What Sweeney Merrigan Law does

Sweeney Merrigan Law is a privately held personal injury law firm organized as a Massachusetts limited liability partnership, founded in 2011 and headquartered in Boston. The firm represents individuals injured through the negligence of others, with a practice spanning car, truck, motorcycle, bicycle, bus, pedestrian, and rideshare accidents, as well as medical malpractice, mass torts (including opioid litigation), workers' compensation, wrongful death, premises liability, nursing home abuse, product liability, and brain and burn injuries. Its core technology stack is conventional for a law firm: a content- and SEO-driven website with location-specific pages, video center, contact forms, and social media presence, and no disclosed proprietary software.

The firm operates exclusively on a contingency fee basis, requiring no upfront payment from clients and collecting attorney fees only upon successful settlement or verdict, alongside free 24/7 initial consultations delivered in person across five offices or remotely via phone and Zoom. Lead generation is sales-led and driven by organic search, educational blog content, video, 250+ Google Reviews, and community partnerships with organizations such as Boston Children's Hospital, the Jimmy Fund, and Big Brothers Big Sisters of Massachusetts Bay. Distribution is direct-to-consumer with no intermediaries, and revenue is fully dependent on case outcomes.

The legal team includes co-Managing Partners Peter M. Merrigan and J. Tucker Merrigan, partner and former Trial Judge Hon. Thomas T. Merrigan (Ret.), and additional partners and trial attorneys, with multiple attorneys recognized in Best Lawyers in America, Super Lawyers, and Top 40 Under 40 by the National Trial Lawyers. Documented case results include an $84.1M opioid epidemic settlement, a $20M medical malpractice verdict, a $16.9M motor vehicle accident recovery, and a $12.1M sexual assault verdict described as the largest in Massachusetts, contributing to the firm's stated cumulative recovery of over $500M for clients since founding.

Name

Sweeney Merrigan Law

Legal name

Sweeney Merrigan Law, LLP

Website

https://sweeneymerrigan.com

Company type

Private

Founded year

2011

Operating status

Operating

Headcount range

11–50 employees

Short description

Sweeney Merrigan Law is a Boston-based personal injury law firm representing accident victims across Massachusetts and New Hampshire on a contingency fee basis, with five offices and a roster of 13 attorneys.

Ownership category

akta.pro rank

Product category

Personal Injury Legal Services

NAICS

Offices of Lawyers (54111)

SIC

Services-Legal Services (8111)

akta.pro primary industry

Personal Injury & Insurance Defense (BPAHAAAM)

Keywords

• Personal injury law
• Accident representation
• Contingency fee legal
• Negligence claims
• Wrongful death suits

Headquarters

HQ city

Boston

HQ country

United States

HQ region

North America

Offices5 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Marketing or Sales, Operations, Technology or R&D, Infrastructure

Revenue model

1. Legal Services - Contingency Fees: The firm operates exclusively on a contingency fee basis for personal injury cases. Clients pay nothing upfront for legal representation. Attorney fees and other costs are deducted only from successful settlements or verdicts. If the firm does not win the case, the client owes nothing.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels7 records

Core offering

Sweeney Merrigan Law is a Boston-based personal injury law firm that represents individual clients who have been injured due to the negligence of others. The firm handles case types including car accidents, truck accidents, motorcycle accidents, workers' compensation, slip and fall incidents, medical malpractice, wrongful death, product liability, and dog bite claims, primarily on a contingency fee basis.

Product overview

Sweeney Merrigan Law is a personal injury law firm offering comprehensive legal services through a unified platform of practice area modules. The core offering is personal injury legal representation with specialized services spanning auto accidents (car, motorcycle, truck, bicycle, bus), medical malpractice, workers' compensation, wrongful death, mass torts, premises liability, product liability, and employment law. All services operate on a contingency fee basis where clients pay nothing upfront. The firm provides free consultations and handles cases from initial evaluation through trial. The practice serves clients across Massachusetts with offices in Boston, Lawrence, Springfield, Nashua, and Worcester.

Differentiator

Problem solved

Functional benefit

Products and services

• Personal Injury Representation
• Car Accident Representation
• Truck Accident Representation
• Motorcycle Accident Representation
• Workers' Compensation Representation
• Slip and Fall / Premises Liability Representation
• Medical Malpractice Representation
• Wrongful Death Representation Legal representation for families who have lost a loved one due to another party's negligence or intentional harm, pursuing survival and wrongful death damages. Intended for surviving family members.
• Product Liability Representation
• Dog Bite Representation

Quantifiable outcome

• $84.1 Million recovered for Massachusetts Opioid Epidemic case
• +6 more outcomes

Named customers4 records

Segments4 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Seven partnerships are on record, tiered minor.

• Boston Children's HospitalminorOthersFirm supports Boston Children's Hospital through community involvement, supporting the hospital's mission to provide exceptional pediatric care to children and adolescents.
• The Jimmy FundminorOthersSupport for The Jimmy Fund, which raises funds for cancer research and support through the Dana-Farber Cancer Institute in Boston.
• Boys & Girls Clubs of WatertownminorOthersPartnership supporting youth development programs that provide encouragement, guidance, and resources to help children reach their full potential.
• Lupus Foundation of AmericaminorOthersSupport for the Lupus Foundation of America, which works to end lupus and improve quality of life for those affected through research, education, and advocacy.
• Big Brothers Big Sisters of Massachusetts BayminorOthersSupport for mentorship programs connecting children with positive adult role models to help young people reach their full potential.
• Pan-Mass ChallengeminorOthersSupport for the annual bike-a-thon that raises money for cancer treatment and research at Dana-Farber Cancer Institute.
• Massachusetts Association of Women LawyersminorOthersAffiliation with M.A.W.L., the oldest women's bar association in Massachusetts (established 1905), promoting the advancement of women in the legal profession.

Scale indicators8 records

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• Wilshire Law Firm: Large personal injury firm using a contingency-fee model with strong mass-tort and catastrophic injury capabilities. Comparable in plaintiff-side trial posture and high-stakes case mix.
• Ankin Law Office: Large, well-capitalized personal injury firm with a contingency-fee model and broad plaintiff-side practice. Comparable in scale, advertising-driven client acquisition, and case-type breadth, though operating primarily outside New England.
• Jacoby & Meyers: National personal injury and consumer protection firm with a contingency-fee model, multi-state office footprint, and heavy advertising spend. Comparable in target client (injured individuals) and revenue model.
• Cellino Law (The Barnes Firm): Large, well-known personal injury firm with national TV advertising, contingency-fee model, and a similar mass-marketing approach. Comparable in business model and target client base, though operating on a larger geographic scale.
• Morgan & Morgan: The largest personal injury law firm in the United States with national advertising spend, broad practice area coverage, and a contingency-fee model directly comparable to Sweeney Merrigan's. Serves as the principal competitive threat from the national consolidator side.

Direct peers

• Lubin & Meyer PC: Boston-based law firm specializing in medical malpractice and personal injury, with a strong trial reputation. Direct overlap with Sweeney Merrigan's medical malpractice and high-value injury practice areas.
• The Law Offices of John J. Lepore: Massachusetts personal injury firm with a contingency-fee model, multi-office presence, and similar plaintiff-side case mix. Direct regional competitor for the same auto accident and injury client base.
• Gair Law Firm: New England-based personal injury and medical malpractice firm. Direct overlap with Sweeney Merrigan's plaintiff-side practice and contingency-fee approach in the same regional market.
• Breakstone, White & Gluck: Boston-based personal injury law firm with a comparable contingency-fee model, similar practice area focus (auto accidents, premises liability, medical malpractice), and overlapping service territory in Greater Boston and Massachusetts.

Regional players

• Riddle & Brantley: Personal injury firm with a contingency-fee model and multi-office presence in the Southeast U.S. Comparable in plaintiff-side practice, advertising-driven acquisition, and contingency revenue model, though operating in a different region.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights5 records

Customer concentration

• Xx.com/sweeneymerrigan
• LinkedInlinkedin.com/company/sweeney-merrigan-law

Revenue estimate

Valuation estimate

Number of profiles

Profiles14 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 Sweeney Merrigan Law