Public Charity

BUFFALO NATIONS GRASSLANDS ALLIANCE

BUFFALO NATIONS GRASSLANDS ALLIANCE is a nonprofit organization categorized as Public Charity based in Lower Brule, SD. Its most recent IRS filing (2025) reports revenue of $1.3M, expenses of $1.5M, total assets of $1.6M. Imperigo tracks 10 reported grant relationships connected to this organization totaling approximately $659K.

EIN: 863303913 Lower Brule, SD Latest filing: 2025
Total Revenue$1.3M
Total Expenses$1.5M
Total Assets$1.6M
Grant Records10
Funding Total$659K
Filing Years2021–2025

Mission

The Buffalo Nations Grasslands Alliance's mission is to ensure that the Native nations in the US portion of the Northern Great Plains have the technical and financial resources to plan and act on the vision for their traditional lands and waters, which includes ensuring that: Grasslands and native wildlife are restored or enhanced. Tribal members thrive by sustainable stewarding and connect with natural resources & Fish and Game departments have the capacity to deliver conservation impacts at scale.

Officers & Directors

Board Member Adriann Killsnight
Board Treasurer Jennifer Martel
Board President Marvin Grassrope
Board Member Monica Rattling Hawk Terkeldsen
Board Vice President Rachel Hanisch
CEO Shaun Grassel

Officer compensation and complete director data available with membership.

Top Grant Purposes

CONSERVATION
$252,206 2 grants
LAND RESTORATION
$150,000 1 grant
ECONOMIC DEVELOPMENT
$140,000 5 grants
Natural Resources Conservation & Protection
$100,000 1 grant
ANIMAL PROTECTION
$16,500 1 grant

Financial Trends

Year Revenue Expenses Assets
2025 $1.3M $1.5M $1.6M
2024 $1.2M $440K $1.8M
2023 $987K $112K $1.1M
2022 $225K $13 $225K
2021 $197K $8K $189K

Between 2021 and 2025, reported annual revenue grew from $197K to $1.3M (+578%), with total assets most recently reported at $1.6M.

Interactive year-over-year charts and full filing details available with membership.

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