High-Quality Yeast Cultures & Fermentation Expertise for Brewing Professionals

Founded in 1996, The Brewing Science Institute (BSI) is located at 8,500 feet in the scenic foothills of Colorado’s Pikes Peak. From this vantage point, we serve professional brewers across the country with one mission: to help you brew better beer through science.

At BSI, we specialize in premium-quality liquid yeast cultures, advanced laboratory services, and technical brewing support tailored to the needs of commercial breweries. We believe that great beer starts with great science—and we’re committed to helping brewers deepen their understanding of fermentation, microbiology, and brewing technology.

A Legacy of Brewing Science

BSI is led by partners David Bryant and Bryan Pearson, who bring over 40 years of combined experience in brewing microbiology and fermentation science. Their real-world expertise allows us to provide practical, personalized solutions to the daily challenges brewers face. Whether you’re troubleshooting a fermentation issue or selecting the perfect strain for a new recipe, our team is here to help.

Proudly Employee-Owned

As of 2023, The Brewing Science Institute is an employee-owned company through an Employee Stock Ownership Plan (ESOP). This transition marks an exciting new chapter in our journey—one that reflects our belief in shared success, long-term stability, and deep commitment to our people and customers.

Employee ownership means that every member of our team has a personal stake in the quality of our work, the satisfaction of our clients, and the future of the brewing industry. It reinforces our culture of accountability, collaboration, and continuous improvement.

At BSI, we don’t just work for the business—we own it. And that means we’re more invested than ever in helping our fellow brewers thrive.

Personalized Support, Professional Results

BSI operates with the care and attention of a small business, offering one-on-one consultations with qualified fermentation specialists—not call centers or generic support. Every recommendation we make is grounded in data, expertise, and a genuine desire to help you succeed.

Education, Innovation & Integrity

Beyond being a trusted supplier of yeast and brewing bacteria, BSI is also an educational resource. We provide free tools, guides, and insights to support ongoing learning and improve product quality across the industry.

From contamination testing and troubleshooting to process optimization and strain recommendations, our lab is a trusted partner in your brewing journey.

Your Fermentation Partner

Whether you’re scaling up production or dialing in your process, BSI is here to support you every step of the way. Explore our yeast catalog, lab services, and resources to discover how we can help elevate your brewing.

Get in touch—we look forward to partnering with you!