Nicholas Klein has significant experience advising clients on international trade and national security matters, including national security reviews before the Committee on Foreign Investment in the United States (CFIUS), U.S. export controls, economic sanctions, and mitigation of foreign ownership, control or influence (FOCI) under industrial security regulations.

Nick has extensive experience advising U.S. companies and foreign investors in understanding and allocating CFIUS risk, determining whether filings are mandatory or advisable, and navigating the CFIUS process. He represents clients in the aerospace and defense, telecommunications, financial services, manufacturing, software, professional services, cybersecurity, life sciences, biotechnology, energy, and emerging technology sectors, among many others.

Nick has been named to Foreign Investment Watch’s Top Advisors List for 2022, which recognizes "top lawyers who provide legal advice concerning national security reviews of foreign investments in the US and abroad."

Nick regularly counsels clients on complex compliance, licensing, and enforcement matters related to the International Traffic in Arms Regulations (ITAR), Export Administration Regulations (EAR), the embargoes and sanctions programs administered by the Office of Foreign Assets Control (OFAC), federal firearms regulations, nuclear-related export controls, and anti-boycott regulations. He is experienced advising on compliance with the Foreign Corrupt Practices Act (FCPA) and other anti-bribery and anti-corruption laws, and anti-money laundering/anti-terrorist financing compliance.

He has considerable experience designing and implementing compliance programs and corporate policies regarding U.S. export controls and economic sanctions laws. Nick also assists companies with trade compliance assessments and internal investigations, voluntary disclosures, licensing, and export classification.

While in law school, Nick clerked at the Office of the United States Attorney and worked for Hon. Timothy M. Tymkovich and Hon. Neil M. Gorsuch, both of the U.S. Court of Appeals for the Tenth Circuit. Prior to his legal career, Nick was an officer and paratrooper in the United States Army, serving as a U.S. Army Ranger and an airborne jumpmaster. 

Nick maintains an active pro bono practice advocating on behalf of military veterans.