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NonprofitTruth

Updated April 2026

Environment & Animals

Environment & Animals Charities in Montana

4 environment & animals nonprofits headquartered in Montana report combined revenue of $150.2M on their most recent IRS Form 990 filings, with an average Efficiency Score of 70/100.

Environment & Animals covers environmental, conservation, animal-welfare, and natural-resources nonprofits. 247 organizations, $15.8B in combined revenue.

Average efficiency is 73/100 across the Environment & Animals category. Conservation organizations split between large international groups with significant overhead infrastructure and smaller, regionally-focused land trusts and advocacy groups. This view filters the category down to Montana only. State-level subsets are useful for donors and grant-makers who want to focus support on local organizations.

4
Nonprofits
$150.2M
Combined Revenue
70/100
Avg Efficiency

What the Environment & Animals × Montana Numbers Show

Montana hosts a moderate cluster of environment & animals nonprofits — 4 organizations file IRS Form 990 returns from this state under the Environment & Animals category code, ranging from small local charities to mid-sized regional players.

Environment & Animals in Montana narrows 4 organizations down to the intersection of one IRS NTEE category and one state of principal office. The combined view gives a workable head-to-head comparison set for donors focused on a specific region and cause area.

The 4 environment & animals nonprofits in Montana in this view together report $150.2M in combined annual revenue on their most recent IRS Form 990 filings. Median revenue is $37.9M, and the simple average is $37.6M — a gap that reflects the long-tail distribution typical of the nonprofit sector, where a handful of large organizations account for most aggregate dollars.

Across the 4 environment & animals nonprofits in Montana we track, 0 earn an A and 4 earn a B on the Efficiency Score (combined 100% in the top two tiers, with A-grade organizations alone at 0%). Another 0 land at C, 0 at D, and 0 at F — a combined 0% in the bottom two tiers based on program ratio, reserves, growth consistency, and CEO-comp ratio drawn from each organization's most recent Form 990.

Executive compensation detail is reported on Schedule J of the Form 990 and is not always present for every organization in this list — particularly the smaller filers using Form 990-EZ.

How to Use This Cross-Section

Pages that intersect a single NTEE category and a single state are the most apples-to-apples comparison NonprofitTruth offers. The donor question they answer is narrow: among the environment & animals charities operating from a Montana office, how does Organization X compare on financial structure to Organization Y? Sort by revenue first to keep scale roughly constant, then sort by Efficiency Score within a tier.

The NonprofitTruth Efficiency Score is a 0–100 composite that summarizes four signals from the Form 990: program-spending ratio (50% of the score), revenue-growth consistency over multiple years (20%), months of fund reserves on the balance sheet (20%), and CEO compensation as a share of revenue (10%). The grade A–F mapping is purely descriptive — it summarizes the financial structure that the 990 reveals, not the social impact, program quality, or outcomes of the work the organization does. Donors evaluating impact should pair these financial signals with program-level evaluations from sources like Charity Navigator, GiveWell, or the organization's own audited reports.

For a broader view of environment & animals nationwide, see the all-states Environment & Animals page; for every nonprofit in Montana, see the Montana state page. Both views are linked at the bottom of this page.

Source Data and Verification

All financials on this page come from each organization's IRS Form 990 — the federal information return that 501(c)(3) public charities, private foundations, and most other tax-exempt organizations must file annually. The Form 990 is a public document. We ingest it primarily through the ProPublica Nonprofit Explorer feed, which mirrors the IRS Tax-Exempt Organization Search dataset. Original e-file XML and PDF copies of any return can be looked up directly at the IRS, ProPublica, or the Candid (formerly GuideStar) directory.

Every nonprofit in this list links to a profile page that cites the source filing year. The original Form 990 is available free at the IRS Tax Exempt Organization Search, the ProPublica Nonprofit Explorer, and the Candid (GuideStar) directory.

Frequently Asked Questions

How many environment & animals nonprofits are based in Montana?

4 organizations are categorized as Environment & Animals on the IRS Form 990 and list a Montana principal office address. Combined annual revenue is $150.2M; average Efficiency Score across the group is 70/100.

Are these all the environment & animals charities operating in Montana?

Not necessarily. The list reflects organizations whose Form 990 lists Montana as the principal office. National environment & animals charities that operate programs in Montana but headquarter elsewhere appear in their home state’s page instead.

What does the average Efficiency Score of 70/100 represent?

It is the simple average of the NonprofitTruth Efficiency Score across the 4 organizations on this page. The Score weights program-spending ratio (50%), revenue-growth consistency (20%), reserves (20%), and CEO-comp ratio (10%). It is descriptive of financial structure, not of program impact.

Why might two environment & animals nonprofits in Montana score very differently?

Common drivers: a difference in revenue scale (which affects fixed-cost ratios), a capital-campaign year on one side that distorts the program ratio, a reliance on professional fundraisers (counted outside program services on Form 990), or a different mix of program-vs-administrative classification by the organization’s auditor. The 990’s Schedule O narrative usually explains unusual movements.

Where can I see the original Form 990 for these environment & animals charities?

Each organization links to a profile that cites the source filing year. From the profile, the original return is one click away on the IRS Tax Exempt Organization Search and on the ProPublica Nonprofit Explorer.

4 environment & animals nonprofits headquartered in Montana report combined revenue of $150.2M on their most recent IRS Form 990 filings, with an average Efficiency Score of 70/100.