Science & Technology (U12) 990 on File

CLIMATEWORKS FOUNDATION

EIN: 26-2303250 · SAN FRANCISCO, CA 94104-3123 · United States · FY 2024 Data

3 out of 5 57 / 100 Based on 2+ years of filings

Financial strength (30%) 83/100

Reliability (20%) 50/100

Effectiveness (25%) 88/100

Impact (25%) No data yet

Financial data: FY 2024 · Scored 9/13/2026

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CharityAI™ Score

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Financial Overview — FY 2024

$350.6M

Total Revenue

$317.3M

Total Expenses

$441.4M

Net Assets

189

Employees

Revenue Sources

Expense Breakdown

Program Expense Ratio 93.9%

Fundraising Efficiency N/A

Operating Reserve 16.69x

Liability-to-Asset 17.2%

Revenue Diversification 95.5%

Executive Compensation $4.9M

Compared with Peers

FY 2024

Compared with 32 similar organizations (United States, Science & Technology, $100M and over in expenses), FY 2024.

This organization Middle half of peers (P25–P75) Peer median

Ratio	This org	Peer median	Position (P10 → P90)
Program expense ratio Program expenses / total expenses · higher is better	93.9%	88.7%	P10P90	Above median
Admin expense ratio Management and general / total expenses · lower is better	5.0%	11.5%	P10P90	Above median
Fundraising expense ratio Fundraising expenses / total expenses · lower is better	1.1%	0.0%	P10P90	Bottom quarter
Operating reserve Months of expenses covered by net assets · higher is better	16.7 mo	6.5 mo	P10P90	Top quarter
Liabilities to assets Total liabilities / total assets · lower is better	17.2%	42.4%	P10P90	Top quarter
Revenue concentration Share of revenue from the largest source · lower is better	95.5%	95.6%	P10P90	Above median
Revenue growth Year over year revenue growth	31.6%	11.6%	P10P90
Expense growth Year over year expense growth	20.2%	10.3%	P10P90
Surplus margin Surplus as a share of revenue	9.5%	1.0%	P10P90

Financial History

Year	Revenue	Expenses	Net Assets	Program %	Staff
2024	$350.6M	$317.3M	$441.4M	93.9%	189
2023	$266.5M	$264.0M	$408.2M	93.3%	180
2022	$330.5M	$355.5M	$402.3M	96.6%	164
2021	$366.2M	$180.1M	N/A	—	116

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Organization Details

EIN: 26-2303250
State: CA
City: SAN FRANCISCO
ZIP: 94104-3123
Classification: U12
Category: Science & Technology
Rating: 3★
Coverage: A
Last Updated: Aug 2026
Form 990: On File

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CharityAI™ rates charities from 0 to 100 using public filings (IRS Form 990 and the equivalent registries outside the US) together with the information the charity itself provides on DonationX. Ratings are recalculated every quarter, without human bias, and shown as stars.

Four pillars

Financial strength30%

Program expense ratio, fundraising efficiency, operating reserves, liabilities and revenue diversification, compared with similar organizations.

Reliability20%

Standing with the registry, filing history, verification and how complete the profile is.

Effectiveness25%

How much goes to programs and how consistently the organization delivers them.

Impact25%

The outcomes the charity reports on DonationX: people served, cost per service and results.

Stars

★★★★★ 80–100 ★★★★☆ 60–79 ★★★☆☆ 40–59 ★★☆☆☆ 20–39 ★☆☆☆☆ 1–19

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