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International Ozone Association Inc

EIN 34-1274149 · Sacramento, CA

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

LegitimacyPassesRegistration and standingFinancial healthGood82 out of 100GovernanceStrong91 out of 100Impact evidenceDescribes programsHow well its results are evidenced

What it says it does

BRINGING TOGETHER SCIENTISITS, ENGINEERS, SYSTEM DESIGNERS, TECHNOLOGISTS, EQUIPMENT MANUFACTURERS AND END USERS TO SHARE THEIR EXPERIENCE AND RESEARCH DATA ON OZONE AND OTHER RELATED OXYGEN COMPOUNDS.

Income
$320,165
Spending
$361,718
Spent on programs
89%
Reserves
7.7 months of spending
Largest source of income
fees for its services, 98%
Employees
0
Volunteers
32

Source: Form 990 for the year ending December 31, 2025, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Financial health

Good: 82 out of 100. Higher than 53% of charities in its peer group (environment, $250k to $1m).

  • Reserves

    28 of 35

    Spendable reserves would cover 7.7 months of spending.

  • Debt

    20 of 20

    It owes 0% of what it owns.

  • Living within its means

    4 of 15

    Spending exceeded income by 13% of income.

  • Income trend

    15 of 15

    Income rose 30% on the year before.

  • Spending floor

    15 of 15

    89% of spending went to programs.

Source: Form 990 for the year ending December 31, 2025, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Governance

Strong: 91 out of 100. Higher than 71% of charities in its peer group (environment, $250k to $1m).

  • Independent board

    25 of 25

    32 of 32 voting board members are independent.

  • Conflict of interest policy

    15 of 15

    Has a written conflict of interest policy.

  • Whistleblower policy

    8 of 8

    Has a written whistleblower policy.

  • Record keeping policy

    7 of 7

    Has a 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, 2025, 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. $257,700 spent. MEMBERSHIP - ACCESS TO THE MOST CUTTING-EDGE INFORMATION ON OZONE TECHNOLOGY AND RESOURCES; INDUSTRY CONNECTIONS; EDUCATIONAL RESOURCES. MEMBER BENEFITS: OPEN ACCESS TO MAJOR RESEARCH AND DEVELOPMENTS THROUGH IOAS PEER REVIEWED SCIENTIFIC JOURNAL, OZONE: SCIENCE AND ENGINEERING; BIMONTHLY UPDATES ON THE LATEST DEVELOPMENTS IN EQUIPMENT, APPLICATIONS AND LITERATURE THROUGH THE IOA NEWSLETTER PUBLICATION, OZONE NEWS; REGISTRATION DISCOUNTS TO ATTEND THE BIENNIAL INTERNATIONAL WORLD CONGRESS AND ANNUAL IOA-PAG CONFERENCE; ONLINE RESOURCE ACCESS TO PAST CONFERENCE PROCEEDINGS, PAST ISSUES OF OZONE NEWS, WEBINARS AND WEBINAR ARCHIVES, AND OZONE APPLICATIONS, INDUSTRIES AND PROCESSES.
  2. $64,791 spent. CONFERENCE - ENCOURAGEMENT, DEVELOPMENT, AND SHARING OF OZONE KNOWLEDGE FOR THE IMPROVEMENT OF HEALTH AND THE ENVIRONMENT. SPEAKERS SHARE NEW IDEAS AND EXPERIENCES RELATED TO THE APPLICATION AND PERFORMANCE OF OZONE. DISCUSSIONS ALLOW ATTENDEES TO LEARN MORE ABOUT INNOVATIVE AND INDUSTRIAL APPLICATIONS.
  3. OZONE NEWS PUBLICATION - BIMONTHLY NEWS MAGAZINE WITH UPDATES ON THE LATEST DEVELOPMENTS IN EQUIPMENT, APPLICATIONS, AND LITERATURE. OZONE NEWS PRESENTS CASE STUDIES, EQUIPMENT ANNOUNCEMENTS, RESEARCH FINDINGS, LITERATURE ABSTRACTS AND MUCH MORE VALUABLE INFORMATION.

Source: Form 990 for the year ending December 31, 2025, 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 November 6, 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 August 1980.

    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 November 4, 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.