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Best Antitrust Litigation Lawyers in Chicago, Illinois

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Bailey Glasser
Lawsuits & Disputes specialty
Serves Chicago remotely from Birmingham

Founded in 1999
123 people in their team
English
Lawsuits & Disputes Antitrust Litigation General Litigation +6 more
Founded by Ben Bailey and Brian Glasser in 1999 in Charleston, West Virginia, Bailey Glasser has grown to include 76 lawyers, with 17 offices across the United States. The firm’s complex litigation practice focuses on high-stakes commercial litigation; class actions for consumers, insureds,...
Gordon Rees Scully Mansukhani, LLP.
Serves Chicago remotely from San Francisco

Founded in 1974
1,688 people in their team
English
Antitrust Litigation International Arbitration Construction Disputes +2 more
As the only law firm with offices and attorneys in all 50 states, we deliver maximum value to our clients by combining the resources of a full-service national firm with the local knowledge of a regional firm. Featuring more than 1,000 lawyers nationwide, we provide comprehensive litigation and...
Howard & Howard Attorneys PLLC
Serves Chicago remotely from Royal Oak

Founded in 1869
304 people in their team
English
Antitrust Litigation International Arbitration Construction Disputes +2 more
Howard & Howard is a full-service law firm with a national and international practice that provides legal services to businesses and business owners. The firm has offices in Royal Oak, Michigan; Illinois (Chicago and Peoria); Las Vegas, Nevada; and Beverly Hills, California. From our...
Skadden, Arps, Slate, Meagher & Flom LLP
Serves Chicago remotely from Boston

Founded in 1948
1,700 people in their team
English
Antitrust Litigation International Arbitration Construction Disputes +2 more
The traits that fueled Skadden’s rise from a New York startup to a global powerhouse - collaborative, innovative, persistent - continue to define our firm culture. We remain intensely focused on the simple formula of developing an inclusive complement of extraordinary attorneys, working together...
Lawsuits & Disputes specialty
Chicago, United States

Founded in 2012
3 people in their team
English
Lawsuits & Disputes Antitrust Litigation International Arbitration +9 more
Mayerbock Law Firm is a Chicago-based, full-service law firm known for industry leading legal services in the transportation sector. Led by founder and principal attorney Patrick J Mayerbock, the firm serves clients nationwide while operating from offices in Chicago, Park Ridge, Illinois, and...
Jones Day
Serves Chicago remotely from Munich

Founded in 1893
2,500 people in their team
English
Antitrust Litigation International Arbitration Construction Disputes +2 more
Jones Day has a history of more than 125 years and a culture of client service and professionalism based on explicit shared values. These values include providing pro bono legal services, building diversity in our profession, and supporting outreach efforts around the world.Jones Day has a long...
Arnold & Porter Kaye Scholer LLP
Lawsuits & Disputes specialty
Serves Chicago remotely from Washington

Founded in 1946
2,057 people in their team
English
Lawsuits & Disputes Antitrust Litigation Class Action +7 more
At Arnold & Porter, we are client-driven and industry-focused. Our lawyers practice in more than 40 practice areas across the litigation, regulatory and transactional spectrum to help clients with complex needs stay ahead of the global market, anticipate opportunities and address issues that...
Lippes Mathias LLP
Serves Chicago remotely from Albany

Founded in 1965
177 people in their team
English
Lawsuits & Disputes Antitrust Litigation General Litigation +6 more
Lippes Mathias LLP is a full-service law firm with more than 135 attorneys serving clients regionally, nationally, and internationally. With offices in Buffalo, N.Y.; Albany, N.Y.; Burlington, Ontario; Chicago, Ill.; New York City; Jacksonville, Fla; and Washington, D.C., the firm represents a wide...
O'Leary Law Firm, LLC
Lawsuits & Disputes specialty
Chicago, United States

English
Lawsuits & Disputes Antitrust Litigation ADR Mediation & Arbitration +9 more
O'Leary Law Firm, LLC focuses on construction-related law, real estate development, condominium law, and commercial leasing matters in the Chicago metropolitan area. The firm supports property owners, contractors, developers, condominium associations, and other real estate stakeholders with...
Clinton Law Firm
Lawsuits & Disputes specialty
Chicago, United States

Founded in 1992
English
Lawsuits & Disputes Antitrust Litigation ADR Mediation & Arbitration +9 more
The Clinton Law Firm is a Chicago business and commercial litigation practice focused on resolving disputes for Illinois corporations and individuals. The firm emphasizes business disputes and commercial litigation, with representation across Illinois and federal court, along with trial,...

How firms are ordered

Antitrust Litigation lawyers in Chicago, Illinois, United States at a glance

What the 21 firms in this list say about themselves. When a firm has not told us something, we count it as not stated rather than guess.

firms in this list
21
11 of 21 with an office in the city
median founding year
1974
15 of 21 firms give one
people: the most common team size
51+
14 of 21 firms give one
10 offices on the map. Only offices we could place in Chicago, Illinois, United States are shown.

Where their offices are

11 offices in this list

  • Postcode 60602 3 offices
  • Postcode 60606 3 offices
  • Postcode 60646 1 office
  • Postcode 60601 1 office
  • Postcode 60640 1 office
  • No postcode given 1 office
Show the 10 addresses
  • Mayerbock Law Firm · 5791 N Elston Ave, Chicago, IL 60646
  • O'Leary Law Firm, LLC · 20 N Clark St Suite 850, Chicago, IL 60602
  • Clinton Law Firm · 111 W Washington St #1437, Chicago, IL 60602
  • Barack Ferrazzano Kirschbaum & Nagelberg LLP · 200 West Madison Street Suite 3900 Chicago, IL 60606
  • Conway & Mrowiec Attorneys LLLP · 20 South Clark Street Suite 1830 Chicago, Illinois 60603
  • Land Law Firm LLC · 125 S Wacker Dr STE 300, Chicago, IL 60606
  • The Romaker Law Firm · 211 W Wacker Dr #1450, Chicago, IL 60606
  • Allen Law Group · 77 W Wacker Dr Suite 4521, Chicago, IL 60601
  • The Illinois Hammer Injury Law Firm Dworkin & Maciariello · 134 N LaSalle St STE 650, Chicago, IL 60602
  • 844SeeMike Personal Injury Lawyers · 4809 N Ravenswood Ave #419, Chicago, IL 60640

When they were founded

  • 2010 or later 1 firm
  • 1990 to 2009 4 firms
  • 1950 to 1989 5 firms
  • Before 1950 5 firms
  • Not stated 6 firms

The oldest dates from 1869; the median is 1974.

How big their teams are

  • 1 to 5 people 2 firms
  • 6 to 20 people 1 firm
  • 21 to 50 people 1 firm
  • 51 or more people 10 firms
  • Not stated 7 firms

Counted from the firms' own profiles. Firms keep these facts up to date in their dashboard. Update your firm's profile

Legal Articles – Antitrust Litigation, United States

Antitrust Litigation legal guides in United States: read 5 legal guides on Lawzana, with practical information to help you understand your rights and options.

Cross-Border Cartel Defense: How Foreign Companies Fight US Price-Fixing Lawsuits
Antitrust Litigation
A foreign manufacturer that sells only abroad can still face a US price-fixing lawsuit if its goods, or products containing them, reach American buyers. The Foreign Trade Antitrust Improvements Act (FTAIA) narrows the Sherman Act's substantive reach. Most federal circuits treat it as an element of the plaintiff's claim, not... Read more →
United States HSR Act Merger Filings - 2026 Antitrust FAQ
Antitrust Litigation
US HSR Act Merger Filings FAQ: 2026 Antitrust Guide for Foreign Acquirers The Hart-Scott-Rodino (HSR) Act requires foreign acquirers to notify the US government before completing mergers that meet specific financial thresholds. Government filing fees for 2026 are tiered based on transaction value, ranging from approximately $30,000 to $2.25 million.... Read more →
California Tech Licensing Antitrust Guide - United States
Antitrust Litigation
Antitrust Compliance for Tech Licensing in California: A Guide for Foreign Tech Companies Entering the California market offers massive growth opportunities for international technology companies, but it also introduces complex regulatory challenges. Structuring intellectual property (IP) licensing agreements in California requires a deep understanding of both federal US antitrust laws... Read more →

About Antitrust Litigation Law in Chicago, United States

Antitrust litigation law deals with legal disputes arising from alleged violations of competition laws, which are designed to promote fair competition and prevent monopolistic practices in the marketplace. In Chicago, as in the rest of the United States, antitrust laws aim to protect consumers and other businesses from unfair business practices such as price fixing, market allocation, bid rigging, and abuse of dominant market positions. Both federal and Illinois state laws apply to antitrust matters in Chicago. Typical antitrust cases may involve lawsuits brought by individuals, businesses, or government agencies against companies accused of violating these laws.

Why You May Need a Lawyer

There are several situations in which you might require the services of an antitrust litigation lawyer in Chicago. Common scenarios include:

  • You are a business facing an investigation or lawsuit alleging anticompetitive behavior.
  • Your company believes it has been harmed by unfair competition, such as price fixing or market manipulation, and wants to pursue legal action.
  • You need guidance on complying with antitrust laws in mergers or acquisitions to avoid regulatory issues.
  • You have received a subpoena or notice from a government agency regarding an antitrust inquiry.
  • You are a consumer or smaller competitor affected by practices that seem to restrain trade or reduce competition.

An experienced lawyer can help you understand your rights and responsibilities, represent you in court, and negotiate with regulatory authorities or other parties involved in the dispute.

Local Laws Overview

Antitrust litigation in Chicago operates under a combination of federal and state laws. The primary federal statutes include the Sherman Antitrust Act, the Clayton Act, and the Federal Trade Commission Act. These laws address unlawful restraints of trade, monopolization, and unfair competition. Illinois state law also includes provisions such as the Illinois Antitrust Act, which closely mirrors federal statutes but can provide additional remedies and enforcement avenues within the state.

Local enforcement of antitrust laws in Chicago may involve agencies such as the United States Department of Justice's Antitrust Division, the Federal Trade Commission, and the Illinois Attorney General's Office. Courts located in Chicago, including the United States District Court for the Northern District of Illinois and the Illinois Circuit Court of Cook County, frequently handle complex antitrust litigation matters affecting businesses both local and national.

Frequently Asked Questions

What is antitrust litigation?

Antitrust litigation refers to legal proceedings that resolve disputes involving alleged violations of laws designed to promote competition and prevent monopolies or unfair business practices. These can be civil or criminal cases brought by private parties, competitors, or government agencies.

Can a small business file an antitrust lawsuit in Chicago?

Yes, small businesses harmed by anticompetitive practices can bring lawsuits against larger competitors or others who violate antitrust laws, seeking damages or injunctions to stop illegal activities.

Who enforces antitrust laws in Chicago?

At the federal level, the Department of Justice's Antitrust Division and the Federal Trade Commission enforce antitrust laws. Illinois state agencies, including the Attorney General's Office, also enforce state antitrust statutes.

What types of conduct can violate antitrust laws?

Violations may include price fixing, bid rigging, market division, exclusive dealing agreements, monopolization, and mergers that substantially lessen competition.

Are antitrust laws enforced only against large corporations?

No, antitrust laws apply to businesses of any size engaging in unlawful anticompetitive conduct.

How long does an antitrust lawsuit typically take?

Antitrust lawsuits can be complex and lengthy, sometimes lasting several years from initiation to resolution, depending on the specifics of the case and court schedules.

What remedies are available in antitrust litigation?

Remedies may include monetary damages, injunctive relief (court orders to cease certain conduct), and, in some criminal cases, fines or imprisonment for individuals.

Do I need a lawyer to respond to an antitrust investigation?

Yes, it is highly advisable to consult with an experienced antitrust lawyer if you or your business is being investigated, as these matters can involve significant legal and financial consequences.

Is it possible to settle an antitrust case out of court?

Yes, many antitrust disputes are resolved through settlements before reaching trial, often involving agreements to change certain business practices or pay damages.

What is the role of the Illinois Antitrust Act?

The Illinois Antitrust Act reinforces federal antitrust laws within the state and allows for enforcement actions by the Illinois Attorney General or private parties harmed by violations, providing additional protections against anticompetitive conduct in Illinois.

Additional Resources

Those seeking more information or assistance with antitrust issues in Chicago can consult the following resources:

  • United States Department of Justice Antitrust Division
  • Federal Trade Commission (FTC)
  • Illinois Attorney General - Antitrust Bureau
  • Chicago Bar Association
  • American Bar Association Section of Antitrust Law
  • Northwestern Pritzker School of Law Antitrust and Competition Law Program

These organizations provide valuable information, publications, and sometimes referral services for those facing antitrust legal issues.

Next Steps

If you believe you have an antitrust concern in Chicago, begin by documenting all relevant facts, communications, and business practices. Avoid taking actions that could jeopardize your legal position. Consulting with a skilled antitrust litigation attorney is crucial to protecting your rights and determining the best course of action. Attorneys can help assess the merits of your case, advise on compliance, represent you in negotiations or court, and ensure all procedural requirements are met.

To get started, consider reaching out to a lawyer who specializes in antitrust and competition law, or contact one of the organizations listed in the resources section for referrals or further information. Acting promptly will help safeguard your interests and enhance your chances of a favorable outcome.

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Each profile includes a description of the firm's areas of practice, client reviews, team members and partners, year of establishment, spoken languages, office locations, contact information, social media presence, and any published articles or resources. Most firms on our platform speak English and are experienced in both local and international legal matters.

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Disclaimer:

The information provided on this page is for general informational purposes only and does not constitute legal advice. While we strive to ensure the accuracy and relevance of the content, legal information may change over time, and interpretations of the law can vary. You should always consult with a qualified legal professional for advice specific to your situation.

We disclaim all liability for actions taken or not taken based on the content of this page. If you believe any information is incorrect or outdated, please contact us, and we will review and update it where appropriate.

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