South Carolina · Nonprofit
OneWorld Health
OneWorld Health (South Carolina) receives grants from 66 organizations whose IRS filings report $5,684,477 to it, the largest being IG FAMILY FOUNDATION INC ($1,445,780). 27 of them have funded it in more than one year, and 52% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- Revenue FY2025
- $7.3M
- Funders on record
- 66
- Grants received
- $5.7M
- Net assets
- $6.0M
What OneWorld Health does
Mission
To provide quality, affordable healthcare to people in need.
As stated on its FY2025 Form 990.
Programs
Medical Clinics Uganda Medical Clinics Uganda has remained grounded in a single guiding principle since its inception: delivering high-quality, affordable healthcare to underserved communities. As we enter our 17th fiscal year, we continue to stay focused on this mission while steadily advancing toward our 2030 strategic vision. For the year ending June 30, 2025, we provided care to 152,010 patients across seven facilities (Masindi, Bulima, Kijunjubwa, Bweyale, Kyenjojo, Kyegegwa, and Bugembe) including 12,296 patients reached through telehealth services and 8,020 through outreach programs.
$2,325,645 spentof which $420 as grants$1,005,441 earned by the program34% of program spendingMedical Clinics Nicaragua Over the past year, we have continued to work closely with underserved communities to better understand the barriers to accessing high-quality healthcare around the world. Our goal extends beyond improving health outcomes. We envision a future where a person's birthplace does not determine their ability to receive care. We recognize the responsibility to address these inequities and remain committed to helping build a more just system where everyone has the opportunity to live a healthy, fulfilling life. For the year ending June 30, 2025, we served 63,263 patients across six facilities: El Viejo, Sebaco, Tola, Mayoreo, Huembes, and Tipitapa.
$1,549,313 spentof which $18,351 as grants$995,758 earned by the program23% of program spendingMedical Clinic Honduras At the core of our work is a commitment to delivering healthcare to those who need it most. As we advance our Strategic Vision, we are expanding our infrastructure model while introducing innovative, scalable approaches to ensure underserved communities have access to high-quality care. For the year ending June 30, 2025, we served 51,762 patients across five facilities: Siguatepeque, Potrerillos, Mobile Clinic, Tegucigalpa-El Centro, and El Manchen.
$1,577,082 spentof which $1,901 as grants$722,880 earned by the program23% of program spendingVolunteer Services Several times each year, OneWorld Health deploys short-term teams of medical and non-medical volunteers to serve communities surrounding our project sites. During the development phase of our medical centers, these teams deliver consistent care, help establish a standard of quality, and build awareness for the clinics to come. Once the centers are operational, volunteers continue to support them through patient care, training, and referrals. These short-term trips play a vital role in strengthening the success of our long-term initiatives. For the year ending June 30, 2025, 206 volunteers served in East Africa and Central America, contributing nearly 12,795 hours of service.
$1,367,592 spentof which $24,542 as grants$791,417 earned by the program20% of program spending
The 4 programs described on its FY2024 Form 990, listed largest first by expense. Program spending in total: $6,819,632.
The organization over time
Each line starts at 100 in 2017, so what you read is the shape rather than the size: 150 means half as much again as 2017, 50 means half. The number beside each label in the key is where it ended. The shaded band is where the middle 50% of its peers' revenue would sit, given their growth.
Balance sheet
Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2021 to 2022, from $4.8M to $6.2M (+29%).
How it's funded, over time
Each bar is one year's revenue split into where it came from, and every bar is the same height — these are shares, not amounts, so a year that raised twice as much looks the same size. Hover a bar for the split.
Government-grant reliance: 2019 1% · 2020 10%. Grants only. Government contracts and fees sit inside program revenue.
62% of OneWorld Health’s revenue is contributions — more earned-revenue than three-quarters of its peers (97% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 2 of the last 9 reported years ran a deficit.
reserve
Leadership and staff
The officers, directors, trustees and key employees listed on each return. Joined and no longer listed compare each filing with the year before, matching people by surname and first initial; a year after a gap, or a roster under three people, has no comparison.
Chief executive
Michael A O'Neal II
Executive Director
Board chair
Mitchell Harper
Chairman
As listed on its FY2025 Form 990.
The chief executive listed changed between the FY2018 and FY2019 filings.
Who funds it, year by year
2017 → 2023: the base broadened from 8 funders to 18 funders, grant income rose $320k → $841k.
26 of 66 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 52% of grant dollars received. That money is really individual donors directing a sponsor; the institutions to cultivate are the non-DAF funders.
From the IRS filings of OneWorld Health’s funders (the co-funder graph). Top 30 of 66 funders by total. Association, not causation. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
How concentrated its funding is
OneWorld Health has a broad base — no single funder exceeds 25% of grant income, and it takes 3 funders to reach half.
the vertical line marks half of all grant income — 3 funders to its left
84% of the income these shares are computed over arrives through pass-through sponsors or from payers whose filings do not say what kind of payment it is. Concentration is still measured over all of it, because the money is real; what it does not support is a claim about how many institutions have chosen to fund OneWorld Health.
Largest funder’s share by year: 2017 34% · 2018 33% · 2019 39% · 2020 32% · 2021 43% · 2022 30% · 2023 36% — broadly stable.
“Effective funders” = inverse Herfindahl index (1 / Σ shareᵢ²) — the number of equal-sized funders that would give the same concentration. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
How long its funders stay
27% of OneWorld Health's funders are still giving 3 years after their first grant; 41% give in more than one year at all.
Share of funders still giving k years after their first recorded grant, pooled across every acquisition cohort. A funder counts as retained in a year only if it made a grant that year. Measured to FY2023, the last fiscal year that has finished arriving — a funder cannot be counted as lapsed in a year most filers have not reached.
Where its funders are
52% of OneWorld Health's grant income arrives through donor-advised or pass-through sponsors, whose addresses record where the money is held rather than where the donor is. Of the $2.7M that is directly attributable, 86% of it comes from funders outside South Carolina, across 21 states.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $2.9M arriving through sponsors registered in 18 states is excluded from the map and the split above: a sponsor holds money on a donor’s behalf, so its registered address would place those dollars somewhere no donor need ever have been. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
Against its field
OneWorld Health's revenue grew 72% between 2017 and 2025.
this organization peer median middle 50% of peers· 718 international nonprofits $1M–$10M, FY2025
Government funding OneWorld Health receives
Grants and contracts to this organization from federal (USASpending) and state checkbooks, reconciled to its EIN. $500k on record.
- Agency for International Development$500k
Federal grants vs contracts are distinguished; state line items keep their reported category. Matched by name + geography (the BMF), so coverage is partial and precision-first.
Organizations like OneWorld Health
Organizations whose mission and program text most resemble this one, by semantic similarity over every organization in the US filings — the closest peers, and often the clearest route to shared or prospective funders.
In South Carolina
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
87% of spending goes to programs.
Governance
Public support
73%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Footprint & structure
Files a return copy in 40 states
Screen this organization
A dated, signed PDF of the compliance screen for OneWorld Health: IRS status (Business Master File, Publication 78, auto-revocation), the OFAC sanctions lists, the Internal Revenue Bulletin, and California registration, with the Rev. Proc. 2018-32 §8.01 reliance elements stated element by element. Generated from the current files at the moment you download it.
Screens are triage, not determinations; a source that cannot be read reports not screened, never clear. Screen this nonprofit · How the screen works · on the API as GET /api/screening/{ein}?format=pdf
Questions and answers
- Who funds OneWorld Health?
- OneWorld Health (South Carolina) receives grants from 66 organizations whose IRS filings report $5,684,477 to it, the largest being IG FAMILY FOUNDATION INC ($1,445,780). 27 of them have funded it in more than one year, and 52% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- How many funders does OneWorld Health have?
- IRS filings report 66 organizations giving $5,684,477 in grants to OneWorld Health, 27 of which have funded it in more than one year.
- Who is the largest funder of OneWorld Health?
- IG FAMILY FOUNDATION INC is the largest funder on record, with $1,445,780 in grants. The full list of funders is on this page.
- How can an organization like OneWorld Health find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in South Carolina. The funding by cause and by state pages list the largest funders for a given area and how to approach them.
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2017–2025), and the filings of 66 funders that report grants to it. “On record” means captured in the filings we have parsed — a funder that does not e-file, or whose grant detail is not itemized, will not appear. Filings run roughly 12–24 months behind. Trends on this page end at FY2023, the last fiscal year that has finished arriving; later years are shown and marked, and move no figure. Data on this page was exported October 14, 2026. What this page cannot tell you · view filing