Tammy Marzigliano

Partner

My Legal Practice

I represent high-powered Wall Street and public company whistleblowers, helping them navigate the diverse range of issues that arise when they report corporate misconduct. I also represent professionals and executives who are dealing with career-defining challenges, and want a tough-as-nails litigator who's just as comfortable negotiating a quiet resolution.

Whistleblowers

My whistleblower practice has evolved alongside new statutory frameworks such as Sarbanes-Oxley and Dodd-Frank, which have radically changed the rights and protections available to employees who report wrongdoing. Over the past two decades, I’ve successfully guided dozens of corporate whistleblowers through their reporting journeys, helping them address the maze of concerns that can arise, including retaliation and termination at the hands of their employer.

Ultimately, this work has led to several precedent-setting SEC and IRS whistleblower awards, including a $263 million IRS tax fraud recovery – the largest in history – and the SEC’s first ever-fine against an employer, based on a retaliation claim.

In these and other successes, my clients have helped to shed the stigma of reporting misconduct, while ushering in a new era of accountability in corporate America.

Professionals & Executives Representation

I also represent professionals and executives who are dealing with highly nuanced situations tied to retaliation, harassment, sexual assault, discrimination, and other employer misconduct.

Frequently, these situations involve Fortune 500 employers with deep resources, who are formidable adversaries in the courtroom and the boardroom. I’ve taken on dozens of the largest and most powerful employers in America, quietly resolving matters quietly and aggressively pursuing litigation to seek the justice my clients deserve.

In every situation, my clients benefit from the passion, tenacity, and creativity I bring to the table, and my significant experience negotiating with large employers in finance, tech, retail, healthcare and other industries.

Notable Matters

Secured a multimillion-dollar settlement for an A-list celebrity employee who was sexually harassed and assaulted by a famous media executive.
Represented a healthcare executive in the successful appeal of federal False Claims Act and retaliation claims (Guilfoile v. Shields), and the subsequent settlement of the case.
Represented more than 100 professionals who were wrongfully terminated by a Fortune 50 technology company, securing numerous multimillion-dollar settlements.
Represented an employee whistleblower whose information led the SEC to issue the first-ever fine against an employer based on a retaliation claim.
Represented an employee whistleblower who faced retaliation, whose information led to a $263 million IRS tax fraud recovery, the largest in history.
Obtained a $71.5 million arbitration award on behalf of a group of employees in a profit participation plan, noted as one of the largest employment arbitration awards in history.

Credentials

B.A., Hofstra University
J.D., Quinnipiac University School of Law
Admitted to practice in New York and Connecticut
Co-chair, Whistleblower Subcommittee of the American Bar Association (ABA) Employee Rights and Responsibilities Committee
Former Chair, Employment Rights Executive Board of the American Association for Justice (AAJ) Employment and Labor Relations Law Committee
Former member, Employment and Labor Relations Committee, ABA Litigation Section
Member, The Anti-Fraud Coalition
Member, National Employment Lawyers Association and its New York affiliate, NELA/NY
Member, New York State Bar Association
Member, New York City Bar Association
SuperLawyers, 2013-2025
Best Lawyers, 2018-2025
Lawdragon 500 Civil Rights & Plaintiff Employment Lawyer, 2018-2025

For most people, work is more than just a job; it’s an inherent part of their identity and a gauge of self-worth. I don’t represent employees. I represent people.

Tammy Marzigliano

My Story

I like to think that the desire for justice and the passion to pursue it, are written on a person’s DNA. As a litigator, negotiator and advocate, I work tirelessly to secure positive resolutions for my clients. In doing so, I focus on fairness and compassion, and a mindset where doing the right thing for my client is everything.

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