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US nonprofit · EIN 930880205 · Ashland, ORiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 930880205) - NTEE activity code, address.Board and officers IRS Form 990 annual filings, Part VII (directors, trustees, officers, key employees), read year by year to observe tenure.Latest return IRS Form 990 series e-file data - 990 for the year to 31 December 2025: assets, liabilities, staff, website, telephone, pay.Finances by year IRS Form 990 e-file data - total revenue and total expenses by tax year.Renewal outlook Computed by Governance Register from the observed filing history and filed revenue (us-approach-v4-clean). Not a statement that the organisation is recruiting.Deductibility IRS Publication 78 data (code PC), downloaded 18 October 2026.Licence US Federal Government public domain.How we handle data

Geos Institute

Donations deductible
Revenue
$2.8m
year to 31 December 2025
Expenses
$2.7m
year to 31 December 2025
Total assets
$11.7m
$11.6m liabilities
Net assets
$64k
assets less liabilities
Directors and trustees
13
5.0y av
Staff
5
employees, year to 31 December 2025
Chair observed
≥4 yrs
Andrea Webster
Left since last filing
0
no seats appear to have opened
How am I connected?

Geos Institute's network

13 peoplei13 people on this map.The large node is the subject of this page. Solid lines are what the register itself records (13). Form 990 filings give names without a person identifier; SEC insider filings carry a CIK.

The board

13 listediTime on the board is observed from the annual filings: the IRS files no appointment date, so the bar counts years from the first filing the person appears on - a lower bound, not a filed start date. Names are exactly as filed. The IRS publishes no person identifier, so this edition does not yet link a person across organisations.Tenure and departures are observed across annual filings. Observed tenure is a lower bound - a member may have joined before the first year on record. The organisation reported 12 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.
NameRole as filedSinceOn the board
Andrea Webster ChairChairman2021
5 yrs
Arsum PathakDirector2024
2 yrs
Frank NutterBoard2024
2 yrs
Jett QuintusDirector2024
2 yrs
Jim InceDirector2018
8 yrs
Ken CrockerTreasurer2018
8 yrs
Linda LangstonDirector2019
7 yrs
Lindsay EXDirector2025
1 yr
Matthew McKinnonCompany secretary2019
7 yrs
Micha HahnVice Chair2021
5 yrs
Michael BerkowitzDirector2024
2 yrs
Scott Denning PHDDirector2018
8 yrs
Tonya GrahamExecutive Dir.2024
2 yrs
Under 5 years5 to 6 years6 years or moreShow all 13 →

Officers and senior leadership

2 listediNamed in Part VII as officers, key employees or highest-compensated staff - not board members, shown for completeness.
NameTitle as filedOn the filings
Dominick DellasalaPresident/CSOsince 2018
Tonya GrahamExecutive Dir.since 2018

Pay and hours

year to 31 December 2025iFrom Part VII of the Form 990: compensation reported for each officer, director, trustee, key employee and highest-paid staff member, and the average hours a week they report. Most board members are unpaid; a blank means nothing was reported. Pay from related organisations is shown separately.
NameTitle as filedHours a weekPay from the organisationRelated organisationsOther
Tonya GrahamExecutive Dir.40$120k
Ken CrockerTreasurer5$0
Lindsay ExDirector2$0
Michael BerkowitzDirector2$0
Micha HahnVice Chair2$0
Jett QuintusDirector2$0
Jim InceDirector2$0
Linda LangstonDirector2$0
Frank NutterBoard2$0
Scott Denning PhDDirector2$0
Arsum PathakDirector2$0
MATTHEW McKINNONSecretary2$0
Andrea WebsterChairman2$0

About

Legal name
Geos Institute
EIN
930880205
Address
84 Fourth Street, Ashland, OR, 97520-2150
State
Oregon
Mission
Geos institute builds innovative systems to help communities access the support services they need to address the climate crisis regardless of thier size, location, or wealth. (as filed on the Form 990)
Activity (NTEE)
C013 Environment
IRS classification
501(c)03 (tax-exempt under section 501(c)(3) where shown)
Classified purpose
Environment
Size band
8 (IRS master file code)
IRS ruling date
1 March 1993
Status
Code 01 (unconditional exemption)
Form 990 filings on record
8, latest 2025
IRS Publication 78
PC (contributions deductible)

Most connected

Longest observed on the filings

≥8years on the filingsJim Ince
≥8years on the filingsKen Crocker
≥8years on the filingsScott Denning PHD
≥7years on the filingsLinda Langston

Latest return

year to 31 December 2025iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 31 December 2025. US dollars, as filed.
Total assets
$11.7m
Total liabilities
$11.6m
Net assets or fund balances
$64k
Contributions and grants received
$2.7m
Program service revenue
$3k
Employees
5

Filed finances

1 yeariTotals as filed on the IRS Form 990 (revenue and expenses), by tax year.
Tax yearTotal revenueTotal expensesSurplus or deficit
2024$1.7m$1.7m$1k

As filed on the IRS Form 990. US dollars.

State registration

1 entityiBusiness-entity registers published by US states. These records are matched to this organisation by name and state, not by EIN, and are labelled as likely matches. Street addresses are not shown.
Geos Institute likely matchiMatched by exact name and state (and ZIP where shown). State registers do not publish EINs, so this is not a confirmed match. Source: Oregon Secretary of State, active business entities (data.oregon.gov tckn-sxa6). Licence not stated. Data last fetched 18 October 2026.
State
Oregon
Entity type
nonprofit corporation
Status
Active
Formed
19 November 1975
Registered agent
Tonya Graham (city and state not held)