Certified Through: 12/31/2023

The Preferred Supplier program is about quality and confidence in the supply chain from start to finish. In order to display the Preferred Supplier seal, participating companies satisfy stringent acceptance criteria each year to ensure ongoing compliance. If they are a Preferred Supplier, you can trust they’ve taken the critical steps necessary to display the seal.

NASC Certified Supplier


TSI – Bringing Health to Life.

TSI is a world-class manufacturer of innovative and functional health products. Combining expertise from our Innovative Products, Bioactive Ingredients and Contract Manufacturing Divisions, we strive to create the highest quality products that maximize and maintain active, healthy lifestyles for consumers and companion animals alike.

TSI was founded in 1996 on the principle that quality must be the highest priority – both for our company’s success and for the benefit and integrity of an entire industry. Our continued commitment is to employ state-of-the-art operations and infrastructure to deliver best-in-class proprietary products that are functional, safe, and efficacious.

These capabilities partnered with our expertise allow us to create and commercialize solutions for a broad spectrum of health applications – ranging from muscle, bone and joint health to healthy ageing and sports performance.

Log in to your NASC member account to see more information and documentation on this Preferred Supplier.