William S. "Bill" Thomas

4.6 (38 reviews )

St. Louis Missouri United States

Construction Law Litigation - Construction

Recognized in Best Attorney USA since 2019

314-257-9800 Website

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

Practice Areas

Construction Law

Litigation - Construction

Education

Saint Louis University

University of Notre Dame

Awards & Recognition

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Reviews

4.6 / 5

38 Reviews

1,069 Profile Views

Leona Braun

Jan 30, 2026

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

Best lawyer for Construction Law in St. Louis. Period. I've seen others, but William S. "Bill" Thomas is on another level. They truly care about their clients and work hard to get the best results. I...

Della Runolfsdottir

Jan 30, 2026

Really helpful and compassionate service from everyone at William S. "Bill" Thomas's firm

Everyone at William S. "Bill" Thomas's office in St. Louis was so nice and helpful. They made a tough situation a lot easier to deal with by being so patient and explaining everything clearly. I never...

Darnell Collier

Jan 30, 2026

Many thanks to William S. "Bill" Thomas for the hard work and dedication to my legal matter

Super helpful and professional staff at William S. "Bill" Thomas's office. Thanks again for everything you did for me! It was a long journey, but you made it much easier with your constant support and...

Pearl Howe

Jan 30, 2026

William S. "Bill" Thomas did a great job handling my complex Construction Law case from start to finish

It's hard finding a reliable lawyer these days, but William S. "Bill" Thomas in St. Louis is definitely one of the good ones. Would use them again if needed without hesitation. They are professional,...

Daisy Murray

Jan 30, 2026

Absolutely Great! I couldn't be happier with the service from William S. "Bill" Thomas

Really glad I found William S. "Bill" Thomas for my case. They were a huge help and made everything understandable. I was very impressed with their knowledge and how they handled the opposition. If yo...