Lyon Arboretum Association
Fund raising and additional financial support for lyon arboretum located in honolulu, hawaii
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Lyon arboretum's education department is responsible for educational programming including school tours for k-12 classes, nature day camps for children during school breaks, community classes, and guided tours for visitors. They develop curricula for the various programs, maintain the arboretum social media accounts and website, and coordinate volunteers. Funds from the friends of lyon arboretum (fla) are used to support the educational programs including subsidizing field trip costs to the arboretum for title I public schools. The lyon arboretum field trip kokua program helps to bring these students to lyon to experience the wonders of plants and nature in this unique setting. Fla sponsors the arboretums summer internship program for university students to encourage environmental leadership with 10 weeks of …
Verified certifications
Confirmed against the issuing authority - not self-reported.
Mission
Fund raising and additional financial support for lyon arboretum located in honolulu, hawaii
Focus areas & reach
· What they work on and whereHow it stacks up against peers
· vs. 8 similar environment in United StatesConcerns
· None foundWhere every $1 goes
· FY2024 · IRS 990 (FY2024)GiveRadar Analysis
Original analysis from GiveRadar's dataset of comparable organizations
GiveRadar's verified records show Lyon Arboretum Association with a complete profile, cross-referenced across 4 independent sources including the IRS.
- GiveRadar has cross-referenced this organization across 4 independent sources, led by the IRS - more than 97% of comparable organizations. See the sources
- Established in 1975, it predates 85% of the environment charities in the United States GiveRadar has a founding year for. View this cohort
- GiveRadar holds a more complete profile for this organization than for 82% of the 30,143 environment charities in the United States it tracks, because GiveRadar has verified its financial disclosures and its registration. Most of those have little verified data on record yet. View this cohort
- government registration
- financial records (5 filed years)
- disclosed leadership
- a website
- a contact email
- a donation page
- 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 + methodologyLyon Arboretum Association is a registered environment nonprofit based in Honolulu, HI, United States. It is registered with the Internal Revenue Service (IRS). It was founded in 1975 and has been operating for 51 years. Its EIN is 237429693. 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 $392K in annual revenue. 64 officers and directors are publicly disclosed. No red flags have been detected.
Lyon Arboretum Association's EIN (Employer Identification Number) is 237429693. 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.
Lyon Arboretum Association 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. The charity allocates 77% of expenses to programs, which contributes positively to its score. For comparison, the average integrity assessment for environment charities in United States is 90/100.
Lyon Arboretum Association is located in Honolulu, HI, United States. The organization was established in 1975 and has been active for 51 years.
Based on official tax filings, Lyon Arboretum Association has $392K in annual revenue. It allocates 77% of expenses to programs and services. This is above the average of 72% for environment charities in United States. Its revenue is below the peer average of $2M. Create a free GiveRadar account to view the complete financial breakdown with year-over-year trends.
Lyon Arboretum Association is classified as an Environment organization, registered in United States. It operates as a Publicly-supported charity (509(a)(2)). By size, it is categorized as a small organization. It has $392K in annual revenue. The organization has 64 disclosed officers and directors.
No red flags have been detected for Lyon Arboretum Association. 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, Lyon Arboretum Association 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 77% of expenses go to programs (the peer average is 72%). 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.
Lyon arboretum's education department is responsible for educational programming including school tours for k-12 classes, nature day camps for children during school breaks, community classes, and guided tours for visitors. They develop curricula for the various programs, maintain the arboretum social media accounts and website, and coordinate volunteers. Funds from the friends of lyon arboretum (fla) are used to support the educational programs including subsidizing field trip costs to the arboretum for title I public schools. The lyon arboretum field trip kokua program helps to bring these students to lyon to experience the wonders of plants and nature in this unique setting. Fla sponsors the arboretums summer internship program for... Lyon Arboretum Association is classified as an environment organization registered in United States. The organization was founded in 1975.
Among environment charities registered in United States: It allocates 77% of expenses to programs, above the peer average of 72%. Its annual revenue of $392K is below the peer average of $2M.
Yes, donations to Lyon Arboretum Association are generally tax-deductible in the United States. Lyon Arboretum Association is a 501(c)(3) tax-exempt organization. Its EIN is 237429693, 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.
Filing history
5 years on file from IRS 990 (FY2024): revenue, expenses, program spending, assets, and liabilities by fiscal year.
See 5 years of revenue, expense breakdowns, and balance sheet.
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Tax-deductibility for donors
Donations may be tax-deductible for residents of United States under local rules. Confirm with the charity directly.
LYON ARBORETUM ASSOCIATION is registered in United States. Donations from the Netherlands to charities outside the EU/EEA are generally not tax-deductible for Dutch donors unless the charity is listed on the Dutch ANBI register with foreign-recognized status.
Always confirm tax treatment with the charity directly or your tax advisor before donating.
Staff & volunteers
From filings and published profiles
Leadership
From FY2024 filing
Officers & trustees (25)
Source: Public filings
25 officers and trustees on file - free with a GiveRadar account.
Latest news
From global news sources
10 articles found
From news sources and the organization. Shown for transparency; news never affects the integrity score.
Lyon Arboretum joins CTAHR to expand living laboratories for students - University of Hawaii System
Summer 2026 Nature Day Camp | Harold L. Lyon Arboretum - UH Manoa
Grant termination threatens Lyon Arboretum’s seed digitization project - University of Hawaii System
Lyon Arboretum hosts CTAHR event: rare plants, tours, research, more - University of Hawaii System
Spring Plant Sale | Harold L. Lyon Arboretum - UH Manoa
Community Classes: 2024 Winter and Spring Community Classes | Harold L. Lyon Arboretum - UH Manoa
Lyon Arboretum Hawaiʻi rare plant expert retires after 35 years of service - University of Hawaii System
Largest palm collection in N. America right at Lyon Arboretum - University of Hawaii System
Article: Get Lost at Lyon Arboretum in Mānoa - UH Manoa
Get Lost at Lyon Arboretum in Mānoa - HAWAIʻI Magazine
Activity timeline
Filings and press mentions, merged
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Sign up to write a reviewCause areas in United States
How many charities work in each area, with this charity's area highlighted.
Most common causes in United States
Causes charities work on most.
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 - 64 disclosed in the public registry.
- News and media coverage
- GDELT Project + Google News
- Supplementary verification
- Charity Navigator
Data freshness
What we know and don't know
Exactly which public data we hold on this charity. Our score reflects transparency, not impact.
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Financial data · FY2024 on record
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Named leadership · 64 officers on file
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Government registration · Registered with an official registry
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Mission statement · Published
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Official website · On record
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Headquarters address · On file
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Direct contact · Email or phone published
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Tax-deductibility · Verified
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Founding date · 1975
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Executive payTop-officer pay not disclosed
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Programs & activitiesNo 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.
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Quick facts about Lyon Arboretum Association
- What is Lyon Arboretum Association?
- Lyon Arboretum Association is a environment publicly-supported charity (509(a)(2)) based in Honolulu, United States. Lyon arboretum's education department is responsible for educational programming including school tours for k-12 classes, nature day camps for children during school breaks, community classes, and guided tours for visitors. They develop curricula for the various programs, maintain the arboretum social media accounts and website, and coordinate volunteers. Funds from the friends of lyon arboretum (fla) are used to support the educational programs including subsidizing field trip costs to the arboretum for title I public schools. The lyon arboretum field trip kokua program helps to bring these students to lyon to experience the wonders of plants and nature in this unique setting. Fla sponsors the arboretums summer internship program for university students to encourage environmental leadership with 10 weeks of hands-on learning coordinated by the education department. All the departments at the arboretum are involved in engaging these students in the full range of arboretum experiences. This important program has influenced students educational paths and provides a significant connection as they enter their careers. Fla also co-sponsors community educational classes run by the department. Lyon arboretums facilites & maintenance department is responsible for maintaining the approximately 200 acres of arboretum property as well as buildings and other infrastructure. Funds from friends of lyon arboretum (fla) are used for supplies and equipment needed for this very large responsibility. Equipment purchases are made through the university of hawaiI foundation so they are incorporated into the capital lists maintained by the universitys facilities department, and fla does not have any additional responsibilities for maintenance, repair or replacement costs. Support from fla has enabled lyons facilities & maintenance department to operate more efficiently and effectively. The lyon arboretum micropropagation lab has successfully grown over 300 hawaiian plant taxa using mic
- When was Lyon Arboretum Association founded?
- Lyon Arboretum Association was founded in 1975.
- Who leads Lyon Arboretum Association?
- Melissa Duarte-Lopez serves as Treasurer.
- Where is Lyon Arboretum Association located?
- Headquartered in Honolulu, HI, United States.
- What is Lyon Arboretum Association's annual budget?
- Annual revenue for fiscal year 2024 is approximately $100K-$1M. 77% of expenses go to program services.
- Is Lyon Arboretum Association trustworthy?
- Lyon Arboretum Association 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 Lyon Arboretum Association's registration number?
- IRS EIN: 237429693.
- What is Lyon Arboretum Association's website?
- http://www.friendsoflyon.com