Thomas Quinn

What Thomas Quinn does

Thomas Quinn LLP is a U.S. maritime trial practice law firm founded in 2016 and headquartered in San Francisco. The firm represents employers, self-insured companies, insurance carriers, and third-party administrators in defense-side matters arising under federal maritime workers' compensation statutes — including the Longshore and Harbor Workers' Compensation Act and its extensions (Defense Base Act, War Hazards Compensation Act, Outer Continental Shelf Lands Act, Non-Appropriated Funds Instrumentalities Act) — as well as Jones Act personal injury claims, general maritime personal injury defense, civil litigation, insurance defense, and intermodal cargo transportation disputes under COGSA and the Carmack Amendment.

The firm's service offering is built around attorney-led representation rather than any proprietary technology or product. Its core capabilities are concentrated in approximately 50+ attorneys admitted across multiple federal circuits (2nd, 4th, 5th, 9th, and 11th) and the U.S. Supreme Court, supported by an office footprint in five locations — San Francisco, Long Beach, San Diego, Houston, and Chicago — chosen to align with major U.S. maritime, port, and energy hubs. The firm publishes in industry references such as The Longshore Textbook and the Defense Base Act Handbook, presents at Department of Labor and industry seminars, and participates in the Department of Labor Joint Bar Association and the Longshore Claims Association to maintain its referral network and regulatory standing.

Thomas Quinn LLP is a privately held limited liability partnership. Revenue is generated through professional legal fees on a matter-by-matter, quote-based pricing model, with no public fee schedule, subscription, or alternative-fee structures disclosed. The firm has no external institutional investors, no parent company, no subsidiaries, and no M&A activity referenced in available materials, and operates as an independent partnership named after founding partner Michael T. Quinn.

Name

Thomas Quinn

Legal name

Thomas Quinn, LLC

Website

https://thomasquinnlaw.com

Company type

Private

Founded year

2016

Operating status

Operating

Headcount range

11–50 employees

Short description

Thomas Quinn LLP is a privately held U.S. maritime trial practice law firm that represents employers, self-insured companies, and insurance carriers in Longshore Act, Defense Base Act, Jones Act, and general maritime defense matters, operating from five offices in California, Texas, and Illinois.

Ownership category

akta.pro rank

Product category

Maritime Legal Services

NAICS

Legal Services (5411)

SIC

Services-Legal Services (8111), Fire, Marine & Casualty Insurance (6331)

akta.pro primary industry

Personal Injury & Insurance Defense (BPAHAAAM)

akta.pro secondary industry

Protection & Indemnity (P&I) / Marine Liability Insurance (FSAJAHAH)

Keywords

• Maritime law services
• Workers compensation defense
• Insurance defense litigation
• Jones Act representation
• Defense Base Act counsel

Headquarters

HQ city

San Francisco

HQ country

United States

HQ region

North America

Offices5 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Others

Revenue model

1. Legal Services Fees: Professional legal services rendered to employers, insurance carriers, and self-insured companies in maritime law and workers' compensation defense matters. Revenue is generated through legal fees for representation in litigation, administrative proceedings, and advisory services.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Thomas Quinn LLP is a maritime trial practice law firm that represents employers, self-insured companies, insurance carriers, and government contractors in federal maritime workers' compensation claims and maritime litigation. Core services include defense of claims under the Longshore and Harbor Workers' Compensation Act and its extensions (Defense Base Act, War Hazards Compensation Act, Outer Continental Shelf Lands Act), Jones Act personal injury defense, general maritime litigation, civil litigation, insurance defense, and intermodal cargo transportation disputes.

Product overview

Thomas Quinn LLP is a maritime trial practice law firm offering a unified suite of legal services focused on maritime law and workers' compensation defense. The firm's core service offerings include Longshore & Harbor Workers' Compensation Act representation (covering Defense Base Act, War Hazards Compensation Act, Outer Continental Shelf Lands Act), Maritime Personal Injury Defense, Civil Litigation, Insurance Defense, and Intermodal Cargo Transportation legal services. With offices in California (San Francisco, Long Beach, San Diego), Texas (Houston), and Illinois (Chicago), the firm provides national and international representation with a personal touch approach characteristic of a modestly-sized firm.

Differentiator

Problem solved

Functional benefit

Products and services

• Longshore & Harbor Workers' Compensation Act Representation Legal representation for employers and insurance carriers in claims arising under the Longshore and Harbor Workers' Compensation Act and its extensions, including Defense Base Act, War Hazards Compensation Act, Outer Continental Shelf Lands Act, and Non-Appropriated Funds Instrumentalities Act. For employers, self-insured companies, and insurance carriers needing defense counsel.
• Defense Base Act Practice Defense representation for government contractors and their insurers in claims brought by employees working overseas at American military bases under the Defense Base Act extension of the Longshore Act. For government contractors, defense contractors, and their insurance carriers.
• War Hazard Compensation Act Representation Defense representation under the War Hazards Compensation Act (WHCA), an extension of the Longshore Act that provides workers' compensation coverage for injuries occurring as a result of war or warlike conditions. For employers, self-insured companies, and insurance carriers with overseas contractor exposure.
• Jones Act Representation Defense of Jones Act personal injury and seaman claims brought by maritime workers against employers, vessel owners, and operators. For employers, vessel owners, and their insurance carriers.
• Outer Continental Shelf Lands Act Representation Defense representation under the Outer Continental Shelf Lands Act (OCSLA), which extends Longshore Act coverage to workers on fixed platforms on the U.S. outer continental shelf. For employers and insurance carriers in the offshore energy sector.
• Intermodal Cargo Transportation Legal Services Legal representation in intermodal cargo transportation cases, including matters involving the Carriage of Goods by Sea Act (COGSA) and the Carmack Amendment. For shipping companies, carriers, terminal operators, and cargo interests.
• Civil Litigation Civil litigation services for maritime and workers' compensation matters including trials, mediations, and settlement discussions. For employers, insurance carriers, and maritime industry clients.
• Insurance Defense Defense of insurance carriers and self-insured employers against liability claims arising under maritime and workers' compensation laws. For insurance carriers, third-party administrators, and self-insured employers.

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators2 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• Butler Weihmuller Katz Craig LLP: Specialized insurance defense firm with a strong maritime/admiralty and Longshore practice, directly competing for the same carrier-side defense work as Thomas Quinn.
• Lorance & Thompson, PC: Houston-based maritime defense firm handling Jones Act, Longshore, and general maritime personal injury defense, overlapping directly with Thomas Quinn's Houston office and core practice areas.
• Phelps Dunbar LLP: Gulf-based regional firm with a leading admiralty and maritime practice group, providing Longshore, Jones Act, and maritime injury defense representation to employers and carriers.
• Jones Walker LLP: Gulf-focused firm with deep maritime litigation and marine insurance coverage practice, serving many of the same carrier and shipping/energy clients Thomas Quinn targets.
• Freehill Hogan & Mahar LLP: New York admiralty and maritime litigation boutique active in Jones Act, Longshore, and marine insurance defense — a leading competitor for East Coast and national maritime defense work.
• Brown Sims, P.C. Texas-based insurance defense firm with a maritime/admiralty practice handling Longshore, Jones Act, and defense base-type claims, overlapping with Thomas Quinn's Houston office.

Broad incumbents

• K&L Gates LLP: Large, full-service national firm with a maritime practice that handles Longshore, Jones Act, and marine insurance matters; competes for carrier-side defense work but as part of a much broader portfolio.
• Lewis Brisbois Bisgaard & Smith LLP: National insurance defense firm with a sizable admiralty and maritime practice; competes for the same carrier panels but offers breadth across many other defense lines.
• Cozen O'Connor: National defendants' firm with a maritime/admiralty practice serving marine insurers and employers — competing on carrier panels while operating as a much larger generalist.
• Marshall, Dennehey, Warner, Coleman & Goggin: Large East Coast insurance defense firm with a maritime practice group handling Longshore and Jones Act defense — competes for carrier-side volume nationally.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat2 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

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 Thomas Quinn