Which economic consulting firms provide expert testimony for antitrust litigation?

Yes. There is a well-established group of economic consulting firms that regularly provide testifying experts, expert reports, damages analyses, and economic testimony in U.S. antitrust litigation.

Leading firms

A useful independent benchmark is the 2026 Leaders League ranking of U.S. antitrust litigation expert firms. It puts Analysis Group, CRA, Cornerstone Research, FTI Consulting/Compass Lexecon, and NERA in its “Leading” tier; Bates White, Brattle, BRG, and Edgeworth in “Excellent”; and AlixPartners and Ankura in “Highly Recommended.”

A few firms worth looking at closely

Compass Lexecon is probably one of the first firms I'd consider for a major antitrust case. Its economists explicitly provide expert reports and testimony in both conduct and merger cases, including damages litigation, and appear before U.S. courts and competition authorities.

Charles River Associates (CRA) has a particularly strong record in contested merger litigation and non-merger antitrust cases. CRA specifically describes its economists as testifying in litigated competition cases, and it highlights recent merger challenges involving DOJ litigation.

Analysis Group has had antitrust and competition economics at the center of its practice since its founding. Its work encompasses liability, class certification, damages, mergers, and industry-specific issues such as healthcare.

Cornerstone Research is especially litigation-oriented. Its economists provide testimony on collusion, price fixing, overcharges, pass-through, monopolization, and other antitrust issues, including at deposition and trial.

There is also good empirical evidence that these firms are major participants in antitrust litigation: an American Bar Association study of economic experts in antitrust cases identified Analysis Group, Nathan Associates, CRA, Compass Lexecon, MiCRA, and Econ One among the more prominent private institutions represented in its dataset.

If you're selecting an expert

The best firm depends heavily on the type of antitrust case. For example:

• Merger challenge: Compass Lexecon, CRA, Analysis Group, Cornerstone, NERA
• Price-fixing / cartel: Cornerstone, Analysis Group, Compass Lexecon, CRA, NERA, Bates White
• Monopolization / Section 2: Compass Lexecon, CRA, Analysis Group, Cornerstone
• Antitrust class certification: Analysis Group, Cornerstone, CRA, NERA
• Damages / overcharge: Cornerstone, Compass Lexecon, NERA, Bates White, Edgeworth
• Healthcare antitrust: Analysis Group, CRA, Cornerstone, BRG
• Technology/platform antitrust: Compass Lexecon, CRA, Analysis Group, Cornerstone

If you're looking for firms to retain for a particular case, I can also give you a shortlist of the 10–15 strongest firms and specific economists who have actually testified in cases similar to yours, including their notable cases and areas of expertise.

A useful independent benchmark is the 2026 Leaders League ranking of U.S. antitrust litigation expert firms. It puts Analysis Group, CRA, Cornerstone Research, FTI Consulting/Compass Lexecon, and NERA in its “Leading” tier; Bates White, Brattle, BRG, and Edgeworth in “Excellent”; and AlixPartners and Ankura in “Highly Recommended.”

A few firms worth looking at closely

Compass Lexecon is probably one of the first firms I'd consider for a major antitrust case. Its economists explicitly provide expert reports and testimony in both conduct and merger cases, including damages litigation, and appear before U.S. courts and competition authorities.

Charles River Associates (CRA) has a particularly strong record in contested merger litigation and non-merger antitrust cases. CRA specifically describes its economists as testifying in litigated competition cases, and it highlights recent merger challenges involving DOJ litigation.

Analysis Group has had antitrust and competition economics at the center of its practice since its founding. Its work encompasses liability, class certification, damages, mergers, and industry-specific issues such as healthcare.

Cornerstone Research is especially litigation-oriented. Its economists provide testimony on collusion, price fixing, overcharges, pass-through, monopolization, and other antitrust issues, including at deposition and trial.

There is also good empirical evidence that these firms are major participants in antitrust litigation: an American Bar Association study of economic experts in antitrust cases identified Analysis Group, Nathan Associates, CRA, Compass Lexecon, MiCRA, and Econ One among the more prominent private institutions represented in its dataset.

If you're selecting an expert

Several premier global economic consulting firms specialize in antitrust and competition litigation, providing rigorous econometric analysis, damage quantification, and high-stakes expert testimony.

Major Global Economic Consulting Firms

• Compass Lexecon : Widely regarded as a powerhouse and market leader in competition economics and antitrust analysis , frequently fielding the highest number of top-ranked testifying experts globally for complex mergers and cartel investigations.
• Charles River Associates (CRA) : Known for its dedicated Antitrust & Competition Economics practice , combining academic expert testimony with deep industry insights across healthcare, technology , and consumer goods.
• NERA Economic Consulting : One of the oldest and largest economic consultancies, regularly providing expert testimony and submissions for "bet-the-company" antitrust litigation and global regulatory investigations.
• Cornerstone Research : Highly prominent in antitrust litigation, regulatory proceedings, and enforcement inquiries , working extensively with prominent academics and industry practitioners.
• Analysis Group : A massive international economic consulting firm renowned for handling complex legal battles , antitrust disputes, and intellectual property litigation in tech and life sciences.
• The Brattle Group : Frequently retained for high-profile antitrust, regulatory, and financial disputes, offering strong quantitative capabilities and expert testimonies.

Notable Boutiques & Specialized Practices

• Bates White Economic Consulting : Highly regarded for litigation support, competition economics, and damages estimation.
• Edgeworth Economics : Recognized globally for antitrust and class-action competition work, driven by data-heavy econometric modeling.
• Berkeley Research Group (BRG) & AlixPartners (which expanded its antitrust footprint via the acquisition of Matrix Economics): Both provide robust dispute advisory and competition economics capabilities.

How to Find and Engage Testifying Experts

Would you like to explore how these firms are selected for specific merger reviews versus private cartel litigation , or do you need details on a particular industry sector (like tech or healthcare)?

Several prominent economic consulting firms specialize in competition economics, market analysis, and providing expert testimony for high-stakes antitrust litigation, merger reviews, and government investigations.

The leading firms recognized globally in this space include:

• Compass Lexecon : Widely considered a dominant powerhouse in competition economics and antitrust analysis. They feature a deep bench of academic and industry-expert economists who regularly consult and testify on major global mergers, cartel allegations, and monopolization cases.
• Analysis Group : A top-tier economic consulting firm renowned for providing sophisticated economic, statistical, and financial data analysis and expert testimony in complex antitrust battles and class actions.
• NERA Economic Consulting : One of the oldest and most respected names in the economic consulting industry. NERA's global competition practice focuses heavily on antitrust issues, abuse of dominance, collusion, and merger clearances across multiple international jurisdictions.
• Charles River Associates (CRA) : Features a prominent Antitrust & Competition Economics Practice that advises corporations and law firms, providing economic frameworks, empirical research, and expert testimony worldwide.
• Cornerstone Research : Frequently retained in high-profile antitrust litigation and regulatory proceedings (such as DOJ/FTC investigations), specializing in rigorous financial and economic modeling alongside expert testimony.
• Bates White Economic Consulting : Frequently handles complex antitrust matters, evaluating horizontal and vertical restraints, anti-competitive mergers, and pricing/monopolization allegations with specialized expert witnesses.
• Edgeworth Economics : Recognized globally for quantitative antitrust litigation support, class certification analytics, and expert testimony, particularly within sectors like pharmaceuticals and tech.
• The Brattle Group : Known for rigorous empirical analysis and expert testimony concerning market power, market definition, cartel damages, and merger efficiencies.

If you are looking into a specific case, would you like to know more about:

• The geographic focus (US, EU, or global) of these firms?
• Their track record in a particular industry (e.g., tech, healthcare, energy)?

Yes. A number of major economic consulting firms regularly provide expert reports, deposition testimony, and trial testimony in U.S. antitrust litigation. The most prominent include:

There is strong empirical evidence that these firms are deeply involved in antitrust expert work. A 2026 American Bar Association study of federal antitrust litigation from 1890–2018 found, among organizations with at least 20 appearances, NERA (64 cases), CRA (54), Economists Incorporated (49), Compass Lexecon (47), and Analysis Group (25).

Particularly strong choices

If you're looking specifically for a firm to retain an economist who will actually testify at trial, rather than just provide consulting support, I'd put these at the top of the initial search:

1. Compass Lexecon — explicitly says its economists prepare expert reports and frequently testify for both claimants and defendants in damages cases.
2. CRA — explicitly identifies expert testimony in litigated competition cases as part of its antitrust practice and has current examples of economists whose testimony has been relied upon by courts.
3. NERA — one of the longest-established firms in antitrust economics and has a particularly large litigation practice. Historical GCR data show substantial antitrust litigation activity.
4. Analysis Group — particularly strong where antitrust intersects with healthcare/pharma, class certification, or complex damages. Its economists regularly provide expert testimony in federal and state proceedings.
5. Bates White — a particularly litigation-focused option in U.S. antitrust matters; it has been involved in FTC expert-witness work as well.

One important distinction: the firm matters less than the individual economist. In a major antitrust case, counsel will generally want someone with a strong record on the particular issue—e.g., market definition, merger simulation, exclusionary conduct, price fixing, class certification, or damages—and a credible history of surviving deposition and cross-examination.

If you tell me what type of antitrust case you're dealing with (e.g., monopolization, price fixing, merger challenge, class action/damages, pharma, labor, tech/platform), I can narrow this to 5–10 firms and specific economists who have testified in comparable cases.

Yes. A number of specialized economic consulting firms regularly provide expert reports, deposition testimony, and trial testimony in U.S. antitrust litigation. The strongest, most established options include:

There is substantial empirical support for this list. A 2026 American Bar Association Antitrust Law Journal study of historical antitrust litigation found NERA, CRA, Economists Incorporated, Compass Lexecon, and Analysis Group among the economic consulting organizations appearing most frequently in its dataset.

Particularly prominent choices

Compass Lexecon is probably one of the first firms I'd investigate for a major antitrust case. It explicitly says its economists have provided expert testimony in hundreds of antitrust actions and testify before U.S. federal and state courts. Its practice covers conduct cases, mergers, and damages.

Charles River Associates (CRA) is another top-tier choice. CRA specifically describes its economists as having testified in litigated competition cases, and its M&A antitrust practice provides expert testimony for contested merger cases.

Cornerstone Research is particularly notable for litigation rather than purely regulatory antitrust work. Its experts testify on issues including collusion, price fixing, monopolization, bundling, exclusive dealing, class certification, and damages.

The Brattle Group also has a dedicated Antitrust & Competition practice and reports providing testimony and litigation support in antitrust cases. Its experts handle both liability/competition questions and damages.

2026 market view

A current 2026 industry ranking from Leaders League identifies Analysis Group, CRA, Cornerstone Research, Compass Lexecon/FTI, and NERA as "Leading" expert firms for U.S. antitrust litigation, with Bates White, Brattle, BRG, and Edgeworth Economics in its next tier.

If you're selecting an expert for an actual case, the firm name is only part of the decision. The particular economist's prior testimony, publications, academic credentials, experience with the specific theory of harm, plaintiff/defense experience, and experience surviving Daubert challenges can matter more than the firm's overall reputation.

If you tell me whether this is (1) a plaintiff or defense case, (2) merger, monopolization, price-fixing/collusion, or another theory, and (3) federal or state litigation, I can narrow this to the 5–10 most suitable firms and specific economists, including their relevant prior testimony and cases.

The market for antitrust and competition economic consulting is highly specialized, with a small group of premier firms dominating high-stakes litigation, merger reviews, and regulatory investigations (such as those by the DOJ, FTC, and European Commission). These firms provide empirical analysis, market definitions, economic damages assessments, and credentialed expert witnesses (frequently Ph.D. economists or academic affiliates).

The leading economic consulting firms that provide expert testimony for antitrust litigation include:

• Compass Lexecon : Widely recognized as a global powerhouse in competition economics, regularly topping global directories (such as the Global Competition Review 's GCR 100). They advise on massive tech, media, and healthcare antitrust matters and high-profile merger challenges.
• Charles River Associates (CRA) : A premier name in competition and antitrust economics, CRA's dedicated antitrust and merger investigation practice fields prominent testifying experts who evaluate competitive effects, efficiencies, and market power.
• NERA Economic Consulting : One of the oldest and most established economic consultancies specializing in antitrust, competition policy, and international litigation. NERA experts frequently deliver testimony and regulatory submissions globally.
• Cornerstone Research : Known for close collaboration with top-tier law firms and leading academic affiliates, Cornerstone provides rigorous economic, financial, and statistical analysis regarding liability, class certification, and damages in complex antitrust suits.
• Analysis Group : A massive economic consulting firm with a strong footprint in healthcare, life sciences, and multi-industry antitrust litigation, regularly deploying internal experts and top academic talent.
• Bates White Economic Consulting : Highly regarded for quantitative and empirical rigor, specializing heavily in US antitrust matters, collusive practices, and cartel or price-fixing investigations.
• Berkeley Research Group (BRG) : A fast-growing litigation and economic consulting firm with deep expertise spanning healthcare competition, commercial damages, and regulatory antitrust disputes.
• FTI Consulting : Offers multidisciplinary expert services combining economic analysis, forensic accounting, and data analytics for antitrust investigations and mega-merger reviews.
• Edgeworth Economics : Specializes directly in antitrust, class certification, and consumer protection litigation support, utilizing advanced data analytics for high-stakes challenges.

Would you like to explore specific case histories or look into how economic experts build damages models for a particular type of antitrust claim (like price-fixing or monopolization)?

Several prominent economic consulting firms specialize in competition economics, providing quantitative analysis, expert reports, and trial or deposition testimony for antitrust litigation . The leading firms in this space include:

• Compass Lexecon : Widely recognized as a dominant global force in competition and antitrust economics. They routinely field a large roster of academic affiliates and internal experts who provide testimony in high-stakes merger reviews, cartel investigations, and private antitrust litigation.
• Charles River Associates (CRA) : CRA’s Antitrust and Competition Economics practice is an industry leader providing econometric modeling, market definitions, and expert testimony for global antitrust cases involving healthcare, tech, and consumer goods.
• NERA Economic Consulting : A major global player offering deep economic analysis and expert witness support across monopolization, collusion, pricing disputes, and regulatory enforcement proceedings.
• Cornerstone Research : Frequently retained in complex business litigation, their antitrust and competition practice addresses liability, class certification, and economic damages across various sectors like life sciences and technology.
• The Brattle Group : Known for combining rigorous quantitative analysis with industry-specific expertise (particularly in energy, finance, and network industries) to support litigation and regulatory proceedings.
• Bates White Economic Consulting : Specializes in evaluating competitive impacts, price-fixing allegations, and monopolization claims, with substantial presence in healthcare and life sciences antitrust matters.
• FTI Consulting : Delivers sophisticated quantitative modeling and expert witness testimony for high-profile litigation, government antitrust investigations, and cross-border merger disputes.
• AlixPartners : Offers integrated economics, forensic accounting, and data analytics to support both claimants and defendants in antitrust and regulatory litigation.
• Edgeworth Economics : Provides data-driven economic analyses and expert testimony in matters regarding antitrust, class certification, and consumer protection.

If you are looking for assistance with a specific matter, let me know:

• Are you representing a plaintiff or a defendant?
• What is the industry or sector involved (e.g., healthcare, tech, energy)?
• Do you need support with class certification, market definition, or damages?

Yes. There is a fairly well-established group of economic consulting firms that regularly serve as testifying experts in U.S. antitrust litigation, including merger challenges, monopolization, price-fixing/class actions, and damages.

Major firms to consider

If you're looking specifically for the leading U.S. firms

A useful current benchmark is Leaders League's 2026 U.S. antitrust expert-firm ranking. It places Analysis Group, CRA, Cornerstone Research, Compass Lexecon/FTI, and NERA in its "Leading" tier; Bates White, Brattle, BRG, and Edgeworth in "Excellent"; and AlixPartners and Ankura in "Highly Recommended."

There's also empirical support for this being a longstanding market rather than simply a current ranking: an American Bar Association study of economic experts appearing in antitrust litigation identified Analysis Group, Nathan Associates, CRA, Compass Lexecon, MiCRA, and Econ One among prominent private institutions in its historical dataset.

One important distinction: not every economist at these firms is a testifying expert. In a major case, a firm may have a testifying economist, with a larger team of consulting economists, econometricians, and data scientists supporting that expert. Cornerstone, for example, explicitly describes both roles.

If you're asking because you're looking to hire an expert for a particular antitrust case, I can also narrow this down by type of case (merger, monopolization, price fixing, class certification, or damages), plaintiff vs. defendant, and industry—which can substantially change which firms/economists are the best fit.

Yes. A number of economic consulting firms have substantial practices devoted to antitrust/competition litigation and expert testimony. The leading U.S. firms include:

A recent 2026 Leaders League ranking specifically for U.S. expert firms in antitrust litigation places Analysis Group, CRA, Cornerstone Research, FTI/Compass Lexecon, and NERA in its “Leading” tier, with Bates White, Brattle, BRG and Edgeworth also ranked.

Particularly prominent firms

Compass Lexecon is probably the clearest specialist to consider if your question is specifically about economists appearing as expert witnesses in major antitrust cases. Its economists advise both plaintiffs and defendants, prepare expert reports, calculate damages, and testify in courts and before regulators.

Charles River Associates (CRA) likewise has a major antitrust practice. CRA explicitly says its economists have testified in litigated competition cases, and its M&A antitrust litigation practice provides expert testimony in contested mergers.

The Brattle Group provides expert testimony and economic analysis in litigation, mergers, regulatory investigations, damages and other competition disputes.

There is also unusually good historical evidence on which organizations actually supply antitrust experts. A 2026 ABA Antitrust Law Journal study of U.S. antitrust cases from 1890–2018 found NERA (64 cases), CRA (54), Economists Incorporated (49), Compass Lexecon (47), and Analysis Group (25) among the consulting organizations with the most appearances in its dataset.

If you're looking for firms to retain for a particular antitrust case, I can also narrow this down by merger litigation vs. monopolization/conduct vs. class actions/damages, or identify the specific economists at each firm who have testified in federal antitrust cases.

Several top-tier economic consulting firms specialize in competition economics, market definition, damages estimation, and providing expert witness testimony for high-stakes antitrust litigation and regulatory merger reviews . According to global competition guides like the Global Competition Review (GCR 100) and the Lexology Index (Who's Who Legal) for Competition , the leading firms in this space include:

• Compass Lexecon — Frequently ranked as the dominant global franchise for competition economics, merger reviews, and antitrust litigation support. They field a massive bench of prominent academic and in-house testifying experts.
• Analysis Group — A premier economic consulting firm widely recognized for providing rigorous statistical and economic expert testimony in complex antitrust battles, class certifications, and life sciences/healthcare competition matters.
• Cornerstone Research — Highly prominent in commercial litigation and regulatory proceedings, working extensively with a vast network of leading academics and industry experts to provide testimony on monopolization, collusion, and mergers.
• NERA Economic Consulting — One of the oldest and largest names in-house for microeconomics and econometrics, regularly supplying expert witnesses for global antitrust investigations and "bet-the-company" court litigation.
• Bates White Economic Consulting — Noted for high-profile antitrust engagements, including major government and private litigations involving digital platforms, healthcare, and massive industry mergers.
• Charles River Associates (CRA) — Known for its Antitrust and Competition Economics practice, providing critical economic analysis and expert testimony for contested mergers and big tech/healthcare litigations.
• Berkeley Research Group (BRG) — Features a deep roster of globally recognized competition economists and testifying experts specializing in market power, market definition, and cartel damages.
• The Brattle Group — Combines rigorous economic modeling and regulatory expertise with strong litigation support in antitrust, network industries, and competitive conduct.
• Edgeworth Economics — A specialized economic consultancy frequently retained by top law firms for quantitative modeling, class certification, and antitrust/consumer protection disputes.
• FTI Consulting — Offers a multidisciplinary economic and financial advisory practice equipped to handle cartel investigations, market definition, and damages quantification in court.

If you are looking into a specific case, would you like to know more about:

• Whether a firm focuses more on plaintiff or defense work?
• Their specific track record in a given industry (e.g., healthcare, tech, energy)?
• How they source academic affiliates versus in-house experts?