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What we do

We represent whistleblowers for the same reasons that courageous men and women come forward to expose wrongdoing, injustice, or cheating: we believe in accountability, justice, and fairness, whether that’s for taxpayers, investors, consumers, competitors, or the government.

Our Clients Trust Us

Whistleblowing can be a stressful process stretching over many years. Our clients often work for many years to effect change before they call us. From our first conversation, we’ll listen to your story. If we work together, our team of whistleblower lawyers will be at your side with support and expert legal guidance at every turn – through government investigations, legal filings, settlement, or litigation if necessary. All along the way, we’ll help you understand what to expect and the best legal avenues for you and your case.

WHISTLEBLOWER LAWYERS
WITH
DEEP EXPERIENCE AND INTERNATIONAL SCOPE

Our clients come to us because they can’t stay silent about wrongdoing such as corporate fraud, false claims, overcharging, cheating, investor deception, price fixing, kickbacks, bribery, defective products, and tax evasion.

Our cases arise from business and industry, as well as those working with government contractors. Our cases come from within the United States and overseas. In our globalized world, international wrongdoing falls under U.S. whistleblower statutes when companies do business in the United States, are traded on U.S. stock exchanges, or have government contracts. Our team works coast to coast and internationally, with a full-service London office. We can communicate across 17 languages.

Clients come to us because they know that we have a track record of working closely with government attorneys, agents, and investigators. We make sure that the right federal and state government officials clearly hear our clients’ stories, and that those officials know that they can rely on our attorneys and our clients for the kind of reliable information and analysis that’s needed for a successful outcome.

We take on whistleblower cases of all types, characteristics and sizes. And our clients range from minimum-wage earners to management. Each case is important to us.

Making a Difference

During the last two decades, our committed whistleblower lawyers have recovered more than $450 million in awards for whistleblowers. Monetary rewards for whistleblowers arise from the recognition that whistleblowers often put their careers and livelihoods on the line to expose wrongdoing, and should be compensated for their role in recovering funds for the government, taxpayers, investors and others.
Whistleblowers come to us because we understand the complicated, constantly changing landscape of state and federal whistleblower laws. We have a proven track record of working closely and effectively with state and federal governments on behalf of our clients. We bring to our cases the kind of resources and staying power that government sometimes can’t.
As whistleblower lawyers, we have successfully represented clients under the False Claims Act and whistleblower laws that apply to the Internal Revenue Service, Securities and Exchange Commission, the Commodity Futures Trading Commission, as well as state statutes and other programs.

Click here for a confidential contact or call:

1-212-350-2774

Whistleblower Cases

Handled by CC Attorneys.

KBR – Defense Contracting Fraud ($108.75 million)

Constantine Cannon represented whistleblowers Geoffrey Howard and Zella Hemphill Anderson in a False Claims Act case against defense contractor KBR Inc. that resulted in the...

July 06, 2023
Hyundai Motors and Kia Motors – Concealing safety defects ($210 million)

Constantine Cannon represented whistleblower Gwang Ho Kim, a former engineer at Hyundai who exposed Hyundai and Kia’s efforts to deceive U.S. vehicle safety regulators about...

November 09, 2021
Sutter Health – Medicare Advantage Fraud ($90 million)

Constantine Cannon represented whistleblower Kathy Ormsby in a False Claims Act litigation against Sutter Health and its affiliates that resulted in a $90 million settlement...

August 30, 2021
Hyundai Oilbank Co., S-Oil Corporation, et al — Government Contract Fraud/Bid-Rigging ($363 million)

A team of our whistleblower attorneys led the representation of an anonymous whistleblower who provided extensive assistance to the U.S. government in its criminal and...

April 04, 2019
Wireless Carriers – Government Contracting Fraud ($138.7 million)

Constantine Cannon represented whistleblower OnTheGo Wireless, LLC, in state False Claims Act litigation against the four largest U.S. wireless carriers, AT&T Mobility, Verizon Wireless, Sprint,...

September 24, 2020
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Learn about Whistleblower Rewards Programs

False Claims Act State & Local False Claims Acts SEC Program CFTC Program IRS Program
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Whistleblower Insider Blog Posts

Sep262023
Catch of the Week: Gramercy Cardiac Diagnostic Services

This week's Department of Justice (DOJ) Catch of the Week goes to Gramercy Cardiac Diagnostic Services and its owner Klaus Peter Rentrop.  Gramercy provides cardiac...

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Sep222023
In Their Own Words. . . .Rice University Political Science Professor Mark Jones

"[T]he reality is that if you’re a whistleblower, at a very high level you saw a group of well-respected, conscientious whistleblowers go to the FBI...

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Sep202023
CFTC Awards $15 Million to Two Whistleblowers

Yesterday (September 19), the Commodity Futures Trading Commission (CFTC) announced its award of $15 million to two whistleblowers.  Keeping to its commitment of protecting the...

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Sep192023
SEC Takes a Stand Against Companies Trying to Silence Whistleblowers - AGAIN!

Last Friday (September 8), Monolith Resources agreed to pay $225,000 to settle Securities and Exchange Commission (SEC) charges of using employee separation agreements that violated...

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