Mission
To increase the appreciation, understanding, and conservation of plants and plant communities native to the Colorado Plateau.
Public Charity
Transition Zone Horticultural Inst
Transition Zone Horticultural Inst, of Flagstaff, AZ, is a Public Charity tracked in Imperigo's IRS 990 database. The 2024 filing shows $938K in revenue, $732K in expenses, $2.8M in total assets. 23 publicly reported grants to this organization, totaling roughly $530K, appear in IRS filings.
EIN: 942788812
Flagstaff, AZ
Botanical, Horticultural & Landscape Services
NTEE: C40
Latest filing: 2024
Total Revenue$938K
Total Expenses$732K
Total Assets$2.8M
Grant Records23
Funding Total$530K
Filing Years2020–2024
Where $100 goes at Transition Zone Horticultural Inst
How Transition Zone Horticultural Inst divides every $100 it spends, from its own Form 990 filings, averaged across 8 years.
$71
Programs
the work itself
$23
Management
running the organization
$6
Fundraising
raising the next dollar
Inside the $71 for programs
$29
Public Botanical Gardens
$28
Conservation of Native Plants
$14
Environmental Education
Source: Form 990 filings with the IRS, latest fiscal year 2024. Shares are from the organization's reported expenses. Data by Imperigo; not affiliated with the IRS.
Sample Grants Received
PLANT SPONSORSHIP PAYOUT & INSTITUTION WORK FOR SEED COLLECTION
$26,250
EXPERIENTIAL EDUCATION PROGRAMS AT THE ARBORETUM
$71,181
PLANT SPONSORSHIP AND NATIONAL COLLECTION PAYOUT
$21,250
For grant recipient's exempt purposes
$14,250
BOTANICAL GARDENS & ARBORETA
$10,000
Showing up to 5 of 23 total records — full history available with membership.
Officers & Directors
Trustee
Austin Leggett
Trustee
Brian Webb
Trustee
Celia Holm
Trustee
David Grede
President
Dennis Kruse
Secretary
Ellen Wade
Officer compensation and complete director data available with membership.
Top Grant Purposes
Financial Trends
| Year | Revenue | Expenses | Assets |
|---|---|---|---|
| 2024 | $938K | $732K | $2.8M |
| 2023 | $855K | $735K | $2.7M |
| 2022 | $666K | $977K | $2.5M |
| 2021 | $827K | $719K | $2.9M |
| 2020 | $604K | $614K | $2.8M |
Between 2020 and 2024, reported annual revenue grew from $604K to $938K (+55%), with total assets most recently reported at $2.8M.
Interactive year-over-year charts and full filing details available with membership.