Sullivan
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Message from our Managing Partner, David Nagle

Having spent my entire career at Sullivan & Worcester, one might question me when I say there is no better place to both work and grow as a lawyer, as well for clients to receive attention and responsiveness. What makes Sullivan special, hands-down, is the people who walk through our halls. From legal administrative assistants, to paralegals, to professional and business staff, to associates and partners, for over 80 years this place has attracted professionals who want to be the best they can be for themselves, for each other and for our clients. 

Our clients can expect unparalleled loyalty and service, and can have confidence that they are working with lawyers that not only care about the matter that is in front of them, but about our clients’ businesses, their people and their future. While our roots are based in Boston, we have thoughtfully built a global practice with strategic offices in New York, Washington, DC, London and Tel Aviv. Our clients span from life sciences companies exploring and creating breakthrough technologies and treatments to major companies that have been with us for decades. 

We have successfully navigated the ups and downs of cyclical economies, and have always remained true to who we are as a firm. We're so proud of the Sullivan that our people and clients have created.

Why Sullivan?

Clients choose Sullivan because our lawyers are hands-on, business savvy and straightforward, with an intense commitment to clients’ interests. Lateral attorneys from top law firms come to Sullivan for our entrepreneurial spirit and creative style.

We combine the breadth of experience and sophistication you would expect from a prominent, top-tier law firm with an unusually creative and flexible approach.

Our clients benefit from:

  • Strategic locations in Boston, London, New York, Tel Aviv and Washington, D.C. and international alliances in Europe, Asia and the Middle East
  • A broad range of commercial legal services
  • Experience with domestic and international clients ranging from emerging businesses to Fortune 500 companies and leading financial institutions.
  • One of the only U.S. law firms with a major presence in Israel

Customized solutions that work for your businessWe dig deep to understand our clients and their industries in order to deliver solutions and value. Our lawyers work together in small teams emphasizing close partner-client contact and collaboration.

Exceptional Talent. Many leading lawyers have moved to Sullivan for our entrepreneurial, creative style. Our individual lawyers and practice groups have strong national reputations, including our REIT, tax and mutual fund practices that earn top rankings. Our lawyers are also ranked annually in publications, such as Chambers USA, Chambers Global, Chambers UK, The Legal 500 United States, The Legal 500 UK, Super Lawyers, Best Lawyers in America, and Best Lawyers "Best Law Firms."

Collegiality. We pool the talent of lawyers from across the firm's practices to ensure you get the right team for your job.

85

Years since we first established in Boston

16%

By equity market capitalization, the amount of the U.S. public REIT market we represent

1,877

The number of pro bono hours our attorneys represented in 2025

44

Number of Sullivan lawyers named to the 2026 Best Lawyers list

$26B

Gross proceeds raised by companies and investment banks that Sullivan has represented, in over 435 deals, since the beginning of 2020

50+

Practice areas across five global offices

Recognition

Sullivan & Worcester Ranked in Chambers USA 2025 Edition

The firm and its practice groups and attorneys have been highly ranked by Chambers USA in its 2025 rankings of the foremost law firms and attorneys in the country, with seven practice areas and 17 attorneys achieving recognition. 

Sullivan & Worcester Achieves National and Regional Rankings in 2026 Best Law Firms® Listings

The firm has received recognition in the 2026 Best Lawyers Best Law Firms® rankings with 12 practice areas ranked nationally and 19 ranked regionally. Best Law Firms 2026 recognizes only the top 3.8 percent of law firms nationwide. 

Intellectual Property Group Ranked in WTR 1000

The firm's Intellectual Property Group has been ranked in the 2025 edition of the World Trademark Review 1000: The World’s Leading Trademark Professionals (WTR 1000)receiving a Bronze Band Ranking for prosecution and strategy. Additionally, partners Kim Herman and Michael Palmisciano received a Gold Band Ranking in Massachusetts and a Bronze Band Ranking in New York, respectively, for prosecution and strategy.

Trade & Export Finance Receives Tier 1 Ranking

The firm's trade & export finance practice has received a Tier 1 ranking in the 2026 edition of The Legal 500 UK, the practice’s 12th top tier ranking in a row from this leading independent annual legal directory. In addition, partners received individual recognition in the Hall of Fame, Leading Partner, Next Generation Partner and key member categories.

Sullivan & Worcester Recognized as a Leading Firm in ITR's World Tax Guide 2026

International Tax Review’s World Tax Guide has recognized the firm in the 2026 edition of its guide to the world’s best general corporate tax firms. Sullivan has been ranked as a leading general corporate tax firm in the United States, as well as in Massachusetts and the District of Columbia. Eight attorneys received individual recognition spanning the Highly Regarded and Notable Practitioner categories.

Sullivan & Worcester Ranked in the Legal 500 United States 2025 Edition

The firm's practice groups and attorneys have been ranked and recommended in The Legal 500 United States 2025, with 17 practice areas ranked and 38 lawyers recognized. Notable individual recognition included partners singled out as Leading Partners and Next Generation Partners.

Sullivan & Worcester Recognized by Chambers FinTech 2026

The firm is nationally recognized for FinTech Legal and FinTech Legal: Blockchain & Cryptocurrencies in the 2026 Chambers FinTech Guide, with Joel Telpner receiving individually honors in the FinTech Legal: Blockchain & Cryptocurrencies category. 

Mansfield 7.0 Certification

Sullivan is committed to expanding diversity in law firm leadership and has earned Mansfield Certification status for Mansfield Rule 7.0 from Diversity Lab, an organization working to support law firms’ efforts to increase leadership diversity. Diversity Lab works with law firm participants to measure the outcomes and iterate the requirements to push boundaries every year.