Seattle International Foundation
A grant-making foundation supporting Seattle-area nonprofit organizations engaged in international development, with a strategic focus on Central America.
Last updated August 25, 2026
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Overview
Seattle International Foundation is a philanthropic grant-making organization established in 2006 by Bill Clapp and Paula Clapp. Its purpose is to strengthen the international-development ecosystem associated with the Seattle area, supporting nonprofit organizations whose work addresses development needs beyond the United States. The foundation has maintained a strategic emphasis on Central America, making it a regional philanthropic actor rather than a consumer-facing commercial brand. The foundation emerged as Seattle's international-aid sector was expanding. Its role has included supporting Seattle-area nonprofits involved in international development and helping sustain institutional capacity for organizations working across borders. This positioning places the foundation between local philanthropy and international cooperation: its geographic identity is rooted in Seattle, while the organizations and communities connected to its grant-making work may be located in other countries, particularly in Central America. The foundation's public profile also includes advocacy related to U.S. foreign assistance. Bill Clapp has lobbied the federal government on behalf of the Seattle International Foundation and Global Washington to support the continuation of United States foreign aid. This activity reflects an approach that combines private philanthropy with broader policy advocacy for international-development funding. Available reference material provides limited information about the foundation's grant programs, funding levels, staff structure, individual initiatives, and current operations. Accordingly, the organization is best characterized from the available evidence as a Seattle-based philanthropic foundation focused on international development, with Central America as a principal strategic region.
History
Seattle International Foundation was founded in 2006 by Bill Clapp and Paula Clapp. Its creation was connected to the expansion of Seattle's international-aid and development community. The founders established the organization as a grant-making foundation intended to support Seattle-area nonprofit organizations working in international development. From its formation, the foundation's identity combined a local base with an international mission. Rather than concentrating on domestic charitable services, it directed its philanthropic purpose toward organizations and activities concerned with development beyond the United States. Central America became its principal strategic focus, giving the foundation a regional orientation within the broader field of international aid. The foundation's work has also extended beyond grant-making. Bill Clapp has advocated before the U.S. federal government on behalf of the Seattle International Foundation and Global Washington in support of continued U.S. foreign aid. This advocacy connected the foundation to wider policy discussions about the role of American government funding in international development. The available reference material does not document a detailed chronology of individual grants, named programs, leadership changes, financial results, or organizational restructuring. On the evidence available, the foundation can be described as a Seattle-linked philanthropic institution that supports international-development nonprofits, particularly those connected with Central America, while participating in advocacy for sustained foreign assistance.
- 2006
Foundation established
[1]Bill Clapp and Paula Clapp founded the Seattle International Foundation to support Seattle's expanding international-aid sector.
Products and positioning
A Seattle-rooted philanthropic organization that supports international-development nonprofits and advocates for sustained U.S. foreign assistance, with particular attention to Central America.
Philanthropic grant-making · 2006
International-development grants
The foundation provides philanthropic support to Seattle-area nonprofit organizations engaged in international development. The available sources do not identify specific grant amounts, recurring grant cycles, or named recipient organizations.
Regional philanthropy
Central America-focused development support
Central America is identified as the foundation's strategic focus. Its support is directed toward development-oriented nonprofit activity connected with the region, although the available material does not provide a complete list of countries, programs, or partners.
Public-policy advocacy
Foreign-aid advocacy
Through Bill Clapp's advocacy, the foundation has participated in efforts urging the U.S. federal government to sustain foreign-aid funding. This represents a policy-oriented extension of its international-development mission.
Marketing campaigns
- Advocacy for continued U.S. foreign aid
United States
Bill Clapp lobbied the U.S. federal government on behalf of the Seattle International Foundation and Global Washington to support the continuation of United States foreign aid.
Sources2 sources
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