Atty. William B. Langenbacher

Atty. William B. Langenbacher

William B. Langenbacher is a lawyer practicing litigation, securities law, business law and 2 other areas of law.

Clayton Clayton 34 yrs experience 34 year
Call (636) 442-5230 Book Appointment

Profile Summary

About William B. Langenbacher at a glance

William B. Langenbacher is a Member based in Clayton, Missouri, practicing at William B. Langenbacher, Esq.. They have 34+ years of legal experience, licensed to practice since 1992. Their practice focuses on business, securities, and litigation. Admitted to practice in Missouri (1992) and Illinois (1992). Educated at Washington University (J.D., 1991) and St. Louis University (M.S. University, 1970). Recognitions include AV Preeminent. Serands clients in Clayton, MO and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • William B. Langenbacher is a lawyer practicing litigation, securities law, business law and 2 other areas of law
  • William received a M.S. degree from St. Louis University in 1970, and has been licensed for 34 years
  • William practices at William B. Langenbacher, Esq. in Clayton, MO

Practice Areas Explained

William B. Langenbacher's Areas of Practice

Each practice area below reflects the types of cases William B. Langenbacher handles, with a brief overview of what that area of law covers.

Business & Corporate Law

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

William B. Langenbacher is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Missouri →

Securities Law

William B. Langenbacher is one of 64,529 securities attorneys indexed nationally. Browse securities attorneys in Missouri →

Civil Litigation

Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.

William B. Langenbacher is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in Missouri →

Jurisdictional Context

Why local counsel matters in Missouri

Practicing law in Missouri. Legal matters in Missouri are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Clayton are typically filed in the local municipal court or the appropriate Missouri state district court, depending on subject matter and amount in controversy. An attorney licensed in Missouri brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Missouri courts without local counsel or pro hac vice admission.

Looking for additional Missouri attorneys? Browse all attorneys in Clayton or all attorneys in Missouri.

Frequently Asked

Common questions about William B. Langenbacher

Where is William B. Langenbacher's law office located?
William B. Langenbacher's law practice is located in Clayton, Missouri. The firm is William B. Langenbacher, Esq.. You can contact the office directly through this profile page.
What practice areas does William B. Langenbacher handle?
William B. Langenbacher focuses on business, securities, litigation. Each practice area listed reflects experience handling cases of that type in Missouri.
How long has William B. Langenbacher practiced law?
William B. Langenbacher has 34+ years of legal experience and has been licensed since 1992.
Where did William B. Langenbacher go to law school?
William B. Langenbacher earned their education at (J.D., 1991); (M.S. University, 1970).
How can I contact William B. Langenbacher for a consultation?
You can contact William B. Langenbacher directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.
What awards or recognition has William B. Langenbacher received?
William B. Langenbacher's notable recognition includes: AV Preeminent.

Education

J.D.
Washington University
- 1991
M.S. University
St. Louis University
- 1970

Awards

AV Preeminent

Bar Admissions

Missouri
Admitted: 1992
Illinois
Admitted: 1992

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