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Rust Foundation is a private trust based in PITTSBURGH, PA. The foundation received its IRS ruling in 1952. The principal officer is James O Rust. It holds total assets of $3.4M. Annual income is reported at $592K. Total assets have decreased from $4.4M in 2011 to $3.4M in 2023. The foundation is governed by 8 officers and trustees. Tax records are available from 2016 to 2023. According to available records, Rust Foundation has made 307 grants totaling $1.3M, with a median grant of $1K. The foundation has distributed between $289K and $422K annually from 2020 to 2023. Grantmaking activity was highest in 2022 with $422K distributed across 102 grants. Individual grants have ranged from $500 to $289K, with an average award of $4K. The foundation has supported 202 unique organizations. The foundation primarily supports organizations in Pennsylvania, Tennessee, Virginia, which account for 46% of all grants. Grantmaking reaches organizations across 30 states. Contributions to this foundation are tax-deductible.
Critical data note first: the financial and grantee records behind this profile (EIN 25-6049037, 1305 Parkview Blvd, Pittsburgh, PA, ruled exempt in February 1952) belong to a small private family trust — not the Rust programming-language nonprofit that operates the rustfoundation.org website listed in this record. The trustee roster (Thatcher O. Montgomery as President; R. Mark Rust, James O. Rust, Davis B. Rust, S. Murray Rust III, J. Mead Rust Jr., John R. Rust, and David C. Gilles, all uncompensated) and the fact that all 307 tracked grants are coded simple 'GENERAL PURPOSE' confirm this is a closed, relationship-driven family vehicle, not a programmatic institutional funder. Grant seekers researching Rust the programming-language ecosystem should direct their efforts at the actual Rust Foundation (rustfoundation.org, led by Executive Director Dr. Rebecca Rumbul, board-chaired by Microsoft's Nell Shamrell-Harrington), which is funded by Platinum corporate members including Microsoft, Google, AWS, Huawei, Arm, and OpenAI rather than an endowment payout, and which runs its Maintainers Fund and past Community Grants Program through grants@rustfoundation.org. That organization does not accept unsolicited general-operating requests from outside its security, infrastructure, and maintainer-support scope, and staff, officers, directors, and employees of Member organizations are ineligible for its funding programs. Separately, the 990 filer whose numbers populate this record shows every hallmark of a single-family trust distributing to institutions with a personal trustee connection: alma maters (Sweet Briar College, Hillsdale College, Carleton College), family churches (St. Andrew's Episcopal, Calvary Episcopal, New York Avenue Presbyterian), and hometown Pittsburgh civic organizations (Carnegie Museums of Pittsburgh, Steel City Squash, Miracle League of Western PA). There is no discoverable application_process, application_form_url, or grants_page_url in the underlying data, and no news coverage exists for this trust in any of the four searches conducted. Nonprofits without an existing trustee relationship should not expect a cold outreach to this specific 990 filer to succeed; the realistic play for most grant seekers reading this profile is the software Rust Foundation instead, approached on its own published terms.
Two distinct funding profiles are visible here. For the 990 filer (EIN 25-6049037): total giving has declined from $512,323 in FY2022 to $384,103 in FY2023, a 25% year-over-year drop, continuing a slower multi-year slide from $426,236 (FY2021) and $370,466 (FY2020). Grants paid have hovered in a $269,250-$421,500 band across the 2011-2023 filings on file, funded almost entirely by net investment income ($176,310 in FY2023) rather than new contributions (just $2,740 received in FY2023, and $0 in several other years) — this is a spend-down trust, not an actively fundraised one, and its asset base has fallen from $4,440,570 (2011) to $3,372,861 (2023), a 24% decline over twelve years. Across 307 tracked grants totaling $1,347,000, the average award is $4,388, though this is skewed by one outlier: a single $288,500 entry recorded as 'See Attached' (likely an aggregated 990 schedule line rather than one grantee), which alone accounts for over a fifth of total dollars tracked. Excluding that outlier, individual named recipients range from roughly $4,000 (Poshard Foundation for Abused Children, Epilepsy Foundation) up to $67,500 cumulative across three grants to the Ellis School, with most repeat recipients receiving $4,000-$36,500 spread over two-to-three grants in the sample. Geographic distribution by grant count tracks trustee residences rather than a programmatic strategy: Pennsylvania leads with 75 grants (Pittsburgh home base), followed by Virginia (47), New York (25), Ohio (21), Tennessee (20), Washington DC (18), Connecticut (16), Maine (11), Michigan (9), and California (8). By contrast, the software Rust Foundation's funding model is entirely different and not captured in these 990 figures: it runs on corporate membership dues (Platinum tier held by Microsoft, Google, AWS, Huawei, Arm, and OpenAI) plus in-kind infrastructure donations from Fastly, GitHub, Datadog, and JetBrains, with historical Community Grants stipends of $1,500/month plus a $4,000 travel-training-equipment allotment, and Security Initiative funding that included a disclosed $460,000 grant from OpenSSF's Alpha-Omega Initiative in 2022. No comparable dollar figures for the software Foundation's current-year grant volume were disclosed on the pages reviewed.
The most useful comparison here is not against unrelated peer foundations (none were matched in our database) but between the two organizations sharing the 'Rust Foundation' name, since conflating them is the single biggest risk for anyone using this profile.
| Foundation | Assets | Annual Giving | Primary Focus | Application |
|---|---|---|---|---|
| This 990 filer (EIN 25-6049037, Rust family trust, Pittsburgh PA) | $3.37M (FY2023) | $384,103 (FY2023) | Unrestricted general-purpose gifts to trustee-connected schools, churches, and civic groups | Closed/relationship-only — no LOI, portal, or published process found |
| Rust Foundation (rustfoundation.org, separate nonprofit) | Not disclosed in the 990 data reviewed for this profile | Not disclosed here; funded by corporate memberships, not an endowment payout | Rust programming-language ecosystem: security, infrastructure, interop, maintainer support | Historically open Community Grants/Fellowship tracks; now centered on the invitation-oriented Maintainers Fund (contact grants@rustfoundation.org) |
| Typical small US family foundation (<$5M assets, per general IRS/Foundation Center benchmarks) | $1M-$5M | Roughly 5-6% of assets annually | Set by trustee interest, usually local/regional | Usually closed or invitation-only |
| Large member-funded open-source foundation (e.g., Linux Foundation, illustrative structural peer) | Not a comparable balance-sheet model — revenue is membership-driven, not asset-payout-driven | Project-based allocations tied to member dues | Multi-project open-source infrastructure | Project- and member-driven, not a public unsolicited-grant program |
The 990 filer's asset size and giving pattern place it squarely in the small-family-foundation category — modest, geographically dispersed, and governed entirely by unpaid family trustees — while the software Rust Foundation operates on a corporate-membership model structurally closer to organizations like the Linux Foundation than to any private family trust. Grant seekers should pick their target based on which profile actually matches their proposal, not the shared name.
For the software Rust Foundation, three developments stand out in the past year. On November 5, 2025, it announced the Maintainers Fund, a new mechanism aimed at giving Rust maintainers consistent, transparent, long-term compensation rather than one-off stipends; as of the announcement, the Foundation said it would spend subsequent months defining the fund's structure and securing contributions. On January 27, 2026, it published its 2025 Annual Report together with a 2026-2028 Strategic Plan, which highlighted movement toward adopting the TUF (The Update Framework) protocol for Rust's release process and crates.io, with an experimental out-of-tree deployment slated to begin in 2026. In June 2026, the Foundation launched Rust Foundation Trusted Training (RFTT), a formal accreditation for third-party Rust training providers, naming a five-organization founding cohort: Mainmatter, Integer 32, Wyliodrin, Doulos, and Ferrous Systems. Leadership is Dr. Rebecca Rumbul as Executive Director/CEO, with Microsoft's Nell Shamrell-Harrington chairing a board split between Member Directors and Project Directors elected via the Rust Project Leadership Council. For the actual 990 filer behind this profile's financial data, no news coverage, press mentions, or public statements were found in any of the four searches conducted — consistent with a small, unpaid-trustee family trust that does not seek public visibility. Its most recent filing on record here is fiscal year 2023, showing total giving of $384,103, down from $512,323 the prior year.
Two very different playbooks apply depending on which organization a reader actually means. For the software Rust Foundation (rustfoundation.org): confirm eligibility before drafting anything — Foundation staff, officers, and directors cannot apply to any Foundation grant program, and employees of current Member organizations are also excluded; if there is any ambiguity about your employer's membership status, email grants@rustfoundation.org first rather than submitting and finding out later. Historical Fellowship applications required selecting one goal from a published list aligned to Rust Project roadmap priorities — read that list closely before applying rather than writing a generic proposal, since the selection committee is explicitly instructed to judge without outside context. Applicants must be over 18 at the time of any award and must be able to receive a financial transfer from the United States; international applicants should verify this logistics point early. Do not attempt to contact or lobby selection-committee members directly — the Foundation states this results in automatic rejection, a stricter stance than most grantmakers publish. Given the shift toward the Maintainers Fund (announced November 2025) and away from the older $1,500/month Community Grants stipend model, expect fewer discrete one-off award cycles and more emphasis on sustained, multi-month maintainer relationships — position a request as ongoing infrastructure or security work tied to the 2026-2028 strategic plan's security and interoperability priorities rather than as a single event or one-time project. For the 990 filer whose EIN and financials populate this specific database record: there is no published application channel, deadline, or portal anywhere in the data reviewed (application_process, application_form_url, and grants_page_url are all empty), and every one of the 307 tracked grants is coded simple 'GENERAL PURPOSE' with no evidence of a competitive review process. The realistic path in, if one exists at all, runs through an existing relationship with one of the named trustees or with an institution already in the recipient list (Pittsburgh-area schools and museums, Sweet Briar/Hillsdale/Carleton/Drake universities, Episcopal and Presbyterian congregations in the trustees' home cities) — cold, unsolicited outreach to this trust has no documented track record of success in the data available.
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No program descriptions are available for this foundation. Many private foundations report program activities in their annual 990-PF filings — check the Tax Filings section below for the most recent filing.
Two distinct funding profiles are visible here. For the 990 filer (EIN 25-6049037): total giving has declined from $512,323 in FY2022 to $384,103 in FY2023, a 25% year-over-year drop, continuing a slower multi-year slide from $426,236 (FY2021) and $370,466 (FY2020). Grants paid have hovered in a $269,250-$421,500 band across the 2011-2023 filings on file, funded almost entirely by net investment income ($176,310 in FY2023) rather than new contributions (just $2,740 received in FY2023, and $0 in .
Rust Foundation has distributed a total of $1.3M across 307 grants. The median grant size is $1K, with an average of $4K. Individual grants have ranged from $500 to $289K.
Critical data note first: the financial and grantee records behind this profile (EIN 25-6049037, 1305 Parkview Blvd, Pittsburgh, PA, ruled exempt in February 1952) belong to a small private family trust — not the Rust programming-language nonprofit that operates the rustfoundation.org website listed in this record. The trustee roster (Thatcher O. Montgomery as President; R. Mark Rust, James O. Rust, Davis B. Rust, S. Murray Rust III, J. Mead Rust Jr., John R. Rust, and David C. Gilles, all uncom.
Rust Foundation is headquartered in PITTSBURGH, PA. While based in PA, the foundation distributes grants to organizations across 30 states.
| Name | Title | Compensation | Benefits | Total |
|---|---|---|---|---|
| Thatcher O Montgomery | PRESIDENT | $0 | $0 | N/A |
| R Mark Rust | TRUSTEE | $0 | $0 | N/A |
| J Mead Rust Jr | SECRETARY | $0 | $0 | N/A |
| S Murray Rust Iii | VICE PRESIDENT | $0 | $0 | N/A |
| James O Rust | TRUSTEE | $0 | $0 | N/A |
| John R Rust | TREASURER | $0 | $0 | N/A |
| Davis B Rust | TRUSTEE | $0 | $0 | N/A |
| David C Gilles | TRUSTEE | $0 | $0 | N/A |
Total Giving
$384K
Total Assets
$3.4M
Fair Market Value
$6M
Net Worth
$3.4M
Grants Paid
$304K
Contributions
$3K
Net Investment Income
$176K
Distribution Amount
$288K
Total: $2.4M
Total Grants
307
Total Giving
$1.3M
Average Grant
$4K
Median Grant
$1K
Unique Recipients
202
Most Common Grant
$1K
of 2023 grantees were first-time recipients
| Recipient | Location | Amount | Year |
|---|---|---|---|
| Drake UniversityGENERAL PURPOSE | Des Moines, IA | $12K | 2023 |
| Carleton CollegeGENERAL PURPOSE | Northfield, MN | $2K | 2023 |
| St Andrews Episcopal ChurchGENERAL PURPOSE | Pittsburgh, PA | $56K | 2023 |
| Fields For KidsGENERAL PURPOSE | Larchmont, NY | $25K | 2023 |
| Ellis SchoolGENERAL PURPOSE | Pittsburgh, PA | $22K | 2023 |
| Miracle League Of Western PaGENERAL PURPOSE | Murrysville, PA | $21K | 2023 |
| Calvary Episcopal ChurchGENERAL PURPOSE | Pittsburgh, PA | $19K | 2023 |
| New Hope Church Of ChristGENERAL PURPOSE | Readyville, TN | $10K | 2023 |
| Cannon County SaveGENERAL PURPOSE | Woodbury, TN | $10K | 2023 |
| Ability Fitness CenterGENERAL PURPOSE | Leesburg, VA | $10K | 2023 |
| Gleaners Community Food BankGENERAL PURPOSE | Detroit, MI | $8K | 2023 |
| Carlow UniversityGENERAL PURPOSE | Pittsburgh, PA | $6K | 2023 |
| Sweet Briar CollegeGENERAL PURPOSE | Sweet Briar, VA | $6K | 2023 |
| Dartmouth-Hitchcock HealthGENERAL PURPOSE | Lebanon, NH | $5K | 2023 |
| New Canaan County SchoolGENERAL PURPOSE | New Canaan, CT | $4K | 2023 |
| Poshard Foundation For Abused ChildrenGENERAL PURPOSE | Carterville, IL | $4K | 2023 |
| Planned Parenthood Central & Western NyGENERAL PURPOSE | Rochester, NY | $3K | 2023 |
| Theta Chi At Drake University HhfGENERAL PURPOSE | Davenport, IA | $3K | 2023 |
| Chewonki FoundationGENERAL PURPOSE | Wiscasset, ME | $3K | 2023 |
| Hilliard Food Pantry PlusGENERAL PURPOSE | Hilliard, OH | $3K | 2023 |
| American WhitewaterGENERAL PURPOSE | Cullowhee, NC | $3K | 2023 |
| Purdue FoundationGENERAL PURPOSE | Detroit, MI | $3K | 2023 |
| International Rescue CommitteGENERAL PURPOSE | Albert Lea, MN | $3K | 2023 |
| Woodberry Forest SchoolGENERAL PURPOSE | Woodberry Forest, VA | $3K | 2023 |
| Carnegie Museums Of PittsburghGENERAL PURPOSE | Pittsburgh, PA | $3K | 2023 |
| Maine Coast Heritage TrustGENERAL PURPOSE | Topsham, ME | $2K | 2023 |
| Sheldon Calvary CampGENERAL PURPOSE | Conneaut, OH | $2K | 2023 |
| Rotary Club Of Leesburg Foundation IncGENERAL PURPOSE | Leesburg, VA | $2K | 2023 |
| New Hampshire Food BankGENERAL PURPOSE | Manchester, NH | $2K | 2023 |
| National Ms SocietyGENERAL PURPOSE | Pittsburgh, PA | $2K | 2023 |
| Ghost RanchGENERAL PURPOSE | Abiquiu, NM | $2K | 2023 |
| St Anthony Charitable FoundationGENERAL PURPOSE | Wexford, PA | $2K | 2023 |
| Sacred Heart Elementary SchoolGENERAL PURPOSE | Pittsburgh, PA | $2K | 2023 |
| Susan G KomenGENERAL PURPOSE | Dallas, TX | $2K | 2023 |
| Hillsdale CollegeGENERAL PURPOSE | Hillsdale, MI | $2K | 2023 |
| Capital Area Food BankGENERAL PURPOSE | Washington, DC | $2K | 2023 |
| Autism Society Central OhioGENERAL PURPOSE | Worthington, OH | $2K | 2023 |
| Middle Tennessee State University FdnGENERAL PURPOSE | Murfreesboro, TN | $2K | 2023 |
| Hilliard Station 6th Grade School PtoGENERAL PURPOSE | Hilliard, OH | $2K | 2023 |
| Cripple Creek Presbyterian ChurchGENERAL PURPOSE | Readyville, TN | $2K | 2023 |
| Sexual Assault Resource AgencyGENERAL PURPOSE | Charlottesville, VA | $2K | 2023 |
| Food Bank For New York CityGENERAL PURPOSE | Hartsdale, NY | $1K | 2023 |
| First United Methodist Church Of WoodburyGENERAL PURPOSE | Woodbury, TN | $1K | 2023 |
| Aquinas Academy Of PittGENERAL PURPOSE | Gibsonia, PA | $1K | 2023 |
| National Links TrustGENERAL PURPOSE | Washington, DC | $1K | 2023 |
| American Foundation Suicide PreventionGENERAL PURPOSE | New York, NY | $1K | 2023 |
| Habitat For Humanity Greater PittsburghGENERAL PURPOSE | Pittsburgh, PA | $1K | 2023 |
| Shady Side AcademyGENERAL PURPOSE | Pittsburgh, PA | $1K | 2023 |
| New Yorl State Trooper FoundationGENERAL PURPOSE | Latham, NY | $1K | 2023 |
| Planned Parenthood Of Western PaGENERAL PURPOSE | Pittsburgh, PA | $1K | 2023 |