Matthieu Belanger-Coast

Attorney at Thomas J. Henry Law’s San Antonio Office

Eastern North Carolina native Mr. Matthieu Belanger-Coast brings a unique blend of legal expertise and technical acumen to TJH. He holds a Juris Doctor from Washington & Lee University School of Law and a Master’s in Biomedical Engineering from the University of Texas Health Science Center.

Early on in his legal career, Mr. Belanger-Coast began working at a variety of prestigious law firms. During this time he did in-depth research for judges and prominent attorneys. This experience honed his analytical skills, later utilized in assisting major UK government agencies and courts with complex legal software challenges.

Returning to Texas, Mr. Belanger-Coast shifted his focus to property tax litigation, where he crafted winning strategies for both individuals and corporations. Now at TJH, he remains dedicated to achieving exceptional results for his clients through diligent representation.

But Mr. Belanger-Coast’s most impactful work transcends case wins. Securing parole for a wrongly incarcerated individual through the Virginia Capital Case Clearinghouse solidified his unwavering commitment to making a positive difference.

Beyond his work as an attorney, Mr. Belanger-Coast enjoys embracing new challenges, spending quality time with his wife, and indulging in his unique hobbies such as analyzing data for neurological research and reading court cases for fun.



  • State Bar of Texas


  • Dallas Bar Association 
  • American Bar Association


  • Washington & Lee University School of Law, Lexington, VA (J.D.)
    • Patent Litigation Practicum
    • Intellectual Property Practicum
    • Business Immersion
    • E-Commerce Practicum
  • University of Texas Health Science Center, San Antonio, Texas (M.S.)
    • Publication: Bugay, et al. “Effects of sublethal organophosphate toxicity and anti-cholinergics on EEG and respiratory mechanics in mice,” Frontiers in Neuroscience, May 2, 2022.
    • Publication: Belanger-Coast, et al. “Dequalinium chloride is an antagonist of ɑ7 nicotinic acetylcholine recepters,” European Journal of Pharmacology, May 4, 2022.
  • Randolph College, Lynchburg, VA (B.S.)
    • Honors: Presidential Scholar, Outstanding First Year in Physics
    • Publication: Semple, et al. “Sociosexual and Communication Deficits after Traumatic Injury to the Developing Murine Brain,” PloSONE, August 8, 2014.
    • Thesis: “The Effect of Innate Immunity on Rejection in Allograft Organ Transplantation.”
    • Thesis: “Downregulation of KV4.2 Ion Channels Can Rescue Some Phenotypic Aspects of Fragile X Mediated Autism Spectrum Disorders.
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