Insights

Mesothelioma Expertise Strong focus on mesothelioma and asbestos-related cases with a demonstrated track record in investigations, prosecutions, and settlements, indicating ongoing demand among affected clients and potential referrals from medical and advocacy networks.

Expanded Practice Diversified practice since 2020 into sexual abuse, criminal injury, serious injury, and wrongful death, suggesting a broader client base and cross-sell opportunities to families and individuals seeking representation after misconduct or serious harm.

Missouri Reach Midwest market leadership with a legal presence in Missouri and history of state-level regulatory improvements (2013 workers’ comp enhancements for mesothelioma/asbestosis), presenting opportunities to collaborate with local councils, insurers, and medical centers.

Financial Scale Revenue in the range of $100M–$250M and 51–200 employees signal substantial capacity for complex, high-value cases, as well as potential partnerships for co-counsel, data-driven marketing platforms, or software for case management and trust/commercial filings.

Tech & Branding Utilizes a modern tech stack and digital channels (Cloudflare, RSS, MySQL, fonts, media hosting) that can support scalable marketing collaborations, client portals, and analytics-enabled outreach to grow client intake and optimize conversion funnels.

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O'Brien Law Firm Tech Stack

O'Brien Law Firm uses 8 technology products and services including RSS, Open Graph, oEmbed, and more. Explore O'Brien Law Firm's tech stack below.

  • RSS
    Content Management System
  • Open Graph
    Content Management System
  • oEmbed
    Dev Tools
  • Google Fonts API
    Font Scripts
  • Really Simple Discovery
    Miscellaneous
  • YouTube
    Video Players
  • Google Search Console
    Web Analytics
  • Gravity Forms
    Web Platform Extensions

O'Brien Law Firm's Email Address Formats

O'Brien Law Firm uses at least 1 format(s):
O'Brien Law Firm Email FormatsExamplePercentage
Last@obrienlawfirm.comDoe@obrienlawfirm.com
63%
FLast@obrienlawfirm.comJDoe@obrienlawfirm.com
35%
First@obrienlawfirm.comJohn@obrienlawfirm.com
2%

Frequently Asked Questions

What is O'Brien Law Firm's official website and social media links?

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O'Brien Law Firm's official website is obrienlawfirm.com and has social profiles on LinkedIn.

How much revenue does O'Brien Law Firm generate?

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As of July 2026, O'Brien Law Firm's annual revenue is estimated to be $100M - $250M.

What is O'Brien Law Firm's SIC code NAICS code?

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O'Brien Law Firm's SIC code is 8111 - Legal Services NAICS code is 5411 - Legal Services.

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

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As of July 2026, O'Brien Law Firm has approximately 73 employees across 1 continents, including North America. Key team members include Owner And Litigation Attorney: C. O.Principal Lawyer: T. O.Paralegal: A. R.. Explore O'Brien Law Firm's employee directory with LeadIQ.

What industry does O'Brien Law Firm belong to?

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O'Brien Law Firm operates in the Legal Services industry.

What technology does O'Brien Law Firm use?

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O'Brien Law Firm's tech stack includes RSSOpen GraphoEmbedGoogle Fonts APIReally Simple DiscoveryYouTubeGoogle Search ConsoleGravity Forms.

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

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O'Brien Law Firm's email format typically follows the pattern of Last@obrienlawfirm.com. Find more O'Brien Law Firm email formats with LeadIQ.

When was O'Brien Law Firm founded?

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O'Brien Law Firm was founded in 2000.
O'Brien Law Firm logo

O'Brien Law Firm

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.

Section iconCompany Overview

SIC Code
8111 - Legal Services
NAICS Code
5411 - Legal Services
Founded
2000
Employees
51-200

Section iconFunding & Financials

  • $100M - $250M

    O'Brien Law Firm's revenue is estimated to be in the range of $100M - $250M

Section iconFunding & Financials

  • $100M - $250M

    O'Brien Law Firm's revenue is estimated to be in the range of $100M - $250M

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