Expert Partnerships. Powerful Insights.

Hi! We're Great Lakes Marketing Research -- but our friends call us GLM.

How can we help?

Transforming data into decisions since 1964

Founded in 1964 in Toledo, OH, GLM has been serving clients around the world for 60+ years. We're a full-service marketing research, consumer insights, and product testing firm. We collect timely and valuable information our clients can use to make strategic, evidence-based decisions. Read more about our history here.

On average, our leadership team of research professionals has been with us for 20+ years. We’re motivated by delivering insights that fuel progress in organizations across the U.S. We're proud to have earned trust at every level of business, from small, beloved local companies to the country's largest federal agencies. We credit our company's values of cultivating respect and meaningful, rewarding relationships with our community and our clients for guiding our work.