Mission
Research and development of geothermal systems
Public Charity
Hotrock Energy Research Organization
Hotrock Energy Research Organization is a Public Charity headquartered in Seattle, WA. Financial data from the 2025 filing: $712K revenue, $695K expenses, $43K total assets. 1 publicly reported grants to this organization, totaling roughly $36K, appear in IRS filings.
EIN: 473849152
Seattle, WA
Latest filing: 2025
Total Revenue$712K
Total Expenses$695K
Total Assets$43K
Grant Records1
Funding Total$36K
Filing Years2020–2025
Sample Grants Received
TO SUPPORT THE LAUNDRY LIST PROJECT
$36,000
Showing up to 5 of 1 total records — full history available with membership.
Officers & Directors
Director
Britt Ide
Director, Secretary
Jill Watz
Director
Steven Klein
President, Treasurer
Susan Petty
Director
Tim Mcdonald
Officer compensation and complete director data available with membership.
Top Grant Purposes
Financial Trends
| Year | Revenue | Expenses | Assets |
|---|---|---|---|
| 2025 | $712K | $695K | $43K |
| 2024 | $306K | $326K | $25K |
| 2023 | $115K | $84K | $45K |
| 2022 | $174K | $170K | $16K |
| 2020 | $189K | $187K | $11K |
Between 2020 and 2025, reported annual revenue grew from $189K to $712K (+276%), with total assets most recently reported at $43K.
Interactive year-over-year charts and full filing details available with membership.