About
Mark A. Jensen is a Partner, Managing Partner of King & Spalding LLP’s Washington, DC office, and Co-Chair of its Special Matters and Government Investigations practice. His work focuses on white-collar litigation, government investigations, False Claims Act litigation, regulatory enforcement, internal investigations, health care law, and compliance counseling. He represents companies and senior executives facing complex criminal and civil matters before courts, government agencies, and Congress.
Mark earned his J.D., cum laude, from Harvard Law School. He received his B.A., summa cum laude, from Indiana University-Bloomington, where he was elected to Phi Beta Kappa. His academic foundation supports a practice involving sophisticated litigation, investigations, regulatory matters, and corporate compliance.
Mark represents clients in investigations and enforcement matters involving the Department of Justice, Securities and Exchange Commission, Food and Drug Administration, and other government agencies. His experience covers pharmaceuticals, biotechnology, medical devices, laboratory testing, environmental matters, government contracting, and financial issues. He handles Foreign Corrupt Practices Act matters, tax and accounting fraud allegations, internal reviews, and corporate compliance programs.
Mark A. Jensen has earned national recognition for his white-collar and government investigations practice. Legal 500 U.S. has recommended him for white-collar criminal defense, while Benchmark Litigation has recognized him as a Litigation Star. LMG Life Sciences has named him a Life Sciences Star for White Collar/Government Investigations. His experience includes defending companies and executives in significant investigations, prosecutions, regulatory proceedings, and False Claims Act disputes.
Law Office Affiliations
- Managing Partner, King & Spalding LLP
- Member, District of Columbia Bar
Licensed State
- District of Columbia
Education
- Harvard Law School
Juris Doctor (JD) - Indiana University
Bachelor of Arts (BA)
Awards & Badges

- Advertising
- Antitrust & Trade Law
- Business Litigation
- Mergers & Acquisitions
- Science & Technology
- Securities Litigation
- Tax
- White Collar Crime
- Government Contracts
- Government Finance
- Intellectual Property Litigation
- Appeals
- Litigation
- Medical Devices & Dangerous Drugs
- Products Liability
- Whistleblower




