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Nonprofit · EIN 33-1519495

SENTINEL RESEARCH

Tax-exempt · AUSTIN, TX 78705

Financials

$215K$11K2024$764K$284K2025
Revenue Expenses · by fiscal year end
Financials of SENTINEL RESEARCH by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2025990$764,034$284,491$479,543$699,824$16,584$683,240
December 31, 2024990$215,158$11,461$203,697$206,072$2,375$203,697
Financial details: 990 for the year ended December 31, 2025

Revenue

Contributions, gifts and grants
$743,960
Program service revenue
$19,372
Investment income
$702
Other revenue
$0

Expenses

Grants and similar amounts paid
$0
Compensation of officers, directors and key employees
$46,667
Salaries, compensation and benefits (total)
$50,246
Professional fundraising fees
$0
Accounting fees
$15,635
Program services (functional)
$247,857
Management and general (functional)
$36,634

Balance sheet and other

Total assets, start of year
$206,072
Total assets, end of year
$699,824
Total liabilities, end of year
$16,584
Net assets, end of year
$683,240
Net assets without donor restrictions
$683,240
Gross receipts
$764,034
Employees
1
Volunteers
0
Year formed
2024
State of legal domicile
TX

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 for the year ended December 31, 2025, highest compensation first.

NameTitleHours / weekCompensationOther / benefits
Nuno SempereDirector
Trustee or director
40$0$86,647
Ratan Rai SurOfficer
Officer, Key employee, Highest-paid employee
40$64,167$0
Josh MorrisonDirector
Trustee or director
0$0$0
Vishal MainiDirector
Trustee or director
0$0$0
990 for the year ended December 31, 2024: 4 people
NameTitleHours / weekCompensation
Nuno SempereDirector
Trustee or director
0.5$0
Josh MorrisonDirector
Trustee or director
0$0
Ratan Rai SurOfficer
Officer
0.5$0
Vishal MainiDirector
Officer
0$0

Address and contacts

Address (IRS master file)
902 W 30TH ST, AUSTIN, TX 78705-2104
Principal officer (990 for 2025)
Ratan Rai Sur, 902 W 30TH ST, Austin, TX 78705
Signed the 990
Ratan Rai Sur, Officer
Phone
(646) 410-6411

Mission

We help the public by foreseeing and reacting to globally impactful and existential catastrophes. We forecast near-term risks, detect black swans earlier, and deploy our emergency response team to take mitigating action.

990 for the year ended December 31, 2025

Program accomplishments

  • Increased number of newsletter subscribers on global risks from about 1k to about 5k
    Expenses $84,580 · revenue $19,372
  • Published at least 50 weekly reports detailing the most urgent global risks, as well as 7 additional briefs on tooling and in-depth coverage. Maintained readiness of a team of 5 forecasters to make sense of risks and produce these briefs.
    Expenses $107,122
  • Built open source software to parse millions of news items to identify global risk signals.
    Expenses $56,155

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 yearYear endedDueIRS public records
2025December 31, 2025May 15, 2026990 on file
2024December 31, 2024May 15, 2025990 on file
2023December 31, 2023May 15, 2024Check at the IRS

IRS record

EIN
33-1519495
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
2025
Accounting year ends
December
Files
Form 990 or 990-EZ
Assets (IRS master file)
$699,824
Income (IRS master file)
$764,034

Filing history

FormYear endedRevenueExpensesAssetsReturn
990December 2025$764,034$284,491$699,824IRS
990December 2024$215,158$11,461$206,072IRS

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 33-1519495).

Questions about SENTINEL RESEARCH

What is the EIN of SENTINEL RESEARCH?
The employer identification number (EIN) of SENTINEL RESEARCH is 33-1519495.
Is SENTINEL RESEARCH tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2025.
Are donations to SENTINEL RESEARCH tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does SENTINEL RESEARCH 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 SENTINEL RESEARCH 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 SENTINEL RESEARCH last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended December 2025.
Who is the principal officer of SENTINEL RESEARCH?
The 990 for the year ended December 31, 2025 names Ratan Rai Sur.
Who are the officers and directors of SENTINEL RESEARCH?
The 990 for the year ended December 31, 2025 lists 4 people; 1 received compensation from the organization.
How much revenue does SENTINEL RESEARCH have?
On its 990 for the year ended December 31, 2025 it reported revenue of $764,034, expenses of $284,491 and total assets of $699,824 at year end.

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