Atty. Thomas Edward Proost

Atty. Thomas Edward Proost

Thomas Edward Proost is a lawyer practicing mergers, acquisitions and divestitures, securities, corporate law. Thomas received a B.A. degree from University of Notre Dame in 1989, and has been licensed for 34 years.

St. Louis St. Louis 34 J. Erfahrung 34 year
Call (314) 860-1556 Book Appointment

Profile Summary

About Thomas Edward Proost at a glance

Thomas Edward Proost is a Partner based in St. Louis, Missouri, practicing at Thompson Coburn LLP. They have 34+ years of legal experience, licensed to practice since 1992. Their practice focuses on business, m&a, and securities. Admitted to practice in Missouri (1992) and Illinois (1993). Educated at Washington University (J.D., 1992) and University of Notre Dame (B.A., 1989). Recognitions include AV Preeminent. Serands clients in St. Louis, MO and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

Über uns

  • Thomas Edward Proost is a lawyer practicing mergers, acquisitions and divestitures, securities, corporate law
  • Thomas received a B.A. degree from University of Notre Dame in 1989, and has been licensed for 34 years
  • Thomas practices at Thompson Coburn LLP in St. Louis, MO

Practice Areas Explained

Thomas Edward Proost's Areas of Practice

Each practice area below reflects the types of cases Thomas Edward Proost 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.

Thomas Edward Proost is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Missouri →

Mergers & Acquisitions

Thomas Edward Proost is one of 49,731 m&a attorneys indexed nationally. Browse m&a attorneys in Missouri →

Securities Law

Thomas Edward Proost is one of 64,529 securities attorneys indexed nationally. Browse securities 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 St. Louis 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 St. Louis or all attorneys in Missouri.

Frequently Asked

Common questions about Thomas Edward Proost

Where is Thomas Edward Proost's law office located?
Thomas Edward Proost's law practice is located in St. Louis, Missouri. The firm is Thompson Coburn LLP. You can contact the office directly through this profile page.
What practice areas does Thomas Edward Proost handle?
Thomas Edward Proost focuses on business, m&a, securities. Each practice area listed reflects experience handling cases of that type in Missouri.
How long has Thomas Edward Proost practiced law?
Thomas Edward Proost has 34+ years of legal experience and has been licensed since 1992.
Where did Thomas Edward Proost go to law school?
Thomas Edward Proost earned their education at (J.D., 1992); (B.A., 1989).
How can I contact Thomas Edward Proost for a consultation?
You can contact Thomas Edward Proost 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 Thomas Edward Proost received?
Thomas Edward Proost's notable recognition includes: AV Preeminent.

Education

J.D.
Washington University
- 1992
B.A.
University of Notre Dame
- 1989

Awards

AV Preeminent

Bar Admissions

Missouri
Admitted: 1992
Illinois
Admitted: 1993

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