THORELLI & ASSOCIATES

Chicago's Premier Business Law Firm

Providing exceptional legal counsel to foreign companies looking to do business in the United States, for over 40 years.

Helping Foreign and Domestic Companies Minimize Legal Risk in the United States

About Our Firm

Founded in 1985, Thorelli & Associates has established itself as one of Chicago’s most respected business law firms. We combine sophisticated legal expertise with personalized service to deliver exceptional results for our clients.

We pride ourselves on our deep understanding of the distinction between the way lawyers are used in other countries versus the U.S.

At Thorelli & Associates, we believe in building lasting relationships with our clients. We take the time to understand your business objectives and develop tailored strategies that align with your goals.

Our Practice Areas

We offer comprehensive legal services across key business areas, providing strategic counsel tailored to your specific industry and objectives.

Contract Negotiation including Acquisitions

Expert guidance in complex business transactions, mergers, acquisitions, and strategic agreement negotiations to protect your interests and maximize value.

Intellectual Property

Comprehensive IP protection and management services, including patents, trademarks, copyrights, and trade secrets protection strategies.

Corporate Law

Comprehensive corporate legal services covering formation, governance, compliance, and strategic business planning for organizations of all sizes.

Business Immigration Law

Expert assistance in business immigration matters, helping companies navigate visa processes and maintain compliance with immigration regulations.

Product Liability Preventive Management

Proactive legal strategies to minimize product liability risks, ensure compliance, and protect your business from potential claims.

Dispute Resolution

Strategic representation in business disputes through mediation, arbitration and/or litigation focusing on efficient and favorable resolutions.

Why Choose Thorelli

Our track record speaks for itself. We’ve helped over 1,000 foreign companies doing business in the US navigate complex legal challenges with exceptional results.

40+

Years of Experience

1000+

Satisfied Clients

Why Choose Thorelli

"I and many of my colleagues and clients have found Tom Thorelli’s guidance and wisdom really helpful over many years. One of Thorelli & Associates key unique selling propositions has always been that they specialise in successfully organising “soft landings” for companies into the US market, especially for European clients."

Bob Griffin
Tomcat

Recognition & Awards

Best Law Firms 2025

U.S. News

Top 50 Law Firms

Chicago Business Journal

Excellence in Corporate Law

Illinois Bar Association

Client Satisfaction

Martindale-Hubbell

Our Expert Team

Meet our exceptional attorneys who bring decades of experience and specialized expertise to every client engagement.

Thomas H. Thorelli

Founding Partner

Nathaniel T. Cutler

Managing Partner

Greg Casimer

Managing Partner

Jennifer Blackwell

Managing Partner

Notable Cases

Explore some of our most significant client successes across various practice areas.

When a client's trademark faced unauthorized use by a competitor on social media and in pending applications, Thorelli & Associates applied relentless pressure through cease-and-desist actions, oppositions, and international filings—ultimately forcing abandonment of infringing efforts and a favorable co-existence agreement.
Facing frequent patent infringement claims from "patent trolls," Thorelli & Associates leverages initial infringement analyses and strategic arguments to outmaneuver opponents, securing voluntary dismissals in four recent cases without settlements or licensing fees.

Contact Us

Schedule an introductory free consultation with our team to discuss your legal needs and how we can help your business succeed.