Repligen Executive and Leadership Team

September, 2026

Leadership Overview

Repligen has 5 executives leading key functions including strategy, information technology, financial management, operational scaling, and human capital development.

Focused on advancing bioprocessing through high-value product innovation, Repligen delivers flexible solutions that address critical steps in the production of biologic drugs while maintaining a commitment to global life sciences excellence.

Leadership Roles at Repligen

  • Chief Executive Officer - Olivier Loeillot
  • Chief Financial Officer - Jason Garland
  • Chief Operating Officer - James Bylund
  • Chief Information Officer - Keith Lee Lee Robinson
  • Vice President & Global Head of Human Resources - Leslie Galvin
  • Olivier Loeillot - Chief Executive Officer

    Olivier Loeillot, the Chief Executive Officer at Repligen, directs the overarching strategic vision for the bioprocessing organization. By prioritizing the development of high-value products, the Chief Executive Officer ensures the company maintains a competitive edge in the production of biologic drugs. Loeillot oversees the integration of new technologies across global markets, driving expansion and operational efficiency. This leadership role involves constant collaboration with the Board to align long-term growth objectives with current market demands. By fostering a culture of innovation, Olivier Loeillot secures the company's position as a leader in the life sciences sector. The Chief Executive Officer monitors industry trends to anticipate shifts in bioprocessing requirements, ensuring that the firm remains agile. Through rigorous oversight of corporate initiatives, Loeillot guarantees that all departments contribute effectively to the mission of advancing biologic drug manufacturing capabilities worldwide.
    Olivier Loeillot

    Jason Garland - Chief Financial Officer

    Jason Garland, the Chief Financial Officer at Repligen, manages the fiscal health and capital allocation strategies for the bioprocessing enterprise. By overseeing financial planning, reporting, and investor relations, the Chief Financial Officer ensures the company possesses the resources required to sustain innovation in biologic drug production. Garland directs the budgeting process to support high-value product development and global market expansion. This leadership role involves analyzing financial performance to identify opportunities for cost optimization and revenue growth. By maintaining strong relationships with stakeholders, Jason Garland secures the financial stability necessary for long-term success. The Chief Financial Officer monitors economic conditions to mitigate risks associated with international operations, ensuring that the firm remains resilient. Through precise financial oversight, Garland supports the strategic goals of the organization, enabling the continued delivery of flexible solutions that address critical steps in the manufacturing of essential biologic therapies.
    Jason Garland

    James Bylund - Chief Operating Officer

    James Bylund, the Chief Operating Officer at Repligen, executes the manufacturing and supply chain strategies essential for delivering high-value bioprocessing products. By focusing on internal production scaling and quality control, the Chief Operating Officer ensures that the company meets the rigorous demands of the biologic drug industry. Bylund oversees the daily operations of manufacturing facilities, driving efficiency and consistency across all product lines. This leadership role involves coordinating with engineering and logistics teams to streamline the delivery of flexible solutions to global clients. By optimizing production workflows, James Bylund directly impacts the company's ability to support critical steps in drug manufacturing. The Chief Operating Officer maintains a focus on operational excellence, ensuring that all processes adhere to strict industry standards. Through the management of complex supply chains, Bylund guarantees that the organization remains capable of responding to the evolving needs of the life sciences market.
    James Bylund

    Keith Lee Lee Robinson - Chief Information Officer

    Keith Lee Lee Robinson, the Chief Information Officer at Repligen, architects the digital infrastructure necessary to support complex bioprocessing operations. By implementing advanced data analytics and secure network systems, the Chief Information Officer optimizes internal workflows and enhances the efficiency of product development cycles. Robinson manages the technological roadmap, ensuring that digital tools align with the company's mission to provide flexible solutions for biologic drug production. This role involves protecting critical intellectual property through robust cybersecurity measures while enabling seamless collaboration across international teams. By modernizing enterprise resource planning systems, Keith Lee Lee Robinson drives significant improvements in operational transparency and data-driven decision-making. The Chief Information Officer maintains a focus on scalable technology that supports rapid growth in the life sciences market. Through strategic investment in digital transformation, Robinson ensures that the organization remains at the forefront of technological innovation within the bioprocessing industry.

    Leslie Galvin - Vice President & Global Head of Human Resources

    Leslie Galvin, the Vice President & Global Head of Human Resources at Repligen, directs the talent acquisition and organizational development strategies that support the company's bioprocessing mission. By fostering a high-performance culture, the Vice President & Global Head of Human Resources ensures that the firm attracts and retains the specialized expertise required for biologic drug innovation. Galvin oversees global workforce planning, training programs, and employee engagement initiatives to align human capital with corporate objectives. This leadership role involves managing compensation structures and performance management systems to drive productivity across all departments. By promoting diversity and professional growth, Leslie Galvin strengthens the organization's ability to solve complex challenges in the life sciences sector. The Vice President & Global Head of Human Resources monitors organizational health to ensure that the company remains a preferred employer. Through strategic talent management, Galvin supports the overall growth and operational success of the entire enterprise.

    Frequently Asked Questions Regarding Repligen Top Executives and Leadership Team

    Who leads Repligen?
    Repligen is led by Olivier Loeillot (Chief Executive Officer), along with executives such as Jason Garland (Chief Financial Officer) and James Bylund (Chief Operating Officer).
    Who is part of Repligen’s executive team?
    The executive team of Repligen includes leaders such as Olivier Loeillot (Chief Executive Officer), Jason Garland (Chief Financial Officer), James Bylund (Chief Operating Officer) and other senior executives.
    How many executives does Repligen have?
    Repligen has 5 executives leading key business areas.
    What roles are included in Repligen’s leadership team?
    The leadership team of Repligen includes roles such as Chief Executive Officer, Chief Financial Officer, Chief Operating Officer, Chief Information Officer, Vice President & Global Head of Human Resources.