

  • Aegis Lightwave, Inc. acquisition by II-VI Incorporated
  • Ahura Scientific, Inc. acquisition by Thermo Fisher Scientific Inc.
  • airwide solutions inc. acquisition by Maviner
  • Bzzagent, Inc. acquisition by dunnhumby USA, Inc.
  • Chosen Security, Inc. acquisition by PGP Corporation
  • CMGI, multiple M&A, joint venture and financing transactions
  • Newforma, Inc. asset purchase of  Smart Use Software, Inc.
  • Nexage, Inc. acquisition by Millennial Media, Inc.
  • PerkinElmer, multiple buy-side M&A transactions
  • Rhythmia Medical, Inc. acquisition by Boston Scientific Corporation
  • Sanbolic acquisition by Citrix
  • Thermo Fisher Scientific, Inc., multiple buy-side and sell-side M&A transactions

Past Experience

Mr. Bain was previously associate general counsel of CMGI, Inc. where he advised CMGI and its subsidiaries with respect to a variety of domestic and international transactions, including venture capital investments, mergers and acquisitions, and international joint ventures in the United States, Asia, Europe and South America.

Honors & Awards

  • Recognized as a "well-respected force within the venture capital market" and is "highly regarded by peers" for his private equity: venture capital investment practice in the 2011-2016 editions of Chambers USA: America's Leading Lawyers for Business
  • Named one of the Best Lawyers in America in the area of venture capital law (2009-2017) and corporate law (2010-2017)
  • Recommended in the 2016 edition of The Legal 500 United States for his M&A/Corporate and Commercial: Middle-Market and as well as Venture Capital and Emerging Companies practices
  • Named a "New England Super Lawyer" (formerly "Massachusetts Super Lawyer") from 2009-2015
  • Named a "Massachusetts Super Lawyer Rising Star" in securities and venture finance in the May 2005 edition of Boston Magazine

Publications & News


April 5, 2017

WilmerHale Counsels Reflexis to Accelerate Growth With Investment From Great Hill Partners

Reflexis, the leader in retail real-time execution and workforce management solutions, announced that it has received a minority equity investment from Great Hill Partners.

January 12, 2017

SyncOnSet Technologies Secures $1.5M Series A Financing

SyncOnSet was born out of a simple idea: replace the three-ring production binder with professional software designed for how production teams work.

October 3, 2016

Should Your Startup Take the Public Benefit or B Corp Route?

An article contributed to TechCrunch by Mick Bain that discusses whether or not to establish your company as a B Corp—a for-profit company certified by the nonprofit B Lab to meet rigorous standards of social and environmental performance, accountability and transparency.

August 15, 2016

WilmerHale Lawyers Named Among the 2017 Best Lawyers in America®, Six Recognized as Lawyers of the Year

Best Lawyers in America®—a respected peer-review publication in the legal industry—recognizes 101 WilmerHale lawyers and names six partners as Lawyers of the Year in its 23rd edition.

August 12, 2016

WilmerHale Reps Boston Insurance Startup Quilt in $3.25M Seed Funding

Quilt, a venture offering self-service online insurance products, announced it raised $3.25 million in seed funding.

July 20, 2016

WilmerHale Advises Aushon BioSystems in $6.14M Series C Financing

Aushon BioSystems, a global provider of protein biomarker measurement and analysis products and services via an innovative, cost-effective multiplex immunoassay platform, announced that it held the initial closing of a $6.14 million Series C Financing.

June 22, 2016

The Legal 500 United States 2016 Recognizes 111 WilmerHale Lawyers Across 30 Practice Areas

The guide's rankings are based on a series of criteria, including client feedback, interviews with private practice lawyers, and its own research.

June 22, 2016

WilmerHale Counsels Zaius in $8M Series B Funding Led by Underscore.VC

Zaius, the only CRM built for the scale and velocity of business-to-consumer marketers, announced it has closed an $8 million investment led by _Underscore.VC, with participation from Leaders Fund and existing investor Matrix Partners.

May 27, 2016

WilmerHale Lawyers and Practices Recognized in 2016 Edition of Chambers USA

Chambers USA: America's Leading Lawyers for Business announced its final rankings for the 2016 edition, with WilmerHale ranking among the nation's best in 47 practice area categories. Chambers also ranked 82 WilmerHale lawyers as leaders in their respective fields.

May 16, 2016

WilmerHale Counsels Accion Systems in Raising $7.5 Million in Series A Funding

WilmerHale represented Accion Systems Inc., a space technology startup led by MIT graduates, in raising $7.5 million in Series A funding.

Professional Activities

Mr. Bain is a frequent guest lecturer on entrepreneurship and corporate finance at MIT Sloan, Harvard Business School, Boston University and Babson College.


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JD, magna cum laude, Boston University School of Law

BA, magna cum laude, Providence College, Pi Sigma Alpha

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