Chris Griner is widely recognized as a leader in the field of national security/CFIUS and played a key role in the development of the Foreign Ownership, Control or Influence (“FOCI”) mitigation arrangements used by the U.S. government today. He represents foreign and domestic clients regarding international transactions involving the Committee on Foreign Investment in the United States (“CFIUS”) and other national security approval issues. Mr. Griner represents clients from all over the world in hundreds of transactions notified to CFIUS: Australia, Austria, Belarus, Canada, China, Denmark, France, Germany, Hong Kong, India, Israel, Italy, Japan, Luxembourg, the Netherlands, Saudi Arabia, Singapore, Spain, Sweden, Switzerland, the UAE, the UK and Ukraine. These transactions, which required CFIUS approval, covered diverse industries such as aerospace, automotive, cybersecurity, defense, electronics, energy, engineering and construction, identity authentication, information technology, intelligence, medical diagnostics, microelectronics, mining, telecommunications and satellites, space, transportation and shipping, and range in value from less than a million to multiple billions.

Mr. Griner counsels clients on proposed acquisitions and mitigation arrangements for foreign-owned defense and national security contractors, which can help avoid CFIUS review or obtain CFIUS approval. He has represented numerous foreign and domestic companies in corporate reorganizations, acquisitions and joint ventures that impact national security or that otherwise involve sensitive technologies or classified activities. Mr. Griner guides companies through all phases of the CFIUS process, from assessing potential areas of national security concern and strategic planning of the deal to preparing CFIUS filings and negotiating CFIUS mitigation and implementation.

Mr. Griner is internationally acclaimed for his contributions to the field of national security, having been awarded the highest ranking in Chambers Global, as well as receiving many other accolades. He has been invited by the U.S., British and Italian governments to address CFIUS and other regulatory aspects of foreign direct investment (“FDI”) in the U.S. and is often cited in prominent publications, including The Financial Times, The Washington Post, The Deal, China Legal Review and American Law Daily on CFIUS matters.  

Mr. Griner is the Chair of the National Security/CFIUS/Compliance Practice Group and Co-Managing Partner of Stroock’s Washington, DC office. Prior to joining Stroock, Mr. Griner had served as Chair of the CFIUS practice, Managing Partner and Executive Committee Member at a major international law firm and, prior to that, served as an attorney advisor in the Office of the General Counsel of the Department of Defense and is a Lieutenant Colonel, USAF, Retired.


  • Representation of German multi-national corporation before CFIUS and the Directorate of Defense Trade Controls in connection with the German corporation’s $5 billion acquisition by a Chinese corporation, the largest acquisition of a German company by a Chinese investor, and the first Chinese corporate acquisition of a publicly traded German company.
  • Exon-Florio reviews before CFIUS on hundreds of transactions ranging in value from less than $1 million to $38 billion.
  • FOCI mitigation arrangements in compliance with national industrial security regulations.
  • Export control compliance matters before the Department of State and the Department of Commerce.
  • Representation of a major Italian industrial group operating globally in aerospace, defense and security sectors; advice and counsel concerning CFIUS and U.S. national security regulatory approvals for acquisitions.
  • Representation of the world’s largest supplier of commercial airplane assemblies and components; advice and counsel on national security issues related to $1.65 billion initial public offering and subsequent transactions.
  • Representation of major British defense company in numerous acquisitions of U.S. national security contractors, including a $1.8 billion acquisition.
  • Representation of one of the world’s leading aerospace and defense electronics companies; advice and counsel in CFIUS and national security issues related to strategic Foreign Direct Investment (“FDI”) acquisitions in the United States.
  • Representation of major Italian industrial group in the $5.2 billion acquisition of a major U.S. defense contractor, requiring CFIUS approval.
  • Representation of a major U.K. electronics firm before CFIUS in its acquisition of several U.S. defense businesses. 


Mr. Griner has long been named a leading CFIUS lawyer by both Chambers USA: America's Leading Lawyers for Business and Chambers Global: The World's Leading Lawyers for Business, for his "depth of experience and great range of knowledge." Ranked Band 1 in the category of Nationwide: International Trade, Chambers USA names Mr. Griner as a "CFIUS expert" and quotes his clients as saying he is "the guru in this area of law." He has also been named a "Star of the Bar" by Washingtonian magazine and a top rated lawyer by Super Lawyers for his work in national security.


  • Member, Atlantic Council
  • Director, Task Force on Foreign Investment, Trade Policy and Sectoral Review, Antitrust Section, American Bar Association
  • Director, World Affairs Counsel
    • Recipient, Founders Award, 2015 
  • Member, The District of Columbia Bar Association


  • Keynote Speaker, "Recent and Emerging Developments Impacting FOCI Risks," ACI's National Forum on FOCI, Washington, DC, December 6, 2017
  • Speaker, "Panel Discussion on the Current State of CFIUS," Elevation, New York, NY, September 14, 2017
  • Panelist, "New Global Industrial Partnerships," ComDef 2017: Realigning Priorities in an Uncertain Era, Washington, DC, September 6, 2017
  • Speaker, “Sharpening Outside Directors’ & Proxy Holders’ Roles,” Defense Security Service Foreign Ownership, Control or Influence Conference, U.S. Patent & Trade Office, Alexandria, VA, July 21, 2017
  • Presenter, "Defense Security Service Industry Roundtable," Quantico, VA, June 23, 2017
  • Moderator, "Foreign Investment and National Security in the Age of Trump," Stroock Government Relations Leadership Forum Series, New York, NY, June 15, 2017
  • Speaker, "U. S. Regulatory Landscape," U.S. Embassy Brussels, Brussels, Belgium, October 20, 2016
  • Speaker, "U.S. Regulatory Landscape," U.S. Chamber of Commerce, Milan, Italy, June 15, 2016
  • Panelist, "North America-Europe Industrial Partnerships: Landscape | M&A," ComDef 2016: Developing Enduring Partnerships, Villepinte, France, June 14-15, 2016
  • Speaker, "U.S. Regulatory Landscape," GICAT, Paris, France, June 13, 2016
  • Speaker, "The Annual Aerospace & Defense Acquisitions Roundtable," Washington, DC, April 19, 2016
  • Speaker, "CFIUS Annual Report," Atlantic Council Forum on The Regulation of M&A Among U.S. Defense Companies, Washington, DC, March 7, 2016
  • Speaker, Special Briefing for Embassy of the United Kingdom, Washington, DC, February 26, 2016
  • Speaker, Aerospace States Association and Department of Commerce's National Aerospace Foreign Direct Investment (FDI) Expo, Los Angeles, CA, October 26-28, 2015 
  • Speaker, U.S. Legal Implications of Foreign Direct Investment for Chinese CEO's, Washington, DC, September 23, 2015
  • Speaker, Investing in the US National Security Arena/FDI, U.S. Consulate, Milan, Italy, June 24, 2015
  • Panelist, Next Generation Dialogue on Industry and Defense: Globalization versus the Culture of National Security, Washington, DC, April 30, 2015
  • Panelist, “National Security Regulatory Requirements Facing Foreign Companies in the United States,” Opportunities for UK Technology Companies in the US Defense Market, UK Embassy, London, February 24, 2015


  • Co-author, “Real Estate In the Crosshairs: Congressional Calls to Step Up Scrutiny of Foreign Investment,” Global Banking & Finance Review, June 21, 2017
  • Co-author, "The National Industrial Security Program Directive: Some Hits, Some Runs, Some Errors," Stroock Special Bulletin, February 13, 2017
  • Co-author, "NISPOM Amendments Affect All Cleared Contractors," Pratts Government Contracting Law Report, September 2016
  • Co-author, "CFIUS Reviews are a Reality for More and More Cross-Border Transactions," California International Law Journal, Summer 2016 
  • Co-author, "NISPOM Amendments Affect All Cleared Contractors," Stroock Special Bulletin, May 25, 2016
  • Co-author, "China On Top: China Dominates CFIUS Reviews for Third Year in a Row," Stroock Special Bulletin, February 19, 2016
  • Co-author, "Good News For Foreign Investors In US Defense Industry," Aerospace & Defense and Government Contracts Law360, January 27, 2016
  • Co-author, "What Real Estate Cos. Need To Know About CFIUS Reviews," Law360, January 5, 2016
  • Co-author, "CFIUS and The Waldorf Astoria," Stroock Special Bulletin, December 21, 2015 
  • Co-author, "FOCI Mitigation Update: DSS Moves to a Risk-Based Approach and the NID Process Sees Incremental Improvement," Stroock Special Bulletin, November 23, 2015
  • Contributor, "Report of the Task Force on Foreign Investment Review," American Bar Association Section of Antitrust Law, September 28, 2015 
  • Co-author, "More CFIUS Cases are Going to Full Investigation," Stroock Special Bulletin, March 5, 2015


District of Columbia; Pennsylvania


J.D., Rutgers University School of Law - Camden, 1973

B.A., Lehigh University, 1971



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