Passes our checks

Suisun Marsh Natural History Assoc

EIN 94-2497041 · Suisun City, CA

Public records show a registered, tax-exempt organization in good standing.

What it says it does

Wildlife Rescue & Rehabilitation and Environmental Education for Adults and Children

Source: Form 990 for the year ending December 31, 2025, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

We do not score finances when yearly spending is very small or the return has too little detail. The ratios stop meaning much at that size.

Source: Form 990 for the year ending December 31, 2025, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Weak: 35 out of 100.

Independent board
5 of 25
0 of 6 voting board members are independent.
Conflict of interest policy
0 of 15
Reports no written conflict of interest policy.
Whistleblower policy
0 of 8
Reports no written whistleblower policy.
Record keeping policy
0 of 7
Reports no written policy on keeping and destroying records.
Board minutes
5 of 5
Keeps minutes of board meetings.
Board sees the tax return
10 of 10
Gave the board a copy of this return before filing it.
Pay set independently
0 of 5
Reports no independent review process for its chief executive's pay.
No reported misuse
10 of 10
Reports no diversion of assets, excess benefits or loans to insiders.

Source: Form 990 for the year ending December 31, 2025, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Describes programs. Its tax return describes what it does but we have found no measurable results in it.

Programs described in its return (2)

$16,588 spent. WILDLIFE REHABILITATION - Treatment of wild birds and animals is temporarily on hold for renewal of permits. Expenses were used to improve the caging and facility and cover monthly operating bills.
$15,286 spent. ENVIRONMENTAL EDUCATION - Have served over 340,000 children and adults throughout Solano County and the Bay Area since the inception of the program. However we are lacking docents and presentations have been scaled back. But we continued to reach the public through our very popular Facebook page which expanded to over 9.600 followers and regularly reach over 20,000 people on our posts. The intention of our posts is to expand our membership and at the same time provide natural history education. Plans for 2026 are to expand into multi-media internet classes and resume local presentations.

Source: Form 990 for the year ending December 31, 2025, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Is it registered with the IRS? Passed.
Listed in the IRS master file of tax-exempt organizations as a 501(c)(3) charitable organization.
Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated October 13, 2026.
Has the IRS revoked its tax-exempt status? Passed.
Not on the IRS automatic revocation list.
Source: Automatic revocation of exemption list, Internal Revenue Service, file dated October 13, 2026.
Are donations tax-deductible? Passed.
On the IRS list of organizations eligible to receive tax-deductible contributions.
Source: Publication 78 data: organizations eligible for tax-deductible contributions, Internal Revenue Service, file dated October 13, 2026.
Is it keeping up with its IRS filings? Passed.
Most recent return on file covers the year ending December 2025.
Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated October 13, 2026.
How long has it been tax-exempt? Passed.
Recognized by the IRS since July 1978.
Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated October 13, 2026.
Is it in good standing with state regulators? Passed.
Not on California's list of charities barred from soliciting. Other states are not yet checked.
Source: May Not Operate or Solicit for Charitable Purposes list, California Attorney General, Registry of Charities and Fundraisers, file dated October 21, 2026.

Ratings and checks are our reading of public records, using the published method. They are not a statement about anyone's honesty. If you work for this organization, you can send corrections or results, confirm you want gifts through Veridonate, or ask to be removed from giving.