SIM International Executive and Leadership Team

Luis Silveira, the Group Chief Executive Officer at SIM International, directs the overarching strategy and global operations of the Christian mission organization. Overseeing diverse initiatives in medicine, education, community development, public health, and Christian witness, Silveira ensures alignment with SIM's core mission across every continent. This leadership role involves guiding the organization's expansion and impact, fostering collaboration among regional teams, and maintaining the integrity of SIM's service delivery. By architecting long-term vision, Luis Silveira drives the organization's commitment to holistic development and spiritual engagement, ensuring resources are effectively deployed to meet critical global needs. The Group Chief Executive Officer's strategic direction is fundamental to SIM International's sustained presence and effectiveness in serving communities worldwide.

Gavin Boles, the Chief Financial Officer at SIM International, manages all financial aspects of the global mission organization. Overseeing budgeting, financial planning, and resource allocation, Boles ensures fiscal responsibility across SIM's diverse programs in medicine, education, community development, and public health. This critical role involves safeguarding the organization's assets, optimizing financial performance, and providing transparent financial reporting to stakeholders and donors. By implementing robust financial controls and strategies, Gavin Boles supports the sustainable execution of SIM International's mission on every continent. The Chief Financial Officer's expertise is vital for maintaining operational continuity and enabling the expansion of services that address critical human and spiritual needs worldwide.

James Kok, the President at SIM International, champions the organization's mission and strategic direction. Overseeing the integration of all functional areas, including medicine, education, community development, and Christian witness, Kok ensures cohesive program execution across global operations. This leadership position involves fostering strong relationships with partners, stakeholders, and field teams, driving organizational growth and impact. By advocating for SIM International's values and objectives, James Kok inspires commitment and facilitates the effective deployment of resources to meet diverse community needs. The President's vision and leadership are essential for advancing SIM's purpose of serving people and transforming lives on every continent.

Elzebir Rosario, the M. D. at SIM International, leads the organization's medical initiatives and public health programs. Overseeing healthcare delivery, medical training, and health education across various continents, Rosario ensures the highest standards of care are met. This role involves developing and implementing strategies to address critical health challenges within the communities SIM serves, integrating medical services with broader development and Christian witness efforts. By driving innovation in healthcare solutions and managing medical resources effectively, Elzebir Rosario directly contributes to improving well-being and alleviating suffering. The M. D.'s medical expertise is fundamental to SIM International's commitment to holistic service, ensuring that health and healing are central components of the organization's global impact.