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Committee on Foreign Investment in the United States (CFIUS)

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  • Deep Government and Private Sector CFIUS Experience

    Wilson Sonsini’s CFIUS team collectively has 30+ years of CFIUS experience, working on behalf of companies, investors, trade associations, and the U.S. government. The team is comprised of attorneys who have served as CFIUS officials from multiple U.S. government agencies and from other national security agencies and congressional oversight committees, including the Departments of Defense, Homeland Security, Justice, Commerce, and State, as well as CIA, the Army, the Air Force, and the U.S. Senate.

  • Routinely Recognized for Demonstrated CFIUS Expertise

    Wilson Sonsini’s CFIUS attorneys have been recognized among the country's top CFIUS experts according to Chambers Global, Chambers USA, The Legal 500, DCA Live/Bisnow, and The Washingtonian. 

  • Notable Experience at Every CFIUS Phase

    Wilson Sonsini is a trusted advisor to U.S. businesses, foreign acquirers and investors, and financing parties on the full range of CFIUS issues. This includes counseling clients on all aspects of CFIUS, including investor structure and foreign person status, national security sensitivities, whether a CFIUS “declaration” or “notice” is required or warranted, negotiating CFIUS language in transaction documents (whether or not a filing is made), drafting submissions to CFIUS, preparing responses to CFIUS questions, negotiating mitigation agreements and post-closing compliance with those agreements. The team also works with clients to engage other key stakeholders in the CFIUS process, including members of Congress, media, and think tanks, as needed.

  • Diverse and Extensive Representations and Thought Leadership

    Wilson Sonsini’s CFIUS team has represented the National Venture Capital Association and other associations with respect to CFIUS rulemakings required by the Foreign Investment Risk Review Modernization Act (FIRRMA), the most recent CFIUS legislation. We regularly publish articles and are invited conference speakers on CFIUS and related topics. We are trusted by companies and investors across virtually every industry, including information and communications technology, semiconductors, software and hardware, manufacturing, financial services, critical infrastructure, biotech/life sciences, pharmaceuticals, medical devices, cybersecurity, energy and energy storage, autonomous vehicles, media, advertising, artificial intelligence, robotics, blockchain, and virtual reality. Our team’s collective experience covers many hundreds of filed cases and thousands of matters requiring CFIUS counseling.

History

In 1975, President Ford issued an executive order establishing the Committee on Foreign Investment in the United States (CFIUS or "the Committee"). CFIUS conducts national security reviews of investments in, or acquisitions of, U.S. companies when the investments are made by non-U.S. individuals or businesses, or when the investor or acquiror is itself subject to foreign control.

For more than a decade after its start in 1975, CFIUS monitored foreign investment trends but had no enforcement capabilities. In 1988, in response to rising concerns over the effects of foreign direct investment on U.S. national security, Congress amended the Defense Production Act of 1950. This "Exon-Florio Amendment" authorized the President to examine and block transactions resulting in foreign "control" (subsequently broadly defined) of any U.S. business when such a transaction could threaten national security. The President then delegated to CFIUS the task of reviewing such transactions.

In 2007, the Foreign Investment and National Security Act (FINSA) conferred authority directly on CFIUS, codified CFIUS processes, and regularized congressional oversight regarding these processes. FINSA codified the longstanding practice that CFIUS is chaired by the U.S. Department of the Treasury and includes in its membership the U.S. Departments of Commerce, Defense, Energy, Homeland Security, Justice, and State, as well as the U.S. intelligence community, the U.S. Trade Representative, the Office of Science & Technology Policy, and other agencies.

In 2018, the Foreign Investment Risk Review Modernization Act (FIRRMA) substantially reformed CFIUS to broaden its jurisdiction, create mandatory filing requirements for certain transactions, and to give CFIUS more resources. The Department of the Treasury issued final rules that became effective in February 2020, fully implementing the expanded jurisdiction FIRRMA granted to CFIUS. In particular, the rules issued under FIRRMA give CFIUS jurisdiction over many small minority equity investments (even 1 percent or less) in a broad swath of technology, infrastructure, and data businesses. This is in addition to CFIUS’ longstanding jurisdiction to review investments resulting in “control” of any U.S. business. Lastly, the new rules require parties to make filings for certain investments involving “critical technologies” certain investments when a foreign government acquires a “substantial interest.” 

Overview

History

In 1975, President Ford issued an executive order establishing the Committee on Foreign Investment in the United States (CFIUS or "the Committee"). CFIUS conducts national security reviews of investments in, or acquisitions of, U.S. companies when the investments are made by non-U.S. individuals or businesses, or when the investor or acquiror is itself subject to foreign control.

For more than a decade after its start in 1975, CFIUS monitored foreign investment trends but had no enforcement capabilities. In 1988, in response to rising concerns over the effects of foreign direct investment on U.S. national security, Congress amended the Defense Production Act of 1950. This "Exon-Florio Amendment" authorized the President to examine and block transactions resulting in foreign "control" (subsequently broadly defined) of any U.S. business when such a transaction could threaten national security. The President then delegated to CFIUS the task of reviewing such transactions.

In 2007, the Foreign Investment and National Security Act (FINSA) conferred authority directly on CFIUS, codified CFIUS processes, and regularized congressional oversight regarding these processes. FINSA codified the longstanding practice that CFIUS is chaired by the U.S. Department of the Treasury and includes in its membership the U.S. Departments of Commerce, Defense, Energy, Homeland Security, Justice, and State, as well as the U.S. intelligence community, the U.S. Trade Representative, the Office of Science & Technology Policy, and other agencies.

In 2018, the Foreign Investment Risk Review Modernization Act (FIRRMA) substantially reformed CFIUS to broaden its jurisdiction, create mandatory filing requirements for certain transactions, and to give CFIUS more resources. The Department of the Treasury issued final rules that became effective in February 2020, fully implementing the expanded jurisdiction FIRRMA granted to CFIUS. In particular, the rules issued under FIRRMA give CFIUS jurisdiction over many small minority equity investments (even 1 percent or less) in a broad swath of technology, infrastructure, and data businesses. This is in addition to CFIUS’ longstanding jurisdiction to review investments resulting in “control” of any U.S. business. Lastly, the new rules require parties to make filings for certain investments involving “critical technologies” certain investments when a foreign government acquires a “substantial interest.” 

Bylined Articles
Stephen Heifetz Co-Authors Report Recommending Actions to Improve National Security Reviews of Foreign Investment
Wilson Sonsini partner Stephen Heifetz—who held national security positions at the CIA,  Department of Justice, and Department of Homeland Security, including as a Homeland Security representative to the Committee on Foreign Investment in the United States (CFIUS)—and Andrew Grotto, co-director of Stanford University’s Program on Geopolitics, Technology, and Governance and a former senior director on the National Security Council in two presidential administrations, recently co-authored a report offering actionable recommendations for strengthening U.S. investment policy framework and navigating today’s evolving CFIUS landscape.
Alerts
Jupiter in Retrograde: Executive Order Blocks Transaction by Chinese Company
On July 11, 2025, President Trump took the unusual—but no longer rare—step of issuing a divestment order (the Order) on the basis of a recommendation from the Committee on Foreign Investment in the United States (CFIUS). The Order directs the unwinding of the February 2020 acquisition of Jupiter Systems, LLC (Jupiter) by Chinese Company Suirui Group Co., Ltd. (Suirui). Jupiter is a supplier of video-wall processors and other audiovisual equipment, including to the U.S. government and military. CFIUS reviewed and investigated the transaction and reportedly identified national security risks stemming from Suirui’s ownership of Jupiter, related to the potential compromise of Jupiter products used in military and critical infrastructure environments.
Bylined Articles
CFIUS, National Security, and “Magic Beans”: Stephen Heifetz Explores the U.S.–Nippon Steel Deal in Council on Foreign Relations Article
Stephen Heifetz, a partner in Wilson Sonsini’s National Security and Trade practice, authored an article for the Council on Foreign Relations titled “The Nippon–U.S. Steel Deal, a Golden Share, and Magic Beans.”
News Articles
Stephen Heifetz Discusses Federal Oversight and the “Golden Share” in NPR Illinois Interview on Nippon–U.S. Steel Deal
During a segment of The 21st Show on NPR Illinois titled “How Does Nippon’s Acquisition of U.S. Steel Impact Illinois Steelworkers?”, national security and trade attorney Stephen Heifetz, a partner at Wilson Sonsini, offered insight into the federal government’s involvement in the deal. He pointed to several unusual elements, including the prolonged review process by the Committee on Foreign Investment in the United States (CFIUS) and a series of accompanying conditions for approval—developments that, taken together, reflect a more challenging landscape for foreign investors.
Alerts
The CFIUS “Fast-Track” Pilot Program: Why You (Probably) Can Ignore This Space
On May 8, 2025, the U.S. Department of the Treasury (Treasury) announced that it will create a “fast-track pilot program” for certain foreign investors. The stated goal of the program is to streamline investment reviews by the Committee on Foreign Investment in the United States (CFIUS).
News Articles
Foreign Investment Watch Names Joshua Gruenspecht and Stephen Heifetz Among “Top Advisors 2025”
On March 11, 2025, Foreign Investment Watch named Wilson Sonsini partners Joshua Gruenspecht and Stephen Heifetz to its “Top Advisors 2025” list, recognizing top advisors who provide advice and counsel concerning foreign investment and national security in the U.S. and abroad. Josh and Stephen are among the 40 individuals selected to the list, and their accompanying profiles describe the depth of their practices and expertise.
View All
Insights
Bylined Articles
Stephen Heifetz Co-Authors Report Recommending Actions to Improve National Security Reviews of Foreign Investment
Wilson Sonsini partner Stephen Heifetz—who held national security positions at the CIA,  Department of Justice, and Department of Homeland Security, including as a Homeland Security representative to the Committee on Foreign Investment in the United States (CFIUS)—and Andrew Grotto, co-director of Stanford University’s Program on Geopolitics, Technology, and Governance and a former senior director on the National Security Council in two presidential administrations, recently co-authored a report offering actionable recommendations for strengthening U.S. investment policy framework and navigating today’s evolving CFIUS landscape.
Alerts
Jupiter in Retrograde: Executive Order Blocks Transaction by Chinese Company
On July 11, 2025, President Trump took the unusual—but no longer rare—step of issuing a divestment order (the Order) on the basis of a recommendation from the Committee on Foreign Investment in the United States (CFIUS). The Order directs the unwinding of the February 2020 acquisition of Jupiter Systems, LLC (Jupiter) by Chinese Company Suirui Group Co., Ltd. (Suirui). Jupiter is a supplier of video-wall processors and other audiovisual equipment, including to the U.S. government and military. CFIUS reviewed and investigated the transaction and reportedly identified national security risks stemming from Suirui’s ownership of Jupiter, related to the potential compromise of Jupiter products used in military and critical infrastructure environments.
Bylined Articles
CFIUS, National Security, and “Magic Beans”: Stephen Heifetz Explores the U.S.–Nippon Steel Deal in Council on Foreign Relations Article
Stephen Heifetz, a partner in Wilson Sonsini’s National Security and Trade practice, authored an article for the Council on Foreign Relations titled “The Nippon–U.S. Steel Deal, a Golden Share, and Magic Beans.”
News Articles
Stephen Heifetz Discusses Federal Oversight and the “Golden Share” in NPR Illinois Interview on Nippon–U.S. Steel Deal
During a segment of The 21st Show on NPR Illinois titled “How Does Nippon’s Acquisition of U.S. Steel Impact Illinois Steelworkers?”, national security and trade attorney Stephen Heifetz, a partner at Wilson Sonsini, offered insight into the federal government’s involvement in the deal. He pointed to several unusual elements, including the prolonged review process by the Committee on Foreign Investment in the United States (CFIUS) and a series of accompanying conditions for approval—developments that, taken together, reflect a more challenging landscape for foreign investors.
Alerts
The CFIUS “Fast-Track” Pilot Program: Why You (Probably) Can Ignore This Space
On May 8, 2025, the U.S. Department of the Treasury (Treasury) announced that it will create a “fast-track pilot program” for certain foreign investors. The stated goal of the program is to streamline investment reviews by the Committee on Foreign Investment in the United States (CFIUS).
News Articles
Foreign Investment Watch Names Joshua Gruenspecht and Stephen Heifetz Among “Top Advisors 2025”
On March 11, 2025, Foreign Investment Watch named Wilson Sonsini partners Joshua Gruenspecht and Stephen Heifetz to its “Top Advisors 2025” list, recognizing top advisors who provide advice and counsel concerning foreign investment and national security in the U.S. and abroad. Josh and Stephen are among the 40 individuals selected to the list, and their accompanying profiles describe the depth of their practices and expertise.
View All
Speaking Engagements
ACI's 12th National CFIUS Conference
On April 21, 2026, Wilson Sonsini partner Joshua Gruenspecht will be speaking as part of the ACI National CFIUS Conference. He and his fellow presenters will address the topic “A Legal and Practical Guide to Mitigation Agreements: Key Legal Nuances and National Security Agreement (NSA) Structures for Dual-Use and Emerging Technology.” This workshop will examine how the Committee is approaching transactions and mitigation involving dual-use and emerging technologies, as well as the evolving landscape of legal and practical considerations affecting National Security Agreements (NSAs). For more information, please visit the event website.
Speaking Engagements
Helsinki Geoeconomics Week 2025
From August 11–14, 2025, Wilson Sonsini partner Stephen Heifetz will participate in the Helsinki Geoeconomics Week, hosted by the Helsinki Geoeconomics Society. On August 11, Stephen will speak on the panel “Capital Under Siege: Geopolitical Filters and Retaliatory Investment Risk.” On August 12, he will join the session “Economic Lawfare: How States Use Law as a Weapon of Advantage.” The annual Helsinki Geoeconomics Week is attended by global policymakers, corporate strategists, financial experts, and academics, who focus on bridging the gap between theory and practice in geoeconomics. For more information about the event, you can visit the event website.
WSGR Events
Tariffs and Antitrust in Focus: What Companies Need to Know
Join us for a timely webinar examining the shifting U.S. tariff landscape and its intersection with trade compliance and antitrust enforcement matters, including a discussion of sector-specific risks.
Affiliated Programs
14th London Forum on Global Economic Sanctions
Join us at the premier conference on multi-jurisdictional compliance and enforcement where a cross-border faculty of key government officials, financial institutions and exporters from both sides of the pond will help you stay on top of the newest best practices. You'll benefit from large and smaller-group discussions with the very people you'll want to meet.
Speaking Engagements
Medical Devices Meet National Security: How BIOSECURE, CFIUS, and Other National Security Rules are Impacting Fundraising and Dealmaking?
On Wednesday, October 23rd, MDMA will host a member-only webinar from 2pm-3pm ET, "Medical Devices Meet National Security: How BIOSECURE, CFIUS, and Other National Security Rules are Impacting Fundraising and Dealmaking?" hosted by Associate member, Joshua Gruenspecht, of Wilson Sonsini.
Speaking Engagements
Georgetown Law – 45th Annual International Trade Update
Going into its 45th iteration, Georgetown Law's International Trade Update is an annual continuing legal education program for the trade and customs bar. The event provides an annual forecast on legal and policy developments, which may feature trade remedies and customs law, trade policy, customs practice and judicial decisions, and developments in disputes and trade negotiations. Learn more and register here.
View All
Events
Speaking Engagements
ACI's 12th National CFIUS Conference
On April 21, 2026, Wilson Sonsini partner Joshua Gruenspecht will be speaking as part of the ACI National CFIUS Conference. He and his fellow presenters will address the topic “A Legal and Practical Guide to Mitigation Agreements: Key Legal Nuances and National Security Agreement (NSA) Structures for Dual-Use and Emerging Technology.” This workshop will examine how the Committee is approaching transactions and mitigation involving dual-use and emerging technologies, as well as the evolving landscape of legal and practical considerations affecting National Security Agreements (NSAs). For more information, please visit the event website.
Speaking Engagements
Helsinki Geoeconomics Week 2025
From August 11–14, 2025, Wilson Sonsini partner Stephen Heifetz will participate in the Helsinki Geoeconomics Week, hosted by the Helsinki Geoeconomics Society. On August 11, Stephen will speak on the panel “Capital Under Siege: Geopolitical Filters and Retaliatory Investment Risk.” On August 12, he will join the session “Economic Lawfare: How States Use Law as a Weapon of Advantage.” The annual Helsinki Geoeconomics Week is attended by global policymakers, corporate strategists, financial experts, and academics, who focus on bridging the gap between theory and practice in geoeconomics. For more information about the event, you can visit the event website.
WSGR Events
Tariffs and Antitrust in Focus: What Companies Need to Know
Join us for a timely webinar examining the shifting U.S. tariff landscape and its intersection with trade compliance and antitrust enforcement matters, including a discussion of sector-specific risks.
Affiliated Programs
14th London Forum on Global Economic Sanctions
Join us at the premier conference on multi-jurisdictional compliance and enforcement where a cross-border faculty of key government officials, financial institutions and exporters from both sides of the pond will help you stay on top of the newest best practices. You'll benefit from large and smaller-group discussions with the very people you'll want to meet.
Speaking Engagements
Medical Devices Meet National Security: How BIOSECURE, CFIUS, and Other National Security Rules are Impacting Fundraising and Dealmaking?
On Wednesday, October 23rd, MDMA will host a member-only webinar from 2pm-3pm ET, "Medical Devices Meet National Security: How BIOSECURE, CFIUS, and Other National Security Rules are Impacting Fundraising and Dealmaking?" hosted by Associate member, Joshua Gruenspecht, of Wilson Sonsini.
Speaking Engagements
Georgetown Law – 45th Annual International Trade Update
Going into its 45th iteration, Georgetown Law's International Trade Update is an annual continuing legal education program for the trade and customs bar. The event provides an annual forecast on legal and policy developments, which may feature trade remedies and customs law, trade policy, customs practice and judicial decisions, and developments in disputes and trade negotiations. Learn more and register here.
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Josephine Aiello LeBeau
Partner
Washington, D.C.
Josephine focuses on matters related to compliance and enforcement of U.S. export control and sanctions.
  • National Security and Trade
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Michael S. Casey
Partner
London
Mike Casey is a dual-qualified, Chambers-ranked (Band 1) partner in Wilson Sonsini Goodrich & Rosati’s London office. His practice focuses on advising clients on sanctions, export controls, anti-corruption, and anti-money laundering issues in investigations, counseling, and compliance matters. In addition, he regularly acts as a specialist in mergers, acquisitions, venture financings, lending arrangements, and other types of corporate transactions. He also frequently advises clients on the UK’s National Security and Investment Act and other foreign direct investment review regimes.

Chambers UK noted that Mike is “a one-stop shop for global sanctions advice” who is “very responsive with his provision of highly commercial advice.” The publication also described Mike as “one of the most experienced practitioners in the market” who “understands and takes into consideration any necessary complexities and understands the importance of commerciality when giving recommendations.”

Mike has led numerous internal and government-initiated investigations involving potential violations of sanctions, export controls, anti-money laundering laws, anti-bribery laws, and fraud laws throughout the world. He has also represented individuals in pending and threatened litigation.

Mike regularly advises clients on a wide range of compliance issues. He works with clients to develop and implement state-of-the-art compliance programs, including corporate policies, training programs, and third-party procedures. Further, Mike assists clients with carrying out due diligence for many types of corporate transactions. He has successfully guided dozens of investors and companies through the NSI Act review process.

Prior to joining Wilson Sonsini, Mike was a partner in the London office of Kirkland & Ellis.

Mike is the author of Sanctions Enforcement and Compliance: A Practitioner’s Guide to OFAC, a treatise published by Bloomberg BNA. Additionally, leading legal publications have published more than 45 of his articles. He has been quoted in numerous publications, including The Wall Street Journal, The New York Times, and Global Investigations Review.
  • National Security and Trade
View Profile
Mark R. Fitzgerald
Partner
Boston
Mark is a veteran attorney who advises technology and life sciences companies on corporate law and transactional matters.
  • Corporate
View Profile
Joshua F. Gruenspecht
Partner
Washington, D.C.
Joshua advises domestic and foreign investors, funds, established companies and startups in regulatory, investigative, and enforcement matters.
  • National Security and Trade
View Profile
Stephen R. Heifetz
Partner
Washington, D.C.

Stephen advises clients on laws and policies at the intersection of international business and national security. He previously served in the U.S. government on the Committee on Foreign Investment in the U.S.

  • National Security and Trade
View Profile
Seth Cowell
Of Counsel
Washington, D.C.
Seth Cowell is Of Counsel in the Washington, D.C., office of Wilson Sonsini Goodrich & Rosati, where he counsels and represents domestic and foreign entities in national security-related areas, including matters before the Committee on Foreign Investment in the United States (CFIUS). He also counsels clients on matters relating to federal government contracting under the Federal Acquisition Regulation (FAR) and the Defense Federal Acquisition Regulation Supplement (DFARS), the Foreign Corrupt Practices Act (FCPA), and other laws and regulations concerning domestic and international business.
  • National Security and Trade
View Profile
Anne E. Seymour
Of Counsel
Washington, D.C.
Anne Seymour is Of Counsel in Wilson Sonsini Goodrich & Rosati's Washington, D.C., office, where she focuses on issues related to compliance and enforcement of U.S. export control regulations and economic sanctions and U.S. import regulations.
  • National Security and Trade
View Profile
Grace Beck
Associate
Washington, D.C.
Grace Beck is an associate in the Washington, D.C., office of Wilson Sonsini Goodrich & Rosati, where she focuses on national security and international trade regulatory matters. She advises domestic and foreign entities on matters before the Committee on Foreign Investment in the United States (CFIUS) and other foreign direct investment (FDI) reviews. Grace also counsels clients on compliance and enforcement pertaining to export controls and information and communications technology and services (ICTS) supply chain regulations administered by the Bureau of Industry and Security (BIS), economic sanctions administered by the Office of Foreign Assets Control (OFAC), and anti-money laundering laws administered by the Financial Crimes Enforcement Network (FinCEN) and other financial regulators.

While in law school, Grace served as the legal intern at the U.S. Department of Commerce for the Office of Information and Communications Technology and Services (OICTS) and the Office of Chief Counsel for BIS (OCC/IS), and for the Office of General Counsel at the Defense Intelligence Agency (DIA). Prior to law school, Grace worked as an administrator at a think tank specializing in international affairs and was a restaurateur.
  • National Security and Trade
View Profile
Nimit Dhir
Associate
Washington, D.C.
Nimit Dhir is an associate in the Washington, D.C., office of Wilson Sonsini Goodrich & Rosati. He focuses his practice at the intersection of international business and national security, primarily the Committee on Foreign Investment in the United States. 
  • National Security and Trade
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Kara D. Millard
Associate
Washington, D.C.
Kara Millard is a national security associate in the Washington, D.C., office of Wilson Sonsini Goodrich & Rosati, where she focuses on economic sanctions and export controls, including those administered by the U.S. Department of Commerce’s Bureau of Industry and Security (BIS) and the U.S. Department of Treasury’s Office of Foreign Assets Control (OFAC). She represents clients in obtaining BIS and OFAC licenses, advises on compliance risks in mergers and acquisitions, and develops compliance programs to assist companies in avoiding sanctions and export control violations. Kara also provides export controls and sanctions compliance advice to clients from a wide range of industries. This work includes identifying proper classifications and license requirements under the US Export Administration Regulations (EAR) and military-specific controls administered under the International Traffic in Arms Regulations (ITAR). Kara supports clients in conducting internal investigations out of concern for potential violations, as well as preparing Voluntary Self-Disclosures (VSDs) and responses to government agencies.
  • National Security and Trade
View Profile
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People
Josephine Aiello LeBeau
Partner
Washington, D.C.
Josephine focuses on matters related to compliance and enforcement of U.S. export control and sanctions.
  • National Security and Trade
View Profile
Michael S. Casey
Partner
London
Mike Casey is a dual-qualified, Chambers-ranked (Band 1) partner in Wilson Sonsini Goodrich & Rosati’s London office. His practice focuses on advising clients on sanctions, export controls, anti-corruption, and anti-money laundering issues in investigations, counseling, and compliance matters. In addition, he regularly acts as a specialist in mergers, acquisitions, venture financings, lending arrangements, and other types of corporate transactions. He also frequently advises clients on the UK’s National Security and Investment Act and other foreign direct investment review regimes.

Chambers UK noted that Mike is “a one-stop shop for global sanctions advice” who is “very responsive with his provision of highly commercial advice.” The publication also described Mike as “one of the most experienced practitioners in the market” who “understands and takes into consideration any necessary complexities and understands the importance of commerciality when giving recommendations.”

Mike has led numerous internal and government-initiated investigations involving potential violations of sanctions, export controls, anti-money laundering laws, anti-bribery laws, and fraud laws throughout the world. He has also represented individuals in pending and threatened litigation.

Mike regularly advises clients on a wide range of compliance issues. He works with clients to develop and implement state-of-the-art compliance programs, including corporate policies, training programs, and third-party procedures. Further, Mike assists clients with carrying out due diligence for many types of corporate transactions. He has successfully guided dozens of investors and companies through the NSI Act review process.

Prior to joining Wilson Sonsini, Mike was a partner in the London office of Kirkland & Ellis.

Mike is the author of Sanctions Enforcement and Compliance: A Practitioner’s Guide to OFAC, a treatise published by Bloomberg BNA. Additionally, leading legal publications have published more than 45 of his articles. He has been quoted in numerous publications, including The Wall Street Journal, The New York Times, and Global Investigations Review.
  • National Security and Trade
View Profile
Mark R. Fitzgerald
Partner
Boston
Mark is a veteran attorney who advises technology and life sciences companies on corporate law and transactional matters.
  • Corporate
View Profile
Joshua F. Gruenspecht
Partner
Washington, D.C.
Joshua advises domestic and foreign investors, funds, established companies and startups in regulatory, investigative, and enforcement matters.
  • National Security and Trade
View Profile
Stephen R. Heifetz
Partner
Washington, D.C.

Stephen advises clients on laws and policies at the intersection of international business and national security. He previously served in the U.S. government on the Committee on Foreign Investment in the U.S.

  • National Security and Trade
View Profile
Seth Cowell
Of Counsel
Washington, D.C.
Seth Cowell is Of Counsel in the Washington, D.C., office of Wilson Sonsini Goodrich & Rosati, where he counsels and represents domestic and foreign entities in national security-related areas, including matters before the Committee on Foreign Investment in the United States (CFIUS). He also counsels clients on matters relating to federal government contracting under the Federal Acquisition Regulation (FAR) and the Defense Federal Acquisition Regulation Supplement (DFARS), the Foreign Corrupt Practices Act (FCPA), and other laws and regulations concerning domestic and international business.
  • National Security and Trade
View Profile
Anne E. Seymour
Of Counsel
Washington, D.C.
Anne Seymour is Of Counsel in Wilson Sonsini Goodrich & Rosati's Washington, D.C., office, where she focuses on issues related to compliance and enforcement of U.S. export control regulations and economic sanctions and U.S. import regulations.
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Grace Beck
Associate
Washington, D.C.
Grace Beck is an associate in the Washington, D.C., office of Wilson Sonsini Goodrich & Rosati, where she focuses on national security and international trade regulatory matters. She advises domestic and foreign entities on matters before the Committee on Foreign Investment in the United States (CFIUS) and other foreign direct investment (FDI) reviews. Grace also counsels clients on compliance and enforcement pertaining to export controls and information and communications technology and services (ICTS) supply chain regulations administered by the Bureau of Industry and Security (BIS), economic sanctions administered by the Office of Foreign Assets Control (OFAC), and anti-money laundering laws administered by the Financial Crimes Enforcement Network (FinCEN) and other financial regulators.

While in law school, Grace served as the legal intern at the U.S. Department of Commerce for the Office of Information and Communications Technology and Services (OICTS) and the Office of Chief Counsel for BIS (OCC/IS), and for the Office of General Counsel at the Defense Intelligence Agency (DIA). Prior to law school, Grace worked as an administrator at a think tank specializing in international affairs and was a restaurateur.
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Nimit Dhir
Associate
Washington, D.C.
Nimit Dhir is an associate in the Washington, D.C., office of Wilson Sonsini Goodrich & Rosati. He focuses his practice at the intersection of international business and national security, primarily the Committee on Foreign Investment in the United States. 
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Kara D. Millard
Associate
Washington, D.C.
Kara Millard is a national security associate in the Washington, D.C., office of Wilson Sonsini Goodrich & Rosati, where she focuses on economic sanctions and export controls, including those administered by the U.S. Department of Commerce’s Bureau of Industry and Security (BIS) and the U.S. Department of Treasury’s Office of Foreign Assets Control (OFAC). She represents clients in obtaining BIS and OFAC licenses, advises on compliance risks in mergers and acquisitions, and develops compliance programs to assist companies in avoiding sanctions and export control violations. Kara also provides export controls and sanctions compliance advice to clients from a wide range of industries. This work includes identifying proper classifications and license requirements under the US Export Administration Regulations (EAR) and military-specific controls administered under the International Traffic in Arms Regulations (ITAR). Kara supports clients in conducting internal investigations out of concern for potential violations, as well as preparing Voluntary Self-Disclosures (VSDs) and responses to government agencies.
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Related Practices
  • National Security and Trade
  • Government Investigations
  • Export Control and Sanctions
  • FCPA and Anti-Corruption
Recent Insights
Bylined Articles
Stephen Heifetz Co-Authors Report Recommending Actions to Improve National Security Reviews of Foreign Investment
Wilson Sonsini partner Stephen Heifetz—who held national security positions at the CIA,  Department of Justice, and Department of Homeland Security, including as a Homeland Security representative to the Committee on Foreign Investment in the United States (CFIUS)—and Andrew Grotto, co-director of Stanford University’s Program on Geopolitics, Technology, and Governance and a former senior director on the National Security Council in two presidential administrations, recently co-authored a report offering actionable recommendations for strengthening U.S. investment policy framework and navigating today’s evolving CFIUS landscape.
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Alerts
Jupiter in Retrograde: Executive Order Blocks Transaction by Chinese Company
On July 11, 2025, President Trump took the unusual—but no longer rare—step of issuing a divestment order (the Order) on the basis of a recommendation from the Committee on Foreign Investment in the United States (CFIUS). The Order directs the unwinding of the February 2020 acquisition of Jupiter Systems, LLC (Jupiter) by Chinese Company Suirui Group Co., Ltd. (Suirui). Jupiter is a supplier of video-wall processors and other audiovisual equipment, including to the U.S. government and military. CFIUS reviewed and investigated the transaction and reportedly identified national security risks stemming from Suirui’s ownership of Jupiter, related to the potential compromise of Jupiter products used in military and critical infrastructure environments.
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Recent Events
Speaking Engagements
ACI's 12th National CFIUS Conference
On April 21, 2026, Wilson Sonsini partner Joshua Gruenspecht will be speaking as part of the ACI National CFIUS Conference. He and his fellow presenters will address the topic “A Legal and Practical Guide to Mitigation Agreements: Key Legal Nuances and National Security Agreement (NSA) Structures for Dual-Use and Emerging Technology.” This workshop will examine how the Committee is approaching transactions and mitigation involving dual-use and emerging technologies, as well as the evolving landscape of legal and practical considerations affecting National Security Agreements (NSAs). For more information, please visit the event website.
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Speaking Engagements
Helsinki Geoeconomics Week 2025
From August 11–14, 2025, Wilson Sonsini partner Stephen Heifetz will participate in the Helsinki Geoeconomics Week, hosted by the Helsinki Geoeconomics Society. On August 11, Stephen will speak on the panel “Capital Under Siege: Geopolitical Filters and Retaliatory Investment Risk.” On August 12, he will join the session “Economic Lawfare: How States Use Law as a Weapon of Advantage.” The annual Helsinki Geoeconomics Week is attended by global policymakers, corporate strategists, financial experts, and academics, who focus on bridging the gap between theory and practice in geoeconomics. For more information about the event, you can visit the event website.
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Key Contacts
Stephen R. Heifetz
Partner
Washington, D.C.

Stephen advises clients on laws and policies at the intersection of international business and national security. He previously served in the U.S. government on the Committee on Foreign Investment in the U.S.

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Joshua F. Gruenspecht
Partner
Washington, D.C.
Joshua advises domestic and foreign investors, funds, established companies and startups in regulatory, investigative, and enforcement matters.
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