For more than a century, Armstrong Teasdale has forged long-term relationships with clients large and small around the globe. Since our founding in 1901, we have grown to be one of the 200 largest law firms in the U.S.

Our lawyers work together to guide clients through virtually every challenge, from day-to-day operational decisions to some of the most complex legal matters.

See how our experience can benefit you.

By The Numbers

1901Year Founded
275Practicing Lawyers
6.0Mansfield Rule Certification
125Experienced Litigators
12Offices Nationwide
100Intellectual Property Professionals

For more than a century, Armstrong Teasdale has forged long-term relationships with clients large and small around the globe. Since our founding in 1901, we have grown to be one of the 200 largest law firms in the U.S.

Our lawyers work together to guide clients through virtually every challenge, from day-to-day operational decisions to some of the most complex legal matters.

See how our experience can benefit you.

Contact Us
  • Worldwide
  • Chicago, IL
  • Denver, CO
  • Edwardsville, IL
  • Jefferson City, MO
  • Kansas City, MO
  • Las Vegas, NV
  • Miami, FL
  • New York, NY
  • Philadelphia, PA
  • St. Louis, MO
  • Washington, D.C.
  • Wilmington, DE
Worldwide
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Chicago, IL
100 North Riverside Plaza
Suite 1500
Chicago, IL 60606-1520
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Chicago, Illinois
Denver, CO
4643 S. Ulster St.
Suite 800
Denver, CO 80237
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Denver, Colorado
Edwardsville, IL
115 N. Second St.
Edwardsville, IL 62025
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Edwardsville, Illinois
Jefferson City, MO
101 E. High St.
First Floor
Jefferson City, MO 65101
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Jefferson City, Missouri
Kansas City, MO
2345 Grand Blvd.
Suite 1500
Kansas City, MO 64108
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Kansas City, Missouri
Las Vegas, NV
7160 Rafael Rivera Way
Suite 320
Las Vegas, NV 89113
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Las Vegas, Nevada
Miami, FL
355 Alhambra Circle
Suite 1200
Coral Gables, FL 33134
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New York, NY
7 Times Square, 44th Floor
New York, NY 10036
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Philadelphia, PA
2005 Market Street
29th Floor, One Commerce Square
Philadelphia, PA 19103
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Philadelphia, Pennsylvania
St. Louis, MO
7700 Forsyth Blvd.
Suite 1800
St. Louis, MO 63105
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St. Louis, Missouri
Washington, D.C.
1717 Pennsylvania Avenue NW
Suite 400
Washington, DC 20006
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Wilmington, DE
1007 North Market Street
Wilmington, DE 19801
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Wilmington, Delaware