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Center for Biological Diversity Inc

The center for biological diversity inc, works to secure a future for all species, great and small, hovering on the brink of extinction. We do so through science, …

Animal Welfare Tucson, AZ EIN: 273943866 (IRS) Reg: 27-3943866 (IRS) Sign up to see website
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80
Integrity Assessment
Strong transparency
80/100 · methodology

About Center for Biological Diversity Inc

At the Center for Biological Diversity, we believe that the welfare of human beings is deeply linked to nature - to the existence in our world of a vast diversity of wild animals and plants. Because diversity has intrinsic value, and because its loss impoverishes society, we work to secure a future for all species, great and small, hovering on the brink of extinction. We do so through science, law and creative media, with a focus on protecting the lands, waters and climate that species need to survive.

Founded
Headquarters
Tucson, AZ
Foundation type
Publicly-supported charity (509(a)(2))
NTEE code
D20
IRS subsection
501(c)(03)
Ruling date
Size
large
Operating in
United States

Verified certifications

Confirmed against the issuing authority - not self-reported.

IRS Tax-Deductible since 2011

Mission

The center for biological diversity inc, works to secure a future for all species, great and small, hovering on the brink of extinction. We do so through science, law and creative media, with a focus on protecting the lands, waters and climate that species need to survive.

Focus areas & reach

· What they work on and where
Cause tags
SDG alignment The 17 UN Sustainable Development Goals (SDGs) are the global agenda for ending poverty, protecting the planet, and ensuring prosperity by 2030. We tag each charity to the goals its work advances.
Operating countries (1)
United States

How it stacks up against peers

· vs. 6 similar animal welfare in United States
Program spending This charity: 88%
Peer average: 83%
CEO comp as % of revenue This charity: 0.65%
Peer average: 0.48%
Integrity Assessment This charity: 80
Peer average: 90

Concerns

· None found
No red flags found
Screened for IRS revocation history, Open investigations, Governance scandals, Related-party deals, Excessive exec comp.

Where every $1 goes

· FY2024 · IRS 990 (FY2024)
$0.88
Program$0.88
88% to programs beats the peer average (83%) and beats the Charity Navigator "highly efficient" threshold (75%).

GiveRadar Analysis

Original analysis from GiveRadar's dataset of comparable organizations

Based on the records currently verified by GiveRadar, Center for Biological Diversity Inc has a complete profile, cross-referenced across 6 independent sources including the IRS.

  • GiveRadar has cross-referenced this organization across 6 independent sources, led by the IRS - among the most thoroughly sourced profiles in its cohort. See the sources
  • GiveRadar holds 15 years of financial filings for this organization, the most recent for fiscal year 2024 - a deeper filing history than 99% of the 16,398 animal welfare charities in the United States with filings on record. See the filings
  • GiveRadar holds a more complete profile for this organization than for 93% of the 40,468 animal welfare charities in the United States it tracks, because GiveRadar has verified its financial disclosures and its governance. Most of those have little verified data on record yet. View this cohort
GiveRadar has verified
  • government registration
  • financial records (15 filed years)
  • disclosed leadership
  • a website
  • a contact email
  • a donation page
Not yet verified by GiveRadar
  • an owner-submitted profile claim

Analysis based on GiveRadar's benchmark dataset of 2026-07-03. It describes what GiveRadar has verified, not a judgment of the organization itself.

Common questions

· Auto-generated from filings + methodology

Center for Biological Diversity Inc is a registered animal welfare nonprofit based in Tucson, AZ, United States. It is registered with the Internal Revenue Service (IRS). It was founded in 2012 and has been operating for 14 years. Its EIN is 273943866. According to GiveRadar's records, it holds active tax-deductible status on the IRS Publication 78 list, which means donations are tax-deductible and the organization is in good standing with the IRS. GiveRadar's Integrity Assessment for the organization is 80/100, which reflects how much public information is available, not whether the charity is legitimate. The organization reports $46M in annual revenue. 75 officers and directors are publicly disclosed. No red flags have been detected.

Center for Biological Diversity Inc's EIN (Employer Identification Number) is 273943866. This is the organization's IRS tax identification number; you can use it to verify tax-exempt status and to look up its Form 990 filings with the IRS.

Center for Biological Diversity Inc has a GiveRadar Integrity Assessment of 80/100. This score combines five components: Registration (20 pts), Financial Transparency (30 pts), Governance (20 pts), Contact Availability (10 pts), and Data Recency (20 pts), with negative adjustments for any red flags. A score of 80 ('Strong transparency') reflects well-documented governance, recent financials, named leadership, and working contact details. The charity allocates 88% of expenses to programs, which contributes positively to its score. For comparison, the average integrity assessment for animal welfare charities in United States is 90/100.

Center for Biological Diversity Inc is located in Tucson, AZ, United States. The organization was established in 2012 and has been active for 14 years.

Based on official tax filings, Center for Biological Diversity Inc has $46M in annual revenue. It allocates 88% of expenses to programs and services. This is above the average of 83% for animal welfare charities in United States. Its revenue is significantly above the peer average of $1M. Create a free GiveRadar account to view the complete financial breakdown with year-over-year trends.

Center for Biological Diversity Inc is classified as an Animal Welfare organization, registered in United States. It operates as a Publicly-supported charity (509(a)(2)). By size, it is categorized as a large organization. It has $46M in annual revenue. The organization has 75 disclosed officers and directors.

No red flags have been detected for Center for Biological Diversity Inc. GiveRadar automatically screens charities for concerning patterns including high executive compensation, low program spending, and missing financial filings. Based on available official data, no issues have been identified.

According to GiveRadar's records, Center for Biological Diversity Inc holds active tax-deductible status on the IRS Publication 78 list, which means donations are tax-deductible and the organization is in good standing with the IRS. It is registered with the Internal Revenue Service (IRS). It reports that 88% of expenses go to programs (the peer average is 83%). You can donate directly through their official donation page linked on their GiveRadar profile. GiveRadar provides data for research and does not endorse any organization. A GiveRadar Integrity Assessment reflects how much public data is available, not whether an organization is safe to donate to, so it is always smart to do your own research before giving.

At the Center for Biological Diversity, we believe that the welfare of human beings is deeply linked to nature - to the existence in our world of a vast diversity of wild animals and plants. Because diversity has intrinsic value, and because its loss impoverishes society, we work to secure a future for all species, great and small, hovering on the brink of extinction. We do so through science, law and creative media, with a focus on protecting the lands, waters and climate that species need to survive. Center for Biological Diversity Inc is classified as an animal welfare organization registered in United States. The organization was founded in 2012.

Among animal welfare charities registered in United States: It allocates 88% of expenses to programs, above the peer average of 83%. Its annual revenue of $46M is well above the peer average of $1M.

Yes, donations to Center for Biological Diversity Inc are generally tax-deductible in the United States. Center for Biological Diversity Inc is a 501(c)(3) tax-exempt organization. Its EIN is 273943866, which you can use for tax filing purposes. Donors can typically deduct contributions on their federal income tax return if they itemize deductions. Consult a tax professional for guidance specific to your situation.

Annual revenue
$10M-$100M
88% to programs
Source: IRS 990 (FY2024) why this matters
Unlock exact figures

Filing history

10 years on file from IRS 990 (FY2024): revenue, expenses, program spending, assets, and liabilities by fiscal year.

Years on record: FY2024, FY2023, FY2022, FY2021, FY2020, FY2019, FY2018, FY2017, FY2016, FY2015.
Financial details are free - with a GiveRadar account

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Taxes

Tax-deductibility for donors

Donations may be tax-deductible for residents of United States under local rules. Confirm with the charity directly.

Always confirm tax treatment with the charity directly or your tax advisor before donating.

Staff & volunteers

From filings and published profiles

Employees
242

Leadership

From FY2024 filing

GU
Guy K••••
Fin & Admin Director

Officers & trustees (22)

Source: Public filings

See full names, roles, and stories

22 officers and trustees on file - free with a GiveRadar account.

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Latest news

From global news sources

10 articles found

From news sources and the organization. Shown for transparency; news never affects the integrity score.

Activity timeline

Filings and press mentions, merged

Center for Biological Diversity seeks Endangered Species Act protections for two Northwest plants - Oregon Public Broadc
Jun 2026
www.opb.org
Center for Biological Diversity sues to protect mussel found in Nevada - KOLO | 8 News Now
Jun 2026
www.kolotv.com
Center for Biological Diversity sues US agency for delayed protection of rare Appalachian salamander
Jan 2026
wbir.com
Center for Biological Diversity files petition to protect rare central Washington mountain flower - krem.com
Dec 2025
www.krem.com
Center for Biological Diversity et al. v. Bureau of Land Management et al. (Willow Project) - NRDC
Jun 2025
www.nrdc.org
Form filed
$45.7M revenue
FY2024
IRS 990
Form filed
$34.5M revenue
FY2023
IRS 990
All Endorsements Are Not the Same—About the Center for Biological Diversity - Triangle Blog Blog
Oct 2023
triangleblogblog.com
Form filed
$27.6M revenue
FY2022
IRS 990
Form filed
$36.7M revenue
FY2021
IRS 990
Form filed
$27.3M revenue
FY2020
IRS 990
A Ratty Conversation with the Center for Biological Diversity - American Council on Science and Health
Jul 2020
www.acsh.org
Form filed
$22.6M revenue
FY2019
IRS/ProPublica
Center for Biological Diversity and others file injunction to stop border wall - KOLD
Aug 2019
www.kold.com
Form filed
$20.5M revenue
FY2018
IRS/ProPublica
Form filed
$20.1M revenue
FY2017
IRS/ProPublica
Scientists challenge Center for Biological Diversity report claiming wild bees near extinction - Genetic Literacy Projec
Apr 2017
geneticliteracyproject.org
Form filed
$14.8M revenue
FY2016
IRS/ProPublica
A Subsidy Lesson for the Center for Biological Diversity and the Solar Lobby - The Institute for Energy Research
Oct 2016
www.instituteforenergyresearch.org
Form filed
$12.4M revenue
FY2015
IRS/ProPublica

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Cause areas in United States

How many charities work in each area, with this charity's area highlighted.

Human Services 322,679
Education 195,586
Arts & Culture 133,128
Advocacy & Civil Rights 128,026
Religion 114,636
Health 98,862
Community Development 56,086
Youth Development 53,450
Animal Welfare this charity 40,468
See all cause areas in United States

Most common causes in United States

Causes charities work on most.

Community Development 235,146
Education 159,016
Religion 103,741
Arts & Culture 101,203
Human Rights 76,926
Health 65,250
Youth Development 47,775
Animal Welfare 32,425

Sources and verification

Registration and legal identity
Internal Revenue Service (IRS) - Tax Exempt Organization Search
Financial filings
IRS Form 990 filings - Fiscal year 2024 most recent on file.
Officers and trustees
Internal Revenue Service (IRS) - Tax Exempt Organization Search - 75 disclosed in the public registry.
News and media coverage
GDELT Project + Google News
Supplementary verification
ProPublica Nonprofit Explorer
Supplementary verification
GlobalGiving partner directory
Supplementary verification
Charity Navigator

Data freshness

Last updated
Jun 12, 2026
Registry checked
Jun 6, 2026
Profile completeness
100%

What we know and don't know

Exactly which public data we hold on this charity. Our score reflects transparency, not impact.

On record · 10
  • Financial data · FY2024 on record
  • Named leadership · 75 officers on file
  • Executive pay · Disclosed
  • Government registration · Registered with an official registry
  • Mission statement · Published
  • Official website · On record
  • Headquarters address · On file
  • Direct contact · Email or phone published
  • Tax-deductibility · Verified
  • Founding date · 2012
Not available · 1
  • Programs & activities
    No named programs listed by the charity

Methodology

GiveRadar builds each profile primarily from official government charity registries, supplemented where available by third-party nonprofit databases and news archives, and combines it into a single 0-100 integrity assessment. The exact sources for this charity are listed above. We don't take a cut of any donation, ever.

Read full methodology

Are you the owner or a board member?

If you represent this organization and want to correct or update its data, you can claim this listing to edit details yourself, or email [email protected] with the correct information. We review every request and respond within 30 days.

Quick facts about Center for Biological Diversity Inc

What is Center for Biological Diversity Inc?
Center for Biological Diversity Inc is a animal welfare publicly-supported charity (509(a)(2)) based in Tucson, United States. At the Center for Biological Diversity, we believe that the welfare of human beings is deeply linked to nature - to the existence in our world of a vast diversity of wild animals and plants. Because diversity has intrinsic value, and because its loss impoverishes society, we work to secure a future for all species, great and small, hovering on the brink of extinction. We do so through science, law and creative media, with a focus on protecting the lands, waters and climate that species need to survive.
When was Center for Biological Diversity Inc founded?
Center for Biological Diversity Inc was founded in 2012.
Who leads Center for Biological Diversity Inc?
Guy Kuawu serves as Fin & Admin Director.
Where is Center for Biological Diversity Inc located?
Headquartered in Tucson, AZ, United States.
What is Center for Biological Diversity Inc's annual budget?
Annual revenue for fiscal year 2024 is approximately $10M-$100M. 88% of expenses go to program services.
Is Center for Biological Diversity Inc trustworthy?
Center for Biological Diversity Inc has a GiveRadar Integrity Assessment of 80 out of 100 (Strong transparency). The score reflects public-data transparency: registration, financial disclosure, governance, contact details, and how recently data was refreshed. It does not measure program impact.
What is Center for Biological Diversity Inc's registration number?
IRS EIN: 273943866. Registration: 27-3943866 (United States).
What is Center for Biological Diversity Inc's website?
http://www.biologicaldiversity.org