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Who We Are

Theiagen is a data analysis company staffed by Next Generation Sequencing (NGS) and public health experts, committed to improving infectious disease control, food safety, molecular diagnostics, and environmental monitoring.

Our academic, governmental, and industry expertise contributes knowledge from a diverse range of projects including infectious disease surveillance, cancer research, biofuel developments, and microbial strain engineering. Hence, we bring unparalleled expertise to your table, allowing you to benefit from decades in the field.



A world where genomic insights accelerate global progress



To harness the full potential of genomics

What We Believe

Genome sequencing technologies used to be the domain of large academic institutions or governmental research groups. However, we believe in the democratization of technical expertise through collaborative knowledge sharing, workflow support, and world-leading data analysis services.

This democratization can allow any clinical, environmental, or food safety organization to achieve their strategic and scientific goals, regardless of their size and resource availability.

We believe that achieving results should be quicker, more affordable, and have higher resolution and accuracy than ever before.

Our Team

Joel R. Sevinsky

Joel R. Sevinsky


Ph.D. in Molecular, Cellular, and Developmental

Biology from CU Boulder

BA in Microbiology from UC Santa Barbara

Dr. Sevinsky has leveraged over two decades of experience in systems biology and has taken aim at transforming public health and infectious disease surveillance through innovative implementation of NGS and bioinformatics technologies. During a three-year tenure at the Colorado Department of Public Health and Environment, he led several initiatives to build NGS testing and bioinformatics capacity at the state, regional, and national levels.

In 2019 Dr. Sevinsky’s ambitions to impact public health exceeded his role as a government scientist, resulting in the formation of Theiagen Genomics. Dr. Sevinsky and his team now work with over four dozen public health laboratories nationally and more than a dozen internationally across Africa and Asia.

Kevin G. Libuit

Kevin G. Libuit

Chief Technology Officer

MS and BA in Biology from James Madison University

Kevin is a public health scientist who has dedicated his career to addressing the challenges of integrating DNA sequencing and bioinformatics technologies that strengthen public health decision-making.

Through his advocacy for collaborative and open-source bioinformatics development, Mr. Libuit has become a key figure in public health bioinformatics. He co-founded the State Public Health Bioinformatics (StaPH-B) consortium and currently serves as Vice-Chair of the Public Health Alliance for Genomic Epidemiology’s (PHA4GE) Bioinformatics Working Group.

Mr. Libuit has also served as the Bioinformatics Lead Scientist for the Commonwealth of Virginia , where he was responsible for the development and implementation of bioinformatics solutions for public health laboratories across the Mid-Atlantic Region, USA.

As the Chief Technology Officer of Theiagen Genomics, his role is to advance bioinformatics integration for our public health partners. This work has led to the adoption of Theiagen’s open-source solutions by over 40 US state and local public health laboratories and dozens of academic and government institutions across both South-East Asia and Western Africa.

Mr. Libuit’s success in these initiatives stems from his ability to communicate directly with public health scientists facing critical challenges and allow these conversations and relationships to guide Theiagen’s software and training development priorities.

Andrew J. Page

Andrew J. Page

Director of Technical Innovation

Ph.D. in Computer Science and BSc in Computer Science and Software Engineering from National University of Ireland Maynooth

Prof. Andrew Page has over 15 years of experience in bioinformatics, specializing in infectious disease bioinformatics, next-generation sequencing, and machine learning. His Ph.D. studies in machine learning and distributed computing have informed his approach to microbial bioinformatics, first at the Wellcome Sanger Institute in Cambridge, UK, and then as Head of Informatics at the Quadram Institute in Norwich, UK.  Andrew has developed over 30 open-source tools, many of which are widely used in public health worldwide, such as Roary and Gubbins. He currently has over 150 peer-reviewed publications, spanning the fields of microbial genomics, bioinformatics, distributed computing, sequencing methods, and machine learning.

Andrew is a member of the Advisory Committee on the Microbiological Safety of Food, providing expert advice to the UK Government Food Standards Agency, and is a visiting professor at the University of East Anglia. During the COVID-19 pandemic, he led a SARS-CoV-2 sequencing and bioinformatics analysis lab, sequencing and analyzing over 80,000 genomes for the UK and 13 other countries with COG-UK.

Andrew co-hosts multiple podcasts: The MicroBinfie Podcast, The Bioinformatics Lab, and Research Pages, sharing expert knowledge on AI and bioinformatics with the world.

Gregory S. Legacki

Gregory S. Legacki

Chief Operating Officer

B.S. in Economics Specialization in Accounting from Cornell University of Ithaca NY

Gregory S. Legacki is a business-minded professional with a passion for innovation and strategic leadership. His dynamic career, which  spans pioneering start-ups to leading operations in large government organizations, has informed his  exceptional ability to drive positive change and deliver results.

Gregory’s innovation mindset, which combines strong leadership skills with a unique balance of critical and creative thinking has led to the development of ground-breaking solutions that have redefined operational success in various organizations. He is passionate about creating value through excellence and is always eager to embrace new challenges and opportunities.

Marcela I. Huergo

Marcela I. Huergo

Chief of Staff

MBA, Tuck School of Business at Dartmouth

BA, Universidad de Buenos Aires, School of Economics

Marcela Huergo is a business executive with over 20 years of experience in large corporations, start-ups, and consulting firms, helping businesses and clients expand into new markets and products and scaling operations. Her industries of expertise include health care, retail banking, automotive, logistics, and real estate. 

As Chief of Staff at Theiagen, Marcela is a member of the Executive Team. She leverages her extensive multi-industry skills to provide strategic advice on product management, operational excellence, and strategic projects. Marcela acts as the liaison between all corporate stakeholders, ensuring organizational alignment and leading crisis management.