Stacy Burns-Guydish, Ph.D. has over 20 years of experience in transformative biotechnology applications with pathogenic, therapeutic, and industrial relevant microbes. She developed breakthrough technologies for bacterial production of a biochemical resulting in intellectual property and patents, scaled up a strict anaerobic fermentation to 100,000L, and developed bioluminescent sensors for real time in vivo imaging.

Stacy joined List Labs in 2016 and has directed the development and manufacturing of several live biotherapeutic and toxin therapeutic drug products for Phase I and II clinical trials. She served as the VP of Biotherapeutic Development and Manufacturing, contributing to List Labs’ strategic plans and overseeing upstream and downstream process development, scale-up, and cGMP manufacturing of client and List Lab products. Stacy earned her Ph.D. in microbiology and immunology from Baylor College of Medicine and completed her postdoctoral training at Stanford University School of Medicine.

Kent Davis has over 20 years of experience in the biopharmaceutical industry including cGMP platform technologies for monoclonal antibodies, bacterial proteins, and live biotherapeutics for Phase I, II, and III clinical trials. His background includes process development, technical transfer, manufacturing, and operations. Kent serves as a subject matter expert in downstream processing techniques, including fermentation harvest (dead-end filtration, TFF, and centrifugation), chromatography, and UF/DF. He helped to pioneer the design and development of sterile/single-use/disposable supplies and associated equipment for use in the manufacturing of a potential commercial product for a patient-specific immunotherapy.

Kent joined List Labs in 2009, and currently directs manufacturing activities including lab support, microbiology, fermentation, purification, and process development teams. He earned his BS in chemical/biochemical engineering from the University of California, Davis.

Helen brings over two decades of financial leadership experience in the life sciences and technology sectors. She joined List Labs in 2024 to oversee financial operations. Her expertise includes building strong internal controls, managing M&A integrations, and supporting organizational growth through data-driven decision-making.

Kristyna Aviles joined List Laboratories in 2023 as the Sr. Director of Quality and Compliance. Ms Aviles oversees the List Labs’ Quality Organization, including Quality Assurance, Quality Control and Analytical Development functions. She is an accomplished Quality leader with over twenty years of experience in the biopharmaceutical and medical device industries. In previous roles, she has successfully managed regulatory inspections, driven numerous Quality System integration and improvement projects, and led Quality Risk Management programs.  Along with her comprehensive Quality knowledge, Kristyna brings to List Labs her leadership skills for implementation of Quality policies, programs, and initiatives for supporting development and cGMP manufacturing of novel therapeutics. Kristyna is committed to partnering with the List Labs’ customers to deliver Quality Products to allow them to serve their patients. She earned her BS in Microbiology from California Polytechnic State University.

Gary Joined List Labs in 2020, bringing over 25 years of biotech sales and business development experience to List Labs. Whether linking clinical stage drug developers to the expertise and manufacturing capacity that is crucial to their project’s success, introducing disruptive automation technology to the clinical diagnostics market, or designing custom consumables for high-throughput automation,  structuring mutually beneficial contracts with some of the largest commercial and research organizations in the world has been a key focus of his career.  Gary takes tremendous satisfaction in the construction and completion of a well-planned project that propels his customer forward on their trajectory of success. Although college educated in business and organizational communication, Gary attributes his success to the experience and insights gained in the field through market immersion and conversations with the true industry experts, the customer.

Rosa joined List Labs in 2016, bringing over 15 years of experience in human resources and operational leadership. Her strategic, people-centric approach enhances organizational support and cultivates a strong culture. Rosa studied business administration, with a specialization in human resource management, laying the groundwork for her dynamic career in HR and administrative leadership across the semiconductor and financial software sectors. She is dedicated to implementing practical solutions, such as streamlining hiring processes, optimizing performance management practices, fostering a vibrant workplace culture, and championing policies that enhance employees’ experiences. In addition, Rosa enhances efficiency and reliability across key business functions. Beyond HR, she manages IT, Technical Support, Customer Service, and Logistics Operations. Rosa is passionate about building robust teams, nurturing leadership development, fostering inclusive workplaces, and achieving operational excellence. She does this while ensuring all organizational practices and policies comply with labor laws, regulatory requirements, and internal standards.