The Oeis Foundation Inc

Nonprofit profile at a glance

EIN
300562250
IRS 990 coverage
2024–2025
Forms available
Form 990 2025, Form 990-EZ 2023, Form 990-N 2016
Location
West Trenton, NJ, USA
Phone
4127383782
Rating
85
Verdict
STRONG
Rating confidence
Moderate
Sector
Media, Communications Organizations

Reported finances

Revenue
$111,681
Expenses
$145,188
Assets
$3,479,140
Liabilities
$0

Source: IRS Form 990. Selected filing: tax year 2025. Amounts in USD.

Leadership & pay

15 people listed

Executive titles in this filing

  • Russell S Cox (President)
  • Marc LeBrun (Vice President)

Highest reported compensation

  • Sean Irvine (Trustee): $72,733 total reported compensation

Source: IRS Form 990. Selected filing: tax year 2025. Names and roles reflect this filing, not necessarily current officeholders.

Overview

Mission

Maintain the OEIS website (oeis.org), used by scientists world-wide.

What it reported doing in 2025

Reach out to scientists world-wide to introduce them to the OEIS.

Operating model

Revenue model
Mixed. Its operating money came from several sources; no one source provided a clear majority.
Distribution model
Direct operator. The filing allocates 100% of reported program-service expenses outside its grant, affiliate-payment, and member-benefit lines. This expense classification does not rule out separately announced grant awards.

The verdict

STRONG - A large share of available resources goes toward mission work and the filed numbers largely add up. Some filing-based governance responses are negative or unanswered and expenses are high relative to revenue.

Rating breakdown

  • Financial Efficiency: 89
  • Transparency & Controls: 92
  • Accountability: 76
  • Sustainability: 41
  • Growth: 100

Detailed rating inputs

Financial Efficiency

  • Mission deployment rate: 100%; rating input score 100
  • Program expense ratio: 98.6%; rating input score 99
  • Fundraising efficiency: Limited

Transparency & Controls

  • Consistency checks: 100%; rating input score 100; 64th percentile among comparable filings
  • Pay-setting controls: Limited
  • Foreign activity oversight: Limited
  • Grant itemization coverage: Limited
  • Major donor itemization: Yes; rating input score 100
  • Related-party transparency: Limited

Accountability

  • Independent voting board: 100%; rating input score 100; 64th percentile among comparable filings
  • Governance controls: 3 of 7 controls in place; rating input score 43
    • Conflict-of-interest policy: Fail
    • Whistleblower policy: Fail
    • Document-retention policy: Fail
    • CEO compensation review process: NotApplicable
    • Other executive compensation review process: NotApplicable
    • Form 990 shared with the board: Pass
    • Board meeting minutes documented: Pass
    • Audit committee oversight: Fail
    • Independent financial-statement audit: Pass

Sustainability

  • Operating margin: -30%; rating input score 8; 8th percentile among comparable filings
  • Total-asset coverage ratio: 23.96; rating input score 96; 96th percentile among comparable filings
  • Liabilities to assets ratio: 0; rating input score 77; 77th percentile among comparable filings
  • Officer compensation ratio: 50.1%; rating input score 3; 3rd percentile among comparable filings

Growth

  • Program expense growth: 144.8% per year; rating input score 100; 99th percentile among comparable filings
  • Revenue growth: 38.9% per year; rating input score 100; 95th percentile among comparable filings
  • Asset growth: 56.5% per year; rating input score 100; 96th percentile among comparable filings

Details

  • Where the money goes: 100% of revenue deployed · 98.6% of spending went to programs
  • Governance: 15 of 15 board members independent · 3 of 7 filing controls reported
  • Programs: 2 filed program accomplishments · $143K in reported program spending
  • Leadership: top reported pay $73K · 15 people listed
  • Consistency: 40 of 40 current checks pass
  • Schedules: 3 filed schedules · includes major donors
  • Filing history: 2 filing years from 2024 to 2025
  • Contacts: How to reach this organization
  • Money network: 1 filed money-flow record
  • Grant readiness: Federal tax and exclusion status, award history, and grant-maker relationships.
  • People: Everyone the filings name, and which of them the filings identify by more than a name.

Key Signals

Signals prioritize questions for review. They are not findings of misconduct.

  • Moderate — Accountability: Governance controls: 4 of 7 not reported.
  • High — Sustainability: Operating margin scored 8/100.
  • High — Sustainability: Officer compensation ratio scored 3/100.