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Daniel Grosu
President & CEO at PetDx
Daniel S. Grosu is a prominent figure in the field of veterinary diagnostics, serving as the Founder, President, and CEO of PetDx, a San Diego-based company specializing in liquid biopsy technology for dogs. He established PetDx in 2019, motivated by personal experiences with cancer in his family and his pet dog, Poppy, who passed away from pancreatic cancer at a young age. This experience inspired him to leverage his extensive background in genomics and healthcare to improve cancer detection in pets.15
Educational Background and Professional Experience
Grosu holds an MD with Distinction in Research from Saint Louis University and an MBA from the University of Oxford. His career spans various roles in the human diagnostics sector, including significant positions at Illumina and Sequenom. At Illumina, he was the first Chief Medical Officer, where he played a crucial role in developing next-generation sequencing technologies. He later served as CMO at Sequenom, focusing on non-invasive prenatal testing and liquid biopsy applications for cancer.15
Contributions to PetDx
Under Grosu's leadership, PetDx has developed its flagship product, OncoK9, a multi-cancer early detection test that can identify up to 30 types of canine cancer through a simple blood draw. The company has raised substantial funding—over $72 million—supporting its mission to enhance veterinary care through advanced genomic analysis.123 The OncoK9 test represents a significant advancement in veterinary diagnostics, providing veterinarians with tools to detect cancer earlier and more accurately than traditional methods.26
Current Role
As of January 2023, Grosu transitioned from his role as CEO to serve as Chairman of the Board, while Alejandro Bernal took over as CEO. Grosu continues to influence the strategic direction of PetDx and remains actively involved in biotechnology investments.45
In addition to his professional pursuits, Grosu is known for his passion for scuba diving and exploring marine environments globally.5

