Mark Jensen

King & Spalding LLP

$ $$$

Pennsylvania Avenue Northwest 1700
Washington 20006 DC US

Mark A. Jensen is Managing Partner of King & Spalding’s Washington, D.C. office. He specializes in high-profile investigations, white-collar litigation for companies and individuals, regulatory enforcement actions, internal reviews and compliance counseling.

As a partner in our Special Matters and Investigations practice, Mark’s practice has been nationally acclaimed, and he has been widely recognized for the positive results he obtains for an array of clients in criminal and civil cases, including governmental investigations, prosecutions and False Claims Act civil litigation.

Law360 has described him as “one of the most sought-after corporate defenders in the country” and the Legal 500 as “an extremely accomplished lawyer.”

Mark defends leading companies and senior executives in litigation in federal and state courts, as well as in prosecutions and investigations by U.S. Attorneys, multiple divisions of the U.S. Department of Justice, the Securities and Exchange Commission, Food and Drug Administration, Environmental Protection Agency, National Oceanic and Atmospheric Administration, and Congress.

Mark’s litigation experience includes criminal and civil issues relating to pharmaceuticals; biotechnology and medical devices; Federal Corrupt Practices Act matters; tax and accounting-related fraud; environmental and wildlife prosecutions; and federal contracting and procurement fraud.

In addition to his current role as Managing Partner, Mark has served in numerous other firm leadership roles. Elected by his partners to the firm’s managing Policy Committee, he also has served on the firm-wide Lateral Partner Committee and Performance Management and Compensation Committee, and previously was the Hiring Partner and Deputy Managing Partner for the D.C. office.


  • J.D., Harvard University
  • B.A., Indiana University


  • District of Columbia
  • Illinois
  • U.S. Court of Appeals for the Seventh Circuit
  • U.S. District Court for the Northern District of Illinois
  • U.S. District Court for the Southern District of Indiana


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Pennsylvania Avenue Northwest 1700
Washington 20006 DC US
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Lina Stillman

Broadway 42
New York 10006 NY US