Altasciences Executive and Leadership Team

August, 2026

Leadership Overview

Altasciences has 8 executives leading key functions including strategy, scientific research, clinical operations, revenue growth, medical oversight, administration, and technology infrastructure.

Focused on accelerating drug development, Altasciences delivers comprehensive preclinical and clinical solutions to global pharmaceutical partners through a commitment to efficiency and scientific excellence.

Leadership Roles at Altasciences

  • Chief Executive Officer - Marie-Hélène Raigneau
  • Co-Chief Operating Officer - Robert Sabelli
  • Co-Chief Operating Officer - Stephen James Mason
  • President and CSO - Charles Spainhour
  • 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. Raigneau architects long-term growth initiatives while overseeing the integration of preclinical, clinical, and manufacturing services. By aligning internal resources with the evolving needs of the global pharmaceutical market, the Chief Executive Officer ensures that Altasciences maintains a competitive edge in drug development. Raigneau fosters collaboration across all departments to streamline complex research workflows. This leadership role involves constant engagement with the Board to refine operational goals and expand market reach across North America and beyond. Through rigorous oversight of service delivery, Marie-Hélène Raigneau drives the company toward achieving superior outcomes for clients. Raigneau maintains a focus on innovation, ensuring that the organization remains at the forefront of the CRO industry by prioritizing quality and speed in every project phase.
    Marie-Hélène Raigneau

    Robert Sabelli - Co-Chief Operating Officer

    Robert Sabelli, the Co-Chief Operating Officer at Altasciences, manages the internal scaling and operational efficiency of the clinical service divisions. Sabelli directs the infrastructure required to support large-scale clinical trials, ensuring that resource allocation aligns with project timelines. By optimizing the operational framework, the Co-Chief Operating Officer enhances the speed and reliability of clinical service delivery. Robert Sabelli coordinates with cross-functional teams to refine processes, reducing bottlenecks in the drug development pipeline. This leadership role involves managing the logistical complexities of clinical research, ensuring that facilities operate at peak capacity. Sabelli drives initiatives to improve operational throughput, directly impacting the ability of the company to meet client demands. Through meticulous planning and execution, Sabelli ensures that clinical operations remain agile and responsive to the dynamic needs of the pharmaceutical industry, ultimately supporting the successful advancement of client drug candidates through critical development milestones.
    Robert Sabelli

    Stephen James Mason - Co-Chief Operating Officer

    Stephen James Mason, the Co-Chief Operating Officer at Altasciences, oversees the supply chain logistics and manufacturing service operations. Mason directs the integration of manufacturing workflows with analytical services to ensure seamless project transitions. By focusing on the operational stability of the manufacturing division, the Co-Chief Operating Officer guarantees that production schedules meet rigorous quality standards. Stephen James Mason manages the procurement and facility management teams, ensuring that the physical infrastructure supports the complex requirements of contract research. This role involves coordinating with external vendors and internal stakeholders to maintain a robust supply chain. Mason drives efficiency improvements in manufacturing processes, reducing lead times for critical research materials. Through strategic oversight, Stephen James Mason ensures that the operational foundation of the company remains strong, allowing for consistent delivery of high-quality manufacturing and analytical services to clients across the global pharmaceutical landscape.
    Stephen James Mason

    Charles Spainhour - President and CSO

    Charles Spainhour, the President and CSO at Altasciences, leads the scientific vision and research integrity of the organization. Spainhour directs the preclinical and analytical service divisions, ensuring that every study meets the highest regulatory standards. By bridging the gap between complex scientific requirements and client objectives, the President and CSO optimizes the research lifecycle. Charles Spainhour manages the technical teams responsible for bioanalytical and manufacturing services, driving excellence in data accuracy and project execution. This role requires deep engagement with scientific advisory boards to validate methodologies and implement cutting-edge research techniques. Spainhour oversees the expansion of scientific capabilities to support diverse therapeutic areas, ensuring that the company provides robust data for drug development programs. Through strategic leadership, Spainhour secures the scientific reputation of the firm, enabling consistent delivery of high-quality research results for pharmaceutical partners operating in competitive global markets.

    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 revenue generation efforts. Maciolek directs the sales and business development teams, ensuring that the service offerings align with the specific needs of pharmaceutical clients. By identifying new market opportunities, the Executive Vice President & Chief Revenue Officer, Services expands the client base and strengthens long-term partnerships. Nicole Maciolek manages the commercial pipeline, ensuring that revenue targets are met through effective client engagement and service positioning. This role involves collaborating with the executive team to refine pricing strategies and service packages. Maciolek drives the growth of the company by demonstrating the value of integrated CRO services to potential partners. Through strategic market analysis, Maciolek ensures that the organization remains competitive, securing consistent revenue streams while supporting the overall mission of accelerating drug development for clients worldwide.

    Gaetano Morelli - Chief Medical Officer

    Gaetano Morelli, the Chief Medical Officer at Altasciences, provides medical oversight for all clinical research activities. Morelli directs the medical monitoring teams, ensuring that patient safety and data integrity remain the top priorities during clinical trials. By applying clinical expertise to study design and execution, the Chief Medical Officer enhances the quality of research outcomes. Gaetano Morelli manages the medical affairs department, providing guidance on regulatory compliance and ethical standards. This role involves close collaboration with clinical operations to address medical challenges that arise during the drug development process. Morelli drives the development of medical protocols that meet international standards, ensuring that the company delivers reliable data to pharmaceutical sponsors. Through continuous monitoring and expert analysis, Morelli ensures that all clinical services adhere to the highest medical benchmarks, ultimately supporting the successful progression of drug candidates through the clinical trial phases.

    Catherine Konidas - Chief Administrative Officer

    Catherine Konidas, the Chief Administrative Officer at Altasciences, manages the corporate administrative functions and organizational support systems. Konidas directs the human resources, legal, and facilities departments, ensuring that the internal environment supports the company's strategic goals. By streamlining administrative processes, the Chief Administrative Officer improves organizational efficiency and employee productivity. Catherine Konidas oversees the implementation of corporate policies, ensuring that the company maintains compliance with all regulatory requirements. This role involves coordinating with other C-suite leaders to align administrative support with the needs of the research and clinical divisions. Konidas drives initiatives to foster a culture of excellence and operational discipline. Through effective management of corporate resources, Konidas ensures that the organization remains well-positioned to handle the complexities of a growing contract research business, providing the necessary foundation for the company to achieve its long-term objectives in the pharmaceutical services sector.
    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 long-term technology roadmap. Woods directs the IT department, ensuring that data security and system reliability support the company's research and clinical operations. By integrating advanced technology solutions, the Senior Director, Information Technology & Strategic Planning enhances the efficiency of data management and project reporting. Joel Woods manages the strategic planning process, aligning technology investments with the broader business objectives of the organization. This role involves collaborating with department heads to identify digital transformation opportunities that improve service delivery. Woods drives the implementation of secure, scalable systems that protect sensitive client data while facilitating seamless collaboration across global teams. Through proactive technology management, Woods ensures that the company maintains a robust digital foundation, enabling the organization to stay ahead in the fast-paced and data-intensive contract research industry.

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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 8 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, President and CSO, Executive Vice President & Chief Revenue Officer, Services.