Badger History Group

Nonprofit profile at a glance

EIN
261826902
IRS 990-EZ coverage
2022–2025
Forms available
Form 990-EZ 2025, Form 990-N 2021
Location
Prairie Du Sac, WI, USA
Phone
6084480244
Rating
84
Verdict
STRONG
Rating confidence
Moderate
Sector
History Museums

Official website

Reported finances

Revenue
$63,582
Expenses
$34,157
Assets
$179,292
Liabilities
$0

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

Leadership & pay

8 people listed

Executive titles in this filing

  • Mike Mossman (President)
  • Orie Eilertson (Vice-President)

People named in this filing

  • Mike Mossman (President)
  • Orie Eilertson (Vice-President)
  • Heather Sonntag (Secretary)

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

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

Overview

Mission

Education of the histories of Badger Army Ammunition Plant and the Sauk Prairie. Purpose includes a public museum, website, public lectures and plant tours.

What it reported doing in 2025

Museum & Archives- Operates a 4,800 sf museum and archival storage with 2,500 visitors per year. Archives include 45,000 artifacts, photos and history files. Museum is open 30 hours per week. Facilities available for personal historic research.

Operating model

Revenue model
Donor-supported. 79% of the money available for current operations came from contributions and gifts.
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

STRONG - The filed numbers largely add up and a large share of total spending goes to programs. A relatively small share of available resources goes toward mission work and reported officer compensation is a large share of total spending, which may reflect staffing concentration.

Rating breakdown

  • Financial Efficiency: 71
  • Transparency & Controls: 100
  • Sustainability: 74
  • Growth: 100

Detailed rating inputs

Financial Efficiency

  • Mission deployment rate: 56%; rating input score 56
  • Program expense ratio: 97.1%; rating input score 97

Transparency & Controls

  • Consistency checks: 100%; rating input score 100; 51st percentile among comparable filings
  • Major donor itemization: Yes; rating input score 100

Sustainability

  • Operating margin: 46.3%; rating input score 88; 88th percentile among comparable filings
  • Total-asset coverage ratio: 5.25; rating input score 84; 84th percentile among comparable filings
  • Liabilities to assets ratio: 0; rating input score 66; 66th percentile among comparable filings
  • Officer compensation ratio: 39.9%; rating input score 4; 4th percentile among comparable filings

Growth

  • Program expense growth: 8.3% per year; rating input score 100; 68th percentile among comparable filings
  • Revenue growth: 27% per year; rating input score 100; 92nd percentile among comparable filings
  • Asset growth: 64.3% per year; rating input score 100; 96th percentile among comparable filings

Details

  • Where the money goes: 56% of revenue deployed · 97.1% of spending went to programs
  • Governance: Filed governance answers
  • Accomplishments: 3 filed program accomplishments · $33K in reported program spending
  • Leadership: top reported pay $0 · 8 people listed
  • Consistency: 9 of 9 current checks pass
  • Schedules: 2 filed schedules
  • Filing history: 4 filing years from 2022 to 2025
  • Contacts: How to reach this organization
  • Money network: 1 filed money-flow record
  • Related organizations: Filed and resolved organization relationships.
  • 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.

  • Review — Financial Efficiency: Mission deployment rate scored 56/100.
  • High — Sustainability: Officer compensation ratio scored 4/100.