Private Foundation

CALDERA FOUNDATION

CALDERA FOUNDATION, of VINEBURG, CA, is a Private Foundation tracked in Imperigo's IRS 990 database. The 2025 filing shows $631K in revenue, $638K in expenses, $10.4M in total assets. IRS filings disclose 97 grants awarded by this foundation, totaling roughly $3.6M.

EIN: 472387065 VINEBURG, CA Private Grantmaking Foundations NTEE: T20 Latest filing: 2025
Total Revenue$631K
Total Expenses$638K
Total Assets$10.4M
Grants Given97
Grant Total$3.6M
Filing Years2020–2025

Sample Grants Given

PLOUGHSHARES FUND
SAN FRANCISCO, CA · 2024
FINANCIAL SUPPORT
$100,000
INDIVISIBLE CIVICS ENGAGEMENT
SAN FRANCISCO, CA · 2024
FINANCIAL SUPPORT
$50,000
ROCKY MOUNTAIN INSTITUTE
BASALT, CO · 2024
FINANCIAL SUPPORT FOR ROCKY MOUNTAIN INSTITUTE
$50,000
ISSUE ONE
WASHINGTON, DC · 2024
FINANCIAL SUPPORT
$50,000
PACIFIC INSTITUTE
OAKLAND, CA · 2024
FINANCIAL SUPPORT
$50,000

Showing up to 5 of 97 total records — full history available with membership.

Officers & Directors

PRESIDENT Margaret G Boyer
Sec. &Treasurer Peter S Boyer

Officer compensation and complete director data available with membership.

Top Grant Purposes

FINANCIAL SUPPORT
$2,758,000 79 grants
FINANCIAL SUPPORT FOR ROCKY MOUNTAIN INSTITUTE
$378,000 5 grants
FINANCIAL SUPPORT FOR PROJECT DRAWDOWN
$200,000 3 grants
FINANCIAL SUPPORT FOR PACIFIC FOREST TRUST
$75,000 3 grants
FINANCIAL SUPPORT FOR ISLAND PRESS
$58,000 3 grants

Financial Trends

Year Revenue Expenses Assets
2025 $631K $638K $10.4M
2024 $288K $534K $9.7M
2023 $78K $668K $8.9M
2021 — — $8.2M
2020 $291K $595K $8.2M

Between 2020 and 2025, reported annual revenue grew from $291K to $631K (+117%), with total assets most recently reported at $10.4M.

Interactive year-over-year charts and full filing details available with membership.

Grant Geography

Grants from this foundation were reported to recipients in CA, CO, DC, IN, KY, MA, and 4 other states.

CACODCINKYMAMIMTNCNJ

Full geographic grant map with state-by-state breakdown available with membership.

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