Altasciences Executive and Leadership Team

September, 2026

Leadership Overview

Altasciences has 7 executives leading key functions including strategy, operations, revenue, medical oversight, administration, and technology.

Focused on accelerating drug development, Altasciences delivers comprehensive preclinical and clinical research solutions. This organization empowers pharmaceutical partners through integrated services that streamline the path from discovery to market.

Leadership Roles at Altasciences

  • Chief Executive Officer - Marie-Hélène Raigneau
  • Co-Chief Operating Officer - Robert Sabelli
  • Co-Chief Operating Officer - Stephen James Mason
  • Executive Vice President & Chief Revenue Officer, Services - Nicole Maciolek
  • Chief Medical Officer - Gaetano Morelli
  • Chief Administrative Officer - Catherine Konidas
  • Senior Director, Information Technology & Strategic Planning - Joel Woods
  • Marie-Hélène Raigneau - Chief Executive Officer

    Marie-Hélène Raigneau, the Chief Executive Officer at Altasciences, directs the overarching corporate strategy for this contract research organization. By aligning preclinical and clinical service offerings, the Chief Executive Officer ensures seamless execution across all research phases. Marie-Hélène Raigneau maintains a sharp focus on expanding the global footprint of the company, particularly within North American markets. This leadership role involves constant collaboration with the Board to drive long-term growth and operational excellence. Through the optimization of bioanalytical and manufacturing workflows, the Chief Executive Officer secures a competitive advantage in the drug development landscape. Strategic decision-making remains central to the mission of delivering high-quality data to pharmaceutical clients. By fostering a culture of innovation, the Chief Executive Officer positions the firm as a leader in the CRO industry, consistently meeting complex client requirements while maintaining rigorous regulatory compliance standards.
    Marie-Hélène Raigneau

    Robert Sabelli - Co-Chief Operating Officer

    Robert Sabelli, the Co-Chief Operating Officer at Altasciences, manages the internal scaling and infrastructure required for high-volume clinical research operations. Overseeing the integration of manufacturing and analytical services, the Co-Chief Operating Officer ensures that laboratory processes meet stringent quality benchmarks. Robert Sabelli drives efficiency across the organization by implementing standardized protocols that support rapid project turnaround times. This leadership role requires close coordination with the executive team to align operational capacity with client demand. By focusing on the technical infrastructure of the company, the Co-Chief Operating Officer optimizes resource allocation and facility utilization. Sabelli maintains a commitment to operational excellence, ensuring that every clinical trial phase benefits from robust support systems. Through the continuous improvement of internal workflows, the Co-Chief Operating Officer strengthens the market position of the firm, enabling the successful delivery of complex research programs for global pharmaceutical partners.
    Robert Sabelli

    Stephen James Mason - Co-Chief Operating Officer

    Stephen James Mason, the Co-Chief Operating Officer at Altasciences, directs the supply chain logistics and site-level operational performance for the company. Managing the complex requirements of preclinical research facilities, the Co-Chief Operating Officer ensures that all site operations adhere to safety and regulatory standards. Stephen James Mason oversees the deployment of specialized equipment and personnel across various research sites to maximize throughput. This leadership role involves managing the physical footprint of the organization to support diverse clinical service offerings. By streamlining site-level logistics, the Co-Chief Operating Officer enhances the overall agility of the research process. Mason focuses on maintaining high operational standards, ensuring that every facility functions as a cohesive unit within the broader corporate framework. Through the strategic management of site resources, the Co-Chief Operating Officer supports the mission of providing reliable, high-quality data to clients, ultimately driving the success of drug development programs.
    Stephen James Mason

    Nicole Maciolek - Executive Vice President & Chief Revenue Officer, Services

    Nicole Maciolek, the Executive Vice President & Chief Revenue Officer, Services at Altasciences, leads the commercial strategy and client acquisition efforts for the organization. Driving revenue growth through the expansion of clinical and bioanalytical service contracts, the Executive Vice President & Chief Revenue Officer, Services ensures that the company meets its financial targets. Nicole Maciolek manages relationships with key pharmaceutical partners, tailoring service packages to address specific drug development needs. This leadership role involves analyzing market trends to identify new opportunities for service integration. By aligning sales initiatives with the core capabilities of the firm, the Executive Vice President & Chief Revenue Officer, Services secures long-term partnerships. Maciolek oversees the commercial team, fostering a client-centric approach that emphasizes the value of integrated CRO services. Through strategic market positioning, the Executive Vice President & Chief Revenue Officer, Services directly impacts the financial stability and growth trajectory of the company.
    Nicole Maciolek

    Gaetano Morelli - Chief Medical Officer

    Gaetano Morelli, the Chief Medical Officer at Altasciences, provides clinical oversight and medical governance for all research activities. Ensuring that every clinical trial adheres to the highest ethical and safety standards, the Chief Medical Officer guides the medical strategy for the company. Gaetano Morelli collaborates with regulatory bodies to ensure compliance throughout the drug development lifecycle. This leadership role involves supervising medical staff and reviewing clinical data to maintain the integrity of research outcomes. By providing expert medical guidance, the Chief Medical Officer supports the design and execution of complex clinical studies. Morelli maintains a focus on patient safety and data accuracy, which are critical to the reputation of the firm. Through the application of deep medical expertise, the Chief Medical Officer ensures that the research services provided meet the rigorous demands of the pharmaceutical industry, ultimately facilitating the successful advancement of new therapeutic candidates.

    Catherine Konidas - Chief Administrative Officer

    Catherine Konidas, the Chief Administrative Officer at Altasciences, manages the corporate functions that support the daily operations of the organization. Overseeing human resources, legal compliance, and administrative infrastructure, the Chief Administrative Officer ensures that the company maintains a productive work environment. Catherine Konidas directs the implementation of corporate policies that align with the mission of the firm. This leadership role involves coordinating across departments to streamline internal processes and improve organizational efficiency. By managing the administrative backbone of the company, the Chief Administrative Officer enables other leaders to focus on their core research and commercial objectives. Konidas maintains a focus on talent development and organizational culture, ensuring that the workforce remains aligned with the strategic goals of the business. Through the effective management of administrative resources, the Chief Administrative Officer supports the overall stability and growth of the organization in the competitive CRO market.
    Catherine Konidas

    Joel Woods - Senior Director, Information Technology & Strategic Planning

    Joel Woods, the Senior Director, Information Technology & Strategic Planning at Altasciences, architects the digital infrastructure and data management systems essential for research operations. Overseeing the integration of advanced IT solutions, the Senior Director, Information Technology & Strategic Planning ensures that data security and accessibility remain at the forefront of the company. Joel Woods leads the strategic planning process, aligning technology investments with the long-term goals of the organization. This leadership role involves managing the digital transformation of clinical research workflows to improve efficiency and data integrity. By implementing robust IT frameworks, the Senior Director, Information Technology & Strategic Planning supports the complex analytical needs of the firm. Woods focuses on leveraging technology to provide a competitive edge in the CRO industry. Through the strategic alignment of IT initiatives with business objectives, the Senior Director, Information Technology & Strategic Planning ensures that the company remains at the cutting edge of research technology.

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    Frequently Asked Questions Regarding Altasciences Top Executives and Leadership Team

    Who leads Altasciences?
    Altasciences is led by Marie-Hélène Raigneau (Chief Executive Officer), along with executives such as Robert Sabelli (Co-Chief Operating Officer) and Stephen James Mason (Co-Chief Operating Officer).
    Who is part of Altasciences’s executive team?
    The executive team of Altasciences includes leaders such as Marie-Hélène Raigneau (Chief Executive Officer), Robert Sabelli (Co-Chief Operating Officer), Stephen James Mason (Co-Chief Operating Officer) and other senior executives.
    How many executives does Altasciences have?
    Altasciences has 7 executives leading key business areas.
    What roles are included in Altasciences’s leadership team?
    The leadership team of Altasciences includes roles such as Chief Executive Officer, Co-Chief Operating Officer, Co-Chief Operating Officer, Executive Vice President & Chief Revenue Officer, Services, Chief Medical Officer.