Tatanka Oyate Preservation Society

Nonprofit profile at a glance

EIN
861244855
IRS 990 coverage
2023–2025
Forms available
Form 990 2025, Form 990-N 2022
Location
Lake Andes, SD, USA
Phone
6052755300
Rating
70
Verdict
SUPPORTED
Rating confidence
Moderate
Sector
Historical Societies, Related Historical Activities

Reported finances

Revenue
$76,901
Expenses
$30,135
Assets
$104,260
Liabilities
$0

Source: IRS Form 990. Selected filing: tax year 2025. Amounts in USD.

Leadership & pay

4 people listed

Executive titles in this filing

  • GALEN DRAPEAU (PRESIDENT)

People named in this filing

  • ANITA SANCHEZ (MEMBER)
  • JORDAN DRAPEAU (TREASURER)
  • GALEN DRAPEAU (PRESIDENT)

Selected names, not a complete roster or a statement of current roles. Open leadership details for the complete filed list.

Source: IRS Form 990. Selected filing: tax year 2025. Names and roles reflect this filing, not necessarily current officeholders.

Overview

Mission

To foster, promote, and preserve the ihanktonwan nakota oyate way of life in a manner that will teach the oyate to live in a sustainable culturally derived way for future generations.

Operating model

Revenue model
Grant-funded. 78% of the money available for current operations came from government grants.
Distribution model
Direct operator. The filing allocates 100% of reported program-service expenses outside its grant, affiliate-payment, and member-benefit lines. This expense classification does not rule out separately announced grant awards.

The verdict

SUPPORTED - The filed numbers largely add up and most voting board members are independent. A relatively small share of available resources goes toward mission work and some filing-based governance responses are negative or unanswered.

Rating breakdown

  • Financial Efficiency: 55
  • Transparency & Controls: 90
  • Accountability: 70
  • Sustainability: 71
  • Growth: 60

Detailed rating inputs

Financial Efficiency

  • Mission deployment rate: 39.3%; rating input score 39
  • Program expense ratio: 100%; rating input score 100
  • Fundraising efficiency: Limited

Transparency & Controls

  • Consistency checks: 90%; rating input score 90; 14th percentile among comparable filings
  • Pay-setting controls: Limited
  • Foreign activity oversight: Limited
  • Grant itemization coverage: Limited
  • Major donor itemization: Limited
  • Related-party transparency: Limited

Accountability

  • Independent voting board: 100%; rating input score 100; 64th percentile among comparable filings
  • Governance controls: 2 of 7 controls in place; rating input score 29
    • Conflict-of-interest policy: Fail
    • Whistleblower policy: Fail
    • Document-retention policy: Fail
    • CEO compensation review process: NotApplicable
    • Other executive compensation review process: NotApplicable
    • Form 990 shared with the board: Pass
    • Board meeting minutes documented: Pass
    • Audit committee oversight: Missing
    • Independent financial-statement audit: Fail

Sustainability

  • Operating margin: 60.8%; rating input score 91; 91st percentile among comparable filings
  • Total-asset coverage ratio: 3.46; rating input score 46; 46th percentile among comparable filings
  • Liabilities to assets ratio: 0; rating input score 66; 66th percentile among comparable filings
  • Officer compensation ratio: 0%; rating input score 58; 58th percentile among comparable filings

Growth

  • Program expense growth: 13.1% per year; rating input score 100; 77th percentile among comparable filings
  • Revenue growth: -15.8% per year; rating input score 0; 23rd percentile among comparable filings
  • Asset growth: 19.4% per year; rating input score 100; 88th percentile among comparable filings

Details

  • Where the money goes: 39.3% of revenue deployed · 100% of spending went to programs
  • Governance: 4 of 4 board members independent · 2 of 7 filing controls reported
  • Programs: 1 filed program accomplishment · $30K in reported program spending
  • Leadership: top reported pay $0 · 4 people listed
  • Consistency: 17 of 18 current checks pass · 1 finding to review
  • Schedules: 3 filed schedules
  • Filing history: 3 filing years from 2023 to 2025
  • Contacts: How to reach this organization
  • Grant readiness: Federal tax and exclusion status, award history, and grant-maker relationships.
  • People: Everyone the filings name, and which of them the filings identify by more than a name.

Key Signals

Signals prioritize questions for review. They are not findings of misconduct.

  • Moderate — Financial Efficiency: Mission deployment rate scored 39/100.
  • High — Accountability: Governance controls: 4 of 6 not reported.
  • High — Growth: Revenue growth scored 0/100.
  • Moderate — Transparency & Controls: Schedule A contributions reconciliation did not reconcile in the filed values.
  • Moderate — Sustainability: Total-asset coverage ratio scored 46/100.
  • Review — Sustainability: Officer compensation ratio scored 58/100.