Since 1988, Kohn, Kohn & Colapinto has represented courageous whistleblowers who report fraud, misconduct, or abuse, and seek rewards under various U.S. whistleblower award programs and international laws.
Since 1988, Kohn, Kohn & Colapinto has represented courageous whistleblowers who report fraud, misconduct, or abuse, and seek rewards under various U.S. whistleblower award programs and international laws.
We are the Whistleblower Lawyers Behind the Biggest Cases in History.
We’re the firm whistleblowers call when they’re up against powerful people. The ones who have been on the forefront of whistleblowing since it became a term. We bring together the world’s best legal talent to help whistleblowers win. The collaborative nature of our firm ensures clients get the attention they deserve for doing what’s right.
“The only lawyer on my side was Stephen M. Kohn. He was as smart as they come and feisty as a pit bull. Steve was convinced the government owed me a fat reward, and he was going to get it, or die trying.”
“Most law firms it really is all about billable hours. For these guys it’s all about the justice.”
“They fought tooth and nail for me.”
“We would like to express our appreciation for all your efforts. Whatever the outcome, your perseverance and conviction on our behalf means so much to us. You both have been supportive, honest and dedicated when no one cared to listen. You are both exceptional. We thank you sincerely…”
Core Values
Our approach is guided by our honest dedication to quality, team spirit, and commitment to core values.
Dedicated Client Focus
We are dedicated to our clients above all else. That means listening to your needs and working efficiently to accomplish your goals and get results.
Top Legal Expertise
We have helped clients obtain the largest rewards in history. We’ve won precedent setting cases, and have been major contributors to modern whistleblower law.
Pro Bono Excellence
Our team is focused on tackling the most challenging social justice issues that affect whistleblowers. We engage in policy and advocacy work, including amicus curiae.
Record Compensation
The only firm to have won 3 cases in which whistleblowers were paid over $100M. This includes major rewards in all of the areas, Dodd-Frank, FCPA, IRS, FCA.
Collaborative Culture
Our firm works as a team to help whistleblowers understand their rights and legal options. And more importantly, to help them win their case and maximize outcomes.
Internationally-Minded
We work actively with NGOs, governments, and organizations all over the world, educating them about the use and development of transnational whistleblower laws.
Our Team
Our team is comprised of the world’s most accomplished whistleblower attorneys, experts, and lawmakers.
KKC Welcomes the Newest Member of Our Team: Former SEC Commissioner Allison Herren Lee
Lee’s commitment to protecting whistleblowers is exemplified by what she said as an SEC Commissioner:
“[Whistleblowers] display extraordinary bravery to expose fraud and wrongdoing, and to shine light in some very dark places. In doing so, they reinforce our fundamental values – that the rule of law matters, and no one is, or should be, above the law.”
Founding Partner
Celebrated as a pioneer of today’s modern whistleblower laws, and recognized as Forbes’ America’s Top 200 Lawyers.
Founding Partner
Internationally-recognized as a leading whistleblower attorney who has been victorious in setting several legal precedents.
Founding Partner
Leading whistleblower attorney and expert across all whistleblower disciplines, and behind the world’s largest rewards.
Former SEC Enforcement Attorney Andrew Feller Joins Kohn, Kohn & Colapinto as Senior Special Counsel
“I have long admired KKC’s work as passionate advocates for their whistleblower clients and champions for strong and effective whistleblower programs and policies. KKC has played the most significant role in ensuring that the SEC’s regulations serve the public interest and have won many of the most important enforcement cases under Dodd-Frank. KKC deserves its reputation as the leading whistleblower firm. I could not be more excited to join the firm”
Managing Partner
Mary Jane has litigated cases involving False Claims Act, qui tam, environmental, and nuclear industry whistleblowers.
Partner
Focuses on representing qui tam whistleblowers in both federal litigation and whistleblower reward programs.
Senior Special Counsel
Represents clients in securities and commodities fraud cases, foreign corruption, and money laundering.
Associate
Kayla provides representation to whistleblowers in federal court and administrative agency proceedings with a focus on the firm’s trial and appellate litigation projects.
Associate
Ben is responsible for assisting clients with whistleblower reward programs.
Associate
Allison represents whistleblowers under Dodd-Frank and the money laundering whistleblower laws.
Our Whistleblower Lawyers Have Achieved The Highest Ratings in the Legal Industry
The founding partners at Kohn, Kohn & Colapinto have obtained the highest peer review ratings for compettence and ethics by Martindale-Hubbell® and are members of the Bar Register of Preeminent Lawyers. AV Preeminent® is a significant rating accomplishment – a testament to the fact that a lawyer’s peers rank him or her at the highest level of professional excellence.
Our Cases
We’ve represented whistleblowers in some of largest cases in history – some leading to record-breaking rewards.
$2 BILLION RECOVERED
Wilkinson blew the whistle on a $200 billion Russian money-laundering scandal that moved rubles out of Russia, converted them to dollars at Danske Bank Estonia Branch, then to moved the dollars to New York.
$104 MILLION REWARD
Birkenfeld was an international banker working at UBS Bank in Switzerland, and exposed a massive tax evasion scheme that forced UBS to turn over the names of over 4,450 U.S. tax evadors and pay a $780 fine to the IRS.
Whistleblower Protected
Bunny Greenhouse served as the highest-ranking civilian-contracting official at the Army Corps of Engineers. She exposed a corrupt $7 billion no-bid contract to Halliburton for the repair of Iraqi oil fields following the 2003 invasion. She faced harsh faced retaliation, but ultimately won compensation and reforms.
Pro Bono
The pro bono work that we dedicate our time to is unparalleled in the area of whistleblower law.
KKC has proudly represented federal employees in several groundbreaking cases, helping them leverage these alternative legal avenues to fight retaliation.
Stephen M. Kohn and the partners at Kohn, Kohn and Colpainto have given numerous U.S. sponsored seminars and presentations on topics related to international whistleblowing and anti-corruption, and has organized numerous educational programs.
Kohn, Kohn & Colapinto has a distinguished record of advocating for transparency and reform at the highest levels of government. Our attorneys have represented numerous clients in high-profile oversight investigations and hearings conducted by the U.S. Senate and House of Representatives.
Practice Areas
Explore Our Legal Specialties
Latest News & Insights
Whistleblower News and Qui Tam Blog
Published on May 29, 2025
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