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

O'NEIL, CANNON, HOLLMAN, DEJONG & LAING S.C. is a Wisconsin-based law firm established in 1973 and headquartered in Milwaukee. It operates as a professional service corporation (S.C.) — the standard legal entity structure for U.S. law practices — under a private ownership model, with a disclosed employee base of 101-250. The multi-partner name convention implies a partnership-style organization of attorney-shareholders, which is typical of regional mid-market U.S. law firms. No additional firmographic, operational, or commercial detail was available in the source dataset.

The firm's website (wilaw.com) was not parsable at time of analysis and rendered only a loading/verification page rather than substantive content. Consequently, no practice-area mix, client roster, attorney count, fee structure, technology stack, marketing channels, partnership history, or geographic coverage beyond the Milwaukee anchor could be extracted. No products, services catalog, awards, certifications, regulatory actions, leadership bios, AI/ML capabilities, or funding history were disclosed in the input.

Given a 50+ year operating window and a mid-size employee base anchored in Wisconsin, the available evidence supports characterization as a long-tenured regional law firm serving Wisconsin-area business and individual clients. However, the absence of disclosed service mix, client composition, revenue, and ownership detail materially constrains any granular assessment of business model, growth posture, or competitive positioning.

Name

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

Legal name

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

Website

https://wilaw.com

Company type

Private

Founded year

1973

Operating status

Operating

Headcount range

101–250 employees

Short description

Milwaukee-based law firm established in 1973, operating as a Wisconsin professional service corporation with 101-250 employees. The firm provides legal services to regional clients; specific practice areas, client segments, and revenue details are not disclosed in available data.

Ownership category

akta.pro rank

Headquarters

HQ city

Milwaukee

HQ country

United States

HQ region

North America

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Marketing or Sales, Others

Core offering

O'NEIL, CANNON, HOLLMAN, DEJONG & LAING S.C. is a Wisconsin-based law firm founded in 1973, operating as a Service Corporation (S.C.) under Wisconsin professional service corporation rules. The firm provides legal services to clients from its Milwaukee office, staffed by 101–250 employees.

Differentiator

Problem solved

Functional benefit

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Recent moves1 record

Direct peers

• Reinhart Boerner Van Deuren s.c. Milwaukee-based law firm also structured as a service corporation, with comparable mid-size full-service practice. Strong structural and geographic peer.
• Godfrey & Kahn, S.C. Milwaukee-based law firm structured as a service corporation with comparable mid-market full-service practice. Closest structural peer — same city, same Wisconsin S.C. structure, similar full-service breadth.
• von Briesen & Roper, s.c. Wisconsin-based service corporation law firm with comparable mid-market size and full-service practice, including corporate, litigation, and trust/estate work. Closely comparable structural and operational peer.
• Davis & Kuelthau, s.c. Wisconsin-based service corporation law firm of similar mid-market scale, with offices in the Milwaukee metro. Comparable in structure, geography, and practice breadth.
• Crivello Carlson, S.C. Milwaukee-based S.C. law firm with comparable mid-market full-service practice and similar Wisconsin regional focus. Structural and geographic peer.

Regional players

• Foley & Lardner LLP: Major Milwaukee-headquartered law firm with broad full-service practice and significantly larger scale. Most directly comparable regional peer in the same geographic market with similar full-service positioning.
• Quarles & Brady LLP: Large Midwest law firm with a significant Milwaukee office and broad corporate, litigation, and regulatory practices. Comparable as a full-service competitor in the same Milwaukee/Wisconsin market.
• Michael Best & Friedrich LLP: Milwaukee-founded national law firm with comparable Midwest full-service offering and similar mid-market corporate focus. Direct regional competitor in the same metro.

Broad incumbents

• Husch Blackwell LLP: Large national firm with substantial Midwest presence, including a Milwaukee office formed through merger with Whyte Hirschboeck Dudek S.C. Comparable as a scaled competitor in the regional mid-market.
• Hall Render Killian Heath & Lyman: Large national healthcare-focused law firm headquartered in Milwaukee. Comparable as a Wisconsin-anchored firm that has scaled nationally through specialization — a potential roadmap for growth.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights4 records

Customer concentration

• Xx.com/oneilcannon
• Facebookfacebook.com/ochdl
• LinkedInlinkedin.com/company/503171

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about O'NEIL, CANNON, HOLLMAN, DEJONG & LAING S.C.