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O'Brien Law Firm Employee Directory

Legal ServicesMissouri, United States51-200 Employees

O'Brien Law Firm has about 71 employees, all of them in North America. By country, the largest groups are United States Of America (96%) and Saint Kitts And Nevis (4%). Legal and Community & Social Services make up over half of the profiles with a known department. O'Brien Law Firm's workforce spans 4 departments. O'Brien Law Firm's workforce grew 93% between January 2026 and November 2026.

Find O'Brien Law Firm employees' phone numbers or email addresses

O'Brien Law Firm Global Highlights

Location
Employees

North America
28

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  • United States Of America
    27
  • Saint Kitts And Nevis
    1

O'Brien Law Firm's Leadership

  • Owner And Litigation Attorney at O'Brien Law Firm
    C. O.
    Owner And Litigation Attorney
    Mobile Phone
  • Principal Lawyer at O'Brien Law Firm
    T. O.
    Principal Lawyer
    Mobile Phone
  • Paralegal at O'Brien Law Firm
    A. R.
    Paralegal
    Mobile Phone
  • Investigator at O'Brien Law Firm
    K. B.
    Investigator
    Mobile Phone

O'Brien Law Firm Employee Metrics

100%
50%
0%
2026
2025
  • Legal
  • Accounting
  • Administrative
  • Community & Social Services
  • Other

Legal is the largest department at 83% of profiles with a known department, up from 75% in January 2026, followed by Community & Social Services (9%, up from 8%) and Accounting (4%, down from 8%).

Contact profiles from O'Brien Law Firm

Name
Title
Contact
Location
Last Update
  • Owner And Litigation Attorney at O'Brien Law Firm
    C. O.
    Owner And Litigation Attorney
    Mobile Phone
    Oct 16, 2026
  • Principal Lawyer at O'Brien Law Firm
    T. O.
    Principal Lawyer
    Mobile Phone
    Nov 12, 2025
  • Paralegal at O'Brien Law Firm
    A. R.
    Paralegal
    Mobile Phone
    Jun 01, 2026
  • Investigator at O'Brien Law Firm
    K. B.
    Investigator
    Mobile Phone
    Oct 18, 2024

Frequently Asked Questions

What are the largest departments at O'Brien Law Firm?

Minus sign iconPlus sign iconLegal is the largest department at 83% of profiles with a known department, up from 75% in January 2026, followed by Community & Social Services (9%, up from 8%) and Accounting (4%, down from 8%). O'Brien Law Firm's workforce spans 4 departments.

How has O'Brien Law Firm's workforce changed over the past year?

Minus sign iconPlus sign iconO'Brien Law Firm's workforce grew 93% between January 2026 and November 2026. Legal's share of profiles with a known department rose from 75% to 83%.

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

Minus sign iconPlus sign iconO'Brien Law Firm has approximately 71 employees as of November 2026. These team members are located across 1 continents, including North America.

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

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

  • Owner And Litigation Attorney: C. O.
  • Principal Lawyer: T. O.
  • Paralegal: A. R.
  • Investigator: K. B.

Looking for contact data? Unlock accurate emails and phone numbers for your ideal prospects with LeadIQ.

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

Minus sign iconPlus sign iconO'Brien Law Firm employees' email format typically follows the pattern of Last@obrienlawfirm.com. Trying to find reliable and up-to-date employee contact data? Find more O'Brien Law Firm email formats with LeadIQ.

What is O'Brien Law Firm known for?

Minus sign iconPlus sign iconO'Brien Law Firm was founded in 2000 and operates in the Legal Services industry. Explore O'Brien Law Firm's company overview page for more information.

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