Radix Market Research is comprised of a dedicated team of skilled individuals who strive to provide our clients with the best market research services available. To speak to a member of our team, call 416-924-7273 or 1-800-276-4161.


Senior Research Consultant & President
John Trumpener Ext. 221  
John has been developing and practicing robust tools and technologies in market research for over 20 years. The hallmarks of his work are to bring clarity to his clients' issues and problems, bringing fresh approaches to time-tested research methodologies to provide more insightful analysis and recommendations.

John is an expert in the application of multivariate statistical analysis to market research. He believes that these techniques are the best way to understand the complexities of consumer behaviour, and to clearly communicate the essential learning to clients without losing the nuances or getting bogged down in details. Working with the Radix team, John has developed many innovative research techniques, such as the wildly successful Brandscape Market Structure Study, and the TurfMAX Portfolio Optimization Tool. He is also a “consultant's consultant,” to whom other market researchers often turn for advice on difficult problems.

When not working, John enjoys racing sailboats, cooking diverse cuisines, and playing classical piano.





Senior Research Consultant
Cathy Ollerhead Ext. 229  
An elementary and high school teacher in her previous work life, Cathy joined the Radix team in 1997 after completing her MBA at the Schulich School of Business at York University. In her role as Senior Research Consultant, Cathy is a key member of the client service team, with experience in a wide range of B2B and consumer packaged goods markets. Recently she has been focusing on food service research, in both the restaurant and supplier sides of the market.

A busy mom to two young boys, Cathy also actively participates in a variety of sports including soccer, hockey and skiing. When she can find the time, she also enjoys scrapbooking and cottage life.





Technical Specialist
Chris Lau Ext. 226  
Chris joined our team in 1997. He manages all creative aspects of client projects, from product photography and digital imaging to creating product mock-ups. Over the years, Chris has generated many innovative ways in which to execute traditional research methodology, thereby revitalizing and improving time-tested market research techniques. This not only results in more engaged respondents, leading to more reliable data, but the creativity he brings to the table both delights and satisfies our clients. Chris is also skilled at supporting data programming and analysis and reviewing surveys in multiple languages.

When he is not in the office, you can find Chris on the golf course or building scale models.





Technical Consultant
Nick Passakas Ext. 234  
A member of the team since 2009, Nick uses his strong technical and organizational skills to help Radix deliver the insightful, visually-engaging learning that clients have come expect. Working in client liaison, survey preparation, field management and report building, he ensures that all the pieces of a complex project fall correctly into place. Often working behind the scenes, he is a key component of the engine that keeps Radix moving forward.

When not in the office, Nick enjoys playing music, spending time outdoors, travelling, skiing, snowboarding, biking and golfing.






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