Buck Foundation

Buck Foundation is a small, hands-on family foundation, not a large staffed institution — treat it accordingly. Founded in 1986 in Evergreen/Denver, CO, it has distributed over $7.7 million in grants to date and expanded its mission in 2021 from peace and social justice alone to also include climate action. The board is almost entirely family: Christopher Buck (Chair), David D. Buck (Treasurer), Diane M., Zoe, Douglas, Leland, Nina Bambina, and Andrew Buck, plus Dettmann family members (Samuel as Secretary, Carol as Vice-Chair, Jessica, Nicholas) and Drew Truslove — all uncompensated. Executive Director Erika Church is the sole staff point of contact, and her compensation has grown steadily ($80,192 in 2020 to $101,115 in 2023), reflecting a maturing but still lean program.

The most important strategic fact for applicants: as of the foundation's current website, Buck states it is 'not currently accepting new Letters of Inquiry' and instead proactively identifies and invites potential grantees. This is a real shift from the process described in its own IRS filings (an LOI due January 15, full proposal due March 15, with a Submittable form emailed by the Executive Director to qualified applicants). In practice, this means unsolicited applications are unlikely to be reviewed today — the reliable path in is relationship-building with Erika Church or a board member, visibility within Colorado's social-justice and climate networks, and a track record in one of the foundation's two issue buckets.

Favored grantees are small-to-midsize Denver Metro 501(c)(3)s and NGOs doing frontline service delivery or systemic-change advocacy: housing and homelessness (La Puente, Bayaud Enterprises, Village Exchange Center, Denver Homeless Out Loud), immigrant rights (Coloradans for Immigrant Rights, Rocky Mountain Immigrant Advocacy Network, Centro Humanitario), and climate/environmental justice (GRID Alternatives Colorado, 350 Colorado, Quivira Coalition, Western Regional Advocacy Project). First-time applicants should understand this as a trust-based, relationship-first funder that renews partners it already knows rather than a competitive open-RFP funder.

Buck Foundation's typical grant, per the foundation's own IRS-derived data, runs $1,000 to $30,000 with a median of $10,000 and an average of $11,191 across a 43-grant sample. Public 2025 reporting shows the range widening to roughly $1,000-$45,000 with an average near $14,000-$20,000 — a real step up from the historical median, consistent with the foundation's stated 2025 grant budget of $649,000, up sharply (+47.5%) from $440,000 in 2024.

Across the five most recent fiscal years in the data (2019-2023), total giving peaked at $839,516 in 2021 and settled at $665,038 in 2023, while total assets held steady in the $10.4M-$11.2M range (current asset_amount: $11,859,174). Grants paid in FY2023 were $425,190 against $665,038 in total giving — the gap reflects program and administrative costs, including officer compensation, which rose from $102,731 (2019) to $132,015 (2023). Buck is a non-operating private foundation funded entirely by investment returns: contributions_received has been $0 in every year since 2019, and net investment income was $436,715 in 2023. Its grantmaking pool is therefore a function of endowment performance and the 5% minimum payout rule, not active fundraising.

By purpose, nearly every tracked grant — effectively 100% of the top-50 grantee list — is coded GENERAL OPERATING SUPPORT; Buck does not fund discrete projects. Multi-year renewal is the norm: top recipients such as St Francis Social Services/House of Welcome ($115,000 across 5 grants), La Puente Home ($113,000/5), Village Exchange Center ($110,000/5), and Bayaud Enterprises ($110,000/5) each received support across five consecutive cycles. Geographically, the tracked grantee-state data shows overwhelming Colorado concentration (114 of the counted state-level grants) versus single digits elsewhere (CA 11, HI 11, WI 11, IN 7, MN 3, NM 3, AZ 2, OR 2, PA 2) — non-Colorado grants generally trace to board family ties rather than open competition.

Buck Foundation is by far the smallest of these Colorado funders by both assets and annual giving — roughly one-fifth the size of Anschutz and a fraction of Gates' scale — and it is the only one of the four operating on a fully invitation-only basis rather than a published open or LOI-based process. That combination (small check size, tight geographic focus, closed intake) means Buck rewards deep local relationship investment over broad application volume; organizations already positioned within Anschutz's, Gates', or Denver Foundation's grantee networks are well placed to seek a warm introduction into Buck's circle.

The clearest recent development is the foundation's 2021 mission expansion, when it added climate action and greenhouse-gas reduction alongside its founding focus on peace and social justice — a shift still visible in the 2025 grantee cohort's two clean buckets. The 2025 partner list (per the foundation's own grantmaking page) includes Peace & Social Justice grantees 9to5 Colorado, Coloradans for Immigrant Rights, the Colorado Nonprofit Association & Lawyers Committee, Asylum Seekers Centre, BuildStrong Academy, Housekeys Action Network, La Puente, the Newcomers Fund, RMEOC Drivers Coop, Rocky Mountain Immigrant Advocacy Network, So All May Eat, Street Fraternity, Street Side Medics, Urban Seeds, and Denver Metro Tenants Union; Climate Action grantees include 350 Colorado, 350 Montana, BlueGreen Alliance Colorado, the Colorado Agrivoltaic Learning Center, Conservation Colorado, COSSA Institute, Greenlight America, Cultivando, Denver Food Rescue, GRID Alternatives Colorado, Groundwork Denver, High Country Conservation Center, Lock the Gate, Lyra Colorado, Quivira Coalition, and the Alliance for Collective Action.

The foundation's total grant budget stepped up materially, from $440,000 in 2024 to $649,000 in 2025 (+47.5%), with average award size rising toward $20,000. Leadership appears stable — Erika Church continues as Executive Director and Christopher Buck as Chair, with no reported turnover. No major press coverage, capital announcements, or leadership transitions surfaced in general news search; the most consequential recent change for grant seekers is procedural, not programmatic: the foundation's site now states it is not accepting new unsolicited Letters of Inquiry, a departure from the LOI-based cycle described in its own historical IRS filings.

Because Buck Foundation's website explicitly states it is not currently accepting unsolicited Letters of Inquiry, the single most important tip is: do not cold-submit. The foundation identifies and invites grantees proactively, so the realistic path in is relationship-building — get visible within Colorado's social-justice and climate advocacy networks (Philanthropy Colorado, the Colorado Nonprofit Association, shared coalitions with existing grantees like 9to5 Colorado or Conservation Colorado) and seek a warm introduction to Executive Director Erika Church (echurch@thebuckfoundation.org) rather than a formal cold application.

When you do get a conversation or invitation, lead with general operating support framing, not a project budget — essentially every tracked Buck grant purpose is GENERAL OPERATING SUPPORT, so the pitch should center on organizational sustainability and mission delivery, not a discrete initiative. Align cleanly with one of the foundation's two buckets — Peace & Social Justice (housing/homelessness, immigrant rights, systemic equity) or Climate Action (emissions reduction, clean energy, climate policy/advocacy) — rather than straddling both; the grantee data shows organizations are clearly sorted into one lens or the other.

Size requests realistically: the 2025 average award is roughly $20,000, with a historical range of $1,000-$45,000 and most awards clustering $10,000-$20,000. Multi-year cumulative relationships (up to five consecutive annual grants for top partners) are the norm, so position a first grant as the start of an ongoing relationship rather than a one-time need. Avoid the foundation's explicit exclusions entirely: individuals, scholarships, endowments, capital campaigns, debt retirement, retroactive funding, event/conference funding, media production, political or religious activity, and private/religious schools — any of these will disqualify an inquiry outright. Geographic fit matters: emphasize Denver Metro/Colorado impact specifically, since non-Colorado grants in the data correlate with board family ties (Hawaii, Wisconsin) rather than open eligibility. Finally, if historical LOI/proposal deadlines (January 15 / March 15) resurface, confirm current status directly with Erika Church before investing significant preparation time, since the live website and the IRS filing description currently disagree.