Who We Are


Headquartered in Toronto, Canada, Thomson Research Associates (TRA) is a global leader in the field of antibacterial, antifungal, antimicrobial, antialgal, and anti-dust mite treatments (See Regulatory Information).

We are committed to helping clients deliver fresh, durable, and innovative products by providing antimicrobial additives and treatments for textiles, plastics, foams, coatings, and more.

We offer unmatched antimicrobial expertise, established brands, and comprehensive services. Our state-of-the-art antimicrobial laboratories specializing in Microbiology, Chemistry and Application Testing will collaborate with you to develop a powerful antimicrobial program.

Offering on-going Quality Control (QC) services, we are committed to delivering maximum antimicrobial performance to our customers.

The Antimicrobial Experts

Our ultimate goal is to satisfy our clients’ specific needs through excellence in service, science, and support. We are committed to delivering freshness, durability and innovation. Find out how we work with you through our scientific testing laboratory, highly-qualified technical and regulatory specialists, and our unmatched anti-microbial expertise.

Supplying our Antimicrobial Additives Globally

We have a global reach, selling antimicrobial additives in more than sixty countries. The Ultra-Fresh brand promise of performance and durability is world renowned, and Silpure, a breakthrough in the use of silver-based antimicrobials for the textile industry, has been enthusiastically adopted by manufacturers worldwide.

Read our latest blog about what to look for when researching antimicrobial companies or contact us for more information.

More than Sixty Years of Antimicrobial Protection

TRA at a Glance

  • Founded in 1955
  • Offers in-the-field technical expertise
  • Staffs full-time team of qualified scientists and antimicrobial technologists
  • Features a diverse portfolio of antimicrobial additives
  • Delivers solutions for a wide range of end-uses and antimicrobial applications