Virginia · Nonprofit
The Side-Out Foundation
The Side-Out Foundation (Virginia) receives grants from 31 organizations whose IRS filings report $90,162 to it, the largest being AMERICAN ONLINE GIVING FOUNDATION INC ($26,037). 9 of them have funded it in more than one year, and 56% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- Revenue FY2025
- $1.5M
- Funders on record
- 31
- Grants received
- $90k
- Net assets
- $1.7M
What The Side-Out Foundation does
Mission
Making breast cancer a manageable disease (similar to diabetes) takes an organization with extraordinary vision & cutting-edge tactics. The Side-Out Foundation is a 501(c)(3) non-profit organization, founded in 2004 by Richard and Bryant Dunetz, to empower a new generation of advocates, make significant and identifiable impact on the way breast cancer is treated, and give those living with metastatic breast cancer (MBC) more tomorrows.Since its inception, the foundation has (I) built educational and community-driven programs focused on teaching advocacy to the next generation of changemakers, equipping them with skills and tools to support Side-Out's mission, as well as any cause they wish to connect to in their future; (II) forged groundbreaking collaborations with prestigious research teams, hospitals, and research centers nationwide and; (III) leveraged new technologies to improve, alter cancer trajectories, and constantly challenge the foundation of cancer care.
As stated on its FY2025 Form 990.
Program
During the 20242025 fiscal year we achieved the following research objectives.1. Publication in the British Journal of Cancer. Our manuscript, "Functional activation of the AKTmTOR signalling axis in a real-world metastatic breast cancer cohort" by Rasad D, Baldelli E, Blais EM, Davis J, El Gazzah E, Mueller C, Gomeiz A, Ibrahim A, Newrekar AV, Corgiat BA, Dunetz R, Petricoin III EF, Wei Q, and Pierobon M, was published in the British Journal of Cancer (Br J Cancer. 2024 Nov;131(9):1543-1554). This study analyzed a real-world cohort of 171 metastatic breast cancer patients who underwent multi-omic profiling through Perthera. The primary objective was to characterize metastatic lesions from a genomic perspective and compare them with historical cohorts of primary tumors, with a particular focus on how genetic alterations in the AKTmTOR pathway translate into phenotypic changes at the protein level. The findings represent an important step forward for precision medicine and demonstrate the superiority of multi-omic approaches in identifying patients who may respond to inhibitors targeting the AKT-mTOR pathway. In addition, the study further validated that increased activation of AKT…
$1,232,025 spent100% of program spending
The program described on its FY2024 Form 990. Program spending in total: $1,232,025.
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 2020 to 2021, from $2.9M to $2.0M (−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.
96% of The Side-Out Foundation’s revenue is contributions — more reliant on donations than three-quarters of its peers (48% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 7 of the last 8 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
Ellen Dempsey
Executive Director
Board chair
Gary Thompson
Board chair
As listed on its FY2025 Form 990.
The chief executive listed changed between the FY2023 and FY2024 filings.
Who funds it, year by year
2017 → 2023: the base broadened from 1 funder to 7 funders, grant income rose $150 → $19k.
4 of 31 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 56% 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 Side-Out Foundation’s funders (the co-funder graph). Top 30 of 31 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
The Side-Out Foundation leans on a few funders — its largest provides 29% of grant income and the top three 77%; half comes from just 2 funders.
the vertical line marks half of all grant income — 2 funders to its left
81% 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 The Side-Out Foundation.
Largest funder’s share by year: 2017 100% · 2018 50% · 2019 87% · 2020 97% · 2021 47% · 2022 89% · 2023 59% — 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.
How long its funders stay
19% of The Side-Out Foundation's funders are still giving 3 years after their first grant; 29% 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
56% of The Side-Out Foundation'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 $40k that is directly attributable, 100% of it comes from funders outside Virginia, across 15 states.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $50k arriving through sponsors registered in 4 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
The Side-Out Foundation holds deeper cash reserves than three-quarters of the 9,615 education nonprofits its size.
this organization peer median middle 50% of peers· 9,615 education nonprofits $1M–$10M, FY2025
Organizations like The Side-Out Foundation
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 Virginia
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
75% of spending goes to programs.
Governance
Public support
98%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Footprint & structure
Files a return copy in 26 states
Screen this organization
A dated, signed PDF of the compliance screen for The Side-Out Foundation: 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 Side-Out Foundation?
- The Side-Out Foundation (Virginia) receives grants from 31 organizations whose IRS filings report $90,162 to it, the largest being AMERICAN ONLINE GIVING FOUNDATION INC ($26,037). 9 of them have funded it in more than one year, and 56% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- How many funders does The Side-Out Foundation have?
- IRS filings report 31 organizations giving $90,162 in grants to The Side-Out Foundation, 9 of which have funded it in more than one year.
- Who is the largest funder of The Side-Out Foundation?
- AMERICAN ONLINE GIVING FOUNDATION INC is the largest funder on record, with $26,037 in grants. The full list of funders is on this page.
- How can an organization like The Side-Out Foundation find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Virginia. 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 31 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 22, 2026. What this page cannot tell you · view filing