William S. "Bill" Thomas

William S. "Bill" Thomas

Construction Law Litigation - Construction
Recognized in Best Attorney USA since 2019

About William

William S. Thomas: Experienced Trial Lawyer in Construction Law, St. Louis

William S. 'Bill' Thomas is one of our firm's many experienced trial lawyers, with a diverse practice that emphasizes complex litigation. His areas of expertise include construction law and litigation - construction.

Practice Areas:

  • Civil Jury Trials
  • Complex Litigation
  • Litigation - Construction
  • Product Liability Litigation - Defendants
  • Professional Malpractice Law - Defendants
  • Medical Malpractice Law - Defendants
  • Litigation - Environmental
  • Civil Rights Litigation
  • Criminal Defense

Affiliations:

  • Firms: Gausnell, O'Keefe & Thomas LLC
  • Professional Organizations:
    • Lawyers Association of St. Louis (Former President)
    • DRI - Defense Research Institute (Product Liability Committee; Building Products and Power Tool Specialized Litigation Groups, Construction Committee, Professional Liability Committee; Design Professional Subcommittees)

Education:

  • B.A., University of Notre Dame (1990)
  • J.D., Saint Louis University School of Law (1995)

Bar Admissions:

  • Missouri, United States (1995)

Awards:

  • Limited to the Awards provided in the original bio: 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)

Recognized Since:

Recognized in Best Attorney USA since 2019.

City:

St. Louis, Missouri, United States

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Reviews

4.6 / 5

38 Reviews

1,072 Profile Views

S

Sylvester Kub

Jan 30, 2026

A very good experience overall with the entire team at William S. "Bill" Thomas's legal practice

I appreciate how William S. "Bill" Thomas handled my case. No fluff, just straight to the point and very effective representation for my Construction Law matter. They are obviously very experienced an...

J

Jana Will

Jan 30, 2026

Highly recommend William S. "Bill" Thomas for anyone needing expert Construction Law help in Missouri

If you're looking for someone who actually cares and will fight for you, go to William S. "Bill" Thomas. They helped me out big time with my Construction Law issue and kept me informed at every step o...

A

Amy Strosin

Jan 30, 2026

Five stars for the incredible team at William S. "Bill" Thomas in St. Louis - they are amazing

If you need a Construction Law lawyer, William S. "Bill" Thomas is the one to call. Great job and very responsive team. They kept me in the loop and always had time to explain the details of my case....