Carol Meschter, DVM, PhD, DACVP
Chief Executive Officer

Dr. Carol Meschter is one of the original founders of Comparative Biosciences. Previously, she was in the Investigative Toxicology Group at Hoffmann-LaRoche in Nutley, N.J., and was the director of the Research Animal Facility at the American Health Foundation in Valhalla, N.Y. As a board-certified veterinary pathologist, Dr. Meschter brings 20 years of experience in the pharmaceutical industry, primarily in toxicology, pathology, preclinical development, discovery support and preclinical pharmacology. Knowledgeable about early-phase drug development from discovery to new drug application, she has technical expertise in pathology, pharmacology, efficacy modeling and pharmacokinetics. Dr. Meschter is a scientific editorial reviewer for Toxicologic Pathology, Veterinary Pathology, AVMA Journal, AJVR, J Applied Immunology and has over 100 publications.

James Christenson, PhD
Senior Vice President

Dr. James Christenson, senior vice president, previously was director of antibacterial research and international project director at Hoffmann-LaRoche in Nutley, N.J., and executive director of project management at Microcide Pharmaceuticals, Inc., in Mountain View, Calif. Dr. Christenson has over 30 years of experience in the pharmaceutical and contract research industries, primarily in anti-infective drug discovery and development including all phases of drug development from discovery to post-marketing. He has extensive technical expertise in pharmacokinetics, toxicology, biochemistry, microbiology, assay development and animal models. He has over 75 publications and patents, and is a scientific editorial reviewer for peer-reviewed publications that include Antimicrobial Agents and Chemotherapy and Clinical and Diagnostic Laboratory Immunology.




Jonathan A. Geller, MS
Business Development Manager

(Venenum / NEDP / PharmOptima / Invivotek / Nexus / Comparative Biosciences)
Members of Genesis Drug Discovery & Development (GD3)
A Genesis Biotechnology Group Company

Jonathan is an Experienced Business Development Manager with a strong technical background in molecular biology/biochemistry. He has called on academic, pharmaceutical, biotechnological, & applied market customers creating collaborative solutions that include consumables, capital equipment & contract services. He has gained his experience through education (MS in Molecular Biology), research (~7 years in laboratories), & professional work (~15 years in various sales roles, including 4+ in CRO/CMO).

“After receiving my MS in molecular biology from NYU, I spent about 7 years in research focusing primarily on prostate cancer.  Since then, in the last 15-plus years I have been in sales and business development, with the last 5 focusing on services.”