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

1,067 Profile Views

Emanuel Rohan

Jan 30, 2026

The absolute best in St. Louis for Construction Law - and I mean that from the bottom of my heart

I was really stressed about my case in St. Louis, but William S. "Bill" Thomas made everything so smooth and stress-free. Seriously, the best decision I've made lately was hiring them. They handled ev...

Andres Friesen

Jan 30, 2026

Great people who truly care at William S. "Bill" Thomas - the best legal team in Missouri

I've already told all my friends and family about William S. "Bill" Thomas. If you need Construction Law help in Missouri, they're the ones to see without any doubt. They are local experts who really...

Lydia Lueilwitz

Jan 30, 2026

Simply amazing representation from William S. "Bill" Thomas's office during my recent legal matter

I didn't think I'd find such a good lawyer in Missouri, but here we are and I am thoroughly impressed. William S. "Bill" Thomas is just awesome and exceeded all my expectations. No complaints at all!...

Terrance Ryan

Jan 30, 2026

Excellent legal representation provided by William S. "Bill" Thomas for my Construction Law case

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....

Ada McClure

Jan 30, 2026

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

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...