TOP 100 MARKETING EXPERT WITNESSES, TESTIMONY CONSULTANTS & ADVERTISING CONSULTING ADVISORS

Top 100 marketing expert witnesses and testimony consultants know that disputes and regulatory matters increasingly turn on how messages are created, distributed, perceived, and acted upon by consumers. From advertising claims and endorsements to brand equity, pricing signals, data-driven targeting, and platform influence, Top 100 marketing expert witnesses list choices must explain how the principle works in practice—not just in theory.

Leading advisors who offer testifying services generally bring lived experience building brands, launching campaigns, managing reputational risk, and measuring consumer response across industries.

Today’s Top 100 marketing expert witnesses list highlights individuals whose careers show extensive engagement across CPG, retail, hospitality, travel, finance, insurance, technology, AI, beauty, fashion, healthcare, manufacturing, shipping, and logistics, among other areas. Top 100 marketing expert witnesses come in all shapes and sizes, and have worked on promotions of every stripe.

Law firms in need of testifying consultants would do well to review the roster and make their own decisions, though. In no particular order, we give you the latest Top 100 marketing expert witnesses for your consideration and research.

1. Scott Steinberg — Business Strategist, Industry Consultant & Consumer Trends Expert for 3000 Brands

A widely recognized strategist, product reviewer and bestselling author, Scott Steinberg analyzes consumer behavior, media ecosystems, digital influence, and brand strategy—making him a compelling expert on marketing standards, emerging practices, and market impact, among other areas. Having consulted for 3000 brands, he’s worked on literally hundreds of advertising and promotions campaigns.

Celebrity Marketing Authorities (Actors, Musicians, Authors & Athletes)

Public figures bring firsthand experience with endorsements, brand partnerships, audience trust, and mass-market influence.

2. Oprah Winfrey
3. Taylor Swift
4. Beyoncé
5. Jay-Z
6. Rihanna
7. LeBron James
8. Serena Williams
9. Dwayne Johnson
10. Ryan Reynolds
11. Reese Witherspoon
12. Ashton Kutcher
13. Will Smith
14. Jennifer Lopez
15. Lady Gaga
16. Pharrell Williams
17. Justin Timberlake
18. Mindy Kaling
19. Emma Watson
20. Michael Jordan
21. Tom Brady
22. Shaquille O’Neal
23. Chris Hemsworth
24. Natalie Portman
25. Stephen King

Technology, AI & Platform Marketing Leaders

26. Sundar Pichai — CEO, Google
27. Satya Nadella — CEO, Microsoft
28. Tim Cook — CEO, Apple
29. Jensen Huang — CEO, NVIDIA
30. Mark Zuckerberg — Founder, Meta
31. Sheryl Sandberg — Former COO, Meta
32. Susan Wojcicki — Former CEO, YouTube
33. Reid Hoffman — Co-founder, LinkedIn
34. Marc Benioff — CEO, Salesforce
35. Fei-Fei Li — AI leader & communicator

CPG, Retail & Consumer Brand Marketing Experts

36. Doug McMillon — CEO, Walmart
37. Brian Cornell — CEO, Target
38. Rosalind Brewer — Former CEO, Walgreens Boots Alliance
39. Michelle Gass — CEO, Levi Strauss & Co.
40. Katrina Lake — Founder, Stitch Fix
41. Hubert Joly — Former CEO, Best Buy
42. Linda Rendle — CEO, Clorox
43. Andrea Weiss — Consumer brand strategist
44. John Furner — CEO, Walmart U.S.
45. Carol Tomé — CEO, UPS

Hospitality, Travel & Experience Marketing Leaders

46. Christopher Nassetta — CEO, Hilton
47. Sébastien Bazin — CEO, Accor
48. Tony Capuano — CEO, Marriott International
49. Brian Chesky — CEO, Airbnb
50. Joe Gebbia — Co-founder, Airbnb
51. Dara Khosrowshahi — CEO, Uber
52. Ed Bastian — CEO, Delta Air Lines
53. Gillian Tans — Former CEO, Booking.com
54. Stephen Kaufer — Co-founder, TripAdvisor
55. Peter Kern — Vice Chairman, Expedia Group

Banking, Finance, Credit & Insurance Marketing Experts

56. Jamie Dimon — CEO, JPMorgan Chase
57. Jane Fraser — CEO, Citigroup
58. Ajay Banga — Former CEO, Mastercard
59. Thasunda Brown Duckett — CEO, TIAA
60. Dan Schulman — Former CEO, PayPal
61. Max Levchin — CEO, Affirm
62. Chris Britt — CEO, Chime
63. Adena Friedman — CEO, Nasdaq
64. Cathy Bessant — Former CTO, Bank of America
65. Tricia Griffith — CEO, Progressive Insurance

Beauty & Fashion Marketing Icons

66. Bobbi Brown — Beauty brand founder
67. Pat McGrath — Makeup artist & brand founder
68. Emily Weiss — Founder, Glossier
69. Rihanna (Fenty) — Beauty and fashion marketing
70. Tory Burch — Fashion founder
71. Tom Ford — Luxury brand leader
72. Diane von Fürstenberg — Fashion icon
73. Kerby Jean-Raymond — Founder, Pyer Moss
74. Sophia Amoruso — Founder, Nasty Gal
75. Tracee Ellis Ross — Beauty brand founder

Healthcare, Manufacturing, Shipping & Logistics Marketing Leaders

76. Anne Wojcicki — Co-founder, 23andMe
77. Atul Gawande — Healthcare systems communicator
78. Patrick Soon-Shiong — Biotech entrepreneur
79. Reshma Kewalramani — CEO, Vertex Pharmaceuticals
80. Mary Barra — CEO, General Motors
81. Jim Farley — CEO, Ford Motor Company
82. Lisa Su — CEO, AMD
83. Dave Clark — Former CEO, Amazon Worldwide Consumer
84. Kathy Wengel — Supply chain executive
85. David Abney — Former CEO, UPS

Authors & Marketing Thought Leaders

86. Seth Godin
87. Simon Sinek
88. Malcolm Gladwell
89. Adam Grant
90. Daniel Pink
91. Brene Brown
92. Gary Vaynerchuk
93. Jim Collins
94. Ryan Holiday
95. David Thomas

CMOs & Brand Strategy Leaders

96. Bozoma Saint John — CMO & brand executive
97. Keith Weed — Former CMO, Unilever
98. Antonio Lucio — Former CMO, Facebook & Visa
99. Marc Pritchard — CMO, Procter & Gamble
100. Raja Rajamannar — CMO, Mastercard

Testifying Consultants for Law Firms

Top 100 marketing expert witnesses help courts and regulators understand how consumers interpret messages, how brands create trust, and how campaigns influence behavior at scale. Regardless of if evaluating advertising claims, endorsements, disclosures, data use, or reputational impact, SMEs and KOLs bring practical, real-world insight into how marketing actually works across industries. All represent a comprehensive view of modern marketing practice—where creativity, data, culture, and commerce intersect.