Mount St Helens Institute
Donations deductibleMount St Helens Institute's network
13 people7 organisationsi13 people and 7 organisations on this map.The large node is the subject of this page. Solid lines are what the register itself records (13). Violet dotted lines (7) are likely: the same full name sits on the current board of another organisation in the same register and region. Form 990 filings give names without a person identifier; SEC insider filings carry a CIK. It may be a different person.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 in the tables. The network map shows same-name matches as likely links only, never as confirmed.Time served and departures are observed across annual filings. Observed time served is a lower bound - a member may have joined before the first year on record. The organisation reported 11 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.| Name | Role as filed | Since | On the board |
|---|---|---|---|
| Karissa Lowe Chair | Past-Chair | 2022 | 4 yrs |
| REX Burkholder Chair | Chair | 2022 | 4 yrs |
| Angie Diefenbach | Member | 2022 | 4 yrs |
| Bill NYE | Emeritus | 2018 | 8 yrs |
| Emma Johnson | Member | 2023 | 3 yrs |
| Hector Hinojosa | Member | 2023 | 3 yrs |
| JOE CHA | Member | 2023 | 3 yrs |
| John Bishop | Emeritus | 2018 | 8 yrs |
| Marty Scott | Treasurer | 2020 | 6 yrs |
| Mary Sauer | Vice-Chair | 2018 | 8 yrs |
| Nathan Reynolds | Company secretary | 2018 | 8 yrs |
| Sara Shah | Member | 2020 | 6 yrs |
| Steve Olson | Member | 2023 | 3 yrs |
Officers and senior leadership
4 listediNamed in Part VII as officers, key employees or highest-compensated staff - not board members, shown for completeness.| Name | Title as filed | On the filings |
|---|---|---|
| Alyssa Hoyt | Acting Executive Director | 2024 |
| Cathy DOW | Finance and HR Director | since 2022 |
| Kate Richardson | Finance and HR Director | 2020 |
| Ray Yurkewycz | Executive Director | 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.| Name | Title as filed | Hours a week | Pay from the organisation | Related organisations | Other |
|---|---|---|---|---|---|
| Abi Groskopf | Co-Executive Director | 40 | $86k | $9k | |
| Alyssa Hoyt | Co-Executive Director | 40 | $86k | $9k | |
| Jennifer Steward | Chief Financial Officer | 40 | $71k | $11k | |
| Joe Cha | Member | 1 | $0 | ||
| Mary Sauer | Chair | 1 | $0 | ||
| Hector Hinojosa | Vice-Chair | 1 | $0 | ||
| Marty Scott | Treasurer | 1 | $0 | ||
| Sara Shah | Member | 1 | $0 | ||
| Rex Burkholder | Past Chair | 1 | $0 | ||
| Angie Diefenbach | Member | 1 | $0 | ||
| Steve Olson | Secretary | 1 | $0 | ||
| Tony Johnson | Member | 1 | $0 | ||
| Gala Miller | Member | 1 | $0 | ||
| Molly Whitney | Member | 1 | $0 | ||
| Patty Wood | Member | 1 | $0 |
About
- Legal name
- Mount St Helens Institute
- EIN
- 911569993
- Address
- 42218 Ne Yale Bridge Rd, Amboy, WA, 98601-4601
- State
- Washington
- Mission
- To advance understanding and stewardship of the earth through science, education and exploration of volcanic landscapes (as filed on the Form 990)
- Activity (NTEE)
- C60 Environment
- IRS classification
- 501(c)03 (tax-exempt under section 501(c)(3) where shown)
- Classified purpose
- Environment
- Size band
- 5 (IRS master file code)
- Formed
- 1996
- Principal officer
- Abigail Groskopf (as named on the Form 990)
- IRS ruling date
- 1 May 1996
- Status
- Code 01 (unconditional exemption)
- Form 990 filings on record
- 6, latest 2024
- IRS Publication 78
- PC (contributions deductible)
Most connected
Longest observed on the filings
≥8years on the filingsBill NYE
≥8years on the filingsJohn Bishop
≥8years on the filingsMary Sauer
≥8years on the filingsNathan Reynolds
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
- $675k
- Total liabilities
- $176k
- Net assets or fund balances
- $499k
- Contributions and grants received
- $609k
- Program service revenue
- $581k
- Grants and similar paid out
- $63k
- Employees
- 31
- Volunteers
- 269
Filed finances
1 yeariTotals as filed on the IRS Form 990 (revenue and expenses), by tax year.| Tax year | Total revenue | Total expenses | Surplus or deficit |
|---|---|---|---|
| 2024 | $1.1m | $1.5m | Deficit $359k |
As filed on the IRS Form 990. US dollars.
Grants paid
2 listediFrom Schedule I of the Form 990: grants and assistance to organisations in the United States, largest first (up to 25). Schedule I is filed only by organisations that gave more than $5,000 to any one recipient.| Recipient | Purpose | Amount |
|---|---|---|
| Rainier Beach High School Seattle Schools | Scholarships for low income students to attend camps and classes offered at mt st helens institute | $0 |
| Cowlitz Indian Tribe Garden | Scholarships for low income students to attend camps and classes offered at mt st helens institute | $0 |