Insights

Defense and Insurance Focus Target law firms with a defense and insurance litigation focus, highlighting Parrillo, Weiss & O'Halloran as an aggressive trial firm with experience in defense, insurance-related and plaintiff personal injury cases, offering opportunities to cross-sell complementary services such as risk assessment and insurance defense partnerships.

Multi-State Presence Leverage their offices in Chicago, Boca Raton, and Phoenix to approach regional insurance carriers, corporations, and adjusters with state-specific needs, emphasizing localized expertise and convenient service delivery across three major markets.

Mid-Sized Firm Upsell Position as a growing mid-sized firm with 11-50 employees and revenue in the lower M range, suggesting scalable services for expanding practice areas, contract staffing, and project-based legal support for clients requiring nimble, cost-efficient litigation partners.

Tech Stack Fit Note their use of Google Cloud, WordPress, and open-source tech, presenting an opportunity to offer modern legal tech solutions such as eDiscovery, document automation, and secure collaboration tools that align with their current infrastructure.

Competitive Positioning Identify potential clients in similar markets and sizes by benchmarking against listed peers with mid to large revenue and regional footprints, offering bundled services, knowledge sharing, or co-marketing arrangements to strengthen mutual market reach.

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Parrillo, Weiss & O'Halloran Tech Stack

Parrillo, Weiss & O'Halloran uses 8 technology products and services including Google AdSense, WordPress, Google Cloud, and more. Explore Parrillo, Weiss & O'Halloran's tech stack below.

  • Advertising
  • Content Management System
  • Infrastructure As A Service
  • jQuery
    Javascript Libraries
  • PHP
    Programming Languages
  • Onsen UI
    Software Development
  • Apache
    Web Servers
  • Nginx
    Web Servers

Parrillo, Weiss & O'Halloran's Email Address Formats

Parrillo, Weiss & O'Halloran uses at least 2 email formats:
Parrillo, Weiss & O'Halloran Email FormatsExamplePercentage
FLast@pwolaw.comJDoe@pwolaw.com
88%
FirstL@pwolaw.comJohnD@pwolaw.com
12%

Frequently Asked Questions

What is Parrillo, Weiss & O'Halloran's phone number?

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You can contact Parrillo, Weiss & O'Halloran's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Parrillo, Weiss & O'Halloran's official website and social media links?

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Parrillo, Weiss & O'Halloran's official website is pwolaw.com and has social profiles on LinkedIn.

How much revenue does Parrillo, Weiss & O'Halloran generate?

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As of September 2026, Parrillo, Weiss & O'Halloran's annual revenue is estimated to be $1M - $10M.

What is Parrillo, Weiss & O'Halloran's SIC code and NAICS code?

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Parrillo, Weiss & O'Halloran's SIC code is 8111 - Legal Services and NAICS code is 54111 - Offices of Lawyers.

How many employees does Parrillo, Weiss & O'Halloran have currently?

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As of September 2026, Parrillo, Weiss & O'Halloran has approximately 14 employees across 1 continents, including North America. Key team members include Executive: D. M. Explore Parrillo, Weiss & O'Halloran's employee directory with LeadIQ.

What industry does Parrillo, Weiss & O'Halloran belong to?

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Parrillo, Weiss & O'Halloran operates in the Law Practice industry.

What technology does Parrillo, Weiss & O'Halloran use?

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Parrillo, Weiss & O'Halloran's tech stack includes Google AdSense, WordPress, Google Cloud, jQuery, PHP, Onsen UI, Apache and Nginx.

What is Parrillo, Weiss & O'Halloran's email format?

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Parrillo, Weiss & O'Halloran's email format typically follows the pattern of FLast@pwolaw.com. Find more Parrillo, Weiss & O'Halloran email formats with LeadIQ.
Parrillo, Weiss & O'Halloran logo

Parrillo, Weiss & O'Halloran

Law PracticeIllinois, United States11-50 Employees

Parrillo, Weiss & O'Halloran is a law practice based in Chicago, Illinois, with additional offices in Boca Raton, Florida, and Phoenix, Arizona. The firm provides full-service representation across a range of litigation, including defense and insurance-related matters, while maintaining an active docket of plaintiff personal injury and other cases. Its approach combines aggressive trial work with experience handling diverse types of litigation, offering services to clients facing complex legal disputes. The firm operates within the professional legal services industry and is positioned as a regional firm serving clients in multiple jurisdictions.

Founded and headquartered in the United States, the firm emphasizes its trial-lawyer experience and capability to manage both defense and plaintiff perspectives. Its regional footprint in the Midwest and Sun Belt locations supports a focus on insurance-related litigation and related commercial disputes. Overall, Parrillo, Weiss & O'Halloran pursues broad litigation practice within the framework of full-service legal representation for individuals and organizations encountering legal challenges.

Section iconCompany Overview

Phone number
Website
pwolaw.com
SIC Code
8111 - Legal Services
NAICS Code
54111 - Offices of Lawyers
Employees
11-50

Section iconFunding & Financials

  • $1M - $10M

    Parrillo, Weiss & O'Halloran's revenue is estimated to be in the range of $1M - $10M

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