30 Best Law Firms in California for Class Action Lawsuits

Finding the right class action law firm in California can make the difference between winning substantial compensation and walking away empty-handed. Whether you’re facing consumer fraud, employment violations, defective products, or securities fraud, California’s top class action attorneys have recovered billions of dollars for clients across the state.

Class action lawsuits allow groups of people who’ve experienced similar harm to unite against powerful corporations, leveling the playing field when individual claims might seem too small to pursue alone. California has more than 2,000 class action lawyers with varying specialties and track records, but only the most experienced firms consistently deliver results.

This comprehensive guide reveals the 30 best law firms in California for class action lawsuits. These elite firms combine decades of complex litigation experience with proven track records in securing favorable settlements and verdicts. From Los Angeles to San Francisco, Sacramento to San Diego, these attorneys have established reputations for aggressive advocacy, strategic case management, and securing maximum compensation for their clients.

What Makes a Great Class Action Law Firm in California?

Before diving into our list of the best class action law firms, understanding what separates exceptional firms from average ones helps you make informed decisions about legal representation.

Proven Track Record and Case Results

The best California class action attorneys demonstrate their capabilities through substantial settlement amounts and successful verdicts. Top firms have recovered hundreds of millions, even billions, in total damages for clients. Look for firms that regularly serve as lead counsel or co-lead counsel in major multidistrict litigations and complex cases.

Experience with Complex Litigation

Class action lawsuits involve intricate procedural requirements, particularly around class certification. Elite firms understand Federal Rule of Civil Procedure 23 and California Code of Civil Procedure Section 382. They know how to navigate the “CANT” criteria: commonality, adequacy, numerosity, and typicality.

Resources and Expertise

Successful class action litigation requires significant resources. The best law firms employ expert statisticians, economists, and industry specialists. They have the financial capacity to fund expensive litigation against well-funded corporate defendants who will fight aggressively.

Specialized Practice Areas

While some firms handle multiple types of class action cases, many specialize in specific areas such as:

• Securities fraud and shareholder rights
• Consumer protection and false advertising
• Employment law violations and wage theft
• Antitrust and unfair competition
• Product liability and defective products
• Data breach and privacy violations
• Environmental and toxic tort cases

The 30 Best Law Firms in California for Class Action Lawsuits

1. Robbins Geller Rudman & Dowd LLP

Robbins Geller stands as one of the world’s premier class action law firms with offices throughout California, including San Diego, San Francisco, and Los Angeles. The firm recovered over $916 million for investors in 2025 alone, earning the #1 ranking from Institutional Shareholder Services Securities Class Action Services.

Key Achievements:

• Secured the largest securities class action recovery in history: $7.2 billion in the Enron case
• Obtained the largest consumer class action recovery: $17+ billion in the Volkswagen emissions scandal
• Recovered the largest antitrust class action settlement: $5.5 billion against Visa/MasterCard

The firm’s 200+ attorneys specialize in securities fraud, consumer protection, antitrust litigation, employment discrimination, and shareholder derivative actions. Their comprehensive approach makes them formidable opponents against the largest corporations worldwide.

2. Hagens Berman Sobol Shapiro LLP

Founded in 1993, Hagens Berman has achieved total victories and settlements valued at more than $345 billion for class members and clients. Managing partner Steve Berman served as co-lead counsel against Big Tobacco in the largest settlement in history and led major cases against the NCAA and Volkswagen.

Areas of Excellence:

• Antitrust litigation including pharmaceutical price-fixing
• Consumer fraud and deceptive business practices
• Automotive defects and emissions violations
• Securities and investor fraud
• Civil and human rights litigation

The firm’s aggressive advocacy and thorough case preparation have earned recognition from federal judges nationwide. With offices across California and the United States, they handle complex cases involving thousands of class members.

3. Lieff Cabraser Heimann & Bernstein LLP

Recognized by The American Lawyer as “one of the nation’s premier plaintiffs’ firms,” Lieff Cabraser has offices in San Francisco, New York, and Nashville. Founded in 1972, this 70+ attorney firm has litigated and resolved hundreds of class action lawsuits over nearly five decades.

Notable Successes:

• $215 million settlement in USC/Dr. Tyndall sexual assault case
• Leading role in Toyota sudden acceleration litigation
• Major data breach and privacy settlements
• Product liability victories in medical device and pharmaceutical cases

The firm excels in gender discrimination, defective medical devices, consumer protection, and data privacy cases. Their attorneys combine legal expertise with compassionate client service.

4. Wilshire Law Firm

Established in 2007, Wilshire Law Firm has recovered more than $900 million for clients through personal injury and class action lawsuits. Based in Los Angeles at 3055 Wilshire Boulevard, the firm specializes in consumer protection and workplace violations throughout California.

Practice Focus:

• Wage and hour class actions
• Private Attorneys General Act (PAGA) claims
• Consumer fraud litigation
• Personal injury and mass torts

U.S. News & World Report ranked Wilshire among the “Best Law Firms” for three consecutive years from 2020 to 2022. Attorney Aram Boyadjian brings extensive expertise in employment law class actions.

5. Cutter Law P.C.

Cutter Law operates as a respected California-based personal injury and civil justice firm serving clients statewide and nationwide. With offices in Sacramento and throughout California, the firm’s class action attorneys have won over $100 million for clients.

Key Practice Areas:

• Consumer fraud and deceptive business practices
• Product liability including defective medical devices
• Whistleblower and government fraud cases
• Workplace violations and wage theft

The firm’s trial attorneys possess over 20 years of legal experience and have secured notable settlements including multi-million dollar recoveries in whistleblower cases against major medical device manufacturers.

6. Bisnar Chase Personal Injury Attorneys, LLP

With over 46 years of experience representing class members, Bisnar Chase maintains an impressive 99% success rate. The firm has recovered more than $900 million in compensation for clients, with total victories exceeding $1 billion.

Settlement Highlights:

• Extensive experience in consumer protection cases
• Product liability including defective products
• Class action lawsuits against major corporations
• Workplace violations and employment disputes

Based in Orange County with representation throughout Los Angeles, San Francisco, and beyond, Bisnar Chase works on a contingency fee basis, meaning clients pay nothing unless they win.

7. Joseph Saveri Law Firm

Joseph Saveri Law Firm consistently serves in leadership roles in some of the nation’s most important class action cases. The firm has earned over $4 billion in damages relief for clients in federal and state jurisdictions.

Major Victories:

• $399 million settlement in re Cipro Cases (pharmaceutical antitrust)
• Co-Lead Class Counsel in High-Tech Employees Antitrust Litigation against Google, Apple, and other tech giants
• Leadership positions in multiple pharmaceutical price-fixing cases
• Ongoing representation in major antitrust and consumer protection matters

The San Francisco-based firm excels at managing parallel investigations involving federal and state regulators. Their expertise spans antitrust, consumer fraud, and employment law violations.

8. Singleton Schreiber LLP

Singleton Schreiber has built a national reputation for fearless advocacy in class action lawsuits and mass tort litigation. The firm’s attorneys include partners featured in major media outlets and legal publications for their groundbreaking work.

Current Focus:

• Corporate misconduct and financial fraud
• Product liability and defective products
• Immigration rights and civil liberties
• Consumer protection and false advertising

Managing partner Brett Schreiber was recognized by The Daily Journal as a leading commercial litigator. The firm handles cases ranging from bank fraud to product defects, always prioritizing client interests.

9. Pearson Warshaw LLP

Pearson Warshaw has established itself as a leading firm for consumer protection cases with notable successes against large corporations. The firm serves as lead or co-lead counsel in numerous high-profile cases throughout California.

Areas of Expertise:

• Consumer fraud and deceptive advertising
• Employment law violations
• Data breach and privacy cases
• Product liability litigation

Their track record includes significant jury verdicts and settlements that have cemented their position among California’s elite class action firms. Claims administrators value the firm’s expertise in consumer-related class actions.

10. Boucher LLP

Founded by Raymond Boucher, who began his legal career in 1984, Boucher LLP specializes in representing plaintiffs in class action lawsuits and mass tort cases. Raymond Boucher has been recognized by Super Lawyers consistently from 2004 to 2025.

Notable Achievements:

• Significant experience in employment law cases
• Consumer protection litigation
• Data breach class actions
• Mass tort representation

The firm’s attorneys handle the entire class certification process while ensuring client interests remain protected throughout litigation. Their substantial peer recognition demonstrates commitment to quality representation.

11. Kazerouni Law Group, APC

Based in Costa Mesa, Kazerouni Law Group brings extensive experience representing clients in various class action matters throughout California. The firm combines aggressive, results-oriented advocacy with comprehensive knowledge of consumer protection laws.

Practice Concentrations:

• Fair Debt Collection Practices Act violations
• Telephone Consumer Protection Act cases
• Consumer fraud and misleading advertising
• Privacy violations and unwanted communications

The firm offers free consultations and has a proven track record representing consumers in complex class actions. They understand both Federal Rule of Civil Procedure 23 and state court requirements.

12. Lawyers for Justice, P.C.

Lawyers for Justice operates throughout Los Angeles and California, handling class action and mass tort cases with proven success. The firm’s attorneys, including Edwin Aiwazian and other experienced litigators, represent clients in various complex litigation matters.

Key Focus Areas:

• Employment law violations
• Consumer protection cases
• Mass tort litigation
• Civil rights violations

With offices in the Los Angeles area, the firm serves clients throughout California in cases requiring extensive resources and litigation experience.

13. Setareh Law Group

Founded in 1999 by Shaun Setareh, this firm stands up for employees wronged in the workplace. Setareh Law Group handles wage theft, wrongful termination, sexual harassment, and other workplace violations through both individual and class action representation.

Employment Law Expertise:

• Wage and hour violations
• Wrongful termination
• Workplace discrimination and harassment
• PAGA representative actions

The firm’s commitment to employee rights has established them as trusted advocates for California workers facing corporate misconduct.

14. Girard Sharp LLP

Girard Sharp serves as co-lead class counsel in major cases including the $215 million USC/Tyndall settlement. Led by Daniel C. Girard, the firm handles complex class action lawsuits throughout California and nationwide.

Practice Areas:

• Sexual harassment and assault cases
• Securities fraud
• Consumer protection
• Civil rights litigation

Their role in high-profile cases demonstrates the firm’s capability to handle sensitive, complex matters involving thousands of victims.

15. Cotchett Pitre & McCarthy LLP

Based in the Bay Area, Cotchett Pitre & McCarthy has earned recognition for exceptional trial work in class action and complex litigation. The firm played leading roles in major cases including Toyota litigation.

Areas of Excellence:

• Securities fraud and investor protection
• Antitrust violations
• Public interest litigation
• Class certification and trial work

Their attorneys bring decades of combined experience to each case, ensuring clients receive sophisticated representation.

16. Susman Godfrey LLP

Susman Godfrey operates offices in Los Angeles and has participated in leadership positions in major multidistrict litigation. The firm’s trial-focused approach sets them apart in class action representation.

Key Strengths:

• Trial experience in complex cases
• Antitrust litigation
• Securities and business litigation
• Intellectual property disputes

Their willingness to take cases to trial when necessary often results in favorable settlements for class members.

17. McCune Wright Arevalo LLP

This Ontario-based firm handles class action lawsuits throughout California, focusing on consumer protection and employment law matters. The firm’s attorneys bring substantial trial experience to complex litigation.

Practice Focus:

• Wage and hour violations
• Consumer fraud
• Product liability
• Employment discrimination

Their commitment to workers’ rights and consumer protection drives successful outcomes for class members.

18. Capstone Law APC

Capstone Law represents employees and consumers in class action lawsuits throughout California. The Los Angeles-based firm specializes in employment law violations and consumer protection matters.

Areas of Representation:

• Employment class actions
• Wage theft and overtime violations
• PAGA representative actions
• Consumer fraud cases

The firm’s focused practice allows them to develop deep expertise in employment and consumer law.

19. The Dominguez Firm

With offices throughout California, The Dominguez Firm handles class action cases alongside personal injury matters. Their resources and experience benefit clients in complex litigation.

Practice Areas:

• Consumer protection
• Product liability
• Mass tort litigation
• Employment law cases

The firm’s statewide presence ensures California residents can access experienced class action representation.

20. Custis Law, P.C.

Custis Law focuses on employment law class actions and PAGA representative actions throughout California. The firm’s attorneys possess extensive experience in wage and hour litigation.

Employment Focus:

• Wage and hour violations
• Meal and rest break disputes
• Misclassification cases
• PAGA claims

Their specialized focus on employment matters provides clients with attorneys who understand California’s complex labor laws.

21. Shegerian & Associates

This Los Angeles-based firm handles employment law class actions and individual cases throughout California. Their attorneys fight for workers’ rights in wage theft, discrimination, and wrongful termination cases.

Key Practice Areas:

• Wage and hour class actions
• Workplace discrimination
• Wrongful termination
• Harassment and retaliation

The firm’s commitment to employee advocacy has resulted in significant recoveries for California workers.

22. Consumer Attorneys of California Member Firms

Many smaller boutique firms belong to Consumer Attorneys of California, bringing collective expertise to class action and consumer protection cases throughout the state.

Collective Strengths:

• Consumer fraud litigation
• Product liability cases
• Lemon law and automotive defects
• Insurance bad faith

Member firms share resources and knowledge to better serve California consumers.

23. Schneider Wallace Cottrell Konecky LLP

This San Francisco firm handles securities fraud, consumer protection, and employment law class actions nationwide, with significant California presence.

Practice Areas:

• Securities fraud
• Consumer class actions
• Employment discrimination
• Whistleblower cases

Their national reach combined with California expertise benefits clients in complex litigation.

24. Wolf Haldenstein Adler Freeman & Herz LLP

With a California office, Wolf Haldenstein handles securities class actions and consumer fraud cases. The firm’s national presence supports California clients in complex litigation.

Key Focus:

• Securities fraud
• Antitrust violations
• Consumer protection
• Class certification expertise

Their experience in major cases provides clients with sophisticated representation.

25. Glancy Prongay & Murray LLP

This Los Angeles firm focuses on securities fraud and shareholder rights litigation, serving California investors in class action lawsuits against public companies.

Practice Concentrations:

• Securities class actions
• Shareholder derivative actions
• M&A litigation
• Consumer fraud

Their specialized focus on securities law benefits California investors seeking to recover losses.

26. Kahn Swick & Foti, LLC

Operating in California, Kahn Swick & Foti handles securities fraud and consumer protection class actions, representing investors and consumers throughout the state.

Areas of Expertise:

• Securities litigation
• Consumer class actions
• Product liability
• Antitrust cases

The firm’s national experience supports California clients in complex litigation matters.

27. Rosen Law Firm

With California operations, Rosen Law Firm focuses on securities class action lawsuits, representing shareholders who’ve suffered losses due to corporate fraud and misconduct.

Primary Focus:

• Securities fraud
• Shareholder litigation
• Corporate governance
• Investor protection

Their specialized practice serves California investors seeking to recover investment losses.

28. Pomerantz LLP

Operating in California, Pomerantz handles securities fraud and corporate governance class actions, bringing decades of experience to investor protection cases.

Key Strengths:

• Securities class actions
• Shareholder rights
• Corporate fraud
• Class certification expertise

The firm’s long history in securities litigation benefits California investors.

29. Bleichmar Fonti & Auld LLP

This firm operates in California handling securities fraud and complex litigation, representing institutional investors and individual shareholders in class action lawsuits.

Practice Focus:

• Securities litigation
• Antitrust cases
• Consumer fraud
• Investor rights

Their expertise in complex financial cases serves California investors seeking justice.

30. The Lanier Law Firm

With California representation, The Lanier Law Firm handles product liability, consumer protection, and pharmaceutical litigation through class actions and mass torts.

Areas of Excellence:

• Product liability
• Pharmaceutical litigation
• Consumer protection
• Mass tort cases

The firm’s trial experience and resources benefit California clients in complex litigation.

Types of Class Action Cases in California

Understanding the different types of class action lawsuits helps determine which California law firms best match your needs.

Securities Fraud and Investor Rights

Securities class actions protect investors who’ve suffered losses due to corporate fraud, accounting irregularities, or misleading statements. Firms like Robbins Geller and Pomerantz specialize in this area, representing shareholders in cases against public companies.

Consumer Protection and False Advertising

Consumer fraud cases involve deceptive business practices, false advertising, defective products, and unfair competition. Hagens Berman, Lieff Cabraser, and many other California firms excel in holding corporations accountable for misleading consumers.

Employment Law and Wage Violations

Wage and hour class actions address unpaid overtime, meal and rest break violations, misclassification, and other employment law violations. California’s strong labor protections make these cases particularly important, with firms like Wilshire Law Firm and Custis Law leading the way.

Product Liability and Defective Products

Product liability class actions involve dangerous or defective products that harm consumers. From automotive defects to pharmaceutical injuries, firms like Bisnar Chase and Cutter Law represent victims of corporate negligence.

Antitrust and Unfair Competition

Antitrust class actions challenge monopolistic practices, price-fixing, and anti-competitive behavior. Joseph Saveri Law Firm and Robbins Geller have secured billions in antitrust settlements.

Data Breach and Privacy Violations

With increasing data breaches, privacy class actions hold companies accountable for failing to protect consumer information. Many top firms now maintain dedicated data breach practice groups.

How to Choose the Right Class Action Law Firm

Selecting the best class action attorney requires careful consideration of several factors beyond basic qualifications.

Evaluate Experience and Track Record

Review the firm’s history of class action settlements and verdicts. The best California class action lawyers demonstrate consistent success in securing substantial recoveries. Look for firms that regularly serve as lead counsel rather than just participating firms.

Consider Resources and Capabilities

Complex litigation requires significant financial resources. Top firms can fund expensive expert witnesses, document review, and extended litigation against well-funded defendants. Smaller firms may struggle with resource-intensive cases.

Assess Communication and Client Service

The best law firms maintain open communication with class members, keeping clients informed throughout the litigation process. During consultations, evaluate whether attorneys listen carefully and explain options clearly.

Verify Specialization

While some firms handle multiple practice areas, specialized expertise often produces better results. Securities fraud cases require different skills than employment law matters. Choose firms with proven experience in your specific type of case.

The Class Action Process in California

Understanding how class action lawsuits work helps set realistic expectations about timelines and outcomes.

Filing and Initial Investigation

Class action attorneys conduct thorough investigations before filing complaints. They interview potential class members, review documents, and consult experts to build strong cases.

Class Certification

The most critical stage involves obtaining class certification from the court. Attorneys must demonstrate commonality, adequacy, numerosity, and typicality. California follows both federal rules and state procedures for class certification.

Discovery and Motion Practice

After class certification, extensive discovery occurs. Both sides exchange documents, take depositions, and file motions. This phase can last months or years in complex cases.

Settlement Negotiations or Trial

Most class actions settle before trial, though settlement negotiations may occur at any stage. Lead counsel must obtain court approval for settlements, ensuring fairness to all class members.

Understanding Class Action Settlements and Compensation

Class action settlements vary widely based on case type, damages, and the number of class members involved.

Settlement Fund Distribution

Courts approve settlement amounts, which get distributed to class members after deducting attorney fees and administrative costs. Distribution methods vary by case complexity.

Attorney Fees in Class Actions

Class action attorneys typically work on contingency, receiving a percentage of the recovery. Courts review fee requests to ensure reasonableness. Fees generally range from 25-33% but can vary based on case complexity and results achieved.

Timeline Expectations

Class action lawsuits take time. Simple cases may resolve in 1-2 years, while complex securities fraud or antitrust cases can last 5-10 years or longer. The best attorneys manage expectations realistically.

Recent Developments in California Class Action Law

California class action law continues evolving through court decisions and legislative changes.

PAGA Representative Actions

Private Attorneys General Act claims have become increasingly important in employment law cases. Many California class action firms now handle both traditional class actions and PAGA representative actions.

Arbitration and Class Waivers

Recent Supreme Court decisions have limited class action rights in cases involving arbitration agreements. However, California courts continue protecting consumers and employees where possible.

Data Privacy and Technology Cases

New privacy laws create additional opportunities for class action lawsuits involving data breaches, unauthorized data collection, and privacy violations. Top firms have developed specialized practices in this growing area.

Authoritative Resources for Class Action Information

For additional information about class action lawsuits and your legal rights, consult these authoritative sources:

The State Bar of California provides resources for finding qualified attorneys and understanding legal rights in California. Their lawyer referral services can help connect you with class action attorneys in your area.

The Federal Judicial Center offers educational materials about federal class action procedures, including guides for judges and attorneys handling complex litigation.

Conclusion

Choosing from the 30 best law firms in California for class action lawsuits requires careful evaluation of experience, resources, specialization, and track record. Whether facing consumer fraud, employment violations, securities fraud, or product liability issues, these elite firms have demonstrated their ability to secure substantial recoveries for class members. The best California class action attorneys combine aggressive advocacy with sophisticated legal strategies, leveling the playing field against powerful corporate defendants. By selecting experienced class action lawyers who specialize in your specific type of case, you maximize your chances of obtaining fair compensation and holding wrongdoers accountable for their misconduct.