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International Association for Vegetation Science Inc

EIN 47-2411429 · Newark, DE

Public records show a registered, tax-exempt organization in good standing.

LegitimacyPassesRegistration and standingFinancial healthStrong100 out of 100GovernanceFair59 out of 100Impact evidenceDescribes programsHow well its results are evidenced

What it says it does

IAVS is a scientific society devoted to study of vegetation at all levels of complexity spanning populations, plant communities and biomes. It attempts to explain vegetation patterns and the processes governing vegetation assembly and dynamics at all temporal and spatial scales.

Income
$334,212
Spending
$261,038
Spent on programs
66%
Reserves
31 months of spending
Largest source of income
other income, 91%
Employees
0
Volunteers
60

Source: Form 990 for the year ending December 31, 2024, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Financial health

Strong: 100 out of 100. Higher than 85% of charities in its peer group (environment, $250k to $1m).

  • Reserves

    35 of 35

    Spendable reserves would cover 31.0 months of spending.

  • Debt

    20 of 20

    It owes 4% of what it owns.

  • Living within its means

    15 of 15

    Income exceeded spending by 22% of income.

  • Income trend

    15 of 15

    Income rose 42% on the year before.

  • Spending floor

    15 of 15

    66% of spending went to programs.

Source: Form 990 for the year ending December 31, 2024, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Governance

Fair: 59 out of 100. Higher than 23% of charities in its peer group (environment, $250k to $1m).

  • Independent board

    25 of 25

    7 of 8 voting board members are independent.

  • Conflict of interest policy

    0 of 15

    Reports no written conflict of interest policy.

  • Whistleblower policy

    0 of 8

    Reports no written whistleblower policy.

  • Record keeping policy

    0 of 7

    Reports no written policy on keeping and destroying records.

  • Board minutes

    5 of 5

    Keeps minutes of board meetings.

  • Board sees the tax return

    10 of 10

    Gave the board a copy of this return before filing it.

  • Independent check of accounts

    6 of 15

    Its accounts were not audited or reviewed by an independent accountant.

  • No reported misuse

    10 of 10

    Reports no diversion of assets, excess benefits or loans to insiders.

Source: Form 990 for the year ending December 31, 2024, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Impact evidence

Describes programs. Its tax return describes what it does but we have found no measurable results in it.

Programs described in its return (3)
  1. $165,751 spent. THE ANNUAL SYMPOSIUM OF THE INTERNATIONAL ASSOCIATION OF VEGETATION SCIENCE PROVIDES MEMBERS WITH THE OPPORTUNITY TO NETWORK WITH VEGETATION SCIENTISTS AND ATTEND THE VARIOUS SCIENTIFIC PROGRAMS AT AN ANNUAL MEETING.
  2. $7,399 spent. THE IAVS PUBLISHES THREE ONLINE JOURNALS: (1) THE JOURNAL OF VEGETATION SCIENCE, WHICH FOCUSES ON ALL ASPECTS OF PLANT COMMUNITY ECOLOGY RELEVANT TO HUMAN INTERACTION WITH VEGETATION, INCLUDING GLOBAL CHANGE, NATURE, CONSERVATION, NATURE MANAGEMENT, RESTORATION OF PLANT COMMUNITITES AND OF NATURAL HABITATS, AND THE PLANNING OF SEMI-NATURAL AND URBAN LANDSCAPE; (2) APPLIED VEGETATION SCIENCE, WHICH FOCUSES ON COMMUNITY-LEVEL TOPICS RELEVANT TO HUMAN INTERACTION WITH VEGETATION AND (3) VEGETATION CLASSIFICATION AND SURVEY, WHICH IS AN INTERNATIONAL, PEER-REVIEWED JOURNAL ON PLANT COMMUNITY ECOLOGY.
  3. THE IAVS BULLETIN IS THE NEWSLETTER OF THE INTERNATIONAL ASSOCIATION FOR VEGETATION SCIENCE. THE BULLETIN CONTAINS ITEMS OF POTENTIAL INTEREST TO THE MEMBERSHIP AND SERVES AS THE OFFICIAL RECORD OF IAVS MEETINGS AND ACTIVITIES. THE IAVS BULLETIN IS PUBLISHED IN DIGITAL FORMAT WITH FOUR ISSUES PER YEAR.

Source: Form 990 for the year ending December 31, 2024, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Legitimacy checks

  1. Is it registered with the IRS? Passed.

    Listed in the IRS master file of tax-exempt organizations as a 501(c)(3) charitable organization.

    Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated October 13, 2026.

  2. Has the IRS revoked its tax-exempt status? Passed.

    Not on the IRS automatic revocation list.

    Source: Automatic revocation of exemption list, Internal Revenue Service, file dated October 13, 2026.

  3. Are donations tax-deductible? Passed.

    On the IRS list of organizations eligible to receive tax-deductible contributions.

    Source: Publication 78 data: organizations eligible for tax-deductible contributions, Internal Revenue Service, file dated October 13, 2026.

  4. Is it keeping up with its IRS filings? Passed.

    Most recent return on file covers the year ending December 2025.

    Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated October 13, 2026.

  5. How long has it been tax-exempt? Passed.

    Recognized by the IRS since May 2016.

    Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated October 13, 2026.

  6. Is it in good standing with state regulators? Passed.

    Not on California's list of charities barred from soliciting. Other states are not yet checked.

    Source: May Not Operate or Solicit for Charitable Purposes list, California Attorney General, Registry of Charities and Fundraisers, file dated October 21, 2026.

Ratings and checks are our reading of public records, using the published method. They are not a statement about anyone's honesty. If you work for this organization, you can send corrections or results, confirm you want gifts through Veridonate, or ask to be removed from giving.