SEI Executive and Leadership Team

August, 2026

Leadership Overview

SEI has 10 executives leading key functions including investment processing, investment management, and operations solutions.

Focused on delivering comprehensive financial services, SEI empowers institutional and private clients through advanced technology and strategic asset management. This commitment drives long-term value across global markets.

Leadership Roles at SEI

  • Chief Executive Officer - Stephen Millar
  • Principal Chief Executive Officer - Sanaz Mshnch
  • Chief Executive Officer (SEI International), Executive VP & Global Head of SEI’s Private Banking business - Sanjay Sharma
  • Chief Financial Officer, Chief Operating Officer & Executive VP - Sean Denham
  • Chief Technology Officer, Sei Sphere - Mark Tierney
  • Chief of Staff To the Chief People and Culture Officer - Emily Swope
  • Chief Technology Officer, Enterprise Cloud - Steven Zeh
  • Chief Marketing Officer, Recently & Executive Vice President & Member of Committee At Sei Executive - Mark Samuels
  • Chief Technology Officer, Sei Platforms & Applications - Zachary Womack
  • Chief Compliance Officer - Caroline Levitt
  • Stephen Millar - Chief Executive Officer

    Stephen Millar, the Chief Executive Officer at SEI, directs the overarching strategic vision for the firm. Millar oversees the integration of investment processing and management solutions to ensure market competitiveness. By aligning corporate objectives with client needs, the Chief Executive Officer maintains a focus on sustainable growth and operational excellence. This leadership role involves constant evaluation of financial service trends to adapt the business model effectively. Stephen Millar drives the expansion of service capabilities across North American and international markets. Through rigorous oversight of organizational performance, the Chief Executive Officer secures the firm's position as a global leader in financial operations. Millar fosters a culture of innovation that supports the delivery of complex investment solutions to a diverse client base, ensuring that the company remains at the forefront of the financial services industry.

    Sanaz Mshnch - Principal Chief Executive Officer

    Sanaz Mshnch, the Principal Chief Executive Officer at SEI, architects the foundational business strategies that support the firm's investment operations. Mshnch manages the high-level execution of corporate initiatives, ensuring that all departments align with the core mission of providing robust financial solutions. The Principal Chief Executive Officer monitors market shifts to adjust operational priorities, thereby maintaining the firm's agility in a volatile economic landscape. Sanaz Mshnch drives the development of internal frameworks that enhance service delivery for institutional partners. By coordinating with other senior leaders, the Principal Chief Executive Officer optimizes resource allocation to maximize efficiency. This role requires a deep understanding of global investment trends to guide the company toward long-term stability. Mshnch ensures that the firm's commitment to excellence remains consistent across all service lines, ultimately strengthening the market presence of the organization.

    Sanjay Sharma - Chief Executive Officer (SEI International), Executive VP & Global Head of SEI’s Private Banking business

    Sanjay Sharma, the Chief Executive Officer (SEI International), Executive VP & Global Head of SEI’s Private Banking business at SEI, directs the firm's expansion and service delivery in international markets. Sharma oversees the private banking division, ensuring that high-net-worth clients receive tailored investment management solutions. The Chief Executive Officer (SEI International), Executive VP & Global Head of SEI’s Private Banking business drives the growth of the firm's footprint across diverse geographic regions. By managing international operations, Sanjay Sharma ensures that the company's global strategy remains consistent with local regulatory requirements and market demands. This leadership role involves coordinating with regional teams to deliver high-quality financial services. Sharma manages the development of private banking products that address the unique needs of international clients. Through the strategic oversight of global business units, the Chief Executive Officer (SEI International), Executive VP & Global Head of SEI’s Private Banking business secures the firm's reputation as a premier provider of private banking and investment solutions.
    Sanjay Sharma

    Sean Denham - Chief Financial Officer, Chief Operating Officer & Executive VP

    Sean Denham, the Chief Financial Officer, Chief Operating Officer & Executive VP at SEI, directs the financial health and operational efficiency of the firm. Denham oversees the budgeting, financial reporting, and capital allocation processes that support the company's strategic goals. The Chief Financial Officer, Chief Operating Officer & Executive VP drives the optimization of internal operations to ensure that the firm functions with maximum productivity. By managing the intersection of finance and operations, Sean Denham ensures that resources are deployed effectively to support growth. This leadership role involves monitoring key performance indicators to maintain fiscal discipline across all business units. Denham manages the operational infrastructure that enables the delivery of investment services. Through the rigorous oversight of financial and operational systems, the Chief Financial Officer, Chief Operating Officer & Executive VP provides the stability and efficiency required for the firm to excel in the competitive financial services landscape.
    Sean Denham

    Mark Tierney - Chief Technology Officer, Sei Sphere

    Mark Tierney, the Chief Technology Officer, Sei Sphere at SEI, directs the technological evolution of the proprietary Sei Sphere platform. Tierney oversees the development of advanced digital tools that facilitate seamless investment processing for clients. The Chief Technology Officer, Sei Sphere ensures that the platform architecture remains scalable and secure, meeting the rigorous demands of the financial services sector. By integrating cutting-edge software solutions, Mark Tierney drives the modernization of investment management workflows. This leadership role involves close collaboration with engineering teams to implement features that enhance user experience and operational transparency. Tierney manages the technical roadmap to support the firm's global expansion, ensuring that digital infrastructure keeps pace with evolving market requirements. Through the continuous refinement of the Sei Sphere ecosystem, the Chief Technology Officer, Sei Sphere provides the necessary technological foundation for the company's ongoing success in the investment industry.

    Emily Swope - Chief of Staff To the Chief People and Culture Officer

    Emily Swope, the Chief of Staff To the Chief People and Culture Officer at SEI, coordinates the strategic initiatives that define the firm's internal culture and talent management. Swope oversees the alignment of human capital strategies with the broader business goals of the organization. The Chief of Staff To the Chief People and Culture Officer manages cross-functional projects that improve employee engagement and organizational efficiency. By facilitating communication between leadership and staff, Emily Swope drives the implementation of policies that foster a high-performance environment. This role involves analyzing workforce data to support decision-making processes regarding talent acquisition and development. Swope ensures that the firm's culture remains a competitive advantage in the financial services market. Through the management of key personnel programs, the Chief of Staff To the Chief People and Culture Officer supports the overall operational health of the company, ensuring that the workforce remains equipped to deliver superior investment solutions.

    Steven Zeh - Chief Technology Officer, Enterprise Cloud

    Steven Zeh, the Chief Technology Officer, Enterprise Cloud at SEI, architects the cloud infrastructure that powers the firm's global investment operations. Zeh oversees the migration and maintenance of enterprise-level systems to ensure high availability and data security. The Chief Technology Officer, Enterprise Cloud drives the adoption of cloud-native technologies to enhance the scalability of investment processing solutions. By managing the technical architecture, Steven Zeh ensures that the firm's digital assets remain resilient against evolving cyber threats. This leadership role involves coordinating with infrastructure teams to optimize performance across international data centers. Zeh manages the transition to modern cloud environments, which allows the company to process complex financial data with greater speed and accuracy. Through the strategic deployment of cloud resources, the Chief Technology Officer, Enterprise Cloud supports the firm's ability to provide reliable, high-performance services to institutional clients worldwide.

    Mark Samuels - Chief Marketing Officer, Recently & Executive Vice President & Member of Committee At Sei Executive

    Mark Samuels, the Chief Marketing Officer, Recently & Executive Vice President & Member of Committee At Sei Executive at SEI, directs the global brand strategy and market positioning. Samuels oversees the development of marketing campaigns that highlight the firm's expertise in investment management and operations. The Chief Marketing Officer, Recently & Executive Vice President & Member of Committee At Sei Executive drives the communication of the company's value proposition to institutional and private clients. By analyzing market trends, Mark Samuels ensures that the brand remains relevant and authoritative in the financial services sector. This leadership role involves collaborating with the executive committee to align marketing efforts with long-term business objectives. Samuels manages the firm's public image and client outreach programs to support growth initiatives. Through the strategic use of digital and traditional media, the Chief Marketing Officer, Recently & Executive Vice President & Member of Committee At Sei Executive strengthens the firm's market presence and client relationships.

    Zachary Womack - Chief Technology Officer, Sei Platforms & Applications

    Zachary Womack, the Chief Technology Officer, Sei Platforms & Applications at SEI, directs the engineering and deployment of the firm's core application suite. Womack oversees the lifecycle of software platforms that enable investment operations and client reporting. The Chief Technology Officer, Sei Platforms & Applications drives the innovation of user-facing tools to ensure they meet the complex needs of the financial services industry. By managing the development pipeline, Zachary Womack ensures that all applications are robust, intuitive, and compliant with industry standards. This leadership role involves working with product teams to translate business requirements into functional technical solutions. Womack manages the integration of new features that enhance the firm's service offerings. Through the continuous improvement of platform capabilities, the Chief Technology Officer, Sei Platforms & Applications provides the essential digital tools that allow the company to maintain its competitive edge in the global investment market.
    Zachary Womack

    Caroline Levitt - Chief Compliance Officer

    Caroline Levitt, the Chief Compliance Officer at SEI, directs the firm's adherence to global regulatory standards and internal policies. Levitt oversees the development and implementation of compliance programs that mitigate risk across all investment operations. The Chief Compliance Officer drives the culture of integrity and accountability within the organization. By monitoring changes in the regulatory environment, Caroline Levitt ensures that the firm remains compliant with international financial laws. This leadership role involves working with legal and operational teams to identify and address potential compliance vulnerabilities. Levitt manages the reporting processes that demonstrate the firm's commitment to ethical business practices. Through the continuous assessment of risk management frameworks, the Chief Compliance Officer provides the necessary oversight to protect the company's reputation and ensure the security of client assets. Levitt maintains the firm's standing as a trusted partner in the financial services industry by upholding the highest standards of regulatory compliance.

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    Frequently Asked Questions Regarding SEI Top Executives and Leadership Team

    Who leads SEI?
    SEI is led by Stephen Millar (Chief Executive Officer), along with executives such as Sanaz Mshnch (Principal Chief Executive Officer) and Sanjay Sharma (Chief Executive Officer (SEI International), Executive VP & Global Head of SEI’s Private Banking business).
    Who is part of SEI’s executive team?
    The executive team of SEI includes leaders such as Stephen Millar (Chief Executive Officer), Sanaz Mshnch (Principal Chief Executive Officer), Sanjay Sharma (Chief Executive Officer (SEI International), Executive VP & Global Head of SEI’s Private Banking business) and other senior executives.
    How many executives does SEI have?
    SEI has 10 executives leading key business areas.
    What roles are included in SEI’s leadership team?
    The leadership team of SEI includes roles such as Chief Executive Officer, Principal Chief Executive Officer, Chief Executive Officer (SEI International), Executive VP & Global Head of SEI’s Private Banking business, Chief Financial Officer, Chief Operating Officer & Executive VP, Chief Technology Officer, Sei Sphere.