The Sheri And Les Biller Family Foundation
The Sheri and Les Biller Family Foundation (Biller Foundation) is a Seattle-based private foundation that advances supportive cancer care, social impact theatre, and economic opportunity. The foundation site publishes annual reports, news, grant program descriptions, and lists its Seattle office, phone number, and contact email.
Source: Website · Mar 2026
Ideal Applicant
A mission-aligned nonprofit working in supportive cancer care, social-impact theatre, or career-connected learning (often based in WA or CA or with strong program ties there) with track record to absorb general operating support or program grants.
Good Fit
- • Clear programmatic alignment with supportive cancer care, social-impact theatre, or career-connected learning initiatives.
- • Organizational capacity to manage unrestricted or general operating support.
- • Evidence of impact, partnerships, or scalability that justifies larger multi-year grants.
- • A regional presence or partnership in Washington or California (where most grant dollars concentrate).
- • Willingness to engage with program staff (office hours/LOI) rather than relying solely on cold outreach.
Geography
Observed grants in the latest year reached 15 states, with a national multi-state footprint though dollars are concentrated in California and Washington.
Recipient Variety
The latest year shows 81 distinct recipients and 82 grants, with a mix of many small awards and some very large ones and a substantial number of first-time grantees (42) alongside recurring recipients.
New Applicants
Direct evidence of access is mixed: the site lists application information and optional office hours while also noting preselection, but the foundation funded 42 new recipients in the latest year, suggesting unfamiliar applicants can and do enter the portfolio.
Source: Zeffy Agent · Mar 2026
