Arizona · Nonprofit
The Charles H Tweed International Foundation for Orthodontic Research
The Charles H Tweed International Foundation for Orthodontic Research (Arizona) receives grants from 1 organization whose IRS filings report $5,200 to it, the largest being DONOR ADVISED CHARITABLE GIVING INC ($5,200). 0 of them have funded it in more than one year, and 100% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- Revenue FY2026
- $733k
- Funders on record
- 1
- Grants received
- $5k
- Net assets
- $4.5M
What The Charles H Tweed International Foundation for Orthodontic Research does
Mission
The organization conducts five to six one-week courses per year in orthodontic edgewise mechanics given under the charles h. Tweed method; provides loans to orthodontists and orthodontic students to take the course and publishes "the tweed profile," a professional orthodontic publication. The course draws students from all over the world.
As stated on its FY2024 Form 990.
Programs
Charles Tweed Method Study Course
$523,598 spent$696,272 earned by the program99% of program spendingLow Interest Rate Loans to Orthodontics Students.
$3,212 spent$27 earned by the program1% of program spending
The 2 programs described on its FY2025 Form 990, listed largest first by expense. Program spending in total: $526,810.
The organization over time
Each line starts at 100 in 2021, so what you read is the shape rather than the size: 150 means half as much again as 2021, 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 2025 to 2026, from $4.1M to $5.3M (+30%).
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.
87% of The Charles H Tweed International Foundation for Orthodontic Research’s revenue is contributions — more donation-reliant than the typical peer (82% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 3 of the last 6 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
Bonnie Shewairy
Admin/ Exec Director
As listed on its FY2026 Form 990.
Who funds it, year by year
Grant support over time, funder by funder — shade shows the grant size each year.
1 of 1 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 100% 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 The Charles H Tweed International Foundation for Orthodontic Research’s funders (the co-funder graph). 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.
Where its funders are
100% of The Charles H Tweed International Foundation for Orthodontic Research'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. Too little is directly attributable to place on a map.
Funder states come from each funder’s own filing. $5k arriving through sponsors registered in 1 state 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
The Charles H Tweed International Foundation for Orthodontic Research is better cushioned than half of the 175 health nonprofits its size.
this organization peer median middle 50% of peers· 175 health nonprofits $100k–$1M, FY2026
Organizations like The Charles H Tweed International Foundation for Orthodontic Research
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 Arizona
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
69% of spending goes to programs.
Governance
Public support
84%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Footprint & structure
Files a return copy in 1 state
Screen this organization
A dated, signed PDF of the compliance screen for The Charles H Tweed International Foundation for Orthodontic Research: 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 The Charles H Tweed International Foundation for Orthodontic Research?
- The Charles H Tweed International Foundation for Orthodontic Research (Arizona) receives grants from 1 organization whose IRS filings report $5,200 to it, the largest being DONOR ADVISED CHARITABLE GIVING INC ($5,200). 0 of them have funded it in more than one year, and 100% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- How many funders does The Charles H Tweed International Foundation for Orthodontic Research have?
- IRS filings report 1 organization giving $5,200 in grants to The Charles H Tweed International Foundation for Orthodontic Research.
- Who is the largest funder of The Charles H Tweed International Foundation for Orthodontic Research?
- DONOR ADVISED CHARITABLE GIVING INC is the largest funder on record, with $5,200 in grants. The full list of funders is on this page.
- How can an organization like The Charles H Tweed International Foundation for Orthodontic Research find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Arizona. The funding by cause and by state pages list the largest funders for a given area and how to approach them.
Play a game about who funds Charles H Tweed International Foundation for Orthodontic Research →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2026 (financials across 2021–2026), and the filings of 1 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