Nematzadeh PLLC

Nematzadeh PLLC is an evolved, unique civil and commercial litigation practice.  Since our launch, the Firm is already equipped with a demonstrated track record of results through a wealth of practitioner experience, especially in trials, on behalf of asset managers, small businesses, large corporations, government entities, public and private institutional investors, and individuals in United States federal and state courts, arbitration, and abroad. The Firm is headquartered in New York City but handles matters across the globe.

We regularly prosecute and defend arbitrations, class actions, collective actions, individual actions, and mass actions arising from laws concerning antitrust and unfair competition, securities, mergers and acquisitions, corporate fiduciary duties, consumer protection, deceptive business practices, mass torts, whistleblower and qui tam matters, intellectual property, real estate, and other types of civil litigation.

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The Firm is primarily focused on representing plaintiffs, with its leadership having experience practicing at some of the most prestigious plaintiffs-focused law firms in the world. The leadership has been involved in cases on behalf of plaintiffs that have collectively resulted in recoveries amounting to over $3.53 billion. The Firm also occupies the unique footing of being forged from leadership with experience at one of the most prestigious defense-focused law firms in the world, arming the legal team to defend complex commercial “bet the company” litigation.

Whether you have suffered losses from alleged unlawful conduct or are being sued, you need the strategic representation that we provide. Contact our office today to discuss your case in confidence. Having an evolved, unique law firm model, the Firm has a sustainable competitive advantage of being able to creatively formulate hybrid legal fees, including, without limitation, contingency fees, hourly fees, fixed fees, phased fees, success fees, and a combination thereof, to best align and partner long term with its clients. Welcome to Nematzadeh PLLC, your one-stop litigation practice.

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Antitrust and Unfair Competition Lawyers

We have extensive experience in antitrust litigation; antitrust has been called the “Bill of Rights” and “Magna Carta” of the competitive system of free enterprise. Enforcement of antitrust laws assures businesses the ability to compete in open marketplaces and provides businesses and consumers with goods and services at lower prices and with higher quality, diversity, and innovation.

Section 1 of the Sherman Antitrust Act of 1890 (15 U.S.C. § 1) outlaws “every contract, combination in the form of trust or otherwise, or conspiracy, in restraint of trade or commerce among the several States, or with foreign nations.” Section 2 of the Sherman Act (15 U.S.C. § 2) outlaws “monopolization, attempted monopolization, or conspiracy or combination to monopolize.”

Our success since our launch has been explosive. Within a year, we have leadership involvement in the following antitrust litigation:

  • Casey’s Distributing, Inc., et al. v. Major League Baseball, et al. (S.D.N.Y.)
  • Casey’s Distributing, Inc., et al. v. National Football League, Inc., et al. (S.D.N.Y.)
  • Dream Big Media, Inc., et al. v. Alphabet Inc., et al. (N.D. Cal.)
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Securities and Commodities Lawyers

We have extensive experience in securities, investor protection, and commodities litigation. The myriad of applicable laws include the Securities Act of 1933 (15 U.S.C. § 77a), Securities Exchange Act of 1934 (15 U.S.C. § 78a), Investment Advisers Act of 1940 (15 U.S.C. § 80b-1 through 15 U.S.C. § 80b-21), Commodities Exchange Act of 1936 (7 U.S.C. Ch. 1 § 1), and Employee Retirement Income Security Act of 1974 (29 U.S.C. Ch. 18 § 1001).

Examples of categories of matters that we handle include the following:

  • Fraud
  • Misrepresentations, Omissions, and Manipulative Practices
  • Unregistered Securities
  • Breach of Fiduciary Duties and Corporate Waste
  • Ponzi Schemes
  • Bribery
  • Cryptocurrency and Blockchain
  • Special Purpose Acquisition Companies (SPACs)  
  • Investment Advisors
  • FINRA Arbitration
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About Justin S. Nematzadeh

The Firm’s Founder & Managing Member, Justin S. Nematzadeh, has rare, sophisticated experience honed from practicing at one of the most prestigious worldwide defendants’ firms and at prestigious plaintiffs’ firms. He was a core member of the plaintiffs’ team in the In re Petrobras Securities Litigation (S.D.N.Y.), in which the team achieved a historic $3 billion settlement for the class. As of 2018, in terms of securities class actions, this was the largest settlement in a decade, the largest settlement ever involving a foreign issuer, the largest settlement ever achieved by a foreign lead plaintiff, the largest settlement ever that did not involve financial restatements, and in general, the fifth-largest class action settlement ever achieved in the United States.

In praising the lawyers who worked on this historic class action, the Honorable Judge Jed S. Rakoff of the United States District Court for the Southern District of New York stated that the “lawyers in this case [are] some of the best lawyers in the United States, if not in the world.”

Justin has also played roles in over a dozen other actions that resulted in total recoveries amounting to over $530 million for plaintiffs. He has been honored as a Rising Star under 40 years of age by Law360® in Class Actions, a prestigious award given to a select few “top litigators and dealmakers practicing at a level usually seen from veteran attorneys,” for which Law360® selected the 5 “winners after reviewing more than 1,200 submissions.” And he has been honored by Lawyers of Distinction® in securities law and Super Lawyers® as a Rising Star in antitrust and securities law for several years.

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Intellectual Property Lawyers:
Copyrights, Trademarks, Trade Secrets, and Licensing

Intellectual property rights are essential for establishing a company’s identity and distinguishing its goods and services in the marketplace. Being a significant investment and source of sustainable competitive advantage, intellectual property represents valuable assets. Infringement litigation can be complex for plaintiffs and defendants. 

We have extensive experience representing both plaintiffs and defendants in intellectual property infringement litigation, including copyright, trademark, trade secret, contract, licensing, non-disclosure agreement, and royalty disputes. 

False, deceptive, and unfair advertising litigation also falls within our experience. We are equipped to represent both plaintiffs and defendants in litigation concerning the Lanham Act of 1946 (15 U.S.C. § 1051) and state unfair competition laws. 

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Class Action Lawyers

​​We have extensive experience in class actions, mass actions, mass torts, and multi-district litigation. A class action is a lawsuit in which named representatives, whether they are businesses, entities, or individuals, bring an action on behalf of a larger group who suffered similar harm from the defendant’s alleged unlawful conduct. Class actions are often filed when it would be impracticable or prohibitively expensive for each plaintiff to file an individual action. Plaintiffs are thus enabled to seek recovery from large defendants possessing greater financial resources. Courts can decide the claims of many plaintiffs in one class action, which promotes efficiency and economy and extends justice.

We are widely respected for handling class actions over a wide range of disputes:

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Why Choose Us?

Our results speak for themselves: experience in cases recovering over $3.53 billion for plaintiffs; and robust sophistication in representing defendants in litigation. The Firm is equipped with a demonstrated track record of results through a wealth of experience—especially in trials—on behalf of a diversity of clients, whether they are individuals, classes, businesses of all sizes, entrepreneurs, asset managers, financial institutions, government entities, and public or private institutional investors in United States federal and state courts, arbitration, and abroad. We have been respected by judges, honored with prestigious awards, and above all, praised by our clients.  

By collaborating with a respected network of attorneys, economics and financial consultants, and experts worldwide, we are well-equipped to prosecute or defend class actions, mass actions, individual lawsuits, multi-district litigation, derivative actions, or arbitrations. Regardless of the forum – court, arbitration, mediation, or even private settlement – and complexity, you can be assured that we will partner long-term to protect and pursue your rights.

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Nematzadeh PLLC is here for you, whether you or your company have suffered losses, want to explore bringing suit, and need a sophisticated plaintiffs’ lawyer, or you or your company have been sued, are being investigated, and need a savvy defendants’ lawyer. Your initial contact is confidential and free. We are creative and can satisfy your litigation needs through a variety of legal-fee structures, including contingency fees, hourly fees, capped fees, and hybrid fees. Contact Nematzadeh PLLC by calling or emailing

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