Who is Nu-Tek
Our Story
Nu-Tek believes that biotechnology can be sustainably fueled through plant- and yeast-based cell culture nutrients. Our products, used by globally recognized industry leaders, support a variety of applications from mammalian cell culture to industrial fermentation. We also supply companies leading in clinical nutrition and medicinal foods, such as allergen-free probiotics. With decades of experience and world-wide distribution, Nu-Tek BioSciences is your preferred partner for animal-free yeast extracts and plant-based peptones.
Your Partner for Culture Media and Fermentation Supplements
Nu-Tek BioSciences is the solutions-based manufacturer for the pharmaceutical and biotechnology industries. Our customers require expert capabilities to meet production goals; our audit-ready, state-of-the-art facility and superior customer service ensure your needs are always met. Our audit-ready facility is GMP, ISO certified, and EcoVadis rated, supporting your supplier quality and sustainability requirements. We serve today’s global industry leaders, and are committed to delivering premium products to support your future manufacturing needs.
Contact our team today to learn more about your options and how Nu-Tek can meet your product needs.


Your Partner for Culture Media and Fermentation Supplements
Nu-Tek BioSciences is the solutions-based manufacturer for the pharmaceutical and biotechnology industries. Our customers require expert capabilities to meet production goals; our audit-ready, state-of-the-art facility and superior customer service ensure your needs are always met. Our audit-ready facility is GMP, ISO certified, and EcoVadis rated, supporting your supplier quality and sustainability requirements. We serve today’s global industry leaders, and are committed to delivering premium products to support your future manufacturing needs.
Contact our team today to learn more about your options and how Nu-Tek can meet your product needs.

Nu-Tek’s Emphasis on Collaboration and Partnering
Nu-Tek knows that collaboration is the key to success. Pharmaceutical breakthroughs rely on communication, data management, and expertise to meet therapeutic goals. Nu-Tek’s team is committed to delivering premium products to support your manufacturing needs. Our dedication to customer service is expressed through our quality system, continuous improvement programs, and expert Variability Reduction Program. Contact us to learn how we can put our culture of excellence to work to support you.
Our People
Garrett Tisdel
Director of Quality
William "Rocky" Fenske
Director of R&D
Courtney Jones
Director of Commercial Development
Joy Aho
Director of Technical Program Management
Zack Paulakovich
National Account Manager
Jeff Dahle
Plant Manager
Ashley Jameson
HR Manager
Thomas Yezzi
Founder & CEO

30+ years of experience in food ingredient & biotech industries. Serial entrepreneur with focus on early-stage companies leading them from start-up through commercial phases. Co-founder of Nu-Tek Salt; former VP of Operations at Protient. BS and MS in Food Science from the University of Minnesota.
Kent McCoy
Chief Financial Officer

30+ years of experience in public and private accounting, including numerous years of senior-level leadership with high tech and food ingredient companies. Has led IPO, private equity/debt, and M&A transactions. CPA and Management Accountant. BA in Accounting from the University of Minnesota.
Chris Wiedel
Chief Business Officer

10+ years of experience in the biotech industries, selling and marketing cell culture media and the ingredients that comprise them. BS in Biology from Towson University, MBA and Master of Finance from the University of Maryland.
Ashley Jameson
HR Manager

10+ years of experience in people operations and human resources across public, private, and high-growth tech companies. Demonstrated leadership in global mobility, employee engagement, and process optimization. Former U.S. Army Reserves HR Officer with a strong foundation in compliance and personnel management. BS in Human Resource Management from University of Colorado.
Jeff Dahle
Plant Manager

30+ years of experience working in manufacturing operations, previously holding leadership positions at Vision Processing Technologies/Kerry Ingredients and Zumbro River Brand/Balchem.
Zack Paulakovich
National Account Manager

8+ years of key account management and strategic market development in the Biopharmaceutical industry, with a focus on critical raw materials. BA in Biology with a minor in Chemistry from Adrian College and Masters of Physiology from North Carolina State University.
Joy Aho
Director of Technical Program Management

18+ years of experience in life sciences and biotechnology industries with a focus on innovative product management and development to support research, clinical, and commercial-phase therapeutic developers. Ph.D. in Molecular, Cellular, Developmental Biology & Genetics from the University of Minnesota.
Garrett Tisdel
Director of Quality

10+ years in the pharmaceutical and food ingredient industries overseeing manufacturing and building ISO & SQF quality systems. BS in Biochemistry and Biology from Bemidji State University and Master of Leadership Development from Walden University.
William "Rocky" Fenske
Director of R&D

40+ years of experience in plant protein process developments and hydrolysis of plant and grain-based ingredients. Former VP of R&D at SunOpta, Inc. BS in Food Science from University of Minnesota.
Courtney Jones
Director of Commercial Development

15+ years of experience in the biotechnology and pharmaceutical field, with an emphasis on product management, market development, and communications. BA in Biology from Macalester College and MBA in Marketing from the University of Minnesota Carlson School of Management.

Contact our team today to learn more about your options and how Nu-Tek can meet your product needs.









