Free Consultation713.864.9000

Mark Thiessen

DWI, Criminal & Civil Trial Attorney

Texas Super Lawyer by Thomson Reuters

2013-Present

Texas Super Lawyer by Thomson Reuters

Top 100 Super Lawyers in Texas by Thompson Reuters

2017-2019
The only DWI Attorney selected

Top 100 Super Lawyers in Texas by Thompson Reuters

Top 100 Super Lawyers in Houston by Thompson Reuters

2017-2019
The only DWI Attorney selected

Top 100 Super Lawyers in Houston by Thompson Reuters

AVVO Client’s Choice Award

2019

AVVO 2019 Client’s Choice Award

Board Certified in DUI Defense by DUI Defense Lawyers Association

2018

Board Certified in DUI Defense by DUI Defense Lawyers Association

Texas Board of Legal Specialization in Criminal Defense

2018

Texas Board of Legal Specialization in Criminal Defense

DUI Defense Lawyers Association Secretary

2018

DUI Defense Lawyers Association Secretary

AV Rated as Preeminent Attorney by Martindale-Hubbell

2014-Present

AV Rated as Preeminent Attorney by Martindale-Hubbell

ACS-CHAL Forensic Lawyer-Scientist Graduate

2014-Lifetime

ACS-CHAL Forensic Lawyer-Scientist Graduate

The National Trial Lawyers: Top 100 Trial Lawyers

2014-Present

The National Trial Lawyers: Top 100 Trial Lawyers

Charter Member & Board of Directors DUI Defense Lawyers Association

2013-Present

Charter Member & Board of Directors DUI Defense Lawyers Association

AVVO Rated 10/10: Superb

2010-Present

AVVO Rated 10/10: Superb

Axion Laboratories Forensic Chromatography Course Graduate

2012-2014

Axion Laboratories Forensic Chromatography Course Graduate

Lawline.com Faculty Member

2011-Present

Lawline.com Faculty Member

Strathmore’s Who’s Who Lifetime Member

Lifetime

Strathmore’s Who’s Who Lifetime Member

LawQA Legal Advisor

2010-Present

LawQA Legal Advisor

Trial Lawyers College: Closing Argument

May 2013

Trial Lawyers College: Closing Argument

Lawline.com, Furthered 40 Attorneys in the Nation

2012

Lawline.com, Furthered 40 Attorneys in the Nation

Trial Lawyers College: Voir Dire Workshop

April 2011

Trial Lawyers College: Voir Dire Workshop

Trial Lawyers College: Psychodrama Workshop

June 2010

Trial Lawyers College: Psychodrama Workshop

State Honors

TCDLA DWI Trial Warrior

2016-Present

TCDLA DWI Trial Warrior

TCDLA Associate Board Member

2014-2016

TCDLA Associate Board Member

TCDLA Board Member

2016-Present

TCDLA Board Member

American Institute of DUI/DWI Attorneys “10 Best” Attorneys for the State of Texas

2014

American Institute of DUI/DWI Attorneys “10 Best”  Attorneys for the State of Texas

TCDLA: DWI Committee Chair

2013-2018

TCDLA: DWI Committee Chair

TCDLA: Young Attorneys Co-Chair

2011-2012

TCDLA: Young Attorneys Co-Chair

The College of the State Bar of Texas

2011-Present

The College of the State Bar of Texas

Texas Monthly: Top Young Lawyers in Texas – Rising Star

2011

Texas Monthly: Top Young Lawyers in Texas – Rising Star

Forensic Science Commission

2015

Forensic Science Commission

Local Honors

HCCLA President-Elect

2020

2020 HCCLA President-Elect

HCCLA President-Elect

2019

2019 HCCLA President-Elect

Vice President of HCCLA

2018

Vice President of HCCLA

H Texas Magazine: Houston’s Top Lawyer for Criminal Defense

2014-Present

H Texas Magazine: Houston’s Top Lawyer for Criminal Defense

Houstonia Magazine Top Lawyers in Houston – Criminal Defense

2015-Present

Houstonia Magazine Top Lawyers in Houston – Criminal Defense

HCCLA: Elected Board of Directors

2012-Present

HCCLA: Elected Board of Directors

HCCLA: Unsung Hero Award

2012

HCCLA: Unsung Hero Award

HCCLA: Lead Counsel for Second Chair Program

2010-2015

HCCLA: Lead Counsel for Second Chair Program

King XXVI Krewe of Maximilian – Galveston Mardi Gras

2013

King XXVI Krewe of Maximilian – Galveston Mardi Gras

Harris County Public Defender’s Office FACT Program Mentor

2013-2015

Harris County Public Defender’s Office FACT Program Mentor

Organizations & Committees

aggressive defense