Massachusetts · Nonprofit
INTERNATIONAL MYELOMA SOCIETY
INTERNATIONAL MYELOMA SOCIETY (Massachusetts) receives grants from 3 organizations whose IRS filings report $13,276,571 to it, the largest being PAULA AND RODGER RINEY FOUNDATION ($13,176,213). 2 of them have funded it in more than one year.
- Revenue FY2024
- $12M
- Funders on record
- 3
- Grants received
- $13M
- Net assets
- $11M
What International Myeloma Society does
Mission
The International Myeloma Society (ims) is a professional, scientific,and medical society established to bring together clinical andexperimental scientists involved in the study of myeloma. The purposeof this society is to promote research, education, clinical studies (including diagnosis and treatment), workshops, conferences and symposia on all aspects of multiple myeloma and related disorders worldwide.
As stated on its FY2024 Form 990.
Program
The international myeloma workshop is the defining biennial meeting inmyeloma with a focus on both the basic, preclinical and the clinicalaspects, including:scientific programsoral presentations (on basic biology, preclinical trials and clinicalstudies)consensus panelsposter presentationsthe scientific program of the 19th international myeloma workshopstimulated debate and discussion among experts and advanced our understanding of the disease biology and therapy and involved over 1,300 participants.
$9,152,970 spentof which $2,746,726 as grants$11,364,903 earned by the program100% of program spending
The program described on its FY2024 Form 990. Program spending in total: $9,152,970.
The organization over time
Each line starts at 100 in 2019, so what you read is the shape rather than the size: 150 means half as much again as 2019, 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 2020 to 2021, from $4.7M to $7.4M (+56%).
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.
96% of INTERNATIONAL MYELOMA SOCIETY’s revenue is contributions — more reliant on donations than three-quarters of its peers (7% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 0 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.
Who funds it, year by year
2020 → 2023: the base broadened from 1 funder to 3 funders, grant income rose $37 → $3.5M.
2 of 3 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 1% 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 INTERNATIONAL MYELOMA SOCIETY’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.
How concentrated its funding is
INTERNATIONAL MYELOMA SOCIETY leans on a few funders — its largest provides 99% of grant income and the top three 100%; half comes from just 1 funder.
the vertical line marks half of all grant income — 1 funder to its left
Largest funder’s share by year: 2020 100% · 2021 100% · 2022 100% · 2023 97% — diversifying over time.
“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.
Where its funders are
INTERNATIONAL MYELOMA SOCIETY draws 100% of its grant income from funders outside Massachusetts, across 1 state in all.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $100k arriving through sponsors registered in 2 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
INTERNATIONAL MYELOMA SOCIETY runs a healthier operating margin than three-quarters of the 4,580 health nonprofits its size.
this organization peer median middle 50% of peers· 4,580 health nonprofits $10M–$100M, FY2024
Organizations like INTERNATIONAL MYELOMA SOCIETY
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 Massachusetts
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
94% of spending goes to programs.
Governance
Public support
99%
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 INTERNATIONAL MYELOMA SOCIETY: 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 INTERNATIONAL MYELOMA SOCIETY?
- INTERNATIONAL MYELOMA SOCIETY (Massachusetts) receives grants from 3 organizations whose IRS filings report $13,276,571 to it, the largest being PAULA AND RODGER RINEY FOUNDATION ($13,176,213). 2 of them have funded it in more than one year.
- How many funders does INTERNATIONAL MYELOMA SOCIETY have?
- IRS filings report 3 organizations giving $13,276,571 in grants to INTERNATIONAL MYELOMA SOCIETY, 2 of which have funded it in more than one year.
- Who is the largest funder of INTERNATIONAL MYELOMA SOCIETY?
- PAULA AND RODGER RINEY FOUNDATION is the largest funder on record, with $13,176,213 in grants. The full list of funders is on this page.
- How can an organization like INTERNATIONAL MYELOMA SOCIETY find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Massachusetts. 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 International Myeloma Society →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2024 (financials across 2019–2024), and the filings of 3 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