What departments does O'Brien Law Firm have?

O'Brien Law Firm has employees across 3 departments including Legal, Administrative, Community & Social Services.

What is the largest department at O'Brien Law Firm?

The largest department at O'Brien Law Firm is Legal with 7 employees.

Where are O'Brien Law Firm employees located globally?

O'Brien Law Firm has employees across 1 continents and 2 countries including United States Of America, Saint Kitts And Nevis.

How has O'Brien Law Firm's team size changed over time?

O'Brien Law Firm's team has grown from approximately 14 to 23 employees based on available data.

O'Brien Law Firm Employee Directory

Legal ServicesMissouri, United States51-200 Employees

O’Brien Law Firm, a Missouri-based law practice established in 2000, focuses on representing individuals affected by mesothelioma and asbestos-related diseases. The firm has built its practice around investigating, prosecuting, and resolving asbestos civil cases and bankruptcy trust claims, while fostering ethical and compassionate client relationships. Located in St. Louis, the firm has positioned itself as a leading practitioner in asbestos-focused litigation in the Midwest and has expanded its expertise to include workers’ compensation claims for Missouri employees diagnosed with mesothelioma or asbestosis following legislative changes in 2013. In 2020, the firm broadened its practice to handle sexual abuse, criminal injury, serious injury, and wrongful death cases, continuing its work on behalf of clients harmed by the misconduct of others.

O'Brien Law Firm Global Highlights

North America
34

United States Of America
33
Saint Kitts And Nevis
1

O'Brien Law Firm's Leadership

B. B.
Partner
Mobile Phone
Email
C. O.
Owner And Litigation Attorney
Mobile Phone
Email
A. O.
Managing Partner
Mobile Phone
Email
W. O.
Partner
Mobile Phone
Email
J. M. O.
Owner
Mobile Phone
Email
K. O.
Partner
Mobile Phone
Email
A. R.
Settlement Department Manager
Mobile Phone
Email
A. H.
Office Manager
Mobile Phone
Email

O'Brien Law Firm Employee Metrics

100%

50%

0%

2026

2025

Legal
Accounting
Administrative
Community & Social Services
Analytics
Other

Contact profiles from O'Brien Law Firm

Name

Title

Contact Info

Location

Last Update

B. B.
Partner
Mobile Phone
Email
United StatesMissouri
May 29, 2026
C. O.
Owner And Litigation Attorney
Mobile Phone
Email
Feb 16, 2026
A. O.
Managing Partner
Mobile Phone
Email
United StatesMissouri
Mar 24, 2026
W. O.
Partner
Mobile Phone
Email
United StatesConnecticut
Jun 02, 2026
J. M. O.
Owner
Mobile Phone
Email
UNITED STATES
May 08, 2024
K. O.
Partner
Mobile Phone
Email
United StatesConnecticut
Apr 14, 2026
A. R.
Settlement Department Manager
Mobile Phone
Email
United StatesMissouri
Oct 20, 2025
A. H.
Office Manager
Mobile Phone
Email
United StatesPennsylvania
Oct 21, 2024
T. O.
Principal Lawyer
Mobile Phone
Email
Nov 12, 2025
L. B.
Attorney
Mobile Phone
Email
United StatesMissouri
Mar 25, 2026

Frequently Asked Questions

What is O'Brien Law Firm known for?

O'Brien Law Firm was founded in 2000 operates in the Legal Services industry. The company's main headquarters is located in 815 Geyer Avenue St. Louis, Missouri 63104 United States. Explore O'Brien Law Firm's company overview page for more information.

What is O'Brien Law Firm's most common email format?

O'Brien Law Firm employees' email format typically follows the pattern of . Trying to find reliable and up-to-date employee contact data? Find more O'Brien Law Firm email formats with LeadIQ.

How many employees does O'Brien Law Firm have currently?

O'Brien Law Firm has approximately 73 employees as of June 2026. These team members are located across 1 continents, including North America.

Who are O'Brien Law Firm's key employees and leadership?

As of June 2026, O'Brien Law Firm's key employees include:

Partner: B. B.
Owner And Litigation Attorney: C. O.
Managing Partner: A. O.
Partner: W. O.
Owner: J. M. O.

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O'Brien Law Firm Employee Directory

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