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Brian E. Tierney

PartnerBoston

Brian has extensive experience representing a broad range of companies throughout the corporate life-cycle, with a focus on New England’s life sciences and tech communities. This includes general corporate representation and counseling, private equity and venture capital financings, joint ventures, mergers and acquisitions (on both the buyer and seller side).  Brian also specializes in the areas of commercial and public finance, serving as legal adviser to institutional lenders, investment bankers, underwriters and borrowers in senior, mezzanine, subordinated debt and tax-exempt financings.

Brian currently serves as Co-Chair of the Corporate & Business group and the Vice Chair of the firm’s Sports & Entertainment Group, where he represents clients in connection with investments, acquisitions and dispositions of professional sports teams, theatrical productions and more.

Work Experience

  • Hinckley Allen
    • Co-Chair, Corporate & Business Group (2025-Present)
    • Vice Chair, Corporate & Business Group (2024-2025)
    • Partner (2016-Present)
    • Associate (2007-2015)
  • Ernst & Young LLP
    • Federal Tax Associate (Fall 2006)
  • United States District Court, District of Hawaii
    • Judicial Extern to the Honorable J. Michael Seabright (Spring 2006)
  • University of Hawaii, William S. Richardson School of Law
    • Research Assistant to Professor Randall G. Roth (Spring 2006)
    • Research Assistant to Professor Hazel G. Beh (Fall 2004, Spring 2005)
  • Rhode Island Department of Business Regulations, Securities Division
    • Rhode Island State Government Legal Intern (Summer 2004)

Honors & Awards

  • Best Lawyers in America® (2022-2026)
    • Banking and Finance Law
    • Commercial Finance Law
  • Boston Magazine, Top Lawyers (2025)
    • Sports Law

Professional Affiliations

  • American Bar Association
  • Boston Bar Association
  • Massachusetts Bar Association
  • Rhode Island Bar Association

Bar Memberships

  • United States District Court for the District of Massachusetts, 2008
  • Massachusetts, 2006
  • Rhode Island, 2006
Publication

Corporate & Business Transactions Report — 2025

We represent buyers, sellers, and investors — including middle-market and family-owned companies — on their most important business transactions. Our professionals bring a critical combination of experience, practicality, and a deep understanding…

Publication

Federal Reserve Expands Scope of Main Street Lending Program

On October 30, 2020, the Federal Reserve announced amendments to the Main Street Lending Program to offer more targeted support to smaller businesses that continue to be adversely impacted by the COVID-19…

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Firm News

Boston Magazine Recognizes 26 Hinckley Allen Attorneys in 2025 Top Lawyers List

Hinckley Allen is proud to announce that 26 of its attorneys have been named to Boston Magazine’s 2025 Top Lawyers list, representing a broad range of its practice groups. This year, six…

Firm News

Hinckley Allen Recognized for Excellence: 75% Attorneys Honored in The Best Lawyers in America® 2026

Hinckley Allen is proud to announce that 127 of its attorneys have been recognized in the 2026 edition of The Best Lawyers in America®, representing 75% of the firm’s legal team.

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Case Study

Hinckley Allen Secures Complex Financing Package for Construction of Medical Campus at Rock Row in Westbrook Maine

In a remarkable display of legal acumen, Hinckley Allen successfully closed a highly intricate financing transaction, marking an exciting moment for long-time client Waterstone Properties Group. The over $100 Million financing will…

Case Study

Hinckley Allen Represents DSM in Acquisition of Animal Nutrition Start-up

Hinckley Allen congratulates its client DSM on its acquisition of Midori Health, the Boston-based biotechnology start-up focused on animal nutrition and human health. We were proud to support the DSM legal and…

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