Experienced Securities Litigation & Business Trial Lawyers
Cosgrove Simpson is a nationally recognized law firm providing exceptional legal representation to businesses, executives, financial professionals, and individuals facing complex legal challenges. Our attorneys are committed to delivering strategic counsel, aggressive advocacy, and personalized service in every matter we handle.
Our firm represents clients nationwide in high-stakes litigation, securities disputes, regulatory investigations, commercial litigation, and business conflicts. By combining extensive courtroom experience with a collaborative team approach, we develop practical legal strategies tailored to each client's unique objectives and circumstances. Despite our focus in the financial services industry, Cosgrove Simpson's attorneys have experience in a variety of areas. But we are most proud of the strategy and consulting services that can keep clients out of the controversy.
Our legal team includes former regulators, prosecutors, and accomplished trial attorneys who bring valuable insight to every case. This diverse experience allows us to anticipate challenges, navigate complex legal issues, and achieve favorable outcomes for our clients.
Personalized Representation for Complex Legal Matters
Cosgrove Simpson offers the capabilities of a large litigation firm while maintaining the responsiveness and personal attention of a boutique practice. Clients work directly with experienced attorneys who are dedicated to protecting their interests throughout every stage of the legal process.
We proudly represent:
- Financial advisors and investment professionals
- Corporate executives and officers
- Small and mid-sized businesses
- Public and private companies
- Entrepreneurs and business owners
- Individual clients involved in complex litigation
Whether defending regulatory actions, resolving business disputes, or pursuing litigation, our attorneys provide practical advice, strategic advocacy, and results-focused representation.
Serving Clients Across Multiple Jurisdictions
Cosgrove Simpson is equipped to represent clients in state and federal courts throughout the United States. Our attorneys are admitted to practice before numerous courts, including:
- The Missouri Bar
- The Massachusetts Bar
- The Illinois Bar
- The Supreme Court of the United States
- United States District Court for the Eastern and Western Districts of Missouri
- United States District Court for the District of Massachusetts
- United States District Courts for the Southern and Central Districts of Illinois
- United States Court of Appeals for the Eighth Circuit
Our multi-jurisdictional experience enables us to effectively represent clients whose legal matters extend across state lines.
Committed to the St. Louis Community
Beyond the courtroom, Cosgrove Simpson is proud to be an active member of the St. Louis community. We regularly sponsor educational seminars, support charitable organizations, participate in community events, and contribute to local initiatives. Our commitment to service extends beyond our clients and reflects the values that define our firm.
When you need experienced trial lawyers who combine sophisticated legal knowledge with personalized client service, Cosgrove Simpson is prepared to protect your interests and advocate for your success.
