About PSC Biotech®

Who we are

John Clapham

President & CEO

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John has more than 29 years of experience working hands-on in the life science industry. Prior to founding PSC Biotech Corporation, he worked for the United States Department of Defense (Naval Ordnance Station), CPI Plants Inc., Lockwood Greene Engineers, Johnson and Johnson and Fluor Daniel and has a bachelor’s of science in chemical engineering from the University of Rhode Island.

John is a former Past President of the International Society of Pharmaceutical Engineers (ISPE) Los Angeles Chapter. He is also a member of the Parenteral Drug Association (PDA), American Society of Quality (ASQ) and Regulatory Affairs Professionals (RAPS). He is passionate about value creation for his clients in the field of life science.

Heather Kelly

President, PSC Europe

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Heather Kelly comes to PSC Biotech Corporation as an experienced senior director across engineering sectors with over 20 years dealing with complex technical and legal issues combined with analytical and technical knowledge, fiscal responsibilities, conflict resolution, software, CAPA, non-conformance regulatory compliance, manufacturing, six sigma and global business startups.

As a leader in engineering and biochemistry fields, project management, and global organization experience Heather spearheads PSC’s efforts in Europe. She holds certifications such as GMS CRP ERC visa and immigration expert, audit quality appraisal and delivery, project management professional, advanced sciences, among others. With Heather’s background, we expect to continue to prosper in Europe and beyond.

Chunhong Zhu

Managing Director, Asia

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Zhu Chunhong has more than 23 years of experience in the chemical engineering, pharmaceutical and biotechnology industries. She specializes in qualification, validation and cGMP compliance services to pharmaceutical and biotechnology plants, which includes laboratory, manufacturing facility, equipment and utilities. Her experience in validation and cGMP compliance ensures her team is directed by expert management. She has successfully supported four sterile injectable Chinese domestic manufacturers achieve marketing authorization for their sterile injectable cephalosporin products and led two green field commissioning and qualification projects in Singapore for sterile facility and biotechnology facility. We only expect her skillset to spearhead PSC Biotech Corporation’s growth in Asia.

Davy Mao


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Davy Mao comes to PSC Biotech Corporation with over 20 years of experience in biotechnology, pharmaceutical processes, engineering, information technology, business development, portfolio management and operational management. Davy has played an instrumental role in PSC Biotech Corporation’s growth and success. He is a dependable leader, with proven track record, who leads by example. He enjoys mentoring and building successful individuals and teams. Davy holds a bachelor of science degree in biomedical and biochemical engineering from the University of Southern California.

Gilbert Wong


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Dr. Charles Heldebrant


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Justin Cantor

Chief Strategy Officer

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Brandon Clough

Chief Revenue Officer

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Gilbert Gomez

Chief Technology Officer

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