About Mark Ryan
Mark Ryan Thiessen practices personal injury law in Houston, Texas — He is the CEO of The Thiessen Law Office, which he established in 2011. The firm specializes in personal injury cases, but also handles criminal law, DUI & DWI cases, and cannabis and marijuana law. His office is located in a vibrant area of Houston — This lets the attorney serve clients across the region. He earned his J.D. from South Texas College of Law in 2003. Prior to that, he studied Environmental and Admiralty Law at the University of Hawai i at Manoa William S. Richardson School of Law in 2002.
His undergraduate education includes a B.B.A. in Marketing from Texas Christian University, completed in 2000. He began his legal career shortly after graduating law school, taking on various roles that have shaped his expertise in personal injury and criminal defense. Most of his cases involve personal injury claims arising from accidents and negligence. He also represents clients in criminal cases, focusing on DUI and DWI offenses. His experience in trial law began in 2006, and he has been involved in numerous high-stakes cases since then. Cases typically progress from initial consultations through litigation, with Mark providing guidance at every stage.
Mark holds board certifications in DUI Law, Criminal Defense, and DUI Defense. These certifications reflect his commitment to maintaining high standards in his practice. He is actively involved in various legal associations, serving as Vice President of the DUIDLA and holding leadership roles in the HCCLA and TCDLA. His participation in these organizations allows him to stay updated on legal trends and advocate for his clients effectively. Before founding his firm, Mark worked as a trial lawyer and worked in various legal settings. His background includes roles as a lawyer since 2003, which provided a strong foundation for his current practice. He has also been involved in legal education, sharing his knowledge with peers and aspiring lawyers.
Mark is admitted to practice in multiple jurisdictions, including Texas, Colorado, and the 5th Circuit, as well as the U.S. Supreme Court. This broad range of admissions allows him to represent clients in various legal matters. He is dedicated to providing effective legal representation and ensuring that his clients receive the justice they deserve.
