Insights

Established Market Presence O'NEIL, CANNON, HOLLMAN, DEJONG & LAING S.C. is a well-established regional law firm with a diverse practice across business, family, estate, and litigation law, indicating ongoing demand for comprehensive legal services and potential for expanding service offerings.

Recent Talent Acquisition The firm has actively expanded its team by hiring multiple experienced attorneys including Nathan Eckley, Christina Ruud, and Cate Heerey, suggesting a focus on strengthening expertise areas and an openness to investing in professional development and legal technology solutions.

Recognition and Growth Receiving regional recognition in the 2026 Best Law Firms rankings across 18 practice areas demonstrates the firm’s reputation and growth potential, making it a strong candidate for legal technology products, marketing solutions, and client engagement tools aimed at high-performing firms.

Technology Adoption Utilizing a modern tech stack that includes Google Analytics, HTTP/3, and AMP shows a progressive approach to digital marketing and online client engagement, highlighting opportunities for advanced analytics, cybersecurity solutions, and web optimization services.

Financial Stability With revenues estimated between $25 million and $50 million, the firm has solid financial health, presenting opportunities for scale-up investments in legal management software, practice management platforms, and client relationship management (CRM) solutions tailored for mid-sized legal practices.

Similar companies to O'NEIL, CANNON, HOLLMAN, DEJONG & LAING S.C.

O'NEIL, CANNON, HOLLMAN, DEJONG & LAING S.C. Tech Stack

O'NEIL, CANNON, HOLLMAN, DEJONG & LAING S.C. uses 8 technology products and services including LiteSpeed Cache, AMP, jQuery, and more. Explore O'NEIL, CANNON, HOLLMAN, DEJONG & LAING S.C.'s tech stack below.

  • LiteSpeed Cache
    Caching
  • AMP
    Javascript Frameworks
  • jQuery
    Javascript Libraries
  • jQuery Migrate
    Javascript Libraries
  • HTTP/3
    Web & Portal Technology
  • Google Analytics
    Web Analytics
  • WP-PageNavi
    Web Platform Extensions
  • Max Mega Menu
    Widgets

O'NEIL, CANNON, HOLLMAN, DEJONG & LAING S.C.'s Email Address Formats

O'NEIL, CANNON, HOLLMAN, DEJONG & LAING S.C. uses at least 1 format(s):
O'NEIL, CANNON, HOLLMAN, DEJONG & LAING S.C. Email FormatsExamplePercentage
First.Last@wilaw.comJohn.Doe@wilaw.com
76%
Last@wilaw.comDoe@wilaw.com
21%
F.Last@wilaw.comJ.Doe@wilaw.com
2%
First.Middle@wilaw.comJohn.Michael@wilaw.com
1%

Frequently Asked Questions

Where is O'NEIL, CANNON, HOLLMAN, DEJONG & LAING S.C.'s headquarters located?

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O'NEIL, CANNON, HOLLMAN, DEJONG & LAING S.C.'s main headquarters is located at 111 Eastwisconsin Avenue Suite 1400 Milwaukee, Wisconsin 53202 United States. The company has employees across 1 continents, including North America.

What is O'NEIL, CANNON, HOLLMAN, DEJONG & LAING S.C.'s phone number?

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You can contact O'NEIL, CANNON, HOLLMAN, DEJONG & LAING S.C.'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 O'NEIL, CANNON, HOLLMAN, DEJONG & LAING S.C.'s official website and social media links?

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O'NEIL, CANNON, HOLLMAN, DEJONG & LAING S.C.'s official website is wilaw.com and has social profiles on LinkedIn.

What is O'NEIL, CANNON, HOLLMAN, DEJONG & LAING S.C.'s SIC code NAICS code?

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O'NEIL, CANNON, HOLLMAN, DEJONG & LAING S.C.'s SIC code is 8111 - Legal Services NAICS code is 54111 - Offices of Lawyers.

How many employees does O'NEIL, CANNON, HOLLMAN, DEJONG & LAING S.C. have currently?

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As of March 2026, O'NEIL, CANNON, HOLLMAN, DEJONG & LAING S.C. has approximately 88 employees across 1 continents, including North America. Key team members include President And Managing Shareholder: P. F.Chairman Emeritus/ Shareholder: J. D.Marketing Director: J. D.. Explore O'NEIL, CANNON, HOLLMAN, DEJONG & LAING S.C.'s employee directory with LeadIQ.

What industry does O'NEIL, CANNON, HOLLMAN, DEJONG & LAING S.C. belong to?

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O'NEIL, CANNON, HOLLMAN, DEJONG & LAING S.C. operates in the Law Practice industry.

What technology does O'NEIL, CANNON, HOLLMAN, DEJONG & LAING S.C. use?

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O'NEIL, CANNON, HOLLMAN, DEJONG & LAING S.C.'s tech stack includes LiteSpeed CacheAMPjQueryjQuery MigrateHTTP/3Google AnalyticsWP-PageNaviMax Mega Menu.

What is O'NEIL, CANNON, HOLLMAN, DEJONG & LAING S.C.'s email format?

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O'NEIL, CANNON, HOLLMAN, DEJONG & LAING S.C.'s email format typically follows the pattern of First.Last@wilaw.com. Find more O'NEIL, CANNON, HOLLMAN, DEJONG & LAING S.C. email formats with LeadIQ.

When was O'NEIL, CANNON, HOLLMAN, DEJONG & LAING S.C. founded?

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O'NEIL, CANNON, HOLLMAN, DEJONG & LAING S.C. was founded in 1973.

O'NEIL, CANNON, HOLLMAN, DEJONG & LAING S.C.

Law PracticeWisconsin, United States51-200 Employees

Our goal is to provide real-world, practical advice to businesses and their owners. If you need guidance, we will work with you on all stages of the business life cycle, helping you start, grow, and transition your business from one generation to the next.  In addition to your business needs, we are a full-service firm offering assistance for your personal legal needs including tax and estate planning, family law, and litigation—including personal injury litigation. 

Our teams regularly collaborate to ensure a keen analysis that allows our clients to meet their goals—along the way providing exceptional service.  Just ask our clients, they will tell you we offer a legal relationship that is realistic and represents your full interests.”

Section iconCompany Overview

Headquarters
111 Eastwisconsin Avenue Suite 1400 Milwaukee, Wisconsin 53202 United States
Phone number
Website
wilaw.com
SIC Code
8111 - Legal Services
NAICS Code
54111 - Offices of Lawyers
Founded
1973
Employees
51-200

Section iconFunding & Financials

  • $25M$50M

    O'NEIL, CANNON, HOLLMAN, DEJONG & LAING S.C.'s revenue is estimated to be in the range of $25M$50M

Section iconFunding & Financials

  • $25M$50M

    O'NEIL, CANNON, HOLLMAN, DEJONG & LAING S.C.'s revenue is estimated to be in the range of $25M$50M

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