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Delaware · Public charity

Longview Philanthropy USA Inc

We exist to move as much impact-adjusted money as possible to those working to reduce catastrophic and existential risks. In practice, we promote effective philanthropy that reduces the risk of a major global catastrophe through three main types of activities: advising, grantmaking, and events.

$13M
Granted FY2025(still arriving)
15
Itemized grants FY2025
4
Organizations funded FY2024
Read the full brief
Itemized, FY2025
$6.2M
The rest is grants the schedule does not break out
Median grant, FY2025
$240,000
Largest grant, FY2025
$1,600,000
States reached, FY2025
7
Total assets, FY2025
$13M

Top grantees

Largest recipients by total granted, FY2024 to FY2025, and the share of each one’s budget the grants supplied at peak.

GranteeTotal grantedYearsShare of their budget
Horizon Institute for Public Service$1,716,28521%
The Rand Corporation$1,300,0001n/a
Mats Research Inc$1,052,0001n/a
Rethink Priorities$622,98321%
Foundation for Secure Ai Inc$400,0001n/a
Center for Strategic and International Studies$338,00011%
Neuromatch Inc$310,000111%
Model Evaluation and Threat Research Inc$173,0001n/a
Active Site Research Inc$97,00014%
University of Chicago$93,50010%
Show all 16 grantees
All grantees of Longview Philanthropy USA Inc by total granted
GranteeTotal grantedYearsShare of their budget
Horizon Institute for Public Service$1,716,28521%
The Rand Corporation$1,300,0001n/a
Mats Research Inc$1,052,0001n/a
Rethink Priorities$622,98321%
Foundation for Secure Ai Inc$400,0001n/a
Center for Strategic and International Studies$338,00011%
Neuromatch Inc$310,000111%
Model Evaluation and Threat Research Inc$173,0001n/a
Active Site Research Inc$97,00014%
University of Chicago$93,50010%
The Trustees of Princeton University$70,00010%
Herbert Scoville Jr Peace$50,0001n/a
Future Tech Insights Inc$50,0001n/a
Pacific Forum International$50,00012%
Ai Objectives Institute$18,84311%
Center for Responsible Innovation Ltd$10,0001n/a

Where it is load-bearing

Each grantee by its size and the share of its budget Longview Philanthropy USA Inc supplied at peak.

25%50%75%100%$10M$100Mgrantee revenue →↑ funder's share of their budgetHorizon Institute for Public Service: $1,716,285 over 2y, 0.9% of budgetRethink Priorities: $622,983 over 2y, 1.1% of budgetCenter for Strategic and International Studies: $338,000 over 1y, 0.7% of budgetNeuromatch Inc: $310,000 over 1y, 11% of budgetActive Site Research Inc: $97,000 over 1y, 4.3% of budgetUniversity of Chicago: $93,500 over 1y, 0.0% of budgetThe Trustees of Princeton University: $70,000 over 1y, 0.0% of budgetPacific Forum International: $50,000 over 1y, 1.5% of budgetAi Objectives Institute: $18,843 over 1y, 1.0% of budget

Tap a dot to name the grantee.

How this is measured
Share of budget is the funder’s grant in a year over the grantee’s total revenue that year, at its highest across the years we hold; revenue is from all sources. Only grantees confirmed against their own filings, whose grants do not exceed their revenue, are plotted: the largest 9.

Compare Longview Philanthropy USA Inc with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to Longview Philanthropy USA Inc?

Find your warmest path to Longview Philanthropy USA Inc through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.

Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.

About Longview Philanthropy USA Inc

How much does Longview Philanthropy USA Inc give?
Longview Philanthropy USA Inc reported 15 itemized grants totaling $6,187,483, out of $12,599,230 in total grant expense reported on the return in its FY2025 IRS filing.
What does Longview Philanthropy USA Inc fund?
By grant dollars over FY2024 to FY2025, its largest causes are Human Services (48%), Public Benefit (26%), Philanthropy (11%).
Who are Longview Philanthropy USA Inc's largest grantees?
By total granted over FY2024 to FY2025: Horizon Institute for Public Service ($1.7M), The Rand Corporation ($1.3M), Mats Research Inc ($1.1M).
Where is Longview Philanthropy USA Inc based?
Longview Philanthropy USA Inc is based in DE.

On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 18 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

How this is measured
Each figure carries one of six labels. Filed is what the funder reported on its return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears.

Generated from the IRS Form 990 e-file return for fiscal year 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

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