Experienced Trial, Antitrust, and Whistleblower Lawyers

WHAT WE DO

WORKING WITH YOU & FOR YOU

We’re a different kind of law firm. We apply our extensive legal knowledge and decades of experience. We work tirelessly for you from beginning to end. And together, we get results.

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Practice Groups

Antitrust Litigation & Counseling

Our attorneys are both experts in antitrust law and seasoned litigators. Our approach to every case, whether on the plaintiff’s side or the defense, is to be prepared to take the case to trial.

Whistleblower Representation

The Constantine Cannon Whistleblower Lawyer Team has extensive experience representing whistleblowers under the qui tam provisions of the False Claims Act, the Dodd-Frank Act, the IRS Whistleblower Law, and the wide array of other federal and state whistleblower reward laws.

Commercial Litigation

Constantine Cannon has broad experience representing plaintiffs and defendants in complex commercial litigations and arbitrations. Our reputation is built upon our central philosophy of aggressively and sensibly representing clients in all areas of commercial dispute.

Compliance, Monitoring & Investigations

Constantine Cannon conducts efficient and effective internal reviews and investigations for its clients. We provide critical value by establishing the independence of investigations, a key issue both in seeking reduced penalties in criminal actions and in minimizing civil litigation exposure.

E-Discovery Counseling

Our e-discovery practice group, comprised of a dedicated team of attorneys, project managers, and legal technology specialists is at the forefront of e-discovery theory and practice. We work closely with our clients to tailor creative and flexible discovery plans that mitigate both costs and litigation risk.

Government Affairs

Constantine Cannon has extensive experience representing clients before numerous federal and state agencies, including the Department of Justice, the Federal Trade Commission, the Federal Communications Commission, the Federal Reserve Bank, and the Attorney General of every state active in antitrust enforcement.

Intellectual Property & Technology

We represent high technology companies in the consumer electronics, software, internet, webcasting, retail, and reprographics industries in a variety of matters involving copyright, trademark, trade secret, and patent law. We regularly practice before federal district courts and courts of appeals, as well as arbitrations, administrative agencies and tribunals.

Offices

NewYork
New York
Constantine Cannon

6 E 43rd Street, 26th Floor
New York, NY 10017
T:212.350.2700

DC
Washington D.C.
Constantine Cannon

1001 Pennsylvania Ave, NW, Suite 1300N
Washington, DC 20004
T:202.204.3500

sanfrancisco
San Francisco
Constantine Cannon

150 California Street, Suite 1600
San Francisco, CA 94111
T:415.639.4001

Latest News, Publications & Speeches

May 16, 2024

Constantine Cannon partner Gordon Schnell quoted in Forbes on new legislation aimed at further protecting FAA whistleblowers. FAA Reauthorization Act Adds Peer Review Of Whistleblower Protections

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May 7, 2024

Constantine Cannon partner Gordon Schnell published in The Hill on how stronger whistleblower protections can prevent the next Boeing-type corporate fiasco.

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Constantine Cannon “can claim to have won two of the three largest antitrust settlements in U.S. history.” – Global Competition Review, 2012

April 16, 2024

Constantine Cannon partner Gordon Schnell quoted in BBC article on one of the Tesla whistleblowers and on the rise of high-tech whistleblowers.

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Constantine Cannon Named National Tier-1 “Best Law Firm” for Antitrust Law and Antitrust Litigation – U.S. News Best Lawyers 2020

Mar122024
The Supreme Court sent a message to corporate America about whistleblowers
Gordon Schnell

Constantine Cannon whistleblower partner Gordon Schnell published in The Hill on the Supreme Court’s recent decision in Murray v. UBS and why companies would be...

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