Nonprofit · EIN 93-2180973
OPEN ORDINALS INSTITUTE
Tax-exempt · OAKLAND, CA 94608
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-EZ | $39,116 | $111,642 | -$72,526 | $49,632 | – | $49,632 |
| December 31, 2024 | 990 | $150,622 | $170,965 | -$20,343 | $77,360 | $0 | $77,360 |
| December 31, 2023 | 990-EZ | $121,720 | $73,706 | $48,014 | $97,703 | – | $97,703 |
Financial details: 990-EZ for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $7,014
- Net gain from sales of assets
- $32,102
Expenses
- Compensation of officers, directors and key employees
- $0
- Professional fees and payments to contractors
- $105,671
- Other expenses
- $5,971
- Program services (functional)
- $75,351
Balance sheet and other
- Total assets, start of year
- $77,360
- Total assets, end of year
- $49,632
- Total liabilities, end of year
- –
- Net assets, end of year
- $49,632
- Cash, savings and investments
- $4,614
- Gross receipts
- $52,391
From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.
Officers, directors and key employees
As listed on the 990-EZ for the year ended December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Erin Redwing | Director | 0 | $0 |
| Ulrich Callmeier | Director | 0 | $0 |
| Raphael Schleithoff | Director | 0 | $0 |
990 for the year ended December 31, 2024: 4 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Erin Redwing | Director Trustee or director | 0 | $0 |
| Ulrich Callmeier | Director Trustee or director | 0 | $0 |
| Raphael Schleithoff | Director Trustee or director | 0 | $0 |
| Casey Rodarmor | Director Trustee or director | 0 | $0 |
990-EZ for the year ended December 31, 2023: 4 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Erin Redwing | Director | 0 | $0 |
| Ulrich Callmeier | Director | 0 | $0 |
| Raphael Schleithoff | Director | 0 | $0 |
| Casey Rodarmor | Director | 0 | $0 |
Address and contacts
- Address (IRS master file)
- 915B 52ND ST, OAKLAND, CA 94608-3436
- Signed the 990-EZ
- Erin Redwing, Director
- Website
- https://ordinals.org/about/
- Return prepared by
- George Dimov CPA
California records
California keeps its own records of charities and corporations. Search them by EIN 93-2180973 or by the name OPEN ORDINALS INSTITUTE.
- Attorney General, Registry of Charities and Fundraisers
- Registration status and filed reports (CT-TR-1, RRF-1)
- Secretary of State, bizfile Online
- Corporation status, entity number, agent for service
- Franchise Tax Board
- Entity status letter (state tax exemption, good standing)
Mission
To provide technical infrastructure, software development, and community support for the Ordinals protocol and related decentralized technologies
Program accomplishments
- Key activities included the development of open-source software tools and the management of high-performance server environments to ensure global data availability. These efforts facilitate decentralized technology research and provide critical resources for the developer community, directly advancing our mission of supporting open-access protocol developmentExpenses $75,351
What it must file and when
IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | December 31, 2025 | May 15, 2026 | 990-EZ on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990 on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990-EZ on file |
IRS record
- EIN
- 93-2180973
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (170(b)(1)(A)(vi))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 2026
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Community improvement and capacity building (S99)
- Assets (IRS master file)
- $49,632
- Income (IRS master file)
- $52,391
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-EZ | December 2025 | $39,116 | $111,642 | $49,632 | XML |
| 990 | December 2024 | $150,622 | $170,965 | $77,360 | XML |
| 990-EZ | December 2023 | $121,720 | $73,706 | $97,703 | IRS |
990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 93-2180973).
Questions about OPEN ORDINALS INSTITUTE
- What is the EIN of OPEN ORDINALS INSTITUTE?
- The employer identification number (EIN) of OPEN ORDINALS INSTITUTE is 93-2180973.
- Is OPEN ORDINALS INSTITUTE tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2026.
- Are donations to OPEN ORDINALS INSTITUTE tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does OPEN ORDINALS INSTITUTE file?
- Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
- When is the next return of OPEN ORDINALS INSTITUTE due?
- The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did OPEN ORDINALS INSTITUTE last file with the IRS?
- The latest return in the IRS public files is the 990-EZ for the year ended December 2025.
- Who are the officers and directors of OPEN ORDINALS INSTITUTE?
- The 990-EZ for the year ended December 31, 2025 lists 3 people; 0 received compensation from the organization.
- How much revenue does OPEN ORDINALS INSTITUTE have?
- On its 990-EZ for the year ended December 31, 2025 it reported revenue of $39,116, expenses of $111,642 and total assets of $49,632 at year end.
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All nonprofits in OAKLAND · California · Community improvement and capacity building