Leadership and Staff


Our leadership team has more  than 100 years combined experience in cellular analysis, particle analysis, flow cytometry, and instrument development. In addition, our technical experience in cellular and particle analysis instrumentation evolved from active research by Graves (25 years), O'Rourke (20 years), Woods (17 years), and Freyer (40 years) in the field of flow cytometry and assay development.

John O’Rourke

CEO & President

John has over 20 years’ experience in the research, testing and development of tools and therapeutics for the oncology space. In his role as Director of Assay Development, John is leading a team of scientist in developing novel application and reagents for BennuBio’s Velocyt technology. Prior to joining BennuBio, John was the Head of Product Development for Intellicyt/Sartorius leading the R&D team in the commercialization of reagent, software and hardware solutions for the high throughput flow cytometry community.  

Travis Woods

Chief Operating Officer

As head of BennuBio’s engineering team, Travis has over 18 years’ experience with acoustics, optics, cell biology and general flow cytometry. Before coming to BennuBio, Travis ran the flow cytometry user facility at Los Alamos National Laboratory as part of the NIH National Flow Cytometry Resource, and later transitioned to the University of New Mexico’s Shared Resource.  

Stephen McKernan

Chief Financial Officer

Steve is the former CEO of the UNM Health Sciences Center. He has extensive experience in business operations, financial modeling, and provides leadership in all aspects of business operations.  

Steven Graves

Director of Technology

Steve’s research programs at the Los Alamos National Laboratory were influential in the development of the first acoustic focusing flow cytometer and his more recent programs at the University of New Mexico are the basis of BennuBio’s technology. As a recognized world leader in the field Steve continues to be actively involved in BennuBio’s daily R&D activities and to provide vision and leadership to the company.


Andrew Shreve, PhD

Research and Development Consultant

Andy has 30+ years of experience in developing optical-based measurement systems for spectroscopy, imaging and sensing, most recently as a Professor Chemical and Biological Engineering at the University of New Mexico where he worked closely with Dr. Graves on development of parallel acoustic flow cytometry. Prior to his work at UNM, he was a scientist at Los Alamos National Laboratory.  

August Swanson


August has been a software developer and entrepreneur for 30+ years. He graduated from the University of New Mexico with a Bachelor of Science in Computer Engineering. August has extensive experience testing mainframe computers and developing data acquisition systems.  

Benjamin Brown

Benjamin Brown


Benjamin has been a tradesman and designer for over fifteen years and has extensive experience transforming ideas into realities. Being a part of BennuBio since near its beginning, he is dedicated to advancing the technology and providing the very best in design and fabrication to the Company.  

Bruce Edwards

Bruce Edwards, PhD


Bruce is an inventor and developer of novel high throughput flow cytometry technologies that support biopharmaceutical research and drug discovery programs at the University of New Mexico Center for Molecular Discovery. He co-founded IntelliCyt which was acquired by Sartorius, a multinational biopharmaceutical company. His more than 30-year experience in cell biology, immunology and cancer research is also supports biological application development.

Danielle Sedillo

Danielle Sedillo


Danielle has associate’s degrees in accounting, business administration and applied science. An interest in biology and anatomy lead to a career as a surgical technologist with a specialization in neurological surgery.

James Freyer

Scientific Consultant

Dr. Freyer is a Founder of BennuBio, Inc. James is the former director of the NIH National Flow Cytometry Resource and leader of the flow cytometry team at LANL, with over 45 years of experience in flow cytometry instrumentation development and application.  Jim’s 45 years of experience in the field of multicellular spheroids are critical to our spheroid screening and large particle analysis programs.