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International Society of Infrared Millimeter and Terahertz Waves

EIN 27-0578778 · La Canada, CA

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

LegitimacyPassesRegistration and standingFinancial healthGood85 out of 100GovernanceFair62 out of 100Impact evidenceDescribes programsHow well its results are evidenced

What it says it does

SCIENTIFIC SOCIETY THAT HOSTS ONE SCIENTIFIC CONFERENCE EACH CALENDAR YEAR, PROMOTES THE CONTRIBUTION OF RESEARCH TO TWO SCIENTIFIC JOURNALS (IEEE TRANS. ON TERAHERTZ SCIENCE AND TECHNOLOGY AND JOURNAL OF INFRARED, MILLIMETER, AND TERAHERTZ WAVES), AND SERVES AS STEWARD AND DISTRIBUTOR OF THE KENNETH J BUTTON PRIZE FOR SIGNIFICANT ADVANCES IN THE FIELD OF INFRARED, MILLIMETER, AND TERAHERTZ WAVES. THE SOCIETY IS AN ALL VOLUNTEER ORGANIZATION WITH BY LAWS AND WEBSITE AT WWW.IRMMW-THZ.ORG

Income
$131,333
Spending
$51,440
Spent on programs
95%
Reserves
Over 10 years of spending
Largest source of income
investment income, 59%
Employees
0
Volunteers
0

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: 85 out of 100. Higher than 67% of charities in its peer group (science, under $250k).

  • Reserves

    35 of 35

    Spendable reserves would cover more than ten years of spending.

  • Debt

    20 of 20

    It owes 0% of what it owns.

  • Living within its means

    15 of 15

    Income exceeded spending by 61% of income.

  • Income trend

    0 of 15

    Income fell 54% on the year before.

  • Spending floor

    15 of 15

    95% 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

Fair: 62 out of 100. Higher than 44% of charities in its peer group (science, under $250k).

  • Independent board

    25 of 25

    40 of 40 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.

  • 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 (1)
  1. $48,713 spent. ESTABLISHED AND RELAYED SPECIFIC CONFERENCE GUIDELINES, PROMOTED THE CONFERENCE SERIES, SELECTED THE GENERAL LOCATION, DATE, LENGTH AND PROGRAM FOCUS, ASSURED A HIGH STANDARD OF SCIENTIFIC EXCELLENCE AT EACH VENUE, APPROVED THE LOCAL ORGANIZING COMMITTEE (LOC) CHAIR, AS WELL AS SPECIFIC CONFERENCE LOCATION, DATES, PROGRAM AND FINANCIAL ARRANGEMENTS, ASSISTED WITH INVITED SPEAKER SELECTIONS, MAINTAINED TECHNICAL CO-SPONSORSHIP WITH THE IEEE, ASSURED DIGEST ISSUANCE AND THE ARCHIVING OF PROCEEDINGS, AND BOTH SOUGHT AND MAINTAINED THE ENDORSEMENT AND APPROVAL OF THE ATTENDING SCIENTIFIC COMMUNITY.

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 June 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 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.