Goodwin Partner Daniel Isaacs, from Boston, practices in technology, life sciences, new company formation, venture capital, mergers and acquisitions.

Daniel M. Isaacs

Daniel M. Isaacs
+1 617 570 1326

Daniel Isaacs is a partner in Goodwin’s Business Law department. His practice focuses on advising emerging companies and investors throughout the corporate life cycle, including pre-incorporation planning and formation, venture capital and growth equity financings, mergers and acquisitions, public offerings, and general corporate representation and counseling. Daniel represents clients in a variety of technology and life sciences industries, including digital health and healthcare, alternative energy and other clean technologies, climate tech, artificial intelligence and machine learning, cybersecurity, Fintech, new media, e-commerce, software, hardware, biotech, medical devices and diagnostics, and pharmaceuticals.

Daniel is a member of Goodwin’s Hiring Committee.


Daniel's recent client representations include:

Company-Side Financings:

  • Aleta Biotherapeutics, an immuno-oncology company
  • Algorand, a blockchain and cryptocurrency company
  • Assured, a longevity risk management company 
  • BitSight Technologies, a risk management and cybersecurity company
  • Bolstr, Inc., an online lending platform
  • ClimaCell, a microweather platform
  • Fincura, an automated spreading, covenant monitoring, and borrower management platform
  • Fuze, a cloud-based unified communications provider
  • Humatics, a microlocation technology and spatial intelligence platform
  • Imagen Technologies, a medical technology company
  • Kyn Therapeutics, an immunometabolism therapies company
  • Libre Wireless Technologies, an embedded WiFi/wireless technology and software solutions provider
  • Mautic, an open-source marketing automation software company
  • Mavrck, an all-in-one influencer marketing platform
  • Pellion Technologies, an innovator of next-generation battery technology
  • PureStake, a blockchain infrastructure for proof-of-stake networks
  • TCR2 Therapeutics, a biotech company developing a new generation of T cell therapies for patients suffering from cancer

Investor-Side Financings:

  • Amadeus Capital Partners, Atlas Venture, Bpifrance, Eni Next, General Catalyst Partners, Glasswing Ventures, Lightspeed Venture Partners, OMERS Ventures, OpenView Venture Partners, and Romulus Capital, in numerous investments in portfolio companies

Sell-Side Representation:

  • Agilux Laboratories, a contract research organization and Ampersand Capital Partners’ portfolio company, in its sale to Charles River Laboratories International
  • Albany Molecular Research Inc., a contract research and manufacturing organization, in its sale to The Carlyle Group and GTCR
  •, an ID authentication platform, in its sale to Facebook
  • Fincura, in its sale to Numerated
  • Iconics, a global automation software provider, in its sale to Mitsubishi Electric Corporation
  • Litéra Corporation, a document lifecycle management company, in its sale to K1
  • PowerAdvocate, an energy intelligence company, in its sale to Verisk
  • Seniorlink, a tech-enabled health services company, in its sale to Thomas H. Lee Partners

Buy-Side Representation:

  • Ampersand Capital Partners and 1315 Capital in their acquisition of Genoptix, a provider of comprehensive testing solutions in hematology and solid tumor molecular profiling, from Novartis Pharmaceuticals Corporation
  • BitSight, in its acquisition of VisibleRisk, a cybersecurity risk assessment company
  • BitSight in its acquisition of ThirdPartyTrust, the developer of a comprehensive third-party risk management tool
  • DaySmart, a provider of point-of-sale software, in its acquisition of PupKeep, a pet care software company
  • Fuze, in its acquisition of Parlai Technologies, a virtual assistant for customer-facing professionals
  • Imprivata, a healthcare IT security company and portfolio company of Thoma Bravo, in its acquisition of Caradigm, a healthcare analytics and management company and subsidiary of General Electric Company
  • Imprivata, in its acquisition of GroundControl, a mobile device software platform
  • Mavrck, in its combination with Later, a leading social media marketing and commerce platform
  • Sansoro Health, a healthcare information technology company, in its acquisition of Datica, Inc., a cloud-based healthcare data platform

  • TCR2 Therapeutics, in connection with its initial public offering 

  • Negotiated numerous collaboration agreements with medical institutions on behalf of health tech and life science companies
  • Advised Quartet Medicine, a biotech company developing novel treatments for chronic pain and inflammation, in a cutting-edge build-to-buy transaction with Merck
  • Counseled investors in the corporate restructuring of a global clinical-stage biopharmaceutical company
  • Represented numerous cryptocurrency and digital asset companies and investors in connection with the launch and growth of blockchain-based platforms, node transaction partnerships, secondary node transactions, and digital asset sales and offerings, including AlgorandC3 ProtocolChainlinkJambbPureStakeBenchmark Capital, Borderless Relay, DavidsonKempner, Franklin Templeton, Glasswing Ventures, GoldenTree, and Lightspeed Venture Partners

  • Accion, the largest nationwide nonprofit lending network in the United States
  • Building Markets, a non-profit organization that champions local entrepreneurs in developing countries
  • GLBTQ Legal Advocates & Defenders (GLAD), in connection with preparing a Supreme Court amicus brief in support of transgender student rights.
  • Neighborhood Business Initiative, a program to bring business and legal services to entrepreneurs and small-business owners who are members of underserved communities, or whose businesses service underserved neighborhoods
  • Project Citizenship, a nonprofit agency providing legal services to Massachusetts immigrants
  • Small Business Strong, a Boston Chamber of Commerce initiative to provide pro bono legal and business advice to small businesses
  • Led numerous workshops and presentations on corporate governance, entity formation, raising capital, and equity and debt financings with Lawyers for Civil RightsBizGrowBoston Public Library: Kirstein Business LibraryCommonwealth Kitchen, Haley House, and Jewish Vocational Services

Professional Activities

Daniel is a member of the Boston Bar Association.

Professional Experience

Prior to joining Goodwin, Daniel was an associate in the New York office of Sullivan & Cromwell and served as a law clerk to the Honorable Pierre N. Leval of the U.S. Court of Appeals for the Second Circuit and the Honorable Robert H. Cleland of the U.S. District Court for the Eastern District of Michigan.

During law school, Daniel served as a judicial intern to the Honorable Jack B. Jacobs on the Delaware Supreme Court.




Yale Law School


University of Pennsylvania


U.S. Court of Appeals for the Second Circuit, Honorable Pierre N. Leval

U.S. District Court for the Eastern District of Michigan, Honorable Robert H. Cleland



  • Massachusetts
  • New York


  • U.S. District Court for the Southern District of New York
  • U.S. District Court for the Eastern District of New York
  • U.S. District Court for the Eastern District of Michigan

Recognition & Awards

Daniel was recognized as a 2022 Up & Coming Lawyer by Massachusetts Lawyers Weekly.

Daniel received the 2021 Robert B. Fraser Pro Bono Award, which is given annually by Goodwin to one associate and one partner that have made significant contributions to the firm’s pro bono efforts.

While attending law school, Daniel was a senior editor for the Yale Law Journal and an editor-in-chief for the Yale Journal of Health Policy, Law and Ethics. He also served as Student Director of the San Francisco Affirmative Litigation Project (SFALP) and the President of the American Constitution Society (ACS).

Additionally, while at Yale Law School, Daniel was awarded the William K.S. Wang Prize for superior performance in corporate law.