Colorado · Nonprofit
GEOLOGICAL SOCIETY OF AMERICA INC
GEOLOGICAL SOCIETY OF AMERICA INC (Colorado) receives grants from 3 organizations whose IRS filings report $10,000 to it, the largest being AEG FOUNDATION ($6,000). 0 of them have funded it in more than one year.
- Revenue FY2025
- $15M
- Funders on record
- 3
- Grants received
- $10k
- Net assets
- $55M
What Geological Society of America Inc does
Mission
The geological society of america was founded to advance the science of geology, enhance the professional growth of its members and to promote the geosciences in the service of humankind and stewardship of the earth.
As stated on its FY2025 Form 990.
Programs
The organization sponsors an annual meeting for its members in the fall. Smaller meetings are held in the spring. Members attend to meet with division, section and associated society members. They attend field trips, technical sessions, short courses and conferences concerning topics in the field of geology.
$2,613,915 spent$2,357,628 earned by the program25% of program spendingEducation, outreach and grants - involvement in heightening public understanding of and appreciation for geosciences by working with scientists, teachers, students and the general public. There are also programs and short courses run by sections and divisions. The organization grants funds for research and travel to undergraduate, graduate, and post-doc students and supports a number of awards and medals to recognize excellence.
$3,810,861 spentof which $1,566,146 as grants$618,352 earned by the program36% of program spendingThe membership services program includes the cost of maintaining the society's membership for the benefit of its members and to advance their professionalism, research, and careers. There are approximately 16,000 members annually.
$486,650 spent$627,442 earned by the program5% of program spendingOther program services include: publishing and distributing scientific literature,providing information and materials for primary level science education and furnishing information to the public about earth science education and the environment. Other programs include programs sponsored by members in specific geographical locations and sciences.
$3,709,620 spent$4,893,937 earned by the program35% of program spending
The 4 programs described on its FY2024 Form 990, listed largest first by expense. Program spending in total: $10,621,046.
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 $36M to $43M (+20%).
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: 2017 4% · 2018 3% · 2019 4% · 2020 2% · 2021 3% · 2022 2% · 2023 6% · 2024 3% · 2025 7%. Grants only. Government contracts and fees sit inside program revenue.
20% of GEOLOGICAL SOCIETY OF AMERICA INC’s revenue is contributions — about as donation-reliant as the typical peer (52% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 1 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
Melanie Brandt
Executive director and CEO
Board chair
Madison Rafter
Sac chair
As listed on its FY2025 Form 990.
Who funds it, year by year
2019 → 2022: the base held at 1 funder, grant income rose $2k → $6k.
Left out of every figure on this page: $11M from one payer (the payer shares this organization's board, largest Geological Society of America Foundation). These are real filings, and they are not money GEOLOGICAL SOCIETY OF AMERICA INC raised.
From the IRS filings of GEOLOGICAL SOCIETY OF AMERICA INC’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
GEOLOGICAL SOCIETY OF AMERICA INC leans on a few funders — its largest provides 60% 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
60% 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 GEOLOGICAL SOCIETY OF AMERICA INC.
Largest funder’s share by year: 2019 100% · 2021 100% · 2022 100% — 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.
Where its funders are
GEOLOGICAL SOCIETY OF AMERICA INC draws 100% of its grant income from funders outside Colorado, across 3 states in all.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. 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
GEOLOGICAL SOCIETY OF AMERICA INC runs a healthier operating margin than half of the 78 science & tech nonprofits its size.
this organization peer median middle 50% of peers· 78 science & tech nonprofits $10M–$100M, FY2025
Government funding GEOLOGICAL SOCIETY OF AMERICA INC receives
Grants and contracts to this organization from federal (USASpending) and state checkbooks, reconciled to its EIN. $10.8M on record — $10.8M federal, $5k state.
- National Science Foundation$4.4M
- Department of Agriculture$3.4M
- Department of the Interior$3.0M
- NJ$3k
- VT$955
- OR$300
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 GEOLOGICAL SOCIETY OF AMERICA INC
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 Colorado
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
77% of spending goes to programs.
Governance
Public support
88%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Footprint & structure
Part of a family of 1 related entity
- Geological Society of America Foundation · exempt
Screen this organization
A dated, signed PDF of the compliance screen for GEOLOGICAL SOCIETY OF AMERICA INC: 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 GEOLOGICAL SOCIETY OF AMERICA INC?
- GEOLOGICAL SOCIETY OF AMERICA INC (Colorado) receives grants from 3 organizations whose IRS filings report $10,000 to it, the largest being AEG FOUNDATION ($6,000). 0 of them have funded it in more than one year.
- How many funders does GEOLOGICAL SOCIETY OF AMERICA INC have?
- IRS filings report 3 organizations giving $10,000 in grants to GEOLOGICAL SOCIETY OF AMERICA INC.
- Who is the largest funder of GEOLOGICAL SOCIETY OF AMERICA INC?
- AEG FOUNDATION is the largest funder on record, with $6,000 in grants. The full list of funders is on this page.
- How can an organization like GEOLOGICAL SOCIETY OF AMERICA INC find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Colorado. 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 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