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About Us

Winpact Scientific Inc. is the U.S. branch office of Major Science, dedicated to providing advanced bioprocessing solutions to research laboratories, academic institutions, and biotechnology companies across North America. As part of Major Science’s global network, we bring world-class fermentation and cell-culture technology directly to the U.S. market, backed by responsive local support and application expertise.

Winpact is the bioprocessing brand of Major Science, representing more than two decades of innovation in fermentation, bioreactor design, and laboratory process control. Built on the principles of quality, reliability, and scientific advancement, Major Science has earned a worldwide reputation for delivering dependable, user-focused equipment that supports research from benchtop discovery to pilot-scale development.

At Winpact Scientific, our mission is to help researchers build bioprocessing systems that fit their exact applications—whether microbial fermentation, mammalian cell culture, gas-control optimization, or advanced process development. We offer complete solutions built around the Winpact controller and vessel platform, along with the expert guidance needed to configure each system for your specific workflow.

With global engineering and manufacturing from Major Science and dedicated service in the United States, Winpact Scientific combines international experience with local support to ensure every lab has access to dependable, high-performance bioprocessing technology.

End-to-End 24/7 Customer Support


From initial consultation to full implementation, we’re with you every step of the way, ensuring that all aspects of your business are optimized, giving you the tools and resources needed to achieve lasting results.

Expert Guidance for Long-Term Success


Our team provides the expertise and strategic insight needed to help your business thrive in a competitive landscape. We create tailored solutions that foster sustainable growth and long-term success.

Frequently asked questions

Here are some common questions about our company.

Winpact Scientific Inc. provides comprehensive support for bioprocessing, fermentation, and cell-cultivation applications across research, biotech, and industrial laboratories. As the U.S. branch office of Major Science, we offer end-to-end solutions including system configuration, technical consultation, application guidance, and full after-sales support. Our team works directly with researchers and process developers to design customized Winpact fermentation and cell-culture systems—including benchtop bioreactors, solid-state systems, and pilot-scale SIP fermenters—tailored to each customer’s workflow and experimental requirements.

We also provide installation services, training, troubleshooting assistance, and access to a complete portfolio of vessels, probes, and optional accessories. Whether you’re building a new lab, upgrading an existing process, or scaling toward production, our experts ensure you have the right tools, the right configuration, and reliable ongoing support to achieve consistent, high-quality results.

Yes! Major Science holds ISO 9001 and DUNS certifications. We can provide certificates upon request. 

You can reach our customer support team by emailing info@majorsci.us. Our dedicated team is available to assist with any inquiries or issues.

We’re committed to providing prompt and effective solutions to ensure your satisfaction.

Major Science offers a 1 year warranty against defects in materials and workmanship on all products including fermentation systems. Additional extended warranty periods and multi-year service plans can be purchased through Winpact Scientific Inc. Please inquire for details.
Yes! Installation and training is available by a Major Science technician. Additional costs apply.