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California · Public charity

Watttime Corporation

To raise awareness about the potential to reduce environmental harm by shifting electricity use to particular times; to encourage the development and spread of common protocols for this practice.

$5.1M
Granted FY2025(still arriving)
8
Itemized grants FY2025
5
Organizations funded FY2024
40%
First-time grantees FY2024
Read the full brief
Itemized, FY2025
$3.9M
The rest is grants the schedule does not break out
Median grant, FY2025
$197,859
Largest grant, FY2025
$1,668,890
Organizations funded a year
4 to 5
FY2020 to FY2024
States reached, FY2025
7
Total assets, FY2025
$18M

How open it is to new grantees

In FY2024, 40% of the organizations Watttime Corporation funded were first-time grantees, receiving 4% of its grant dollars.

New vs renewed · share of each year

In FY2024, 96% of grant dollars renewed an existing relationship; $109k went to new ones.

50%100%’21’22’23’24
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’21’22’23’24
EnvironmentOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). The earliest year is left-censored: relationships that predate the data read as new. Theme is the grantee’s IRS cause.
The numbers by year
Fiscal yearOrganizations fundedTo those organizationsFirst-time grantees
FY2025still arriving8$3.9M38%
FY20245$2.5M40%
FY20234$2.3M25%
FY20224$1.2M25%
FY20215$1.1M40%
FY20204$500kn/a
100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2020 to 2025.

Environment$11MEducation$74k

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

MI
NY
PA
CA
CO
MO
MD
NC
DC

Top grantees

Largest recipients by total granted, FY2020 to FY2025, and the share of each one’s budget the grants supplied at peak.

GranteeTotal grantedYearsShare of their budget
Rocky Mountain Institute$4,079,30761%
Global Energy Monitor$2,620,56837%
The Earth Genome$1,854,752437%
Ctrees$1,169,86747%
The Foundation for Agricultural Integrit$400,000213%
CarbonPlan$321,31226%
Global Fishing Watch Inc$205,50020%
St Louis University$197,85910%
Duke University$174,97310%
Johns Hopkins University Applied Physics Laborator$132,5761n/a
Show all 13 grantees
All grantees of Watttime Corporation by total granted
GranteeTotal grantedYearsShare of their budget
Rocky Mountain Institute$4,079,30761%
Global Energy Monitor$2,620,56837%
The Earth Genome$1,854,752437%
Ctrees$1,169,86747%
The Foundation for Agricultural Integrit$400,000213%
CarbonPlan$321,31226%
Global Fishing Watch Inc$205,50020%
St Louis University$197,85910%
Duke University$174,97310%
Johns Hopkins University Applied Physics Laborator$132,5761n/a
Carnegie Mellon University$120,00010%
Michigan State University$108,2712n/a
World Resources Institute$100,00010%

Where it is load-bearing

Watttime Corporation supplied at least a quarter of the budget for 1 of its grantees at some point. The chart plots its 11 largest grantees; load-bearing ones sit top left.

25%50%75%100%$10M$100Mgrantee revenue →↑ funder's share of their budgetRocky Mountain Institute: $4,079,307 over 6y, 0.9% of budgetGlobal Energy Monitor: $2,620,568 over 3y, 6.5% of budgetThe Earth Genome: $1,854,752 over 4y, 37% of budgetCtrees: $1,169,867 over 4y, 6.8% of budgetThe Foundation for Agricultural Integrit: $400,000 over 2y, 13% of budgetCarbonPlan: $321,312 over 2y, 6.4% of budgetGlobal Fishing Watch Inc: $205,500 over 2y, 0.2% of budgetSt Louis University: $197,859 over 1y, 0.0% of budgetDuke University: $174,973 over 1y, 0.0% of budgetCarnegie Mellon University: $120,000 over 1y, 0.0% of budgetWorld Resources Institute: $100,000 over 1y, 0.0% 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 11.

Compare Watttime Corporation with peer funders

About Watttime Corporation

How much does Watttime Corporation give?
Watttime Corporation reported 8 itemized grants totaling $3,897,849, out of $5,130,937 in total grant expense reported on the return in its FY2025 IRS filing. It funded between 4 and 5 organizations a year over FY2020 to FY2024.
What does Watttime Corporation fund?
By grant dollars over FY2020 to FY2025, its largest causes are Environment (99%), Education (1%).
Who are Watttime Corporation's largest grantees?
By total granted over FY2020 to FY2025: Rocky Mountain Institute ($4.1M), Global Energy Monitor ($2.6M), The Earth Genome ($1.9M).
Does Watttime Corporation fund new organizations?
In FY2024, 40% of the organizations it funded were first-time grantees.
Where is Watttime Corporation based?
Watttime Corporation is based in CA.

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 13 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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