Joel S. Green


  • Deputy Managing Partner
  • Co-Chair, Congressional Investigations Practice

Joel Green is deputy managing partner of WilmerHale. In that role he assists the managing partner, Anjan Sahni, in executing the firm’s overall strategic vision. Mr. Green is also a partner in WilmerHale’s Securities, Litigation, and Regulatory Departments, Co-Chair of the Congressional Investigations Practice and a member of the Firm’s Management Committee.

He has more than two decades of experience helping clients successfully navigate high-stakes and challenging matters in the United States and abroad. Public companies, financial institutions, technology firms, accounting firms and individuals routinely turn to Mr. Green for representation in a broad range of regulatory investigations, enforcement, litigation and other strategic matters. He has substantial experience representing individuals and organizations in parallel criminal and civil investigations and proceedings, typically involving the SEC, DOJ and state regulators. Mr. Green has also led high-stakes and sensitive internal investigations in the United States and around the world, including Europe, the Middle East and Asia, typically involving allegations of fraud, financial reporting or accounting improprieties, data abuse and Foreign Corrupt Practices Act violations.

As co-chair of the Congressional Investigations practice, Mr. Green serves as counselor and strategic advisor to prominent companies and institutions, their senior executives, and other individuals in high-profile congressional investigations and hearings, including several recent prominent CEO-level hearings in both chambers of Congress.

Mr. Green has an active pro bono practice. He has represented a Washington DC–based nonprofit mental healthcare provider in various litigation and other matters, including filing suit to recover millions of dollars the nonprofit lost through a Ponzi scheme. He also recently obtained the release of three individuals challenging their life-term prison sentences on Constitutional grounds. 


  • Congressional Inquiries

    • Routinely represents one of the largest tech companies in the world in congressional inquiries and preparing senior executives to testify before various House and Senate Committees on issues including artificial intelligence, content moderation, CDA Section 230, election integrity, copyright, and cryptocurrency. 
    • Representing a Class I railroad in various congressional inquiries and other proceedings following a train derailment, including preparing the CEO for Congressional and state-level testimony.
    • Representing former senior Intelligence Community officials in multiple House investigations related to foreign election interference and COVID, among other issues.
    • Representing a global technology company and major financial institution in connection with congressional inquiries regarding business practices in China.
    • Counsel for foreign and domestic financial services firms in various inquiries by the Senate Banking and House Financial Services Committees.
    • Represented individuals in parallel congressional, GAO, and Inspector General investigations regarding alleged impropriety at an executive branch agency.
    • Represented a major insurance company in a congressional investigation related to cybersecurity issues.
    • Represented a global financial institution in connection with congressional investigations relating to offshore banking by US taxpayers and cross-border business practices.
    • Represented the former CEO of a major mortgage company in parallel SEC and congressional investigation in the wake of the housing crisis, including preparing the CEO to testify before the House Financial Services Committee. 
  • Government Investigations & Enforcement

    • Representing a major pharmaceutical company in parallel DOJ and SEC investigations regarding alleged fraud and contracting issues.
    • Represented the largest provider of investment and recordkeeping services to educational institutions and charities in the United States, in investigations by the SEC, CFTC and New York Attorney General regarding sales practice issues.
    • Represented a major international financial institution in resolving a long-running investigation into its FX practices; the matter concluded with a publicly announced declination (with disgorgement). 
    • Represented an audit firm in India in connection with US investigations and litigation following revelation of largest fraud in Indian history. Advised the client with respect to parallel Indian criminal, civil and regulatory proceedings.
    • Represented two formerly publicly traded sister companies that were leading players in the renewable energy sector, and several individual board members in parallel DOJ and SEC investigations arising from the liquidity crisis and eventual bankruptcy of their former corporate sponsor. 
    • Represented professional baseball players and agents in connection with various inquiries, investigations, and litigation related to performance enhancing drugs.
    • Represented a Big Four accounting firm in various enforcement proceedings and litigation, including parallel SEC, DOJ, PCAOB, and New York Attorney General investigations related to audit work for one of the world’s largest insurance companies.
    • Represented numerous individuals and organizations in leading energy companies in connection with various Inspectors General inquiries.
    • Represented a major global oil and gas company in connection with parallel SEC and DOJ criminal investigations and in other executive branch inquiries arising from an accident in the Gulf of Mexico.
  • Internal Investigations

    • Represented an American multinational company in an internal investigation into questionable accounting and sales practices at one of its international subsidiaries in Asia.
    • Regularly represents one of the largest tech companies in the world, including in a variety of internal investigations and reviews involving content, policy, and related issues.  
    • Regularly represents major foreign and domestic banks in internal investigations involving allegations of fraud, misconduct, and other impropriety.
    • Represented an Israeli AI firm in a first-of-its-kind audit regarding ethical uses of facial recognition technology.
  • Litigation

    • Represented a major international financial institution in multiple arbitrations regarding securities and employment issues, including one matter arising from inappropriate FX conduct connected to a major international merger.
    • Guided two sister renewable energy companies through more than 20 securities actions brought in the wake of the bankruptcy of their former corporate sponsor, helping to obtain numerous dismissals and favorable settlements over nearly four years of litigation.


Insights & News


  • Education

    • JD, The George Washington University Law School, 2003

      with High Honors Articles Editor, The George Washington Law Review
    • BA, The George Washington University, 2000

      magna cum laude Phi Beta Kappa
  • Admissions

    • District of Columbia

    • New York



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