Background and History

StageBio is a leading provider of GLP-compliant necropsy, histology, pathology, and specimen archiving services for the biopharmaceutical, medical device, academic, and contract research industries.

We formed through the merger of renowned contract research organizations—Histo-Scientific Research Laboratories (HSRL), HSRL Archives, Vet Path Services, Inc. (VPS), VPS Archives, Tox Path Specialists (TPS), Alizée Pathology, and TPL Path Labs of Germany. By integrating these scientific ventures, we are able to offer beginning-to-end histopathology services to meet all of our clients’ needs under one roof.

Team_Header_1440x625-1 Scientist-looking-through-a-microscope-1

Our Commitment to Smart Science

Our offerings include necropsy oversight, clinical pathology analysis, efficacy determination for new compounds and devices, toxicological evaluation of products subject to regulatory approval, medical device pathology, immunohistochemistry, and neuropathology.

The company operates four GLP laboratories and three GLP specimen archiving facilities in the U.S., along with one GLP laboratory in Europe.

The company has a team of 30+ board-certified veterinary pathologists and more than 100 laboratory staff supporting our unified commitment to quality, scientific integrity, and client satisfaction.

Team-of-researchers Serious science students working in a laboratory

StageBio Statistics

30 Pathologists
1000 + Clients
9 Locations
250,000 Cubic feet in archiving space
50,000 + Slides produced monthly

Company Values

Our legacy as industry leaders started in 1999. We have positioned ourselves to be agents of progress, dedicated to the improvement of research technology and medical advancement.
We have hosted several successful FDA audits across multiple sites. We believe in evaluating and assessing our performance standards alongside regulators and clients in order to cultivate excellence.
Big-Picture Thinking
We have partnered with international scientific leaders to develop FDA-approved therapies and medical devices because we believe in improving the quality of life of our friends, families, and neighbors.

Meet Our Team

Serge Rousselle, DVM, DACVP


Sarah Cramer, DVM, PhD, DACVP

Director, Neuropathology

Katherine A.B. Knostman, DVM, PhD, DACVP

Senior Director, General Toxicologic Pathology

Elizabeth Hutto, DVM, PhD, DACVP

Director of Investigative Pathology

Mike Betley, DVM, PhD, DACVP


Matthew Buccellato, DVM, PhD, DACVP

Senior Pathologist

Mark Butt, DVM, DACVP

Senior Pathologist

Amy Brix , DVM, PhD, DACVP

Senior Pathologist

Laura Elcock, DVM, PhD, DACVP

Senior Pathologist

Cindy Farman, DVM, PhD, DACVP

Senior Pathologist

Molly Friedemann, DVM, MS, DACVP


David Garlick, DVM, DACVP

Senior Pathologist

Joy Gary, DVM, PhD, DACVP

Senior Pathologist

Jessica Hoane, DVM, MTOX, DACVP, DABT

Senior Pathologist

Crystal Johnson, DVM, DACVP

Senior Pathologist

Juliana Lee, BVSc, MS, DACVP

Senior Pathologist

Lisa Mangus, DVM, PhD, DACVP

Senior Pathologist

Sherry Morgan, DVM, PhD, DACVP, DABT, DABVT

Senior Pathologist

April Paulman, DVM, PhD, DACVP

Senior Pathologist

Jaime Paulin, DVM, MS, DACVP

Senior Pathologist

Lynette Phillips, DVM, PhD, DACVP

Senior Pathologist

Rachel Reams, DVM, MS, PhD, DACVP

Senior Pathologist

Brett Saladino, DVM, DACVP

Senior Pathologist

Stephanie Shrader, DVM, PhD, DACVP

Senior Pathologist

Jamie K. Young, DVM, PhD, DACVP

Senior Pathologist

Tom Galati


Damon Lusk


Sam Jeffrey

Chief of Staff

Carrie Harris

Vice President, Pathology Services

Patty Schwartz

Vice President, Business Operations

Kathy Bailey

Vice President, Specialty Operations

Charles Coffman

Vice President of Corporate Development

Chris Johnson

Manager, Commercial Contracts

Charles Brehm

Director, Information Technology

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