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William S. "Bill" Thomas

Trusted construction attorney serving St Louis.

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William S. "Bill" Thomas is an attorney based in St. Louis, MISSOURI. The practice focuses on Construction. Currently practicing at Gausnell, O'Keefe & Thomas LLC.

Based in
St. Louis, MISSOURI
Experience
attorney
Known for
Construction
  • Handles Construction matters from St. Louis, MISSOURI.
  • Recognized with Lawyer of the Year — Construction Law (St. Louis) (2025).

About William S. "Bill" Thomas: William S. "Bill" Thomas is an attorney based in St. Louis, MISSOURI. The practice focuses on Construction. Currently practicing at Gausnell, O'Keefe & Thomas LLC.

Areas of practice

Practice focus

William S. "Bill" Thomas represents clients in St Louis, Missouri across the following areas of law. Each area links to other verified attorneys with the same focus.

Biography

About William S. "Bill" Thomas

William S. Thomas is one of the firm’s many experienced trial lawyers. His practice is diverse, with an emphasis in complex litigation. He has tried cases in a number of difficult venues, from the City of St. Louis, Missouri, to Madison and St. Clair Counties, in Illinois, and Federal Court in East St. Louis and St. Louis. He was lead trial counsel in one of the longest civil jury trials in St. Louis County history, which lasted 100 trial days. In addition to his trial practice, Bill is actively involved in a number of professional organizations. He is a former president of the Lawyers Association of St. Louis, the local trial bar. He is active in the Defense Research Institute, (DRI), serving on its Products Liability Committee, and that committee’s Building Products and Power Tool Specialized Litigation Groups, where he has spoken at DRI conferences. He is active in the DRI’s Construction Committee, and Professional Liability Committee, where he serves on their Design Professional Subcommittees. He has authored a number of articles for the DRI’s monthly publication, For the Defense. He is an extensive author and speaker on a number of topics from products liability to construction law issues.

Credentials

Education

  • Saint Louis University

    JD · 1994

  • University of Notre Dame

Jurisdictions

Bar admissions

  • Illinois, Illinois

    ACTIVE

  • Missouri, Missouri

    ACTIVE

Recognition

Awards & honors

  • Lawyer of the Year — Construction Law (St. Louis)

    2025

  • Lawyer of the Year — Construction Law (St. Louis)

    2023

  • Lawyer of the Year — Litigation - Construction (St. Louis)

    2022

  • Best Lawyers in America — Construction Law

    2026

  • Best Lawyers in America — Litigation - Construction

    2026

  • Best Lawyers in America — Additional Areas of Practice:

    2026

  • Best Lawyers in America — Litigation - Environmental

    2026

  • Best Lawyers in America — Medical Malpractice Law - Defendants

    2026

  • Best Lawyers in America — Product Liability Litigation - Defendants

    2026

  • Best Lawyers in America — Professional Malpractice Law - Defendants

    2026

Locations

Office locations

Main office

Gausnell, O'Keefe & Thomas LLC

1717 Park Avenue

St. Louis, Missouri 63104

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Client reviews

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Frequently asked

Common questions

  • What areas of law does William S. "Bill" Thomas practice?

    William S. "Bill" Thomas focuses on Construction.

  • Where is William S. "Bill" Thomas located?

    William S. "Bill" Thomas primarily serves clients in St Louis, Missouri, with an office at 1717 Park Avenue.

  • Is William S. "Bill" Thomas a verified attorney?

    William S. "Bill" Thomas's profile is listed but has not yet been claimed by the attorney. Verification status is pending.

  • How can I schedule a consultation with William S. "Bill" Thomas?

    You can book a consultation through LawyersListed directly from this page. Initial outreach can also be made by phone at 314-257-9800.