Mission
To increase the pace, scope, and effectiveness of restoration and conservation to create benefits for both natural and human communities.
Public Charity
WILLAMETTE PARTNERSHIP
WILLAMETTE PARTNERSHIP is a nonprofit organization categorized as Public Charity based in Portland, OR. Its most recent IRS filing (2025) reports revenue of $3.8M, expenses of $3.3M, total assets of $1.7M. Imperigo tracks 32 reported grant relationships connected to this organization totaling approximately $1.1M.
EIN: 331103430
Portland, OR
Natural Resources Conservation & Protection
NTEE: C30
Latest filing: 2025
Total Revenue$3.8M
Total Expenses$3.3M
Total Assets$1.7M
Grant Records32
Funding Total$1.1M
Filing Years2021–2025
Where $100 goes at Willamette Partnership
How Willamette Partnership divides every $100 it spends, from its own Form 990 filings, averaged across 5 years.
$89
Programs
the work itself
$10
Management
running the organization
$1
Fundraising
raising the next dollar
Inside the $89 for programs
$49
The Center provided direct technical assistance to rural communities and local governments to help them access funding and resources for projects that align with our mission
$35
Through various awards and agreements, we work with state and federal agencies, local governments, nonprofits, and communities to find collaborative solutions to environmental challenges, including habitat conservation, water…
$5
We provide fiscal sponsorship and administrative/financial training support for mission-aligned nonprofits in our field to help them strengthen their organizational capacities
Source: Form 990 filings with the IRS, latest fiscal year 2025. Shares are from the organization's reported expenses. Data by Imperigo; not affiliated with the IRS.
Sample Grants Received
EFC_REGION10_BIL_FED
$161,232
GENERAL SUPPORT
$40,000
K12 Education
$30,000
For grant recipient's exempt purposes
$25,000
ENVIRONMENTAL AND ANIMALS
$20,000
Showing up to 5 of 32 total records — full history available with membership.
Officers & Directors
Member
Ann Mcquesten
Executive Director
Barton Robison
Secretary
Dan Vizzini
Member
Diane Taniguchi-Dennis
Finance Director
Erin Legg
Member
John Dunbar
Officer compensation and complete director data available with membership.
Top Grant Purposes
Financial Trends
| Year | Revenue | Expenses | Assets |
|---|---|---|---|
| 2025 | $3.8M | $3.3M | $1.7M |
| 2024 | $2.9M | $2.6M | $970K |
| 2023 | $1.4M | $1.9M | $601K |
| 2022 | $1.6M | $1.7M | $1.1M |
| 2021 | $2.0M | $1.5M | $1.3M |
Between 2021 and 2025, reported annual revenue grew from $2.0M to $3.8M (+93%), with total assets most recently reported at $1.7M.
Interactive year-over-year charts and full filing details available with membership.