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BUFFALO NATIONS GRASSLANDS ALLIANCE

Lower Brule, SDEIN: 86-3303913Website

Data sourced from IRS 990 public filings

BUFFALO NATIONS GRASSLANDS ALLIANCE The Buffalo Nations Grasslands Alliance's mission is to ensure that the Native nations in the US portion of Northern Great Plans have the technical and financial resources to plan and act on the vision for their traditional lands and waters.

BUFFALO NATIONS GRASSLANDS ALLIANCE has received 14 grants from 7 known foundation funders. Revenue increased from $1,154,185 in 2024 to $1,338,397 in 2025. Most recent reported revenue: $1,338,397.

Annual Revenue

$1,338,397

Known Funders

7

Grants Received

14

Financial History

YearRevenueExpensesAssets
2025$1,338,397$1,548,982$1,644,869
2024$1,154,185$439,679$1,819,018
2023$987,482$112,064$1,103,052
2022$225,000$13$224,987

Top Funders

$300,000 (2024)
$250,000 (2024)
$212,206 (2022)
Wells Fargo Foundation

MINNEAPOLIS, MN

$200,000 (2024)
$150,000 (2023)
$150,000 (2023)
$150,000 (2023)
$100,000 (2023)
$50,000 (2022)
$40,000 (2023)

Key Personnel

From 2025 IRS 990 filing

M

Marvin Grassrope

Board President

M

Monica Rattling Hawk Terkeldsen

Board Member

R

Rachel Hanisch

Board Vice President

J

Jennifer Martel

Board Treasurer

S

Shaun Grassel

CEO

OfficerKey Employee
A

Adriann Killsnight

Board Member

Frequently Asked Questions

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    BUFFALO NATIONS GRASSLANDS ALLIANCE (EIN: 86-3303913) - Funders & 990 Data | Signal990