Charities United States Animal Welfare Zoological Society of Cincinnati
Zoological Society of Cincinnati logo

Zoological Society of Cincinnati

Creating adventure, conveying knowledge, conserving nature, serving community.

Animal Welfare Cincinnati, OH EIN 310537171 · IRS Sign up to see website
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83
Integrity Assessment
Strong transparency
83/100 · methodology

About Zoological Society of Cincinnati

Learn more about the Cincinnati Zoo, internationally known for its success in the protection and propagation of endangered animals and plants.

Founded
Headquarters
Cincinnati, OH
Foundation type
Publicly-supported charity (509(a)(2))
NTEE code
D500
IRS subsection
501(c)(c3)
Ruling date
Size
large

Verified certifications

Confirmed against the issuing authority - not self-reported.

IRS Tax-Deductible since 1941

Mission

Creating adventure, conveying knowledge, conserving nature, serving community.

Focus areas & reach

· What they work on and where
Animal Welfare · NTEE D500
Cause tags

How it stacks up against peers

· vs. 8 similar animal welfare in United States
Program spending This charity: 0%
Peer average: 96%
CEO comp as % of revenue This charity: 0.92%
Peer average: 0.48%
Integrity Assessment This charity: 83
Peer average: 92

Red flags

· All clear
IRS revocation history
Open investigations
Governance scandals
Related-party deals
Excessive exec comp

Common questions

· Auto-generated from filings + methodology

Zoological Society of Cincinnati is a registered animal welfare nonprofit based in Cincinnati, OH, United States. It is registered with the Internal Revenue Service (IRS). It was founded in 1875 and has been operating for 151 years. Its EIN is 310537171. It has a GiveRadar Integrity Assessment of 83/100 (Strong transparency), indicating well-documented governance, financials, and contact details. The organization reports $69M in annual revenue. 203 officers and directors are publicly disclosed. No red flags have been detected.

Zoological Society of Cincinnati has a GiveRadar Integrity Assessment of 83/100. 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 83 ('Strong transparency') reflects well-documented governance, recent financials, named leadership, and working contact details. For comparison, the average integrity assessment for animal welfare charities in United States is 92/100.

Zoological Society of Cincinnati is located in Cincinnati, OH, United States. The organization was established in 1875 and has been active for 151 years.

Based on official tax filings, Zoological Society of Cincinnati has $69M in annual revenue. 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.

Zoological Society of Cincinnati is classified as a 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 $69M in annual revenue. The organization has 203 disclosed officers and directors.

No red flags have been detected for Zoological Society of Cincinnati. 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.

Zoological Society of Cincinnati has a GiveRadar Integrity Assessment of 83/100 (Strong transparency) and no red flags have been detected, which suggests it is a well-documented organization. It is regulated by the IRS. You can donate directly through their official donation page linked on their GiveRadar profile. GiveRadar provides data for research purposes and does not endorse any organization. Always do your own due diligence.

Learn more about the Cincinnati Zoo, internationally known for its success in the protection and propagation of endangered animals and plants. Zoological Society of Cincinnati is classified as a animal welfare organization registered in United States. The organization was founded in 1875.

Among animal welfare charities registered in United States: Zoological Society of Cincinnati's GiveRadar Integrity Assessment of 83/100 is in line with the peer average of 92/100. Its annual revenue of $69M is well above the peer average of $1M.

Yes, donations to Zoological Society of Cincinnati are generally tax-deductible in the United States. Its EIN is 310537171, 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.

Verified against 5 official sources, last refreshed .

Annual revenue
$10M-$100M
0% to programs
Source: IRS 990 (FY2025) why this matters
Unlock exact figures

Filing history

5 years on file from IRS 990 (FY2025): revenue, expenses, program spending, assets, and liabilities by fiscal year.

Years on record: FY2025, FY2024, FY2023, FY2022, FY2021.
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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.

Leadership

LO
Lori Voss
VP & CFO

Officers & trustees (25)

Source: Public filings

AD
Adam M••••••
TRUSTEE
AL
Albert S•••••••••
TRUSTEE
AN
Anne D••••••
TRUSTEE
AN
Anya S••••••
TRUSTEE
AS
Ashwin R••••••••
TRUSTEE
AU
Austin H••••
TRUSTEE
BI
Bill W•••••
TRUSTEE
BO
Bob C•••••••••
TRUSTEE
BO
Bob C•••••••
TRUSTEE
BR
Brett H•••••
TRUSTEE
CA
Cathy C••••
TRUSTEE
CH
Chad Y•••••
VP: MARKETING
CH
Chris B•••••••
TRUSTEE
CR
Craig Y••••
TRUSTEE
DA
Daniel R••••••
TRUSTEE
DE
Dean V•••••••
Director
DO
Doug B•••••••••
TRUSTEE
EI
Eileen B••••••
TRUSTEE
FR
Francie S H••••
IMMEDIATE PAST CHAIR
GE
George J•••••
VICE CHAIRMAN
GE
George M•••••••
CHAIRMAN
GI
Gigi H••••
TRUSTEE
GR
Greg T•••••
TRUSTEE
JA
Jack O••••• I•
TRUSTEE
JA
Jane N•••••••••
TRUSTEE
Full names, contact details & compensation

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Latest news

From global news sources

No recent news coverage found

News coverage will appear here when articles mention this organization.

Activity timeline

Filings and press mentions, merged

Form filed
$69.4M revenue
FY2025
IRS_990
Form filed
$119.6M revenue
FY2024
IRS_990
Form filed
$73.1M revenue
FY2023
IRS_990
Form filed
$86.9M revenue
FY2022
IRS_990
Form filed
$51.2M revenue
FY2021
IRS_990

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Peer charities

Other animal welfare in United States, by integrity assessment

Charity Score Revenue Program %
Zoological Society of Cincinnati This page 83 $69.4 million -
Critter Encounters 93 $230,370 100%
Wedrose Acres 93 $114,491 99%
Spca of Tennessee 93 $189,417 83%
Arizona Poodle Rescue Inc 93 $658,982 100%
Better Days Inc 93 $181,989 99%
Fifty Shades of Furr Inc 93 $314,656 94%
Bullpen Way Station & Sanctuary Ltd 90 $151,835 93%
Clay County Animal Rescue & Education Center Inc 90 $136,295 100%

Sources and verification

Refreshed

Registration and legal identity
Internal Revenue Service (IRS) - Tax Exempt Organization Search
Financial filings
IRS Form 990 filings - Fiscal year 2025 most recent on file.
Officers and trustees
Internal Revenue Service (IRS) - Tax Exempt Organization Search - 203 disclosed in the public registry.
News and media coverage
GDELT Project + Google News
Supplementary verification
Charity Navigator

Data freshness

Last updated
May 27, 2026
Profile completeness
90%

What we don't know

Honest gaps - our score reflects transparency, not impact

Programs & projects
No named programs listed by the charity
Operating reach
Countries where programs run not specified

Methodology

GiveRadar combines public registry filings, ProPublica Nonprofit Explorer, Charity Navigator, GuideStar, and news archives into a single 0-100 integrity assessment. We don't take a cut of any donation, ever.

Read full methodology

Quick facts about Zoological Society of Cincinnati

What is Zoological Society of Cincinnati?
Zoological Society of Cincinnati is a animal welfare publicly-supported charity (509(a)(2)) based in Cincinnati, United States. Learn more about the Cincinnati Zoo, internationally known for its success in the protection and propagation of endangered animals and plants.
When was Zoological Society of Cincinnati founded?
Zoological Society of Cincinnati was founded in 1875.
Who leads Zoological Society of Cincinnati?
Lori Voss serves as VP & CFO.
Where is Zoological Society of Cincinnati located?
Headquartered in Cincinnati, United States.
What is Zoological Society of Cincinnati's annual budget?
Annual revenue for fiscal year 2025 is approximately $10M-$100M. 0% of expenses go to program services.
Is Zoological Society of Cincinnati trustworthy?
Zoological Society of Cincinnati has a GiveRadar Integrity Assessment of 83 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 Zoological Society of Cincinnati's registration number?
IRS EIN: 310537171.
What is Zoological Society of Cincinnati's website?
https://www.cincinnatizoo.org