Zachary Langrehr is an associate in Armstrong Teasdale’s Corporate Services practice group. He concentrates his practice in the areas of general corporate and business representation and transactions, mergers and acquisitions, securities, entity formation and structuring, and corporate governance.

Zachary also has experience with litigation, real estate, estate planning and other matters. In addition, he has a background in accounting.


Prior to joining Armstrong Teasdale, Zachary was an associate in the St. Louis office of a national law firm.


  • Saint Louis University School of Law  (J.D., 2020)
    • Business Transactional Law Concentration
    • 1843 Scholar
    • Academic Excellence Award (highest class grade), IP and Global Entrepreneurship Seminar
    • Saint Louis University Law Journal, Editor (2019-2020); Staff Member (2018-2019)
    • Tax Club: President (Fall 2018-Spring 2019); 1L Representative (Fall 2017-Spring 2018)
  • Southern Illinois University  (B.S., summa cum laude, 2016)
    • Accounting
    • Howell Financial Services, Inc. Scholarship
    • Academic Scholarship for Freshmen
    • Beta Alpha Psi
    • SIU Accounting Society
    • Beta Gamma Sigma Honor Society


  • Missouri
  • Illinois

Professional Activities

  • The Missouri Bar
  • Illinois State Bar Association

Charitable and Civic Involvement

  • St. Louis Volunteer Lawyers and Accountants for the Arts (Pro Bono Attorney)
  • Land of Lincoln Legal Aid (Pro Bono Attorney)
  • Volunteer Income Tax Assistance (VITA) (Volunteer Tax Preparer)
  • Adopt-A-Spot Program (Volunteer)
Contact Us
  • Worldwide
  • Boston, MA
  • Chicago, IL
  • Denver, CO
  • Dublin, Ireland
  • Edwardsville, IL
  • Jefferson City, MO
  • Kansas City, MO
  • Las Vegas, NV
  • London, England
  • Miami, FL
  • New York, NY
  • Orange County, CA
  • Philadelphia, PA
  • Princeton, NJ
  • Salt Lake City, UT
  • St. Louis, MO
  • Washington, D.C.
  • Wilmington, DE
abstract image of world map
Boston, MA
800 Boylston St.
30th Floor
Boston, MA 02199
Google Maps
Boston, Massachusetts
Chicago, IL
100 North Riverside Plaza
Suite 1500
Chicago, IL 60606-1520
Google Maps
Chicago, Illinois
Denver, CO
4643 S. Ulster St.
Suite 800
Denver, CO 80237
Google Maps
Denver, Colorado
Dublin, Ireland
Fitzwilliam Hall, Fitzwilliam Place
Dublin 2, Ireland
Google Maps
Edwardsville, IL
115 N. Second St.
Edwardsville, IL 62025
Google Maps
Edwardsville, Illinois
Jefferson City, MO
101 E. High St.
First Floor
Jefferson City, MO 65101
Google Maps
Jefferson City, Missouri
Kansas City, MO
2345 Grand Blvd.
Suite 1500
Kansas City, MO 64108
Google Maps
Kansas City, Missouri
Las Vegas, NV
7160 Rafael Rivera Way
Suite 320
Las Vegas, NV 89113
Google Maps
Las Vegas, Nevada
London, England
Royal College of Surgeons of England
38-43 Lincoln’s Inn Fields
London, WC2A 3PE
Google Maps
Miami, FL
355 Alhambra Circle
Suite 1200
Coral Gables, FL 33134
Google Maps
Photo of Miami, Florida
New York, NY
7 Times Square, 44th Floor
New York, NY 10036
Google Maps
New York City skyline
Orange County, CA
19800 MacArthur Boulevard
Suite 300
Irvine, CA 92612
Google Maps
Philadelphia, PA
2005 Market Street
29th Floor, One Commerce Square
Philadelphia, PA 19103
Google Maps
Philadelphia, Pennsylvania
Princeton, NJ
100 Overlook Center
Second Floor
Princeton, NJ 08540
Google Maps
Princeton, New Jersey
Salt Lake City, UT
222 South Main St.
Suite 1830
Salt Lake City, UT 84101
Google Maps
Salt Lake City, Utah
St. Louis, MO
7700 Forsyth Blvd.
Suite 1800
St. Louis, MO 63105
Google Maps
St. Louis, Missouri
Washington, D.C.
1717 Pennsylvania Avenue NW
Suite 400
Washington, DC 20006
Google Maps
Photo of Washington, D.C. with the Capitol in the foreground and Washington Monument in the background.
Wilmington, DE
1007 North Market Street
Wilmington, DE 19801
Google Maps
Wilmington, Delaware