Business Details
50+ Years
experience
Your Trusted Legal Partner in London
Established in 1970, we have built our reputation on delivering exceptional legal outcomes through a combination of intellectual rigor and practical business acumen. Our firm comprises over 925 attorneys operating across 32 offices in North America and Europe, serving a diverse clientele ranging from Fortune 500 companies to high-profile individuals. With nationally recognized practices in litigation, corporate law, and government relations, we combine deep legal expertise with strategic insight to achieve our clients' objectives. Our attorneys, many of whom hold prominent positions in legal and business communities, approach every case with relentless dedication to detail and results. We maintain a strong commitment to innovation, evidenced by our ancillary services in cybersecurity, subrogation, and government strategies.Recognized by leading legal directories including Chambers & Partners and The Legal 500, we uphold the highest standards of professional excellence while maintaining accessibility through modern technology solutions. Our bipartisan government relations arm provides unique value in navigating complex political landscapes, and our ancillary businesses extend our capabilities beyond traditional legal services. Through decades of growth, we have preserved our founding principle: achieving the right result for every client through meticulous preparation and execution.
Services
Litigation
Corporate Law
Government Relations
Intellectual Property
Real Estate
Cybersecurity
Subrogation
Data Security
Employment Law
Mergers & Acquisitions
Details
- Year established: 1970
Highlights and features
- We have over 50 years of experience delivering legal excellence across 32 international offices
- Our 925+ attorneys combine academic credentials with practical business understanding
- Recognized in top legal directories for litigation, corporate, and government practices
- Bipartisan government relations expertise from former political insiders
- Innovative ancillary services extend our capabilities beyond traditional legal offerings
Associations and certifications
- Chambers & Partners
- The American Lawyer
- The Legal 500
- Best Lawyers
What people say
Exceptional legal expertise
Strategic business approach
Reliable representation
Innovative solutions
Strong client focus
Services
Litigation
Our litigation practice combines decades of courtroom experience with strategic business insight to resolve complex disputes. We handle commercial litigation, class actions, product liability, and regulatory matters for clients across industries. Our attorneys' track record of successful verdicts and settlements demonstrates our ability to achieve favorable outcomes through both trial advocacy and negotiated solutions.
Corporate Law
We provide comprehensive corporate legal counsel covering mergers and acquisitions, venture capital, and regulatory compliance. Our team advises on cross-border transactions, corporate governance, and strategic business development. With deep industry knowledge, we help clients navigate complex transactions while maintaining focus on their commercial objectives and risk management requirements.
Government Relations
Our bipartisan government relations practice leverages former political insiders' expertise to influence policy decisions. We represent clients before legislative and executive branches at all government levels, combining legal analysis with strategic political engagement. The team's experience includes regulatory advocacy, crisis management, and navigating complex government investigations.
Cybersecurity
COSECURE, our affiliated cybersecurity consultancy, offers comprehensive risk management solutions. Services include security assessments, incident response planning, and compliance with data protection regulations. Our experts, including former law enforcement and military personnel, provide practical strategies to protect against cyber threats while maintaining business continuity.
Subrogation Services
National Subrogation Services (NSS) specializes in insurance claims recovery across all 50 states. We handle moderate-sized losses with advanced analytics and experienced professionals. Our services include claims evaluation, recovery litigation, and technology-driven case management to maximize subrogation outcomes for insurance carriers and corporate clients.
People
Sarah Klem
Director of Communications
Responsible for media relations and communications strategy at Cozen O'Connor, Sarah brings extensive experience in legal industry communications. She manages press engagement and coordinates with attorneys to ensure consistent messaging across all media platforms.
Steven Weisz
Office Managing Counsel, Toronto
Leading the Toronto office, Steven provides strategic legal counsel with focus on corporate and commercial matters. He oversees the delivery of legal services across practice areas while maintaining active client relationships in key industry sectors.
Dr. Ronald Menold
Director of Cybersecurity Services
Cybersecurity expert directing COSECURE's technical operations, Dr. Menold develops advanced security protocols and risk management strategies. He leads incident response teams and advises clients on compliance with evolving data protection regulations.
Questions
What areas of law does Cozen O'Connor specialise in?
We provide comprehensive legal services across litigation, corporate transactions, government relations, intellectual property, real estate, cybersecurity, and employment law.
How many offices does the firm have internationally?
Cozen O'Connor operates from 32 offices across North America and Europe, including major business centres in the United States, Canada, and the United Kingdom.
What makes the firm different from other law firms?
Our combination of litigation excellence, business-focused legal advice, and innovative ancillary services creates unique value for clients across industries.
Does the firm offer cybersecurity services?
Yes, through our affiliated company COSECURE, we provide comprehensive cybersecurity assessments, incident response planning, and data protection compliance services.
What industries does the firm serve?
We represent clients across diverse sectors including technology, healthcare, finance, manufacturing, real estate, and government relations matters.
