Nathan J.Muyskens
Partner
Commercial Litigation
nmuyskens@seyfarth.com
Nate serves as strategic counsel to clients facing complex investigations, regulatory challenges, high-stakes litigation, and business-critical disputes.
More About Nate
Nate represents corporations and individuals in criminal grand jury investigations and prosecutions, internal investigations, regulatory inquiries and enforcement actions, and parallel civil proceedings. A trusted advisor to Fortune 500 companies, Nate is frequently called upon to handle their most significant and sensitive matters. He counsels boards of directors, negotiates with government agencies, and serves as lead trial counsel in high-stakes litigation. His clients span a broad range of industries, including major investment banks, professional sports organizations, global manufacturers, and international restaurant brands, all of whom rely on his strategic judgment and advocacy when facing their most complex legal challenges.
Nate’s work is often at the center of matters that attract national attention, with cases featured in publications such as The Wall Street Journal and The New York Times. Among his notable representations, he co-led the defense team that secured the first-ever acquittal of a commodities trader in a federal “spoofing” trial and has represented some of the world’s largest airlines in efforts to combat sophisticated fraud schemes and protect consumers. He also advises and defends high-profile individuals, including C-suite executives, senior government officials, professional athletes, and Grammy- and Oscar-winning performers. While many of his matters have garnered significant media attention, some of his most meaningful successes have been achieved quietly—resolving investigations and disputes before they become public.
In addition to his white collar practice, Nate has served as trial counsel in numerous civil matters across the country, including antitrust and trademark litigation. Prior to joining Seyfarth, Nate served as the Global Chair of the White Collar and Investigations Practice at another large international law firm. Before entering private practice, he held a distinguished career in public service, representing the United States in a wide range of significant matters. His government experience includes prosecuting high-level public corruption cases and antitrust offenses, as well as serving as Counsel to Senate Majority Leader Robert J. Dole. This combination of courtroom experience, government service, and strategic counsel enables Nate to provide clients with practical, sophisticated guidance in their most critical legal matters.
Nate’s work is often at the center of matters that attract national attention, with cases featured in publications such as The Wall Street Journal and The New York Times. Among his notable representations, he co-led the defense team that secured the first-ever acquittal of a commodities trader in a federal “spoofing” trial and has represented some of the world’s largest airlines in efforts to combat sophisticated fraud schemes and protect consumers. He also advises and defends high-profile individuals, including C-suite executives, senior government officials, professional athletes, and Grammy- and Oscar-winning performers. While many of his matters have garnered significant media attention, some of his most meaningful successes have been achieved quietly—resolving investigations and disputes before they become public.
In addition to his white collar practice, Nate has served as trial counsel in numerous civil matters across the country, including antitrust and trademark litigation. Prior to joining Seyfarth, Nate served as the Global Chair of the White Collar and Investigations Practice at another large international law firm. Before entering private practice, he held a distinguished career in public service, representing the United States in a wide range of significant matters. His government experience includes prosecuting high-level public corruption cases and antitrust offenses, as well as serving as Counsel to Senate Majority Leader Robert J. Dole. This combination of courtroom experience, government service, and strategic counsel enables Nate to provide clients with practical, sophisticated guidance in their most critical legal matters.
- JD, University of Kansas School of Law
Kansas Journal of Law & Public Policy, publications editor
- District of Columbia
- New York
- Virginia
Related Services
Related Key Industries
- Secured an acquittal for Andre Flotron in US v. Flotron—the first acquittal in a “spoofing” commodities fraud.
- Representing several government contractors in DOJ Antitrust Division investigations into alleged bid-rigging and price-fixing.
- Represented several large financial institutions in Department of Justice investigations into alleged failures to detect Middle Eastern terrorist funds and funds related to South American narcotics trafficking.
- Represented a British data-mining firm in the Special Counsel’s investigation into irregularities in the 2016 presidential election. Also represented this firm in numerous congressional investigations into Russian interference in the US electoral process.
- Represents numerous executives in the financial industry in various benchmarking investigations.
- Represented several individuals in the Special Counsel’s investigation into the 2016 presidential campaign.
- Represented the CFO of a global energy company into an SEC investigation relating to accounting errors where the SEC declined to prosecute prior to issuing a Wells notice.
- Represented several high-ranking executives of leading auto parts manufacturers in the ongoing US Department of Justice (DOJ) auto parts cartel investigations.
- Represented numerous individuals in the Justice Department’s investigation into fraud and collusion in the global FX market.
- Represents global equipment manufacturer in matter relating to the sales of products to banned countries in violation of US trade sanctions.
- Represented major retailer in FTC investigation into company’s social media and native advertising campaigns. Settled matter with FTC with no fines and minimal compliance conditions.
- Conducted an internal investigation into a much-publicized posting of a major motion picture to the internet prior to its public release. Coordinated the company’s efforts to cooperate with law enforcement in this matter.
- Represent a UK executive of a US information technology company in an SEC investigation into alleged accounting irregularities relating to the largest civilian government contract in the United Kingdom’s history.
- Represented several individuals in the Department of Justice and Commodities and Futures Exchange Commission’s investigation into Precious Metals Trading.
- Convinced the SEC to decline prosecution in an insider trading case for a prominent Swiss banker.°
- Represent a Swiss derivatives trader, formerly of a global financial institution, in the well-publicized LIBOR investigation.
- Represent several non-US citizens, from different companies, involved in the various global auto parts cartel cases being pursued by the United States Department of Justice.
- Represent a former Japanese employee of a global financial institution in the Department of Justice and UK Serious Fraud Office’s investigation into the manipulation of YEN LIBOR.
- Represented Outbrain as the victim of the Syrian Electronic Army’s attack on the client’s delivery services for the Washington Post and CNN. Coordinated Outbrain’s cooperation with law enforcement in this matter.
- Represent an Australian former executive of a US publicly-traded company in an SEC investigation relating to accounting irregularities of the Australian subsidiary.
- Conducted an internal investigation for a global heavy equipment manufacturer relating to allegations of FCPA violations in Mexico and China.
- Recognized by Best Lawyers in America (Woodward/White Inc.) for Criminal Defense: White-Collar (2026)
- Recognized as a "Litigation Star" by Benchmark Litigation (Euromoney Institutional Investor) (2023-2026)
- Recognized as one of the "500 Global Leaders in Crisis Management " by Lawdragon (2025-2026)
- Listed in Chambers USA for Litigation: White-Collar Crime & Government Investigations (2021-2025)
- Recognized by The Legal 500 for Dispute Resolution - Corporate Investigations and White-Collar Criminal Defense (2019-2025); Transport - Aviation and Air Travel - Litigation and Regulation (Legalese Ltd.) (2025)
- Recognized as a “Recommended Attorney” by The Legal 500 (2023-2025)
- Recognized by The Legal 500 Latin America Guide for Latin America: International – Compliance and Investigations (Legalese Ltd.) (2021-2022)
- Listed in Washington DC Super Lawyers (Thomson Reuters) (2013-2023, 2025)
- Team Named as a Washington, DC Litigation Department of the Year - White Collar Defense & Special Investigations by National Law Journal (ALM) (2022)
- American Bar Association, Criminal Litigation Committee, Securities Enforcement Subcommittee Chair (2012-2015)
Nate serves as strategic counsel to clients facing complex investigations, regulatory challenges, high-stakes litigation, and business-critical disputes.
More About Nate
Nate represents corporations and individuals in criminal grand jury investigations and prosecutions, internal investigations, regulatory inquiries and enforcement actions, and parallel civil proceedings. A trusted advisor to Fortune 500 companies, Nate is frequently called upon to handle their most significant and sensitive matters. He counsels boards of directors, negotiates with government agencies, and serves as lead trial counsel in high-stakes litigation. His clients span a broad range of industries, including major investment banks, professional sports organizations, global manufacturers, and international restaurant brands, all of whom rely on his strategic judgment and advocacy when facing their most complex legal challenges.
Nate’s work is often at the center of matters that attract national attention, with cases featured in publications such as The Wall Street Journal and The New York Times. Among his notable representations, he co-led the defense team that secured the first-ever acquittal of a commodities trader in a federal “spoofing” trial and has represented some of the world’s largest airlines in efforts to combat sophisticated fraud schemes and protect consumers. He also advises and defends high-profile individuals, including C-suite executives, senior government officials, professional athletes, and Grammy- and Oscar-winning performers. While many of his matters have garnered significant media attention, some of his most meaningful successes have been achieved quietly—resolving investigations and disputes before they become public.
In addition to his white collar practice, Nate has served as trial counsel in numerous civil matters across the country, including antitrust and trademark litigation. Prior to joining Seyfarth, Nate served as the Global Chair of the White Collar and Investigations Practice at another large international law firm. Before entering private practice, he held a distinguished career in public service, representing the United States in a wide range of significant matters. His government experience includes prosecuting high-level public corruption cases and antitrust offenses, as well as serving as Counsel to Senate Majority Leader Robert J. Dole. This combination of courtroom experience, government service, and strategic counsel enables Nate to provide clients with practical, sophisticated guidance in their most critical legal matters.
Nate’s work is often at the center of matters that attract national attention, with cases featured in publications such as The Wall Street Journal and The New York Times. Among his notable representations, he co-led the defense team that secured the first-ever acquittal of a commodities trader in a federal “spoofing” trial and has represented some of the world’s largest airlines in efforts to combat sophisticated fraud schemes and protect consumers. He also advises and defends high-profile individuals, including C-suite executives, senior government officials, professional athletes, and Grammy- and Oscar-winning performers. While many of his matters have garnered significant media attention, some of his most meaningful successes have been achieved quietly—resolving investigations and disputes before they become public.
In addition to his white collar practice, Nate has served as trial counsel in numerous civil matters across the country, including antitrust and trademark litigation. Prior to joining Seyfarth, Nate served as the Global Chair of the White Collar and Investigations Practice at another large international law firm. Before entering private practice, he held a distinguished career in public service, representing the United States in a wide range of significant matters. His government experience includes prosecuting high-level public corruption cases and antitrust offenses, as well as serving as Counsel to Senate Majority Leader Robert J. Dole. This combination of courtroom experience, government service, and strategic counsel enables Nate to provide clients with practical, sophisticated guidance in their most critical legal matters.
- JD, University of Kansas School of Law
Kansas Journal of Law & Public Policy, publications editor
- District of Columbia
- New York
- Virginia
Related Services
Related Key Industries
- Secured an acquittal for Andre Flotron in US v. Flotron—the first acquittal in a “spoofing” commodities fraud.
- Representing several government contractors in DOJ Antitrust Division investigations into alleged bid-rigging and price-fixing.
- Represented several large financial institutions in Department of Justice investigations into alleged failures to detect Middle Eastern terrorist funds and funds related to South American narcotics trafficking.
- Represented a British data-mining firm in the Special Counsel’s investigation into irregularities in the 2016 presidential election. Also represented this firm in numerous congressional investigations into Russian interference in the US electoral process.
- Represents numerous executives in the financial industry in various benchmarking investigations.
- Represented several individuals in the Special Counsel’s investigation into the 2016 presidential campaign.
- Represented the CFO of a global energy company into an SEC investigation relating to accounting errors where the SEC declined to prosecute prior to issuing a Wells notice.
- Represented several high-ranking executives of leading auto parts manufacturers in the ongoing US Department of Justice (DOJ) auto parts cartel investigations.
- Represented numerous individuals in the Justice Department’s investigation into fraud and collusion in the global FX market.
- Represents global equipment manufacturer in matter relating to the sales of products to banned countries in violation of US trade sanctions.
- Represented major retailer in FTC investigation into company’s social media and native advertising campaigns. Settled matter with FTC with no fines and minimal compliance conditions.
- Conducted an internal investigation into a much-publicized posting of a major motion picture to the internet prior to its public release. Coordinated the company’s efforts to cooperate with law enforcement in this matter.
- Represent a UK executive of a US information technology company in an SEC investigation into alleged accounting irregularities relating to the largest civilian government contract in the United Kingdom’s history.
- Represented several individuals in the Department of Justice and Commodities and Futures Exchange Commission’s investigation into Precious Metals Trading.
- Convinced the SEC to decline prosecution in an insider trading case for a prominent Swiss banker.°
- Represent a Swiss derivatives trader, formerly of a global financial institution, in the well-publicized LIBOR investigation.
- Represent several non-US citizens, from different companies, involved in the various global auto parts cartel cases being pursued by the United States Department of Justice.
- Represent a former Japanese employee of a global financial institution in the Department of Justice and UK Serious Fraud Office’s investigation into the manipulation of YEN LIBOR.
- Represented Outbrain as the victim of the Syrian Electronic Army’s attack on the client’s delivery services for the Washington Post and CNN. Coordinated Outbrain’s cooperation with law enforcement in this matter.
- Represent an Australian former executive of a US publicly-traded company in an SEC investigation relating to accounting irregularities of the Australian subsidiary.
- Conducted an internal investigation for a global heavy equipment manufacturer relating to allegations of FCPA violations in Mexico and China.
- Recognized by Best Lawyers in America (Woodward/White Inc.) for Criminal Defense: White-Collar (2026)
- Recognized as a "Litigation Star" by Benchmark Litigation (Euromoney Institutional Investor) (2023-2026)
- Recognized as one of the "500 Global Leaders in Crisis Management " by Lawdragon (2025-2026)
- Listed in Chambers USA for Litigation: White-Collar Crime & Government Investigations (2021-2025)
- Recognized by The Legal 500 for Dispute Resolution - Corporate Investigations and White-Collar Criminal Defense (2019-2025); Transport - Aviation and Air Travel - Litigation and Regulation (Legalese Ltd.) (2025)
- Recognized as a “Recommended Attorney” by The Legal 500 (2023-2025)
- Recognized by The Legal 500 Latin America Guide for Latin America: International – Compliance and Investigations (Legalese Ltd.) (2021-2022)
- Listed in Washington DC Super Lawyers (Thomson Reuters) (2013-2023, 2025)
- Team Named as a Washington, DC Litigation Department of the Year - White Collar Defense & Special Investigations by National Law Journal (ALM) (2022)
- American Bar Association, Criminal Litigation Committee, Securities Enforcement Subcommittee Chair (2012-2015)