Advertising Expert Witnesses

The SEAK Expert Witness Directory contains a comprehensive list of advertising expert witnesses who testify, consult and provide litigation support on advertising and related issues. Advertising expert witnesses and consultants on this page may form expert opinions, draft expert witness reports, and provide expert witness testimony at deposition and trial. The issues and subjects these advertising expert witnesses testify regarding may include: Advertising, Survey Research, Marketing, Intellectual Property, Lanham Act, Class Action, Deceptive Advertising, Digital Advertising, Dilution, Genericness, Likelihood Of Confusion, Secondary Meaning, Social Media, Brand Reputation, and Defamation.

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Larry Steven Londre, MBA

Marketing, Business Practices & Advertising Expert

Londre Marketing Consultants, LLC / USC / Loyola Law School/ Pepperdine/ California State University, Northridge

Los Angeles, California
Marketing, Advertising - Marketing, Sales, Advertising, Ads, Promotion, Misleading Advertising, Deceptive Ads, Unfair Advertising, Business Practices, Intellectual Property, Patents, Deceptive Promotion, Trade dress, Unfair Competition, Breach of contract, Partners, Copyrights, Forensic Marketing, Social media, Distribution
Senior Marketing & Advertising Professional. Marketing Analyst. Marketing & Business Problem Solver in Objectives, Strategies and Tactics. Battle-tested, deposition-tested. 22+ years as Marketing and Advertising expert. Cases: Marketing; Advertising; Ads; breach of contract; business strategies, practices; business and professions code compliance and violations; unfair competition, contracts, sponsorships; deceptive, false advertising; media; intellectual property; patents; usage of models; advertising agencies; trade secrets; partner business practices; unfair advertising; deceptive advertising; violations of Lanham Act; unjust enrichment; trademarks at issue; comparative advertising/promotion; licensing; packaging; the value of advertising and media campaigns. I have been deposed, testified in court and arbitration: 57 times. Cases have included contracts between partners, directors, advertising agencies, clients, advertisers, suppliers, distributors, production firms an...
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Robert J. Fisher

Defamation and Reputation Harm Expert Witness

Fisher & Associates, Inc.

Westlake Village, California
Defamation, Communications - Journalism, Libel, Public Perception/Opinion, False Light/Privacy, Advertising, Slander, Negative Media Exposure, Defamation of Character, Marketing, Negative Online Reviews, Reputation Damage Costs, Public Opinion/Perception, Defamation, Online/Internet Defamation, Reputation Damage Repair/Costs, Journalism
PROFESSIONAL BACKGROUND Professional Employment * Journalist: New York Times Reporter * Public Relations: Eight years working for 3 of top 10 PR firms in U.S. * PR/Communications Firm: Owned PR firm in Los Angeles 42 years (also provided Advertising and Marketing services) Professional Areas of Specialization * First PR firm in nation representing legal profession (1978). Represented 130 law firms. Provided PR, marketing and litigation services. * Handled communications ("Court of Public Opinion") and provided support in 250-300 litigation cases/trials nationwide. * Acknowledged nationally for expertise in crisis communications and reputation damage repair (created and implemented 50-60 reputation damage repair programs.) * National reputation with news media for reputation management and repair, utilized as expert media information source, analyst and commentator by print and electronic media (both news and feature), wire services. (Example: during and between the...
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Jason McDonald, PhD

SEO, Google Ads, & Social Media Expert Witness

San Francisco, California
Search Engine Optimization, Advertising - SEO, search engine optimization, social media, google ads, adwords, online advertising, online ads, digital advertising, PPC, pay-per-click, social media marketing, facebook, youtube, instagram, tiktok, twitter, linkedin
Jason McDonald is an internet pioneer, having started his first company (eg3.com) in 1994. Nowadays, he works as an 'SEO expert witness,' a 'Google Ads expert witness,' and a 'social media expert witness,' helping attorneys identify the facts and establish the truth in complex litigation concerning organic efforts and advertising on key social media platforms such as Facebook Ads, Instagram marketing and ads, YouTube ads, Instagram ads, and other ad platforms like TikTok, LinkedIn, and Twitter. Working as an expert witness in digital advertising and marketing, Jason has helped judges, juries, and attorneys understand the factual complexities of how marketing works online. Research and testimony has commonly dealt with trademark disputes, branding, and the complexities of organic and ads for SEO, Social Media, and Google Ads. If you are an attorney looking for an expert witness with a passion for the facts, please reach out to Jason. In addition to a thriving consulting business for...
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Ashek Hossain, MBA

Media Measurement & Ad Tech Consultant

Los Angeles, California
Advertising - Advertising measurement, Streaming / CTV analytics, Campaign performance, Marketing effectiveness, Media analytics, Audience measurement, Programmatic media, Ad verification, Cross-platform measurement, Data transparency, OTT / CTV, Audience insights, Ad Tech, Digital advertising, Media accountability, Digital media strategy
Ashek Hossain is a senior media measurement and advertising technology professional with over a decade of experience across CTV, streaming, and digital analytics. He currently serves as a Senior Director of Digital Measurement, working with leading publishers, advertisers, and platforms to improve the accuracy, transparency, and effectiveness of modern media measurement. His expertise includes audience measurement, cross-platform analytics, campaign performance, and data integrity, with a focus on helping organizations understand how advertising is delivered, measured, and optimized across digital and streaming environments. Ashek has held leadership roles across media, ad tech, and data analytics organizations and has partnered directly with major advertising, technology, and entertainment companies to support measurement frameworks, reporting standards, and performance analysis. His background combines hands-on technical knowledge of measurement systems with a strong understandi...
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Joann E. Killeen, B.A., M.S., APR, Fellow PRSA

Public Relations, Crisis Management, Defamation

KFG PR Joann Killeen Expert Witness

LOS ANGELES, California
Communications, Marketing - Public Relations, Crisis Management, Reputation Management/Harm, Social Media, Defamation, Slander, Libel, Franchises Franchisors Franchisees, SEO/Websites, Mainstream Media, Brand Reputation, Online internet harm, Marketing, PR Professional Practices/Malpractice, Advertising, Strategic Branding
Joann Killeen, APR, Fellow PRSA, has over 35 years of experience and is one of the few court-qualified, public relations expert witnesses. She is Accredited in Public Relations (APR) and a Fellow PRSA, awarded by the Public Relations Society of America, one of the leading public relations professional organizations. She is one of 400 members in the PRSA College of Fellows. With a proven track record of success in corporate, agency, technology, government, franchisee, education and health care, Killeen is an accomplished public relations professional whose client campaigns have won awards by PRSA. Her extensive experience enables her to quickly assess client's communications needs and recommend tailored, cost-effective strategic solutions. Killeen served as the President and CEO of the Public Relations Society of America in 2002, where she led the organization to record financial success, a first in its 76-year history. She has has engaged by law firms to provide pre-trial consu...
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Lucas Carden, PhD

Testifying Consumer Survey Expert

Los Angeles, California
Marketing, Advertising - Survey research, Intellectual property, Lanham Act, Trademark infringement, Trade dress infringement, Likelihood of confusion, False advertising, Deceptive advertising, Secondary meaning, Genericness, Dilution
Lucas Carden, Ph.D., is a research scientist and managing partner at FocusMark LLC and serves as a testifying survey expert on matters related to trademark and trade dress infringement and false and deceptive advertising. He has over a decade of experience designing, executing, and evaluating consumer surveys for complex litigation matters, corporate market research, and academic research. Dr. Carden has been retained as a survey expert in multiple litigation matters before United States District Courts. He has experience supporting other litigation survey experts, as well as conducting survey research and preparing rebuttal critiques in disputes regarding likelihood of confusion, secondary meaning, genericness, false and deceptive advertising, materiality, and patent valuation. His litigation experience includes matters before federal and state courts, the Trademark Trial and Appeal Board (TTAB), and the National Advertising Division (NAD). Beyond litigation, Dr. Carden has con...
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Sanjay Ranka

Computer Science: IPR, Infringement, Invalidity

Distinguished Professor, Computer Science, University of Florida, Gainesville

GAINESVILLE, Florida
Computers, Information Technology - Databases, Algorithms, Parallel Computing, Distributed Computing, Distributed Systems, GPU Computing, High performance computing, Data Analytics, Big Data, Computer Science, Artificial Intelligence, Computer Vision, Machine Learning, Expert Systems, Cloud Computing, Marketing, CRM, Advertising, Optimization, Ad Servers
I am a Distinguished Professor of Computer Science at the University of Florida, IEEE Fellow, and AAAS Fellow, and I serve as an expert witness in patent litigation and other complex technology matters involving distributed systems, cloud infrastructure, data platforms, machine learning, GPU-accelerated and high-performance computing systems, and large-scale software architectures. My work focuses on helping counsel and courts understand how modern computing systems operate in practice—particularly where technical claims, system behavior, and real-world implementation diverge. This includes analyzing how systems behave under scale, latency, partial failure, and distributed coordination constraints. I provide clear, structured, and defensible technical analysis across all phases of litigation, including expert reports, depositions, PTAB/IPR proceedings, and trial testimony. I previously served as CTO and co-founder of Paramark, an ad-serving optimization platform (PILOT) that opera...
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Gregory Kohs

Research Biz, LLC

Jensen Beach, Florida
Marketing, Statistics - Market research, Survey research, Consumer survey, Product testing, User research, Qualitative, Quantitative, Population sampling, Web survey, Telephone survey, Focus groups, In-depth interviewing, Social science, Pricing, Survey software, Questionnaire, Polling, Advertising, Offers, Wikipedia
I am a market research practitioner and executive with 33 years of experience in the field. I own and manage the market research consulting firm, Research Biz, LLC. I hold a Master of Arts degree and was ABD toward the Ph.D. from Temple University, with my dissertation focused on how licensed motor designs influence military aircraft production. I also received a Bachelor of Arts degree, magna cum laude, from Emory University. I am an experienced expert witness in civil litigation, including multiple cases centering on technology patent infringement claims against Top 5 Internet companies. From 2012 to 2019, I was Director for Comcast Business where I headed the market research department, overseeing the design and execution of primary market research projects. I was selected for the role after having worked for five years from 2007 to 2012 with Comcast Xfinity’s product planning and pricing group, managing survey research, focus groups, and the overall budget for that department...
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Chuck Malkus

Defamation, Marketing, Communications, Advertising

Malkus Communications Group, Chuck Malkus Expert Witness

Jacksonville, Florida
Marketing, Defamation - Communications, Reputation Harm, Public Relations, Brand Reputation, PR/Marcom, Negative Media Exposure, Defamation of Character, PR Professional Practices, Reputational Damage, Media, SEO/Website, Strategic Branding, Public Opinion, Online/Internet Defamation, Online Reputation Management, Advertising, TV/Streaming, Film
A renowned communications professional, Chuck Malkus has 37+ years with leadership developing marketing and public relations strategies for Fortune 500 corporations. His specialization includes crisis management, reputation damage and defamation harm. His agency work includes serving as a chief strategy officer and he provides interviews for TV networks including CNBC, CNN, NBC and Fox Business. He currently lectures as a senior executive in residence at the University of North Florida and previously was a faculty member for Florida Atlantic University. He has worked broadly in advertising, branding, business development and reputation management. A prominent consumer behavior authority, he’s recognized for launching new brands and start-up businesses. Mr. Malkus has been described by The Miami Herald as a “public relations guru” and is a nationally recognized ethics authority. He has been a keynote speaker for organizations including the Kansas Government Finance Officers Associat...
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Thomas J Maronick, DBA, JD

Maronick Associates

Baltimore, Maryland
Marketing, Advertising - Survey research, consumer behavior, consumer confusion, deceptive advertising, trademark, trade-dress and genericness, Lanham Act, FTC, class-action litigation
Federal and State qualified advertising, marketing and survey research expert representing plaintiff and defendant clients in advertising and trademark litigation matters. Designed over 700 surveys related to advertising, trademark trade dress and genericness areas for plaintiff and defendant clients. Former Director of Impact Evaluation in FTC's Bureau of Consumer Protection. Expert in design and implementation of on-line and internet panel surveys. Author of journal articles on "Guidelines for On-Line Surveys in Litigation," "Comparison of Mall and On-Line Surveys in Litigation."
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Patricia Yanes

Consumer Survey Expert – Class Actions

Applied Marketing Science, Inc.

Burlington, Massachusetts
Marketing, Advertising - Conjoint Analysis, Class Action, Class Action Lawsuits, Class Action Damage Models, Class Action Litigation, Class Certification, Economic Damages, Market Research, Marketing, Survey Design, Survey Research, Damage Calculations, Damages
Patricia Yanes serves as an expert witness for civil litigation, with a specialty in on conjoint analysis and discrete-choice methodologies for class actions. She has led domestic and international market research engagements for over a decade as a Principal at Applied Marketing Science, Inc. (AMS). Her litigation research experience includes supporting affiliated academic experts in the design and execution of high-stakes consumer litigation, and in preparing rebuttals. She has managed projects with testifying experts on cases related to deceptive advertising, class actions, patent infringement and more. Patty is a master of conjoint analysis, maximum-difference scaling (MaxDiff), total unduplicated reach and frequency (TURF), and choice-modeling techniques. Patty is a member of the American Association for Public Opinion Research (AAPOR), the Institute for Operations Research and Management Science (INFORMS), the Insights Association (IA), and Women in Research (WIRe). She has gu...
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Alex Babitsky

expert witness

Falmouth, Massachusetts
Legal, Marketing - directories, advertising, expert witness marketing
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Brian Sowers, MBA

Testifying Consumer Survey Expert

Applied Marketing Science, Inc.

Burlington, Massachusetts
Marketing, Advertising - Survey research, Lanham Act, trademark infringement, trade dress infringement, likelihood of confusion, dilution, secondary meaning, genericness, false/deceptive advertising, class action, Intellectual property
Federal and state level qualified consumer survey expert with 30 years market research experience. Principal at Applied Marketing Science, Inc., a full-service market research and consulting firm. Mr. Sowers has served as a testifying expert and submitted reports to Federal and State Courts, as well the Trademark Trial and Appeal Board, in a variety of litigation matters on behalf of plaintiffs and defendants. He has personally designed and conducted thousands of market research surveys across a broad range of modalities and a broad range of populations. Mr. Sowers hosts an annual CLE accredited webinar on survey evidence in Intellectual Property and serves as an editor for The Trademark Reporter. His expert services include survey design, implementation and analysis, expert report preparation, critique of opposing expert reports, expert testimony, guidance on the deposition and trial questioning of opposing expert witnesses.
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Amanda T. Bulian, MBA

Testifying Consumer Survey Expert

Applied Marketing Science, Inc.

Burlington, Massachusetts
Marketing, Advertising - Survey research, Intellectual property, Lanham Act, Trademark infringement, Trade dress infringement, Likelihood of confusion, Secondary meaning, Genericness, Dilution, False advertising, Deceptive advertising, Class action
Amanda T. Bulian is a senior manager at Applied Marketing Science, Inc. (AMS) and serves as a testifying survey expert on matters related to intellectual property, false and deceptive advertising, and class actions. At AMS, she provides expert research consultation and rebuttal critiques for consumer survey evidence in federal and state civil litigation matters and cases brought to the National Advertising Division (NAD). She has comprehensive experience designing and executing consumer surveys for matters involving trademark and trade dress likelihood of confusion, secondary meaning, and genericness, as well as surveys assessing consumer perceptions and materiality of allegedly deceptive advertising and marketing claims. Amanda’s expert services include survey design, data collection, experimental data analysis, expert report preparation, critiques of opposing expert reports, expert testimony, and guidance on the deposition and trial questioning of opposing expert witnesses. S...
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Alex Babitsky

expert witness

New Hampshire
Legal, Marketing - directories, advertising, expert witness marketing
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Larry Chiagouris, PhD

Intellectual Property & Class Action & Fraud

New York, New York
Marketing, Advertising - Survey research, Copyright & patent & intellectual Property, Fraud & class action, False & misleading advertising, Social media, Communications confusion and secondary meaning, Media claims, Misappropriation of image, Lanham act, Trademark & trade dress infringement, Trade secrets
NATIONWIDE SERVICES: LOCATIONS IN NEW YORK AND CHICAGO AND FLORIDA AND HAWAII Rare combination of an ADVERTISING and MARKETING expert who has substantial experience as BOTH a SENIOR EXECUTIVE and ACCOMPLISHED ACADEMICIAN. Dr. Larry Chiagouris has provided expert testimony and opinions on several issues, including damages, marketing, advertising, intellectual property issues (including the use of survey research) for plaintiffs and defendants. Opinions have been provided at federal/state court levels and arbitration venues for prominent firms to include Akin, Gump, Strauss Hauer & Feld LLP; Davis Wright Tremaine; Finnegan, Henderson, Farabow, Garrett & Dunner, LLP; Gibbons; Jones Day; Nixon Peabody; and Vorys, Sater, Seymour and Pease. Selected as one of 10 best and brightest researchers and called a branding guru and consumer behavior expert by the media. He is Past Chairman, Advertising Research Foundation and served as a member of the board of directors of the American Market...
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Tony Wright

SEO and Digital Marketing Expert - 25 yrs exp.

WrightIMC

Allen, Texas
Internet, Marketing - SEO, Search Engine Optimization, Google Adwords, Digital Advertising, Trademark, Website Development, crisis communication, public relations, advertising, advertising agency, AI, Advertising, Google, Bing, Wordpress, Defamation, brand reputation
Tony Wright offers over 26 years of expertise in interactive marketing and online reputation management. He is a valuable asset as an expert witness in legal cases involving digital marketing practices, online defamation, and brand reputation issues. He has also served as an expert witness in cases involving trademark disputes. Wright is an expert in search engine optimization with a background in traditional and digital public relations and journalism. Wright has successfully guided companies of all sizes through complex online challenges, helping them achieve profitability and manage crises effectively. Wright’s notable experience includes leading the online reputation management strategy for American Airlines after September 11, 2001. His extensive knowledge of corporate blogging, crisis communication, and digital brand strategy positions him as an authority. As the founder and driving force behind WrightIMC, he has overseen numerous interactive marketing, public relations, and...
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Rhonda Harper, MBA

Testifying Consumer Survey and Marketing Expert

Harper Litigation Consulting and Research

Dallas, Texas
Intellectual Property, Marketing - Trademark Survey, Advertising Survey, Consumer Survey, Secondary Meaning, Genericness, Fame, Dilution, Advertising, Class Action, Intellectual Property, Consumer Behavior, Licensing, Deceptive Trade Practices, Fraudulent Business Practices, Rebuttal, Likelihood of Confusion, Trademark Infringment, Standards and Practices, Marketing
Ms. Harper is a nationally recognized marketing and consumer perception expert retained by hundreds of law firms in high-stakes matters involving trademark infringement, false and misleading advertising, licensing disputes, branding conflicts, and complex marketing issues. Since 2005, she has been retained by more than 300 law firms to conduct or rebut nearly 300 litigation-focused consumer surveys and reports, author over 100 expert marketing reports, and testify more than 150 times. Her work is grounded in rigorous methodology, real-world marketplace experience, and a deep understanding of how consumers perceive brands, messaging, and competitive claims. With over 35 years of senior executive corporate leadership, Ms. Harper previously served as a Fortune 500 Chief Marketing Officer for two companies and as Senior Vice President and General Manager at a global communications agency. She has also served as an adjunct professor of marketing and is a successful serial entrepreneur....
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Robert W Palmatier, PhD

Top-Cited Sales and Marketing Expert

University of Washington & SAMS Institute

Oak Harbor, Washington
Marketing, Advertising - survey, brand, sales, trademark, misleading, trade secret, deceptive advertising, commercial best efforts, pharma, technology, retail, cpg, digital advertising, relationships, reasonable best efforts, beverage, eveready, loyalty, privacy, squirt
Robert W. Palmatier is the John C. Narver Endowed Chair in Business Administration and Tenured Professor of Marketing at the University of Washington's Foster School of Business. He is the founder and Research Director of the SAMS Institute (Sales and Marketing Strategy Institute), a global organization linking business and academics to generate knowledge in sales and marketing strategy. Professor Palmatier is the past Editor of both the Journal of Marketing (2018–2022) and the Journal of the Academy of Marketing Science (2015–2018) — consistently ranked among the top four highest-impact marketing journals globally. In those roles, he evaluated and made final publication decisions on thousands of peer-reviewed submissions, giving him unmatched insight into marketing research standards, methodology, and survey design. He has been recognized as the 6th most productive marketing scholar globally based on publications in premier marketing journals (2013–2022), ranked in the top 1% of ...
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