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

1,066 Profile Views

Janie Kessler

Jan 30, 2026

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

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...

Dixie Pollich

Jan 30, 2026

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

William S. "Bill" Thomas is fantastic and very professional. Don't hesitate to hire them if you're in Missouri and need help. They really know their stuff and will go the extra mile to make sure you'r...

Orlando Kunze

Jan 30, 2026

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

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...

June Green

Jan 30, 2026

A huge weight off my shoulders thanks to the amazing work of William S. "Bill" Thomas

I wasn't sure who to call for my Construction Law problem, but I'm so glad I went with William S. "Bill" Thomas. They really listened to me and understood my situation. It was such a relief to have so...

Marshall Jacobson

Jan 30, 2026

So glad I called William S. "Bill" Thomas to handle my Construction Law case in St. Louis

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...