Companies and investors on the leading edge of their industries turn to Sullivan’s forward thinking attorneys for mergers and acquisitions and other sophisticated business transactions. Our M&A clients include blue-chip high tech companies at the larger end and lower-middle market players at the smaller end, engaging in public and private deals of all sizes and types.

Clients value our nimble, team-minded approach, our knack for creatively removing obstacles and our relentless passion for getting to closing. While we generally operate under intentionally “skinny” corporate teams, we are able to efficiently harness our full service firm's resources, such as tax, benefits, finance, real estate, capital markets, intellectual property, employment, environmental, bankruptcy and litigation.

Our Clients

We regularly help public and private companies, private equity investors and their portfolio companies, family-owned businesses, family offices and start-ups realize their vision for growth through transactions. Clients depend on our breadth and depth of experience, knowledge of the market and international reach in order to successfully execute on sophisticated domestic and cross-border transactions, including:

  • Mergers and acquisitions
  • Divestitures
  • Spin-offs
  • Leveraged buyouts
  • Co-investments and minority investments
  • Joint ventures
  • Restructurings
  • Recapitalizations
  • Strategic alliances

We help entities from all over the world penetrate the U.S. market, including businesses headquartered in Finland, France, Ireland, Italy and elsewhere in Europe, as well as Israel and spanning into Asia. 


  • U.S. News Best Lawyers “Best Law Firms” 2022: Mergers & Acquisitions Law, National and Boston Metropolitan
  • The Legal 500 US 2021: M&A/Corporate and Commercial: M&A-middle-market (sub-$500m)

Client collaboration is one of the chief hallmarks of our work.  Our teams are led by Sullivan's partners in close communication and coordination with our clients' in-house departments, ensuring successful transactions that are well-managed and aligned with our clients' objectives and risk profiles.

Delivering on Your Next: Case Studies

Steering a private company through unique complexities in a sale


The sole shareholder of our long-term corporate client decided the time was right to sell his business. He wanted to retain ownership of the real property and the plants where the business was operated.

Getting to Next

We advised our client as to all steps in a private-company sell-side M&A transaction, including engaging the most experienced investment bankers in the industry to market the company in an auction situation; selecting the best-qualified bidder to be the purchaser; working with the company’s accountants to develop the most advantageous sale structure; negotiating highly complex deal terms; and successfully closing the deal.


Our client achieved all of his many desired goals: liquidity; a clean sale of the business where he retained very limited indemnification obligations; a short transition services period; long-term leases of the plants; and retention by the purchaser of all the company’s employees. We also helped our client with an estate plan to effectuate his philanthropic goals.

The team was led by Carol Wolff, with various Sullivan partners handling non-corporate aspects: Chris Curtis on tax; Vic Baltera on  environmental; and Warren Heilbronner on real estate.

Forming a strategic, international partnership in the financial services sector


Money in Motion ­ a long-standing client and one of the co-founders of bKash, a leading mobile financial services provider in Bangladesh ­wanted help aligning its internal group and attracting outside, international investment. 

Getting to Next

Dealing with multiple, global shareholder interests, we helped our Boston-based client form a strategic partnership with Ant Financial, operator of Alipay, including negotiations in Singapore.


Thanks to its partnership, our client was able to promote financial inclusion for unbanked and under-banked communities in Bangladesh.

The team was led by Lew Segall, with partner Doug Stransky on international tax issues.

Representative Client Work

  • Represented Nano Dimension in its acquisition of Formatec Holdings B.V., a leading developer and manufacturer of additive manufacturing and 3D printing systems for ceramic and metal end-user parts
  • Represented Manulife Investment Management Timberland and Agriculture Inc. (f/k/a Hancock Natural Resource Group, Inc.) in its majority acquisition of David Del Curto SpA, a Chilean fruit production, packing and export company
  • Represented Simplecast in its acquisition by SiriusXM. Simplecast is a leading podcast management platform that enables podcasters to publish, manage, and measure their content
  • Represented Government Properties Income Trust, a real estate investment trust which primarily owns properties majority leased to government tenants and office properties in the metropolitan Washington, D.C. market area leased to government and private sector tenants, in its $1.4 billion acquisition of First Potomac Realty Trust, a self-administered, self-managed real estate investment trust focused on owning, operating, developing and redeveloping office and business park properties in the greater Washington, D.C. region
  • Represented Iron Mountain Incorporated, a storage and information management company, in a number of transactions, including its acquisition of Cornerstone Records Management; its $2 billion acquisition of Australia-based Recall Holdings; its disposition of assets in the United States and Canada required by its acquisition of Recall Holdings Limited; and its $380 million sale of its online backup and recovery, digital archiving and e-discovery business to Autonomy Corporation
  • Represented owners of the Camuto Group, the footwear and accessories organization, in its sale to ABG-DSW, a leading North American footwear and accessories retailer

  • Represented Senior Housing Properties Trust, a real estate investment trust that owns independent living and assisted living communities, continuing care retirement communities, nursing homes, wellness centers and medical office, clinic and biotech laboratory buildings located throughout the United States, in a $112.4 sale-leaseback transaction with Five Star Quality Care, Inc., a national senior living communities and services provider
  • Represented Senior Housing Properties Trust, a real estate investment trust that owns medical office and life science properties, senior living communities and wellness centers throughout the United States, in its acquisition of 37 senior living properties from CNL Lifestyles, Inc. for an aggregate purchase price of $762.6 million
  • Represented Masy BioServices, a preferred provider of cGMP Biostorage and pharma support services, in its acquisition by Alcami Corporation, a leading pharmaceutical and biotech contract development and manufacturing organization
  • Represented Admiral Metals Servicecenter Company, Inc., a leading distributor of metal products in the Northeastern United States, in its acquisition by Reliance Steel & Aluminum Co., a global diversified metal solutions provider
  • Represented Softrip, a leading provider of end-to-end business software to tour operators worldwide, in its sale to Footbridge Partners
  • Represented Halo2Cloud, LLC, a leading direct-to-consumer mobile accessories company with an extensive intellectual property portfolio and international operations, in its $43 million sale to ZAGG Inc. (NASDAQ:ZAGG), a global leader and innovator in accessories and technologies that empower mobile lifestyles
  • Represented Microtec s.r.l., the premier scanning company for the sawmilling and wood processing industries across Europe, in its acquisition of Lucidyne Technologies, Inc., a world-leading manufacturer of scanning technologies for the wood product industry
  • Represented Eden Rock Communications, developer of a proprietary multi-vendor, multi-technology, centralized self-organizing network, in its sale via merger to Nokia Solutions, a subsidiary of Nokia Corporation
  • Represented a Swedish environmental technology company in its acquisition of a provider of monitoring and filtration systems
  • Represented GRT Capital, an investment advisory firm providing active equity management, in its merger with Shepherd Kaplan Krochuk, a Boston-based investment advisory firm providing consulting and investment management services to institutional and private investors
  • Advised Pavilion Advisory Group, Inc., a wholly owned U.S. subsidiary of Pavilion Financial Corporation, a Canada-based institutional investment services firm, in its acquisition of Jeffrey Slocum & Associates, a Minnesota-based institutional investment advisory company
  • Represented Money in Motion, one of the co-founders of bKash, the leading mobile financial services provider of Bangladesh, in the formation of a strategic partnership with Ant Financial, operator of Alipay, to promote financial inclusion for the unbanked and underbanked communities in Bangladesh
  • Represented Wolfe Laboratories, Inc., a leading contract research organization (CRO) that provides integrated pharmaceutical development services for biotechnology and pharmaceutical companies, in the sale of 100% of its stock to Pace Analytical Services, LLC, a portfolio company of Aurora Capital, a west coast private equity firm
  • Represented Associates for International Research, Inc., a human resources consulting company, and its major shareholders in the sale of a majority interest to Relo Group, Inc., a Japanese provider of corporate relocation services
  • Represented Netwatch Systems, an Irish security services company, in its initial acquisition of a US company
  • Represented The Ready Group in its sale to DirectAlert LLC, a portfolio company of HGGC, a private equity firm
  • Represented ClickSoftware Technologies Limited, a provider of automated workforce management and optimization solutions for the service industry, in its acquisition of Xora, Inc., a global leader in mobile workforce management
  • Represented Locus Energy, one of the largest data management companies in the renewable energy industry, in its acquisition by Genscape, a global leader in energy monitoring data and intelligence
  • Represented Diversified Holding Co., a leading international media and events company, in the sale of two television stations and networks throughout the United States
  • Represented Onet S.A., a French conglomerate engaged in commercial cleaning, building security and other commercial services, in its acquisition of EPM Holding Company, a Massachusetts corporation engaged in the nuclear power/fire safety business
  • Represented Buffet Group S.A., a French company that leads in the manufacture and sale of woodwind instruments, in its acquisition of Verne Q. Powell Flutes, a Massachusetts corporation leading in the manufacture and sale of flutes and piccolos
  • Represented The Paciello Group, a company providing software to the visually impaired and those with other disabilities, in its acquisition by VFO, a portfolio company of Vector Capital and the world's leading assistive technology provider for the visually impaired
  • Represented Alantra (f/k/a as N+1 Group), a publicly traded investment bank headquartered in Spain, in its acquisition of C.W. Downer & Co., a Boston-based, independent, global investment bank; this transaction won "Cross-Border Deal of the Year" (Over $25 million-$50 million) from The M&A Advisor at the 15th Annual M&A Advisor Awards Gala
  • Represented Ocean Harbor Insurance Group, an insurance holding company, in its $134 million sale of the Zephyr Insurance group of companies, a Hawaii-based specialty insurer, to Heritage Insurance Holdings, Inc., of Florida
  • Advised InSite Wireless Group, one of the largest privately owned tower and wireless infrastructure companies in the United States, in transactions related to the $280 million sale of a 42.5% equity interest in the company to Macquarie Infrastructure Partners III, including structuring the investment for REIT compliance, as well as amending a credit facility
  • Represented Challengeme Esports GmbH (CME), a provider of one of the most sophisticated eSport matchmaking and tournament platforms, in its acquisition of US-based platform provider, eSports Hero Inc. Also advised CME in connection with a strategic investment in the company by eSports Mogul (ESM), an ASX-listed eSports media company, as well as a multi-year licensing agreement with ESM for the Asia-Pacific region
  • Represented GreenBytes, Inc., a Rhode Island based provider of data compression and management technology with domain expertise in the areas of deduplication, replication, and virtualization, in its sale to Oracle Corporation
  • Represented Late July Snacks LLC, a leader in organic and non-GMO snacks, in the sale of 80% of its equity interests to Snyder’s-Lance, Inc., a publicly traded snack foods company
  • Represented York Capital Management, an employee-owned hedge fund sponsor and its subsidiary, Entropy Investment Management, a specialty energy investment and management company, in the $50 million sale of two anaerobic digester facilities

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