Marketing Expert Witnesses
Marketing expert witnesses and consultants listed here may be able to form expert opinions, draft expert witness reports, provide expert witness testimony at deposition and/or trial as or serve as consulting (non-testifying) experts on marketing. The marketing expert witness listings on this page are typically from fields/areas of expertise such as: Advertising, Artificial Intelligence, Business Operations, Communications, Computers, Defamation, Electronics, Engineering, Information Technology, Intellectual Property, Marketing, Medical Devices, and Search Engine Optimization.
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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
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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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Robert J. Fisher
Defamation and Reputation Harm Expert Witness
Fisher & Associates, Inc.
Westlake Village, California
Defamation, Communications
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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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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
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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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Dan Stratford, MBA
Digital Marketing Expert - 30 Years of Experience
Stratex Digital Marketing
HIGHLANDS RANCH, Colorado
Search Engine Optimization, Marketing
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seo, marketing, google ads, search engine optimization expert witness, Influencer Marketing, programmatic, affiliate marketing, artificial intelligence, email marketing, digital marketing, influencer, affiliate, adwords, bing, social media, facebook, instagram, tiktok, amazon, internet marketing
I am a digital marketing strategist, executive, and expert witness with over 30 years of professional experience in internet-based marketing, online advertising, website technologies, and digital data systems. I began my career in the mid-1990s, prior to the existence of Google, when the discipline was commonly referred to as “Internet Marketing.” Since that time, I have worked continuously in hands-on, executive, and advisory roles involving search engines, paid advertising platforms, websites, analytics systems, social media platforms, eCommerce, affiliate marketing, influencer marketing, and digital monetization models.
My professional expertise includes Search Engine Optimization (SEO); Search Engine Marketing (SEM/PPC); Google Ads; paid social advertising; website development; analytics and attribution; email and marketing automation; programmatic and retargeting advertising; reputation management; influencer marketing (including the Amazon Influencer Program); affiliate marke...
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Sanjay Ranka
Computer Science: IPR, Infringement, Invalidity
Distinguished Professor, Computer Science, University of Florida, Gainesville
GAINESVILLE, Florida
Computers, Information Technology
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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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William R Bradford, DBA
Electronic Components Commercial Executive
Impact Technology Advisors, LLC
Johns Creek, Georgia
Electronics, Business Operations
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Semiconductors, Sales, Industrial Distribution, International, Components, Marketing, Supply Chain
Experienced senior executive, consultant, entrepreneur, researcher, expert witness, coach/mentor, lecturer & keynote speaker with strong record of international management, merger integration, strategy, sales, marketing, channel management & business development leadership in semiconductor industry. Repeated success at transforming organizations through recruitment of high performing management teams, leading complex cross-functional re-engineering initiatives, negotiating & resolving contracts, and developing/ implementing sales & marketing processes and corporate strategies. Acknowledged for analytical capabilities, sound business judgment, ability to communicate at all levels in an organization, garnering buy-in on strategies & solutions and establishing high-level of credibility with internal & external executive management.
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Patricia Yanes
Consumer Survey Expert – Class Actions
Applied Marketing Science, Inc.
Burlington, Massachusetts
Marketing, Advertising
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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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Moiz Khan, PhD
Surgical Robotics Expert Witness
Consult Robotics
North Grafton, Massachusetts
Engineering, Medical Devices
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surgical robotics, medical robotics, robotics, rehabilitation, simulation, design, strategy, marketing, endoluminal, orthopedic, artificial intelligence, AI
Dr. Moiz Khan is a senior robotics and artificial intelligence expert with deep experience at the intersection of advanced engineering systems, AI enabled physical technologies, and real world deployment. He currently serves as Head of Market Development, where he leads strategy and technical engagement across robotics, autonomy, embedded systems, and AI driven manufacturing, working closely with industry, academia, and government stakeholders.
Dr. Khan holds a PhD in Mechanical Engineering with a focus on medical and rehabilitation robotics from Columbia University and completed postdoctoral training at Harvard Medical School in surgical robotics, where he developed minimally invasive surgical systems and algorithms. His academic background spans robotics, control systems, perception, simulation, and human machine interaction, with applied experience across healthcare, autonomous systems, industrial automation, and embedded AI platforms. He has published numerous papers in leading...
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Sarah Vancini, MBA
Testifying Marketing AI Expert Witness
Boston, Massachusetts
Artificial Intelligence, Marketing
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Artificial Intelligence, Expert witness testimony, Marketing, Brand Strategy, Federal District Court, Content marketing, Technology Patent, Marketing strategy, AI marketing, Data analytics, Marketing automation software, Brand positioning, Machine learning, Machine learning advertising, Healthcare marketing, B2B marketing, IP
Ms. Sarah Vancini specializes in developing AI software for marketing professionals and has served as an expert witness in Federal District Court for cases related to patent law infringement involving AI tools. As a Marketing Strategist and Data Analyst, she has worked with Fortune 50 companies including CVSHealth, Black Stone, and Mass General Brigham. She holds an MBA from a top 25 school and has earned more than 20 advanced certifications from Google, Hubspot, and Meta.
Her professional experience includes tactical planning across trade, media, programmatic, and digital channels for a Fortune 100 consumer goods and healthcare conglomerate with $5.3B in annual revenue. She also led the rebrand of a Fortune 500 SaaS firm in preparation for an exit event.
In addition, Ms. Vancini has managed Google Ads for seven cardiovascular devices, including pumps and stents, for a medical device company with $34.6B in annual revenue. She conducted market analysis for the insurance market for ...
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Sameer Singh Somal, CFA, CFP, CAIA
Defamation, Business Damages & Valuation Expert
Blue Ocean Global Technology
Doylestown, Pennsylvania
Defamation, Information Technology
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Financial Damages, Economic Damages, Internet Defamation, Digital Marketing, Business Valuation, Libel Slander, Reputation Management, Search Engine Optimization, Marketing, Public Relations, Cyber Investigations, Digital Forensics, Social Media, IP Damages, YouTube, Instagram, Facebook
Sameer leads a 250+ member team at Blue Ocean Global Technology and Capital Expert Services, specializing in litigation consulting and expert witness engagements. Given the unique nature of each case, Sameer offers a competitive advantage through an integrated team approach, including legal research, data analytics, private investigations, digital forensics, financial analysis, academic insight, and interviews. His team is strategic with client resources, ensuring that reports are developed collaboratively to achieve a blended rate. Co-experts are added strategically on merit. When engaged directly, all reports and testimony reflect Sameer's independent professional opinions
Sameer has consulted on 400+ cases and regularly delivers CLE programs for State Bar Associations. He is a former investment and private banker, which affords him a framework for calculating damages on a wide range of case mandates. Over the past decade, Sameer's responsibilities at CFA Institute include publis...
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Rhonda Harper, MBA
Testifying Consumer Survey and Marketing Expert
Harper Litigation Consulting and Research
Dallas, Texas
Intellectual Property, Marketing
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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....
