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. Silveira guides the expansion into new territories and the deepening of existing programs, ensuring alignment with SIM's core mission across medicine, education, community development, public health, and Christian witness. This leadership role involves fostering collaboration among regional directors and program leaders to maximize impact and resource allocation. By setting strategic priorities, Luis Silveira ensures SIM International effectively addresses global needs while upholding its foundational values. The Chief Executive Officer's vision propels the organization's growth and its commitment to serving communities on every continent. Silveira's focus remains on sustainable development and impactful outreach initiatives.

Gavin Boles, the Chief Financial Officer at SIM International, manages all financial aspects of the global mission organization. Boles oversees budgeting, financial planning, and reporting, ensuring fiscal responsibility across all operational areas, including medicine, education, and community development. This role is critical for maintaining the financial health and sustainability of SIM's diverse programs worldwide. By implementing robust financial controls and strategies, Gavin Boles supports the organization's ability to expand its reach and impact. The Chief Financial Officer's expertise ensures that resources are allocated efficiently to advance SIM's mission of Christian witness and service. Boles's stewardship of financial resources enables continued growth and operational effectiveness across continents.

James Kok, the President at SIM International, leads the strategic direction and operational execution of the Christian mission organization. Kok champions initiatives in education, community development, and public health, ensuring these programs align with SIM's broader mission. This position involves fostering strong relationships with stakeholders and partners to enhance the organization's global presence and effectiveness. By driving innovation in program delivery, James Kok supports SIM's commitment to Christian witness and service across diverse communities. The President's leadership ensures that SIM International remains responsive to evolving global needs and opportunities. Kok's dedication to operational excellence underpins the organization's extensive work on every continent.

Elzebir Rosario, the M. D. at SIM International, spearheads the organization's medical initiatives and public health programs. Rosario directs the implementation of healthcare services and strategies across various continents, focusing on improving community well-being and addressing critical health needs. This role is vital for integrating medical outreach with SIM's broader mission in education and Christian witness. By providing expert medical leadership, Elzebir Rosario ensures the highest standards of care and operational effectiveness in challenging environments. The M. D.'s expertise guides the development and execution of impactful health interventions. Rosario's commitment to advancing global health supports SIM International's comprehensive approach to service.