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Stewardship· Professional society

River Management Society

“Support professional river management to preserve river values.”

Home groundMissoula, MT
Founded1996
KindStewardship 501(c)(3)
Led byJudy Culver

Every way to help ↓

The work

What they do

Professional organization for river managers from federal, state, and local agencies. Training, knowledge sharing, and river management best practices.

Every year they sign one sentence and file it with the federal government: “MANAGING PUBLIC RIVERS”

Where the money went, FY2024

The work, and what it cost

Guarding the water

$170K

FIELDED IN-PERSON AND VIRTUAL WORKSHOPS THROUGH THE RMS RIVER TRAINING CENTER PRODUCED AND HOSTED PEER-LEARNING RIVER TRIPS SUPPORTED THE RIVER STUDIES AND LEADRSHIP CERTIFICATE PROGRAM EXPANDED THE NATIONAL RIVER RECREA...

Read it as they filed it
FIELDED IN-PERSON AND VIRTUAL WORKSHOPS THROUGH THE RMS RIVER TRAINING CENTER PRODUCED AND HOSTED PEER-LEARNING RIVER TRIPS SUPPORTED THE RIVER STUDIES AND LEADRSHIP CERTIFICATE PROGRAM EXPANDED THE NATIONAL RIVER RECREATION DATABASE AND PRODUCED AND POSTED QUARTERLY JOURNALS ON RIVER MANAGEMENT.

IRS Form 990 Part III, fiscal year 2024, signed under penalty of perjury.

Follow the dollar

41 cents of every dollar goes to the work

41¢
41¢ the work59¢ keeping the lights on0¢ finding the next member

One year’s split is a snapshot, not a verdict. Splits swing hard with land deals, grants, and campaign timing. The trend line below says more than any single year.

$170,156 programs, $248,462 management, $885 fundraising. Form 990, FY2024.

The people

Who does the work

4paid staff
16board members
30years on the ground
Risa ShimodaExe. DirectorComp $74,221, FY2024

Honesty note: leadership comes from each year’s federal filing, so it can run a year behind. Orgs that claim their page can update it same-day. Work at RMS? Claim this page.

The filings

14 years of filings

14 years of filings

Total revenue by fiscal year, as filed. Point at the line for any year.

$374K FY2420112024
Total revenue by fiscal year
YearRevenue
2011$139,663
2012$222,222
2013$145,735
2014$184,964
2015$183,902
2016$202,282
2017$298,916
2018$408,384
2019$295,053
2020$381,449
2021$323,212
2022$384,847
2023$468,390
2024$374,433

From $140K in 2011 to $374K in FY24, with no missed filing in 14 years.

Stand with River Management Society

30 years on the ground, 41 cents of every dollar on the line. That is who is holding it. There is room for one more.

Sources and methodFinancials, headcounts, and program text: IRS Form 990, FY2024 and 13 prior filings via ProPublica Nonprofit Explorer, EIN 31-1297130. Leadership and compensation: Form 990 Part VII and the return’s signature block, FY2024 filing. Org-reported figures are always labeled. Data verified as of 2026-09-23. Nothing on this page is pay-to-play.