Mare Island Heritage Trust

Nonprofit profile at a glance

EIN
271493661
IRS 990-EZ coverage
2016–2025
Forms available
Form 990-EZ 2025, Form 990-N 2015
Location
Vallejo, CA, USA
Phone
7076567852
Rating
80
Verdict
STRONG
Rating confidence
Moderate
Sector
Historical Societies, Related Historical Activities

Reported finances

Revenue
$8,050
Expenses
$17,754
Assets
$2,079
Liabilities
$0

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

Leadership & pay

3 people listed

Executive titles in this filing

  • MYRNA HAYES (PRESIDENT)

People named in this filing

  • MYRNA HAYES (PRESIDENT)
  • BRIAN COLLETT (TREASURER)
  • KATHY SKRIPEK (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

To maintain and promote open space, nature and wildlife education, and the historical and natural resources of mare island and the surrounding bay area communities, and to advocate for wild lands protection and public access to open space.

What it reported doing in 2025

Nature education, events, and tours. Facilitated nature education through mare island wildlife and nature charter tours and community nature events including the annual mare fare festival and san francisco bay flyway festival.

Operating model

Revenue model
Earned-program. 86% of the money available for current operations came from fees and other program revenue.
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 - A large share of available resources goes toward mission work and the filed numbers largely add up. Expenses are high relative to revenue and program spending has declined or grown slowly.

Rating breakdown

  • Financial Efficiency: 90
  • Transparency & Controls: 82
  • Sustainability: 22
  • Growth: 20

Detailed rating inputs

Financial Efficiency

  • Mission deployment rate: 100%; rating input score 100
  • Program expense ratio: 73.9%; rating input score 74

Transparency & Controls

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

Sustainability

  • Operating margin: -120.5%; rating input score 7; 7th percentile among comparable filings
  • Total-asset coverage ratio: 0.12; rating input score 14; 14th 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 56; 56th percentile among comparable filings

Growth

  • Program expense growth: -21.1% per year; rating input score 0; 19th percentile among comparable filings
  • Revenue growth: -17.7% per year; rating input score 0; 17th percentile among comparable filings
  • Asset growth: 2.7% per year; rating input score 100; 48th percentile among comparable filings

Details

  • Where the money goes: 100% of revenue deployed · 73.9% of spending went to programs
  • Governance: Filed governance answers
  • Accomplishments: 2 filed program accomplishments · $13K in reported program spending
  • Leadership: top reported pay $0 · 3 people listed
  • Consistency: 9 of 9 current checks pass
  • Schedules: 2 filed schedules
  • Filing history: 10 filing years from 2016 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.

  • High — Sustainability: Operating margin scored 7/100.
  • High — Growth: Program expense growth scored 0/100.
  • High — Growth: Revenue growth scored 0/100.
  • High — Sustainability: Total-asset coverage ratio scored 14/100.
  • Review — Sustainability: Officer compensation ratio scored 56/100.