Kroll Experts

Mark Ehlers


North America

Kroll, a division of Duff & Phelps
2000 Market Street, Suite 2700
Philadelphia, PA 19103

Mark Ehlers is a Managing Director with Kroll’s Investigations and Disputes practice and Head of the Philadelphia office. He manages a full range of Kroll’s services, including fraud investigations, litigation support, due diligence investigations, and corporate ethics and compliance monitoring.

Mark has more than 30 years of combined legal, financial, and investigative experience in the public and private sectors, working on matters including corporate fraud, discrimination and harassment in the workplace, security and sexual violence on campuses, economic crimes, and alleged ethical violations.

Prior to joining Kroll, Mark served for 18 years as an Assistant United States Attorney, first in the District of Columbia, where he was part of a select group of prosecutors in the homicide and sex offense units, and later in the Eastern District of Pennsylvania, where he investigated and prosecuted a wide range of criminal offenses, including narcotics trafficking, racketeering (RICO), money laundering, corporate fraud, identity theft, tax violations, and numerous other economic and violent crimes. For eight years, Mark was part of the Organized Crime Strike Force in Philadelphia, where he oversaw the investigation and prosecution of affiliates of Russian, Asian, and Italian criminal organizations. Prior to that, Mark was a private attorney in Washington, D.C., where he handled cases involving commercial, antitrust, trademark infringement, securities fraud, and environmental disputes.

Professional Experience

Corporate Internal Investigations

Mark has managed and conducted numerous internal investigations for corporations, governments, universities, and non-profit organizations, investigating legal and ethical violations, financial improprieties, thefts of company assets, damage to company property, workplace misconduct, and complex financial fraud.

Public Sector Investigations and Reviews

Mark has conducted and managed independent reviews of public sector clients including state and local police departments, regulatory agencies, and public universities. In recent years, Mark investigated the University of Cincinnati Police Department following the shooting of an unarmed motorist in July 2015; reviewed admissions practices at the University of Texas at Austin following allegations of undue influence in the admissions process in 2014; and reviewed the North Carolina Highway Patrol’s hiring and selection process, ethical training, and supervisory training protocols following media reports of trooper misconduct in 2008. Kroll’s findings and recommendations in each of these investigations were made public.

Workplace Investigations

Mark has conducted numerous investigations involving allegations of discrimination and harassment in the workplace. He also has lectured on how to properly investigate claims alleging discrimination and a hostile work environment, as well as sexual assault claims in the college and university (Title IX) context. Additionally, Mark has investigated death threats against company executives and bomb threats against company facilities, and has conducted risk assessments for workplace violence and crisis management situations.

Due Diligence Investigations

Mark’s due diligence investigations have aided numerous corporate clients in capitalizing on opportunities and mitigating risk with financial transactions, foreign investments and joint ventures, and board nominations.

Litigation Support and Asset Searches

Mark has provided critical fact-finding in support of legal action, assisted in identifying hidden assets to satisfy judgments, and helped clients assess and address problems before they hit the press or went public.


Education & Certifications

  • J.D., George Washington University, with Honors
  • B.A., magna cum laude, Wittenberg University

Awards & Recognition

  • Department of Justice Special Achievement Awards (1992, 1993, 1995)
  • DEA Special Recognition Awards (2000, 2002)
  • FBI Special Recognition Awards (2003, 2006)
  • IRS Special Recognition and Exceptional Service Awards (2006)
  • Letter of Commendation from
    FBI Director Robert S. Mueller, III (July 20, 2006)