Mission
Maintain the OEIS website (oeis.org), used by scientists world-wide.
Public Charity
THE OEIS FOUNDATION INC
THE OEIS FOUNDATION INC is a nonprofit organization categorized as Public Charity based in WEST TRENTON, NJ. Its most recent IRS filing (2025) reports revenue of $112K, expenses of $145K, total assets of $3.5M. Imperigo tracks 3 reported grant relationships connected to this organization totaling approximately $7K.
EIN: 300562250
WEST TRENTON, NJ
Media & Communications
NTEE: A30
Latest filing: 2025
Total Revenue$112K
Total Expenses$145K
Total Assets$3.5M
Grant Records3
Funding Total$7K
Filing Years2021–2025
Where $100 goes at The Oeis Foundation Inc
How The Oeis Foundation Inc divides every $100 it spends, from its own Form 990 filings, averaged across 5 years.
$99
Programs
the work itself
$1
Management
running the organization
$0
Fundraising
none reported
No fundraising costs are reported. That often means fundraising runs through a separate affiliated organization that files its own return.
Inside the $99 for programs
$91
Maintain OEIS website (oeis.org), used by scientists world-wide
$8
Reach out to scientists world-wide to introduce them to the OEIS
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
SOCIAL SERVICES / SOCIAL BENEFITS
$1,000
GENERAL SUPPORT
$5,285
SOCIAL SERVIES / SOCIAL BENEFITS
$500
Showing up to 5 of 3 total records — full history available with membership.
Officers & Directors
Secretary
Alexandar D Healy
Trustee
Bridget Tenner Ragnarsson
Trustee
Charles R Greathouse
Trustee
David L Applegate
Trustee
Harvey P Dale
Trustee
Joerg Arndt
Officer compensation and complete director data available with membership.
Top Grant Purposes
Financial Trends
| Year | Revenue | Expenses | Assets |
|---|---|---|---|
| 2025 | $112K | $145K | $3.5M |
| 2024 | $2.5M | $23K | $3.1M |
| 2023 | $40K | $25K | $464K |
| 2022 | $66K | $22K | $389K |
| 2021 | $193K | $20K | $403K |
Between 2021 and 2025, reported annual revenue declined from $193K to $112K (-42%), with total assets most recently reported at $3.5M.
Interactive year-over-year charts and full filing details available with membership.