Corey is a Partner in the Chicago office of Grant Thornton LLP in the Forensic Advisory Services practice. Prior to joining Grant Thornton LLP, Corey was a Partner in the forensic and dispute services practice of another global accounting firm and a Managing Director in the Chicago office of a boutique global forensic and dispute consulting firm. Corey began his career in the audit practice of another global accounting firm in its Milwaukee office.
Corey specializes in client matters involving accounting and financial irregularities, complex securities litigation specific to allegations of accounting and financial improprieties, accountant’s liability litigation, U.S. Securities and Exchange Commission and other regulatory inquiries and investigations, anti-corruption and U.S. Foreign Corrupt Practices Act compliance consulting services, trade sanctions compliance, and the provision of consulting services in the areas of forensic accounting, litigation support, and fraud risk management for public and private companies, both domestically and internationally.
Corey has led many investigations domestically, as well as internationally including matters in Canada, Mexico, Brazil, Venezuela, Chile, Israel, Germany, Argentina, Taiwan, South Korea, China, Pakistan, the Netherlands, Hong Kong, Switzerland, Hungary, United Kingdom, India, Cyprus, and the United Arab Emirates, as well as numerous states within the United States. Mr. Martens has worked with clients across many industries and industry sectors, including banking, insurance, investment management, aerospace and defense, automotive, healthcare, consumer goods, construction, energy and resources, and retail among others.
As a consultant on a wide variety of financial investigations and compliance issues, Mr. Martens also has extensive experience assisting clients in the prevention and detection of regulatory violations. Such experience includes the implementation, enhancement, testing, and investigation of alleged violations of regulatory compliance controls related to anti-corruption, trade sanctions, and anti-fraud compliance programs.