Mark Thiessen

Thiessen Law Firm

Houston, TX

19+ Years Experience

Licensed in 2 States

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About Mark

Mark Thiessen is a triple board-certified DWI, Criminal & Civil Trial Attorney. He is the only lawyer in America who is triple board certified in Criminal Law by the Texas Board of Legal Specialization, DUI Defense by the National College for DUI Defense, and DUI Law by the DUI Defense Lawyers Association, in addition to being a Board Certified Advocate in Criminal Trial Law by the NBTA Foundation. He is a 13-time Texas Super Lawyer, 9-time Top 100 Super Lawyer in Houston, and 6-time Top 100 Super Lawyer in Texas. He also holds the ACS-CHAL Forensic Lawyer-Scientist designation.

Licensed States

TX CO

Education

Bachelor’s of Business Administration in Marketing

Texas Christian University

South Texas College of Law

Study Abroad

International Criminal Law at the University of Malta

Study Abroad

BPP Law School in London, England

Study Abroad

University of Hawaii

Awards & Recognition

Super Lawyers

2024

Super Lawyers Top 100 in Houston

2024

Super Lawyers Top 100 in Texas

2024

TCDLA President’s Award

2021

Avvo Clients' Choice Award

2019

Professional Associations

DUI Defense Lawyers AssociationNational College for DUI DefenseNational Association of Criminal Defense LawyersAmerican Chemical SocietyTexas Criminal Defense Lawyers AssociationTexas Young Trial Lawyers AssociationHarris County Criminal Lawyers AssociationHouston Bar AssociationKrewe of Maximilian Galveston Mardi GrasHouston Livestock Show and RodeoBRA-021/Heights Brazilian Jiu JitsuSam Hoger MMA Muay ThaiThe College of the State Bar of TexasForensic Science CommissionLawline.com Faculty MemberStrathmore’s Who’s Who Lifetime MemberLawQA Legal AdvisorHarris County Public Defender’s Office FACT Program Mentor