Our Team
Mark Reid
Founder and Managing Director
Mark Reid established Graythan Regulatory Services in 2017. Over 25 years of experience in the pharmaceutical industry having worked in NATA-certified laboratories as a virologist, clinical investigator, and regulatory consultant in Europe and Australia advising clients in preclinical and clinical planning for their NCEs and biologicals.
Extensive experience in vaccines, gene therapy, and genetically modified organisms was supported by a network of industry experts and has been utilised to form global consulting arms for various CROs.
Barbara Kienast
Head of Clinical Operations and Regulatory Affairs
Barbara has over 25 years of international experience, living in 6 countries and speaking 3 languages. Barbara is part of the GRS IBC and has managed multiple GMO studies including CTA studies. Barbara has worked across all phases and a range of therapeutic areas including cardiology, ear disorders, endocrinology & vaccine, genetic disorders, vaccine, neurology, respiratory, transplant, oncology, infectious disease, and musculoskeletal, and is additionally experienced in Medical Writing. Barbara is a well-organised and cooperative individual who works efficiently. Barbara is a Chemical Engineer by education as well as a studies project manager and holds a PMP.
William Browning-Zonneveld
Regulatory Affairs Manager
Experienced in strategic planning and drug development planning for multiple biotechnology and pharmaceutical companies.
A global network of industry and medical professionals in key markets for market access.
William has therapeutic working knowledge in areas of infectious diseases, gene, and cell therapy, metabolic diseases, cardiovascular, microbiomial, neurological, regenerative medicines, and vaccines.
Choose Graythan to ensure the success of your drug development program
At Graythan, we strive to add value to our client’s drug development programs through expert advice on regulatory and commercialisation pathways and by facilitation of regulatory processes.
Talk to us today about how we can make a difference with your drug development program, and make it a success.
Extensive Knowledge
Our many talented people have up-to-date in-depth knowledge of the life sciences industry
Our Journey
We work closely with you to guarantee our services are tailored to your company’s specific needs
Proven Results
We have a strong track record of success, coupled with high client retention rates and quality assurance
Personalised Support
Each client has their own GRS Consultant who ensures your needs are met to ensure product success