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.
Watttime Corporation at a glance
In short: Watttime Corporation gave $3.9M across 8 grants in 2025 (avg $487K), mostly in California. Source: 2025 IRS Form 990.
- Annual giving (2025)
- $3,897,849
- +56.6% vs 2024
- Grants made (2025)
- 8
- +60.0% vs 2024
- Average grant
- $487,231
- -2.1% vs 2024
- Median grant
- $186,416
- Total assets
- $17,572,422
- +62.6% vs 2024
- Primary geography
- California (54% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990, 2025 View filing
Data from IRS Form 990, 2025; updated September 2026.
Who Watttime Corporation funds
How this funder distributes its grants
Top Recipients
Top 8 recipients in 2025
The largest 2025 recipient was Global Energy Monitor ($1.7M). Together the top 8 received $3.9M.
Grant Size Distribution
26 grants across all recorded years
The most common grant size was in the $100–250K range: 8 grants of 26 (31%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2025 grant dollars across all 8 itemized grants.
States
Cities
How Watttime Corporation gives
- Giving grew 235% from 2022 to 2025. Method
From the foundation's IRS Form 990 filings. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2025, annual grant giving ranged from $500K (2020) to $3.9M (2025). In 2025 it made 8 grants totaling $3.9M.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Global Energy Monitor Covina, CA | Climate Trace | $1,668,890 |
| Rocky Mountain Institute Boulder, CO | Climate Trace | $1,111,244 |
| CTREES Pasadena, CA | Climate Trace | $420,367 |
| Saint Louis University - School of Science and Engineering St. Louis, MO | Climate Trace | $197,859 |
| Duke University Durham, NC | Climate Trace | $174,973 |
| Global Fishing Watch Inc Washington, DC | Climate Trace | $170,500 |
| Carnegie Mellon University Pittsburg, PA | Climate Trace | $120,000 |
| Michigan State University East Lansing, MI | Climate Trace | $34,016 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Net Investment Income |
|---|---|---|---|---|---|---|
| 2025 | $17,572,422 | $16,446,600 | $18,109,740 | $3,897,849 | 8 | $44,515 |
| 2024 | $10,805,414 | $21,292,468 | $16,782,583 | $2,488,841 | 5 | $80,593 |
| 2023 | $5,784,742 | $12,087,174 | $12,462,010 | $2,298,951 | 4 | $31,392 |
| 2022 | $7,163,583 | $13,336,081 | $11,987,727 | $1,163,048 | 4 | — |
| 2021 | $5,558,811 | $8,951,529 | $6,894,710 | $1,136,296 | 5 | $15,383 |
| 2020 | $3,146,793 | $5,134,350 | $3,582,003 | $500,000 | 4 | $1,218 |
| 2019 | $1,377,078 | $1,614,370 | $1,446,115 | — | — | $192 |
About Watttime Corporation
Based on IRS filings
Watttime Corporation is a public charity focused on Science & Technology, based in Oakland, CA. IRS filing data is available from 2019 through 2025. As of 2025, the organization holds $17.6M in total assets. In 2025, it awarded 8 grants totaling $3.9M. Net investment income was $45K.
Focus Areas
Leadership & Key People
Officers and directors from IRS filings
Watttime Corporation is led by Lynn Thoman, Chair since 2025 (on filings since 2021); 8 of 10 officers listed in 2025 are compensated.
Officers on the 2025 filing
Lynn Thoman
Chair
Board Chair → Treasurer, 2024
Treasurer → Chair, 2025
On filings since 2021
2 hrs/week
No compensation reported
Laura Cirincione
Director of Part
Director of Partnerships → Director of Part, 2024
On filings since 2023
40 hrs/week
$179K (2023) → $224K (2025)
Scott Moura
Director
On filings since 2023
2 hrs/week
No compensation reported
Gavin McCormick
Executive Di
Executive Director → Executive Di, 2024
On filings since 2019
40 hrs/week
$101K (2019) → $208K (2025)
William Joel Cofield
Senior Data Scie
Data Scientist → Senior Data Scientist, 2023
Senior Data Scientist → Senior Data Scie, 2024
On filings since 2021
40 hrs/week
$131K (2021) → $244K (2025)
Jeremy Freeman
Software Eng
Software Engineer → Software Eng, 2024
On filings since 2022
40 hrs/week
$123K (2022) → $239K (2025)
Sam Koebrich
Ppal Enginee
Data Scientist → Ppal Enginee, 2024
On filings since 2023
40 hrs/week
$164K (2023) → $211K (2025)
Alexandria Shuster
Secretary
On filings since 2024
40 hrs/week
$109K (2024) → $123K (2025)
Sasha Shahidi
CFO & Treasurer
On filings since 2024
40 hrs/week
$129K (2024) → $146K (2025)
Eric D. Nguyen
Chief Produc
New on the 2025 filing
40 hrs/week
$215K (2025)
Former officers (12)
- Former: Jordan Lewis (2024) — Senior Data Engi
- Former: Jon Creyts (2019–2023) — Board Chair
- Former: Stephanie Khurana (2019–2023) — Director
- Former: Hannes Koenig (2023) — Senior Machine Learning Engineer
- Former: Kathryn Ryan (2023) — COO
- Former: Heather McCreery (2019–2022) — Treasurer
- Former: James Mandel (2019–2022) — Board Chair
- Former: Katie Ryan (2021–2022) — COO
- Former: Laura Corso (2021–2022) — Director of Partnerships
- Former: Nicholas Amuchastegui (2021–2022) — Director of Engineering
- Former: Melanie Richard (2019–2021) — Secretary
- Former: Melanie Hmielowski (2020) — Secretary
Data from IRS Form 990 filings, 2019–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Compensation Overview
From 2025 IRS filing
The highest reported compensation on the 2025 filing was $244K, to William Cofield (Sr Data Scie). 8 officers or directors reported compensation on that filing.
Frequently asked questions about Watttime Corporation
How much does Watttime Corporation give each year?
Watttime Corporation gave $3.9M across 8 grants in 2025, according to its 2025 IRS Form 990. In 2024 it gave $2.5M across 5 grants.
What is Watttime Corporation's typical grant size?
Watttime Corporation's median grant in 2025 was $186,416, and its average grant was $487,231, across 8 grants on its 2025 IRS Form 990.
Where does Watttime Corporation give grants?
Watttime Corporation gives mostly in California: 54% of the grant dollars itemized on its 2025 IRS Form 990 went to recipients there. The next largest states were Colorado (29%) and Missouri (5%).
Does Watttime Corporation give general operating support?
Not in 2025: none of the 8 grants with a stated purpose on Watttime Corporation's 2025 IRS Form 990 were described as general or operating support. Recurring purposes include "Climate Trace" (8 grants).
Who are Watttime Corporation's largest grantees?
Watttime Corporation's largest 2025 grantees include Global Energy Monitor ($1,668,890), Rocky Mountain Institute ($1,111,244) and CTREES ($420,367), according to its 2025 IRS Form 990. Together they received 82% of its itemized 2025 grant dollars.
How large is Watttime Corporation?
Watttime Corporation reported $17.6M in total assets on its 2025 IRS Form 990. Its revenue that year was $16.4M.
What is Watttime Corporation?
Watttime Corporation is a public charity focused on Science & Technology, based in Oakland, CA. It holds $17.6M in total assets as of 2025.
What is Watttime Corporation's EIN?
Watttime Corporation's EIN (Employer Identification Number) is 47-1444637. IRS Form 990 filing data is available on this page for 2019–2025.
Data last updated September 2026. Sourced from IRS Form 990 filings.
Data update history
(7)
When this profile's IRS filing data changed on Grantable
- Updated Form 990 for fiscal year 2020 (received by the IRS May 10, 2021)
- Updated Form 990 for fiscal year 2021 (received by the IRS May 16, 2022)
- Updated Form 990 for fiscal year 2022 (received by the IRS May 15, 2023)
- Updated Form 990 for fiscal year 2023 (received by the IRS May 15, 2024)
- Updated Form 990 for fiscal year 2024 (received by the IRS May 14, 2025)
- Updated Form 990 for fiscal year 2025 (received by the IRS April 7, 2026)
- IRS filings on file for fiscal years 2019–2025
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