Focus on
What Matters

Providing world-class in-vivo services that empower you to remain science focused.

Your trusted partner in research & development.

Focus on
What Matters.

Providing world-class in-vivo services that empower you to remain science focused.

About Us

Excelsior Labs is a Madison, WI based CRO providing custom research models to discerning biotech and pharmaceutical sponsors who require a high degree of expertise and quality. Our team thrives on close collaboration with sponsors, and comes with several decades of experience in both academic and industry settings.

Excelsior Labs state-of-the-art vivarium is purpose built to meet the needs of modern drug developers. We have experience with a variety of models including syngeneic, PDX, and transgenic. We support multiple study types, such as efficacy, PK/PD, and pilot toxicology. Our laboratory allows research in immunocompromised animals.

Our focus on animal care and quality staff yields accurate, repeatable data for your study needs.