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John O'Sullivan Solicitors

Carlow, Ireland

John O'Sullivan Solicitors is a Dublin and Galway based law firm founded in 2015 by Jason O’Sullivan. The firm provides specialist legal services for business and private clients in areas including Employment Law, Corporate Law, Commercial Litigation, Medical Negligence, Defamation and Personal Injury Litigation, with a client focused, practical approach.

The firm has earned broad recognition within the Irish legal community, including Jason O’Sullivan being named Lawyer of the Year 2023 and the firm receiving Excellence and Innovation in Client Services at the Irish Law Awards, with earlier wins in 2018 and 2021.

With offices in Dublin and Galway, the practice emphasizes direct, responsive client service, combining legal expertise with industry insight and access to public affairs and lobbying services to support business clients.

About John O'Sullivan Solicitors

Founded in 2015

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Practice areas
Accidents & Injuries
Employment & Labor
Corporate & Commercial
Lawsuits & Disputes

Languages spoken
English

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Practice areas

John O'Sullivan Solicitors provides dedicated representation in personal injury and medical negligence claims, guiding clients through the process from first advice to settlement or courtroom resolution. The firm focuses on liability assessment, damages, insurer engagement and pursuing fair compensation for clients.
Animal & Dog Injury
Assault & Battery
Birth Injury
Brain Injury
Car Accident
Construction Accident
Dangerous Product
Defamation
Drugs & Medical Devices
Medical Malpractice
Motor Vehicle Defect
Motorcycle Accident
Personal Injury
Premises Liability
Property Damage
Sexual Abuse
Toxic Mold
Toxic Tort
Travel Accident
Truck Accident
Work Injury
Workers Compensation
Wrongful Death
The firm offers guidance on employment contracts, disciplinary matters, disputes, redundancies and workplace compliance, representing both employees and employers in negotiations and litigation as required.
Employment Rights
Hiring & Firing
Job Discrimination
Labor Law
Pension
Retirement
Sexual Harassment
Social Security
Wage & Hour
Wrongful Termination
Whistleblower & Qui Tam
Employment Benefits & Executive Compensation
The firm handles corporate and commercial matters including company formation, governance, commercial contracts and related disputes, delivering practical, business oriented legal solutions for clients.
Administrative
Admiralty & Maritime
Agriculture
Antitrust
Aviation
Business Registration
Contract
Due Diligence
Franchising
Gaming
Government Contract
Licensing
Merger & Acquisition
Transportation
Venture Capital
Cannabis Law
Nonprofit & Charitable Organizations
International Trade Law
Government Relations & Lobbying
Private Equity
Corporate Governance
Sanctions & Export Controls
The firm supports civil and commercial litigation across sectors, providing strategic advisory, negotiation and advocacy to achieve favorable outcomes for clients.
ADR Mediation & Arbitration
Appeal
Class Action
General Litigation
Ethics and Professional Responsibility
Commercial Litigation
Antitrust Litigation
Restructuring & Insolvency
Dispute Prevention & Pre-Litigation

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