Wissner-slivka Foundation | Foundation Profile

GrantBay analyzes IRS Form 990-PF data to help grant seekers find fit funders like Wissner-slivka Foundation. Data shown is extracted from Form 990-PF filings.

EIN: 91-6458451

Foundation Overview

Based in Clyde Hill, WA, Wissner-slivka Foundation has awarded 42 grants totaling $2,068,852 to organizations in Rhode Island, Washington and 3 other states across the US. Individual grants range from $500 to $250,000, with a median award of $27,500.

Latest Tax Year
2023
Total Giving (all years)
$2,068,852
Total Assets
$1,597,139
Median Grant (all grants)
$27,500

Latest Form 990-PF Snapshot

Total Grants
2
Median Grant
$125,500
% Median Grant Growth
+356% (vs previous year)
Data extracted from IRS Form 990-PF filings. Last filing year: February 2026

Foundation Intelligence

Advanced analytics and strategic insights to help nonprofit organizations assess grant opportunities and optimize their application strategies

New Applicant Friendliness
Limited Sample: 0%

2 total grants. Insufficient data for reliable pattern analysis. Foundation may be highly selective or recently established.

Geographic Focus
Washington

79% of all grants are concentrated in Washington, demonstrating highly focused geographic giving. This foundation prioritizes deep community impact in its primary service area. Within Washington, funding concentrates in Bellevue (70%), Seattle (30%).

Funding Trajectory
-19%

Declining funding trend with 19% decrease over 7 years may indicate reduced grant opportunities or shifting foundation priorities. This trajectory suggests more competitive application environment.

Program Areas
General Purposes + 2 others

Diversified giving across multiple program areas with primary emphasis on general purposes (50%). This broad approach suggests openness to various causes and innovative cross-sector solutions.

Where is The Money Going?

Loading geographic data...
Loading chart...
Loading chart...
Loading chart...

Grants & Funding

Analyzing past grantees provides valuable insights into Wissner-slivka Foundation's funding preferences, organizational priorities, and grant making patterns. This historical data helps potential applicants understand the foundation's strategic focus and identify successful funding approaches.

Name Amount Location Purpose Year
Kindering Center $1,000 Bellevue, WA, US General Support 2023
Overlake Hospital Foundation $250,000 Bellevue, WA, US Advancing Care Together Campaign 2023
Jacques Pepin Foundation $5,000 Barrington, RI, US General Support 2022
Kindering Center $30,000 Bellevue, WA, US General Support 2022
Overlake Hospital Foundation $36,883 Bellevue, WA, US Campaign Futurecare 2022
Overlake Hospital Foundation $5,000 Bellevue, WA, US Bandage Ball / Annual Auction Fundraiser 2022
Peace First $25,000 Boston, MA, US Support For Youth Investment Fund 2022
Seattle Children's Foundation $100,000 Seattle, WA, US Support Of Jim Olsen Lab 2022
Jacques Pepin Foundation $5,000 Barrington, RI, US General Support 2022
Kindering Center $30,000 Bellevue, WA, US General Support 2022
Overlake Hospital Foundation $36,883 Bellevue, WA, US Campaign Futurecare 2022
Overlake Hospital Foundation $5,000 Bellevue, WA, US Bandage Ball / Annual Auction Fundraiser 2022
Peace First $25,000 Boston, MA, US Support For Youth Investment Fund 2022
Seattle Children's Foundation $100,000 Seattle, WA, US Support Of Jim Olsen Lab 2022
Jacques Pepin Foundation $5,000 Barrington, RI, US General Support 2022
Kindering Center $30,000 Bellevue, WA, US General Support 2022
Overlake Hospital Foundation $36,883 Bellevue, WA, US Campaign Futurecare 2022
Overlake Hospital Foundation $5,000 Bellevue, WA, US Bandage Ball / Annual Auction Fundraiser 2022
Peace First $25,000 Boston, MA, US Support For Youth Investment Fund 2022
Seattle Children's Foundation $100,000 Seattle, WA, US Support Of Jim Olsen Lab 2022
Kindering Center $2,000 Bellevue, WA, US General Support 2021
Overlake Hospital Foundation $30,092 Bellevue, WA, US Challenge Grant 2021
Seattle Children's Foundation $100,000 Seattle, WA, US Support Of Jim Olsen Lab 2021
University Of Washington $100,000 Seattle, WA, US Endowed Chair / Ed Lazowska 2021
Bellevue Botanical Garden Society $500 Bellevue, WA, US General Support 2021
Kindering Center $25,000 Bellevue, WA, US General Support 2021
Kindering Center $25,000 Bellevue, WA, US General Support 2020
Overlake Hospital Foundation $105,144 Bellevue, WA, US Project Futurecare 2020
Peace First Inc $25,000 Boston, MA, US Youth Investment Fund 2020
Kidsquest Children Museum $10,000 Bellevue, WA, US General Support 2020
Kindering Center $11,000 Bellevue, WA, US General Support 2018
Overlake Hospital Foundation $10,000 Bellevue, WA, US General Support 2018
Overlake Hospital Foundation $102,467 Bellevue, WA, US Project Futurecare 2018
Child Mind Institute $5,000 New York, NY, US General Support 2017
Fred Hutchinson Cancer Research Institute $100,000 Seattle, WA, US Pediatric Oncology 2017
Kindering Center $1,000 Bellevue, WA, US General Support 2017
University Of Washington $150,000 Seattle, WA, US Institute For Protein Design 2017
University Of Washington $100,000 Seattle, WA, US Computer Science & Engineering Capital Campaign 2017
Fred Hutchinson Cancer Research Institute $100,000 Seattle, WA, US Pediatric Oncology 2016
Kindering Center $10,000 Bellevue, WA, US General Support 2016
Northwestern University $100,000 Evanston, IL, US Education 2016
University Of Washington $100,000 Seattle, WA, US Baker Lab Of Molecular Engineering And Sciences 2016

Foundations Similar to Wissner-slivka Foundation

Discover 5 foundations with comparable assets ($1,562,419-$1,669,181), similar grant patterns, and geographic focus in WA that may also align with your organization's funding needs and grant seeking strategy.

Foundation Name Total Assets Typical Grant Size Service Area Similarity Match

EIN: 93-4899063 | 7 grants awarded
$1,584,816
(≈ Similar)
$25,000
median grant
Issaquah, WA
Same state
100%
Excellent match

EIN: 30-6083952 | 21 grants awarded
$1,610,284
(≈ Similar)
$26,099
median grant
Mercer Island, WA
Same state
100%
Excellent match

EIN: 83-1451681 | 15 grants awarded
$1,562,419
(≈ Similar)
$24,000
median grant
Clyde Hill, WA
Same state
99%
Excellent match

EIN: 91-1872763 | 42 grants awarded
$1,664,974
(≈ Similar)
$20,750
median grant
Issaquah, WA
Same state
98%
Excellent match

EIN: 04-3391489 | 14 grants awarded
$1,669,181
(≈ Similar)
$50,000
median grant
Federal Way, WA
Same state
98%
Excellent match

Contact Information

Official contact details for Wissner-slivka Foundation as registered with the IRS. These details are essential for grant applications, correspondence, and due diligence processes.

EIN 91-6458451
Website http://www.slivka.org
Address PO BOX 3904 Bellevue, WA 98009-3904

Key People (5)

Board members, trustees, and key staff who oversee Wissner-slivka Foundation's grant making decisions and strategic direction. Understanding leadership composition can provide insights into foundation priorities and potential networking opportunities.

Trustee Benjamin W Slivka
Trustee Lisa Wissner-slivka
Trustee Max Slivka
Trustee Nathaniel Slivka
Trustee Lauren Slivka

Forms 990-PF

IRS Form 990-PF filings provide comprehensive financial information, grant details, and operational data. These documents are essential resources for understanding foundation capacity, giving patterns, and strategic priorities.

Form 990-PF Research Tips
  • Review Part XV for detailed grant recipient information and funding purposes
  • Check Part I for total assets, annual giving amounts, and payout requirements
  • Examine Part VIII for key personnel compensation and board structure
  • Look for trends across multiple years to understand giving patterns

About This Foundation Profile

This comprehensive foundation profile for Wissner-slivka Foundation is powered by Grant Bay's advanced foundation research platform. Our system analyzes IRS Form 990-PF filings, grant histories, and philanthropic patterns to provide nonprofit organizations with actionable intelligence for grant seeking success.

Data Sources & Accuracy

All information is derived from official IRS filings and public records. Grant Bay processes thousands of Form 990-PF documents to extract grant details, financial data, and organizational information. Data accuracy depends on foundation reporting quality and IRS filing completeness.

Research Applications

Use this profile for prospect research, grant strategy development, application preparation, and relationship building. Combine this data with additional research on foundation priorities, application processes, and board member backgrounds for comprehensive grant seeking strategies.

Data Currency: Last updated February 2026 based on IRS Form 990-PF filings. Foundation information reflects most recent available tax year data.