Caldera Foundation

Caldera Foundation is a small, closely held family foundation (President Margaret G. Boyer, Secretary/Treasurer Peter S. Boyer, both uncompensated) based in Vineburg, CA, that funds by invitation only — its website states plainly that it 'does not solicit or accept grant proposals.' With roughly $10.4M in assets and total giving that has run between $488,000 and $668,000 in recent full-reporting years (2018, 2019, 2022), Caldera behaves less like a public grants program and more like a venture-style seed funder: it identifies promising organizations early, often before they have scaled fundraising infrastructure, and provides catalytic capital intended to help them attract larger institutional donors later. The foundation's own language — pairing 'intellectual capital and social capital' with financial grants — signals it expects some form of relationship, not just a check. Its 26 tracked grants in the DB snapshot went overwhelmingly to established, professionally run advocacy and research organizations (Ploughshares Fund, Campaign Legal Center, Rocky Mountain Institute, Union of Concerned Scientists) rather than grassroots or unknown groups, and its geographic footprint is concentrated in DC (8 grantees) and CA (10 grantees) — the classic footprint of a funder that moves in national climate-and-democracy policy circles. First-time organizations should not expect to apply; the realistic path in is visibility through Caldera's existing grantee network (e.g., Forward Global's Climate Action Lab, a 400+ member high-net-worth climate donor community) or through direct introduction by a trusted intermediary. Organizations already receiving support from peer funders in the climate-advocacy space, or that show up credibly in the same coalitions as Ploughshares Fund, Climate Central, or Project Drawdown, are best positioned to eventually be 'found' by Caldera. Given the foundation's small size and closed process, grant seekers should treat Caldera as a long-horizon relationship target rather than a near-term application opportunity.

Per the foundation's own typical-grant-size data, awards range from $10,000 to $100,000 with a median of $35,000 and an average of $37,538 across 13 tracked grants. The DB grantee history (26 total grants, $1,035,000 cumulative, average $39,808) shows a similar shape: the largest single commitments were $200,000 total to Ploughshares Fund (two grants) and $120,000 total to Indivisible Civics Engagement (two grants), while the bulk of awards cluster between $10,000 and $50,000. Roughly a third of tracked dollars ($370,000 of $1,035,000, or 36%) went to three organizations — Ploughshares Fund, Indivisible Civics Engagement, and Campaign Legal Center — indicating a foundation willing to concentrate meaningful capital in a small number of trusted partners rather than spreading it thin. By geography, California (10 grantees) and Washington DC (8 grantees) account for 18 of 26 tracked grants, reflecting Caldera's ties to both its home state's climate and conservation ecosystem and DC-based national policy and advocacy infrastructure; smaller allocations reached MA, NJ, NY, NC, and CO. Total giving has fluctuated significantly year to year in the financial filings: $647,452 in 2018, $595,480 in 2019, effectively $0 reported in 2020 (a filing anomaly or pause), and $667,553 in 2022 — a pattern consistent with a small family foundation whose payout is tied to investment performance (net investment income ranged from $105,787 to $237,436 across these years) rather than a fixed annual budget. Web sources citing the foundation's most recent Form 990 report approximately $410,000 in grants across 13 awards in fiscal year 2024, suggesting a somewhat reduced payout compared to the 2018-2022 average of roughly $600,000/year. Total assets have grown modestly, from $8.2M (2019-2020) to $10.4M currently.

Caldera Foundation sits among a cluster of small, closely held family foundations with almost identical asset bases (~$10.4M) but very different focus areas, underscoring how much variation exists even within similarly sized Philanthropy & Grantmaking-classified funders.

Unlike its listed peers, whose public IRS classification data reveals little beyond an asset figure (no disclosed website, mission, or giving pattern in this dataset), Caldera has a public-facing website, an articulated five-pillar giving framework (AIR/EARTH/WATER/FIRE/PEOPLE), and a track record of funding nationally recognized organizations like Ploughshares Fund and Campaign Legal Center. This makes Caldera comparatively transparent for a family foundation of its size, even though its actual application process remains closed — grant seekers researching the peer set will find Caldera far easier to profile and target strategically than the other five foundations, none of which have discoverable websites or mission statements in this data.

Caldera's public grants page shows several six-figure awards attributed to the 2025-2026 cycle, including $100,000 grants each to Rule of Law Project, Campaign Legal Center, and Ploughshares Fund, alongside a $10,000 grant to Greenlight America and multiple $50,000-level awards — consistent with the foundation's historical median grant size of $35,000-$40,000 but with a noticeably heavier concentration at the $100,000 tier than in the 2018-2022 grantee data captured in this platform's records. Third-party 990 trackers (Instrumentl, Cause IQ) report the foundation's most recently filed fiscal year (2024) showed $410,000 in total grants across 13 awards, which if accurate would represent a decline from the $600K+ giving years of 2018, 2019, and 2022 — though a $0 reported figure for 2020 in this platform's own financial history suggests some year-to-year filing irregularity that should be treated cautiously rather than read as a hard trend. No leadership changes were identified; President Margaret G. Boyer and Secretary/Treasurer Peter S. Boyer, both uncompensated, remain the foundation's listed officers per IRS filing data, consistent with a closely held family structure rather than a staffed institution. No new program launches or major strategic announcements were found via web search beyond the foundation's own site restating its five-category giving framework (AIR, EARTH, WATER, FIRE, PEOPLE) and its continued emphasis on democracy protection and nuclear non-proliferation as climate-adjacent priorities. Grant seekers should note that search results for "Caldera Foundation" are heavily polluted by unrelated organizations of the same name — a blockchain infrastructure project (Caldera/ERA token), an Oregon arts and education nonprofit (Caldera Arts), and the MITRE Caldera cybersecurity platform now housed at the Apache Software Foundation — none of which are connected to this Vineburg, CA climate and democracy funder.

Caldera Foundation does not accept unsolicited grant proposals, has no application portal, LOI form, or public contact email for prospective grantees, and its website states this policy explicitly. Any 'application tips' must therefore focus on visibility and relationship-building rather than proposal mechanics. First, organizations should recognize that Caldera's actual grantee list functions as a map of its trust network: Ploughshares Fund, Campaign Legal Center, Rocky Mountain Institute, Project Drawdown, Union of Concerned Scientists, and Climate Central are all large, well-established national organizations, suggesting Caldera prioritizes organizations with institutional credibility and track records over early-stage grassroots groups despite its stated 'seed funding' philosophy — in practice its median $35,000 grant is more a supplemental gift to an established player than true seed capital for a startup nonprofit. Second, the foundation's stated interest in providing 'intellectual capital and social capital' alongside money suggests it values organizations that can engage its principals (the Boyer family) as thought partners, not just check recipients — participation in shared convenings like Forward Global's Climate Action Lab (a 400+ member network of climate-focused high-net-worth donors) is a realistic, documented pathway into Caldera's orbit. Third, because Caldera's giving spans five stated categories (AIR/democratic engagement, EARTH/environmental protection, WATER/resilience, FIRE/clean energy, PEOPLE/social justice), organizations working at the intersection of climate and democracy — as Campaign Legal Center and Indivisible Civics Engagement do — appear to be currently favored, an important signal for positioning. Common mistakes to avoid: sending cold LOIs or proposals (they will not be read per the foundation's own policy), assuming this is the crypto/blockchain 'Caldera' or the Oregon arts nonprofit 'Caldera Arts' (both unrelated organizations that dominate generic search results), and treating the foundation as a first-check funder — its concentration of dollars in $100,000 grants to a handful of established groups (Ploughshares Fund, Rule of Law Project, Campaign Legal Center) shows it favors deepening existing relationships over funding new, unproven organizations.