Milliman Executive and Leadership Team

July, 2026

Leadership Overview

Milliman has 6 executives leading key functions including marketing, information technology, operations, human resources, technology, and executive leadership.

Driven by objectivity and professional excellence, Milliman addresses complex risks globally, providing solutions across insurance, financial services, healthcare, life sciences, and employee benefits to help people plan for the future with confidence.

Leadership Roles at Milliman

  • Chief Operating Officer - Gary Wald
  • President - Marie Killian
  • Chief Marketing Officer - Matthew Curtis
  • Chief Information Officer - Hitesh Sachan
  • Chief Human Resources Officer - Victoria Gleeson
  • Principal and Chief Technology Officer Milliman Pluritem - John Clark
  • Gary Wald - Chief Operating Officer

    Gary Wald, the Chief Operating Officer at Milliman, manages the firm's global operational efficiency and service delivery across its diverse client base. Wald oversees the execution of strategies that address complex risks in insurance, financial services, and healthcare, ensuring seamless client engagement and project management. This leadership position involves optimizing internal processes and resource allocation to support the multidisciplinary team of actuaries, clinicians, and data scientists. By driving operational excellence, Gary Wald reinforces Milliman's reputation for objectivity and professional excellence worldwide. The Chief Operating Officer's focus on efficient operations directly contributes to Milliman's ability to deliver innovative solutions and help clients achieve their business, financial, and social goals, fostering confidence in future planning.

    Marie Killian - President

    Marie Killian, the President at Milliman, provides overarching strategic direction and leadership for the firm's global operations. Killian guides Milliman's mission to address complex risks across insurance, financial services, healthcare, and employee benefits sectors worldwide. This executive position involves fostering a culture of objectivity and professional excellence among the firm's principals and multidisciplinary teams. By ensuring alignment with Milliman's core values, Marie Killian drives the firm's commitment to delivering innovative solutions and expert guidance. The President's leadership is instrumental in supporting clients in achieving their business, financial, and social goals, empowering them to plan for the future with confidence.
    Marie Killian

    Matthew Curtis - Chief Marketing Officer

    Matthew Curtis, the Chief Marketing Officer at Milliman, directs global marketing strategy and brand development. Overseeing all promotional activities and market research initiatives, Curtis ensures Milliman's value proposition resonates across diverse client sectors, including insurance, financial services, and healthcare. This leadership role involves crafting targeted campaigns that highlight the firm's expertise in addressing complex risks like extreme weather and financial insecurity. By analyzing market trends and client needs, Matthew Curtis drives demand generation and strengthens Milliman's position as an independent firm owned and managed by its principals. The Chief Marketing Officer's efforts are crucial for communicating the firm's commitment to objectivity and professional excellence to a worldwide audience, supporting Milliman's mission to help people plan for the future with confidence.
    Matthew Curtis

    Hitesh Sachan - Chief Information Officer

    Hitesh Sachan, the Chief Information Officer at Milliman, architects the firm's global technology infrastructure and digital transformation initiatives. Sachan oversees the integration of advanced technology solutions that support Milliman's actuarial rigor and data science capabilities across insurance, financial services, and healthcare sectors. This critical role involves ensuring the security, scalability, and efficiency of all IT systems, enabling the multidisciplinary team of actuaries, technologists, and scientists to address complex global risks. By driving innovation in technology, Hitesh Sachan enhances the firm's ability to provide objective insights and professional excellence to clients worldwide. The Chief Information Officer's strategic direction ensures Milliman's technological foundation supports its mission of helping organizations and individuals plan for the future with confidence.
    Hitesh Sachan

    Victoria Gleeson - Chief Human Resources Officer

    Victoria Gleeson, the Chief Human Resources Officer at Milliman, cultivates the firm's culture of innovation and professional excellence. Gleeson directs talent acquisition, development, and retention strategies to support the multidisciplinary team of actuaries, technologists, and economists addressing complex global risks. This role is pivotal in fostering an environment where principals bring strong technical and business expertise across diverse fields, serving clients in insurance, financial services, and healthcare. By championing employee growth and engagement, Victoria Gleeson ensures Milliman maintains its objective approach and commitment to client success. The Chief Human Resources Officer's leadership is fundamental to attracting and retaining the specialized talent required to help people plan for the future with confidence.
    Victoria Gleeson

    John Clark - Principal and Chief Technology Officer Milliman Pluritem

    John Clark, the Principal and Chief Technology Officer Milliman Pluritem at Milliman, spearheads technological innovation and platform development for specialized solutions. Clark directs the strategic implementation of advanced technologies that enhance Milliman's capacity to address complex risks in financial services and insurance sectors. This executive role involves overseeing the architecture and deployment of cutting-edge systems, enabling the firm's deep expertise in actuarial science and data analytics. By driving technological advancement, John Clark reinforces Milliman's commitment to professional excellence and objective client guidance. The Chief Technology Officer's vision ensures Milliman's technology offerings empower clients to navigate market volatility and achieve their financial goals, fostering confidence in future planning.

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    Frequently Asked Questions Regarding Milliman Top Executives and Leadership Team

    Who leads Milliman?
    Milliman is led by Gary Wald (Chief Operating Officer), along with executives such as Marie Killian (President) and Matthew Curtis (Chief Marketing Officer).
    Who is part of Milliman’s executive team?
    The executive team of Milliman includes leaders such as Gary Wald (Chief Operating Officer), Marie Killian (President), Matthew Curtis (Chief Marketing Officer) and other senior executives.
    How many executives does Milliman have?
    Milliman has 6 executives leading key business areas.
    What roles are included in Milliman’s leadership team?
    The leadership team of Milliman includes roles such as Chief Operating Officer, President, Chief Marketing Officer, Chief Information Officer, Chief Human Resources Officer.