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Avalonia Land Conservancy Inc

To preserve natural habitats in southeastern ct by acquiring and protecting land and by communicating the value of these irreplaceable resources.

Environment Old Mystic, CT EIN: 066103893 (IRS) Sign up to see website
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76
Integrity Assessment
Strong transparency
76/100 · methodology

About Avalonia Land Conservancy Inc

Become Rooted in What Calls to You Avalonia works to acquire, protect, and maintain land of high conservation and habitat value; combat climate change for the benefit of people and…

Founded
Headquarters
Old Mystic, CT
Foundation type
Supporting organization (509(a)(3))
NTEE code
C340
IRS subsection
501(c)(03)
Ruling date
Size
medium

Verified certifications

Confirmed against the issuing authority - not self-reported.

IRS Tax-Deductible since 1968

Mission

To preserve natural habitats in southeastern ct by acquiring and protecting land and by communicating the value of these irreplaceable resources.

Focus areas & reach

· What they work on and where

How it stacks up against peers

· vs. 8 similar environment in United States
Program spending This charity: 63%
Peer average: 78%
Integrity Assessment This charity: 76
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)
$0.63
Program$0.63

GiveRadar Analysis

Original analysis from GiveRadar's dataset of comparable organizations

From what GiveRadar has verified so far, Avalonia Land Conservancy Inc has a complete profile, cross-referenced across 3 independent sources including the IRS.

  • Established in 1968, it predates 90% of the environment charities in the United States GiveRadar has a founding year for. View this cohort
  • It is one of the better-documented environment charities in the United States GiveRadar currently tracks, because GiveRadar has verified its financial disclosures and its registration. Most of those have little verified data on record yet. View this cohort
  • It has more complete contact information than nearly all similar organizations, with a verified website, email, phone and address on record. See national comparisons
GiveRadar has verified
  • government registration
  • financial records (5 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

Avalonia Land Conservancy Inc is a registered environment nonprofit based in Old Mystic, CT, United States. It is registered with the Internal Revenue Service (IRS). It was founded in 1968 and has been operating for 58 years. Its EIN is 066103893. 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 76/100, which reflects how much public information is available, not whether the charity is legitimate. The organization reports $1M in annual revenue. 42 officers and directors are publicly disclosed. No red flags have been detected.

Avalonia Land Conservancy Inc's EIN (Employer Identification Number) is 066103893. 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.

Avalonia Land Conservancy Inc has a GiveRadar Integrity Assessment of 76/100. 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 76 ('Strong transparency') reflects well-documented governance, recent financials, named leadership, and working contact details. For comparison, the average integrity assessment for environment charities in United States is 90/100.

Avalonia Land Conservancy Inc is located in Old Mystic, CT, United States. The organization was established in 1968 and has been active for 58 years.

Based on official tax filings, Avalonia Land Conservancy Inc has $1M in annual revenue. It allocates 63% of expenses to programs and services. This is below the average of 78% for environment charities in United States. Create a free GiveRadar account to view the complete financial breakdown with year-over-year trends.

Avalonia Land Conservancy Inc is classified as an Environment organization, registered in United States. It operates as a Supporting organization (509(a)(3)). By size, it is categorized as a medium organization. It has $1M in annual revenue. The organization has 42 disclosed officers and directors.

No red flags have been detected for Avalonia Land Conservancy 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, Avalonia Land Conservancy 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 63% of expenses go to programs (the peer average is 78%). 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.

Become Rooted in What Calls to You Avalonia works to acquire, protect, and maintain land of high conservation and habitat value; combat climate change for the benefit of people and… Avalonia Land Conservancy Inc is classified as an environment organization registered in United States. The organization was founded in 1968.

Among environment charities registered in United States: It allocates 63% of expenses to programs, below the peer average of 78%. Its annual revenue of $1M is comparable to the peer average of $2M.

Yes, donations to Avalonia Land Conservancy Inc are generally tax-deductible in the United States. Avalonia Land Conservancy Inc is a 501(c)(3) tax-exempt organization. Its EIN is 066103893, 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
$1M-$10M
63% to programs
Source: IRS 990 (FY2024) why this matters
Unlock exact figures

Filing history

5 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.
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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
4

Leadership

From FY2024 filing

MA
Mark H••••••
Treasurer

Officers & trustees (14)

Source: Public filings

See full names, roles, and stories

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

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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
$1.4M revenue
FY2024
IRS 990
Form filed
$1.7M revenue
FY2023
IRS 990
Form filed
$1.5M revenue
FY2022
IRS 990
Form filed
$0.7M revenue
FY2021
IRS 990
Form filed
$1.4M revenue
FY2020
IRS 990

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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
Environment this charity 30,143
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 - 42 disclosed in the public registry.
Supplementary verification
Charity Navigator

Data freshness

Last updated
Jun 12, 2026
Registry checked
Jun 6, 2026
Profile completeness
75%

What we know and don't know

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

On record · 9
  • Financial data · FY2024 on record
  • Named leadership · 42 officers on file
  • 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 · 1968
Not available · 2
  • Executive pay
    Top-officer pay not disclosed
  • 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 Avalonia Land Conservancy Inc

What is Avalonia Land Conservancy Inc?
Avalonia Land Conservancy Inc is a environment supporting organization (509(a)(3)) based in Old Mystic, United States. Become Rooted in What Calls to You Avalonia works to acquire, protect, and maintain land of high conservation and habitat value; combat climate change for the benefit of people and…
When was Avalonia Land Conservancy Inc founded?
Avalonia Land Conservancy Inc was founded in 1968.
Who leads Avalonia Land Conservancy Inc?
Mark Hibbard serves as Treasurer.
Where is Avalonia Land Conservancy Inc located?
Headquartered in Old Mystic, CT, United States.
What is Avalonia Land Conservancy Inc's annual budget?
Annual revenue for fiscal year 2024 is approximately $1M-$10M. 63% of expenses go to program services.
Is Avalonia Land Conservancy Inc trustworthy?
Avalonia Land Conservancy Inc has a GiveRadar Integrity Assessment of 76 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 Avalonia Land Conservancy Inc's registration number?
IRS EIN: 066103893.
What is Avalonia Land Conservancy Inc's website?
http://www.avalonialandconservancy.org