Mark Keegan
Seasoned testifying expert with over 25 years of experience. Regularly testifies on likelihood of confusion, secondary meaning, false advertising, and related issues.
We provide attorneys with independent and reliable B2B and consumer survey research solutions
Likelihood of Confusion | Secondary Meaning | Lanham Act | False Advertising
Survey Intelligence
Mark Keegan testified about his survey results measuring likelihood of confusion among relevant consumers. The court ruled in Van Leeuwen’s favor.
Cutting Edge Research
A strong methodological foundation is the key to effective consumer surveys for litigation. Here is what we build on.
Meet the team
Seasoned testifying expert with over 25 years of experience. Regularly testifies on likelihood of confusion, secondary meaning, false advertising, and related issues.
Consulting on complex litigation matters since 2004, with extensive experience in research, strategy, survey design, data analysis, and case management.






Contact Mark & Tony
Survey Cost
We tailor our consumer research studies to meet the specific needs of each case.
Let’s Talk
31 Purchase Street
Rye, New York 10580
(914) 967-9421
info@keegandonato.com
Keegan & Donato Consulting provides a nationwide service to attorneys practicing in federal and state courts, before arbitration panels, the Trademark Trial and Appeal Board, and other specialty venues. Our offices are in Rye, New York, just north of Manhattan.
Contact Mark & Tony