Leadership Overview
Parexel has 9 executives leading key functions including clinical operations, technology security, medical strategy, data management, growth initiatives, administrative governance, operational excellence, marketing services, and team leadership.
Focused on accelerating biopharmaceutical development, Parexel delivers comprehensive clinical research, consulting, and informatics solutions to improve patient health outcomes worldwide.
Focused on accelerating biopharmaceutical development, Parexel delivers comprehensive clinical research, consulting, and informatics solutions to improve patient health outcomes worldwide.
Leadership Roles at Parexel
Georgina Singleton - Chief Operating Officer
Georgina Singleton, the Chief Operating Officer at Parexel, directs the execution of complex clinical research services across global markets. Overseeing the integration of trial management and biostatistical analysis, Singleton ensures that the organization maintains high standards of efficiency in drug development. This leadership role involves coordinating cross-functional teams to optimize patient recruitment and site services, which directly impacts the speed of bringing medical innovations to market. By streamlining internal processes, Georgina Singleton supports the broader mission of providing high-quality outsourcing services to biotechnology and pharmaceutical clients. The Chief Operating Officer also monitors performance metrics to ensure that clinical supply and drug logistics remain robust. Through rigorous oversight of operational workflows, Singleton drives the company toward achieving superior results in observational studies and post-marketing surveillance, ultimately strengthening the market position of the firm within the competitive biopharmaceutical landscape.
Debra Tatton - Global President, Clinical & Data Operations
Debra Tatton, the Global President, Clinical & Data Operations at Parexel, manages the end-to-end delivery of clinical research services and data management functions. Overseeing large-scale clinical trials and biostatistical analysis, Tatton ensures that operational teams deliver high-quality data to pharmaceutical and medical device clients. This leadership role involves scaling clinical supply and drug logistics to meet the demands of international research projects. By optimizing data management workflows, Debra Tatton enhances the accuracy and reliability of clinical research outcomes. The Global President, Clinical & Data Operations also coordinates with site services to ensure that patient recruitment targets are met across diverse geographic regions. Through strategic management of clinical operations, Tatton drives efficiency and consistency in trial execution. By fostering a culture of operational excellence, the Global President, Clinical & Data Operations ensures that the company remains a trusted partner for complex, multi-phase clinical studies, ultimately supporting the advancement of global health.
Amy Kissam-Sands - President, Operational Excellence, Delivery & Innovation
Amy Kissam-Sands, the President, Operational Excellence, Delivery & Innovation at Parexel, leads the transformation of service delivery models to enhance efficiency and quality. Overseeing the implementation of innovative processes, Kissam-Sands ensures that clinical research and consulting services are delivered with maximum precision. This leadership role involves fostering a culture of continuous improvement, which directly impacts the firm's ability to meet complex client requirements. By integrating advanced technology solutions into operational workflows, Amy Kissam-Sands drives the adoption of best practices across all segments of the business. The President, Operational Excellence, Delivery & Innovation also collaborates with cross-functional teams to refine trial management systems and data capture methods. Through a focus on delivery excellence, Kissam-Sands ensures that the company remains agile and responsive to the evolving needs of the biopharmaceutical industry. By championing innovation, the President, Operational Excellence, Delivery & Innovation supports the firm's commitment to providing superior, high-value services to global clients.
Andrew Smith - President, Medical Marketing Services
Andrew Smith, the President, Medical Marketing Services at Parexel, directs the development and execution of targeted communications and commercialization strategies for biopharmaceutical products. Overseeing market and product development, Smith ensures that clients effectively communicate the value of their medical innovations to healthcare providers and patients. This leadership role involves providing strategic advice on product launch and commercialization, which is essential for successful market entry. By leveraging medical expertise, Andrew Smith helps clients navigate the complexities of product pricing and reimbursement. The President, Medical Marketing Services also manages the delivery of medical affairs services that support the lifecycle of medical devices and drugs. Through a focus on strategic compliance and market development, Smith ensures that all marketing initiatives are both impactful and regulatory-compliant. By driving the commercial success of client products, the President, Medical Marketing Services plays a vital role in the firm's mission to support the entire drug development journey.
Nelly Nauman - Chief Technology Officer & Chief Information Security Officer
Nelly Nauman, the Chief Technology Officer & Chief Information Security Officer at Parexel, architects the digital infrastructure supporting clinical trial management and data security. Managing the deployment of electronic data capture systems and medical imaging platforms, Nauman ensures that all information technology solutions meet stringent regulatory requirements. This dual-function role involves protecting sensitive patient data while simultaneously advancing the firm's informatics capabilities, such as randomization and trial supply management. By implementing secure, web-based portals and integrated systems, Nelly Nauman enables seamless collaboration between global research teams and clinical sites. The Chief Technology Officer & Chief Information Security Officer also oversees the development of patient diary applications and electronic patient-reported outcomes, which are critical for modern clinical research. Through constant innovation in information technology, Nauman maintains the integrity of the company's digital assets, ensuring that all technological services remain at the forefront of the biopharmaceutical industry.
Charlotte Moser - Chief Medical Officer
Charlotte Moser, the Chief Medical Officer at Parexel, provides clinical leadership and medical expertise to support complex drug development programs. Overseeing medical affairs and pharmacovigilance, Moser ensures that all clinical trials adhere to the highest safety and ethical standards. This leadership role involves advising on epidemiology and health economics, which helps clients navigate the intricacies of product registration and commercialization. By guiding medical strategy, Charlotte Moser directly influences the success of clinical pharmacology and observational studies. The Chief Medical Officer also collaborates with regulatory affairs teams to address client issues related to product development and market access. Through deep scientific insight, Moser ensures that the company's medical communications and consulting services remain evidence-based and highly effective. By maintaining a focus on patient safety and therapeutic efficacy, the Chief Medical Officer supports the firm's commitment to delivering life-changing medical solutions to the global healthcare market.
Michael Crowley - Chief Administrative Officer, General Counsel & Secretary
Michael Crowley, the Chief Administrative Officer, General Counsel & Secretary at Parexel, manages the legal, administrative, and corporate governance functions of the organization. Overseeing regulatory compliance and risk management, Crowley ensures that all business activities align with international legal standards. This leadership role involves providing strategic counsel on product pricing, reimbursement, and commercialization agreements. By maintaining robust corporate governance, Michael Crowley protects the firm's interests while supporting its mission to provide high-quality outsourcing services. The Chief Administrative Officer, General Counsel & Secretary also facilitates communication with the Board and manages internal administrative policies that govern global operations. Through meticulous legal oversight, Crowley mitigates potential risks associated with clinical research and consulting services. By ensuring that the company operates within a sound legal framework, the Chief Administrative Officer, General Counsel & Secretary enables the organization to focus on its core objective of advancing biopharmaceutical development and improving patient outcomes.

Peyton Howell - Chief Operating & Growth Officer
Peyton Howell, the Chief Operating & Growth Officer at Parexel, drives the strategic expansion of the company's service portfolio and market reach. Overseeing business development and commercialization strategies, Howell identifies new opportunities to provide consulting and clinical research services to biotechnology firms. This leadership role involves aligning operational capabilities with long-term growth objectives to ensure sustainable revenue generation. By spearheading initiatives that enhance the firm's competitive advantage, Peyton Howell ensures that the organization remains a leader in the biopharmaceutical outsourcing sector. The Chief Operating & Growth Officer also works closely with other C-suite leaders to integrate commercialization services with clinical research offerings. Through a focus on market penetration and client relationship management, Howell secures the company's position as a preferred partner for product launch and development. By executing growth-oriented strategies, the Chief Operating & Growth Officer directly contributes to the firm's ability to scale its impact on global medical innovation.

Francois Benard - Team Captain
Francois Benard, the Team Captain at Parexel, coordinates specialized project teams to ensure the seamless execution of clinical research and consulting engagements. Overseeing the alignment of internal resources, Benard ensures that every project meets the specific needs of biotechnology and pharmaceutical clients. This leadership role involves facilitating communication between different departments, such as clinical operations and informatics, to ensure project milestones are achieved on time. By managing team dynamics and operational workflows, Francois Benard drives the successful delivery of complex research studies. The Team Captain also monitors project performance and addresses any challenges that arise during the clinical trial process. Through proactive leadership, Benard ensures that all team members remain focused on the firm's commitment to quality and patient health. By fostering collaboration and accountability, the Team Captain supports the organization's ability to provide consistent, high-quality services across all segments of the business, ultimately contributing to the firm's overall success.
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