Matthew Nielsen focuses on white collar matters and civil trials in Texas and across the country. Matthew represents companies, boards and individuals in the investigation and defense of regulatory, civil, and criminal matters involving federal and state securities laws, accounting and disclosure issues, healthcare fraud, anti-corruption laws, US export controls and sanctions regulations and whistleblower complaints. He has significant experience representing clients before federal and state law enforcement and investigative agencies, including the Securities and Exchange Commission (SEC), Department of Justice (DOJ), Financial Industry Regulatory Agency (FINRA), Bureau of Industry and Security (BIS), Department of the Treasury and other federal and state agencies. Drawing on over 25 years of experience defending clients in government investigations and litigation, Matthew assists management and directors in internal investigations; addressing sensitive governance issues; and establishing and evaluating compliance programs to help deter and detect problems early. 

Matthew also represents clients in high-stakes litigation. He brings his substantial trial experience to represent clients across a variety of sectors, including energy, healthcare, real estate and financial services, in state and federal courts, administrative proceedings and arbitrations. Matthew has deep experience representing clients in class actions, shareholder derivative actions, government enforcement suits, complex commercial matters and real estate disputes.