Mission
TO PROTECT AND RESTORE THE BIG SIOUX RIVER AND ITS WATERSHED, IMPROVE THE WATER QUALITY, AND EDUCATE OUR COMMUNITY TO BUILD A CONSERVATION ETHIC.
Small Public Charity
FRIENDS OF THE BIG SIOUX RIVER
FRIENDS OF THE BIG SIOUX RIVER is a Small Public Charity headquartered in SIOUX FALLS, SD. Financial data from the 2025 filing: $186K revenue, $169K expenses, $202K total assets. 8 publicly reported grants to this organization, totaling roughly $84K, appear in IRS filings.
EIN: 473343873
SIOUX FALLS, SD
Natural Resources Conservation & Protection
NTEE: C30
Latest filing: 2025
Total Revenue$186K
Total Expenses$169K
Total Assets$202K
Grant Records8
Funding Total$84K
Filing Years2021–2025
Sample Grants Received
GENERAL SUPPORT
$8,600
MAPPING & PHOTO PROJECT, GENERAL SUPPORT
$21,250
GENERAL SUPPORT, RIVER PROJECT
$13,250
GENERAL SUPPORT
$9,950
COMMUNITY SUPPORT THROUGH DOWNTOWN GIVES ANNUAL FUND DRIVE
$6,525
Showing up to 5 of 8 total records — full history available with membership.
Officers & Directors
DIRECTOR
Austin Claeys
DIRECTOR
David O'hara
DIRECTOR
Liz Larson
SECRETARY
Madeleine Titze
TREASURY
Rachel Kloos
CHAIR
Ross Wright
Officer compensation and complete director data available with membership.
Top Grant Purposes
Financial Trends
| Year | Revenue | Expenses | Assets |
|---|---|---|---|
| 2025 | $186K | $169K | $202K |
| 2024 | $152K | $150K | $185K |
| 2023 | $194K | $119K | $183K |
| 2022 | $94K | $78K | $109K |
| 2021 | $50K | $25K | $89K |
Between 2021 and 2025, reported annual revenue grew from $50K to $186K (+276%), with total assets most recently reported at $202K.
Interactive year-over-year charts and full filing details available with membership.