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International Society of Exposure Science

EIN 22-3022846 · Sheridan, WY

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

LegitimacyPassesRegistration and standingFinancial healthGood75 out of 100GovernanceFair64 out of 100Impact evidenceDescribes programsHow well its results are evidenced

What it says it does

ISES WORKS TO MEET HUMANITY'S NEEDS FOR PUBLIC HEALTH AND ENVIRONMENTAL PROTECTION THROUGH A GLOBAL COMMUNITY OF EXPOSURE SCIENCE PROFESSIONALS. ISES ENCOURAGES THE OPEN EXCHANGE OF INFORMATION, PROVIDES OPPORTUNITIES FOR CAREER DEVELOPMENT, AND ACKNOWLEDGES AND PROMOTES EXCELLENCE IN THE PRACTICE OF EXPOSURE ASSESSMENTS AND RESEARCH IN THE FIELD OF EXPOSURE SCIENCE.

Income
$684,146
Spending
$574,875
Spent on programs
76%
Reserves
3.1 months of spending
Largest source of income
fees for its services, 91%
Employees
0
Volunteers
15

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

Good: 75 out of 100. Higher than 42% of charities in its peer group (science, $250k to $1m).

  • Reserves

    20 of 35

    Spendable reserves would cover 3.1 months of spending.

  • Debt

    10 of 20

    It owes 34% of what it owns.

  • Living within its means

    15 of 15

    Income exceeded spending by 16% of income.

  • Income trend

    15 of 15

    Income rose 0% on the year before.

  • Spending floor

    15 of 15

    76% of spending went to programs and raising each dollar of donations cost 0 cents.

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: 64 out of 100. Higher than 37% of charities in its peer group (science, $250k to $1m).

  • Independent board

    25 of 25

    15 of 15 voting board members are independent.

  • Conflict of interest policy

    15 of 15

    Has a 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

    0 of 10

    Did not give 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. $420,531 spent. ANNUAL CONFERENCES (INCLUDING CONFERENCE MANAGMENT): ISES HOLDS AN ANNUAL CONFERENCE EACH YEAR. THE ANNUAL CONFERENCE BRINGS TOGETHER SCIENTISTS FROM THROUGHOUT THE WORLD TO EXCHANGE IDEAS AND METHODS FOR RESEARCH IN EXPOSURE SCIENCE. IT PROVIDES A FORUM FOR COMMUNICATION OF CURRENT EPIDEMIOLOGIC RESEARCH, FACILITATES INTERNATIONAL COLLABORATION IN RESEARCH AND TRAINING, AND HIGHLIGHTS EMERGING GLOBAL ENVIRONMENTAL HEALTH ISSUES, MOST ISES ANNUAL CONFERENCES ARE HELD IN THE UNITED STATES, APPROXIMATELY EVERY THREE TO FOUR YEARS THE CONFERENCE IS HELD OUTSIDE NORTH AMERICA TO PROVIDE ACCESS FOR THE INTERNATIONAL MEMBERSHIP.
  2. $20 spent. OFFICIAL JOURNAL: THE OFFICIAL JOURNAL OF ISES IS THE JOURNAL OF EXPOSURE SCIENCE AND ENVIRONMENTAL EPIDEMIOLOGY. ALL MEMBERS RECEIVE A ONE YEAR ONLINE-ONLY SUBSCRIPTION TO THIS BI-MONTHLY, PEER REVIEWED JOURNAL FOR EACH YEAR OF MEMBERSHIP. MEMBERS OF THE SOCIETY MAINTAIN EDITORIAL CONTROL OF THE JOURNAL. THE EDITOR-IN-CHIEF AND ASSOCIATE EDITORS ARE SOCIETY MEMBERS. THE SOCIETY PAYS THE JOURNAL PUBLISHER, SPRINGERNATURE, A PER-COPY COST FOR EACH ISSUE PROVIDED TO THE MEMBERS. THERE IS NO DIFFERENCE IN THE COST FROM PROVIDING THE ISSUE TO MEMBERS INSIDE OR OUTSIDE THE UNITED STATES.
  3. $15,890 spent. OTHER PROGRAM SERVICES: STUDENT AND NEW RESEARCHER TRAVEL AND ACHIEVEMENT AWARDS-AN ACTIVE STUDENT AND NEW RESEARCHER COMMITTEE ORGANIZES A SPECIAL RECOGNITION AT THE ISES ANNUAL CONFERENCE FOR STUDENT ABSTRACTS AND PROMOTES INTERACTION WITH PEERS AND MENTORS DURING THE CONFERENCE AND THROUGH THE INTERNET THROUGHOUT THE YEAR. ISES PROVIDES TRAVEL AWARDS TO ISES STUDENTS AND NEW RESEARCHER MEMBERS ATTENDING THE CONFERENCE AND PRESENTING THEIR SCIENTIFIC WORK THROUGH POSTERS AND ABSTRACTS. A POSTER COMPETITION FOR ISES STUDENTS ALSO PROVIDES CASH AWARDS FOR THE MOST OUTSTANDING POSTER PRESENTATIONS. SCIENTIFIC ACHIEVEMENT AWARDS PROGRAM-ISES RECOGNIZES OUTSTANDING SCIENTISTS WITH FOUR AWARDS. MOST OF THESE ARE AWARDED ANNUALLY. NOMINATIONS FOR EACH OF THESE AWARDS ARE SOLICITED ANNUALLY FROM THE MEMBERSHIP, AND THE AWARDS ARE PRESENTED AT THE ANNUAL ISES CONFERENCE. THE ISES AWARDS COMMITTEE PUBLICIZES THE AWARDS THROUGH THE SOCIETY WEBSITE, E-MAIL, AND OTHER CHANNELS, REVIEWS AND SELECTS THE AWARDEES, AND ADMINISTERS THE AWARDS. THE JEROME J. WESOLOWSKI AWARD RECOGNIZES OUTSTANDING CONTRIBUTIONS TO THE KNOWLEDGE AND PRACTICE OF HUMAN EXPOSURE ASSESSMENT. THE AWARDEE RECEIVES 2,500 AND PRESENTS THE WESOLOWSKI LECTURE AT THE ISES ANNUAL CONFERENCE. THE JOAN M. DAISEY OUTSTANDING YOUNG SCIENTIST AWARD RECOGNIZES OUTSTANDING CONTRIBUTIONS TO THE SCIENCE OF HUMAN EXPOSURE ANALYSIS BY A YOUNG SCIENTIST. THE AWARDEE RECEIVES AN ISES MEMBERSHIP FOR ONE YEAR AND 1,000. THE CONSTANCE L. MEHLMAN AWARD RECOGNIZES OUTSTANDING CONTRIBUTIONS IN EXPOSURE ANALYSIS RESEARCH THAT HELPED SHAPE A NATIONAL OR STATE POLICY OR THAT PROVIDED NEW APPROACHES FOR REDUCTION OR PREVENTION EXPOSURES. THIS AWARD IS PRESENTED EVERY OTHER YEAR OR LESS FREQUENTLY, BASED ON NOMINATIONS RECEIVED. THE AWARDEE RECEIVES 2,000. WEBSITE- THE PUBLIC ISES WEBSITE CONTAINS INFORMATION ABOUT THE HISTORY AND ORGANIZATION OF THE SOCIETY, EG. OFFICERS AND COUNSELORS, COMMITTEES, BYLAWS, CURRENT AND PAST SOCIETY CONFERENCES; EMPLOYMENT OPPORTUNITIES, OTHER EVENTS OF INTEREST, SOCIETY AWARDS, AND EXPOSURE SCIENCE GLOSSARY, AND A SECTION FOR STUDENTS AND NEW RESEARCHERS. THE WEBSITE ALSO INCLUDES EXTERNALLY HOSTED PASSWORD PROTECTED PAGES AVAILABLE TO CURRENT MEMBERS ONLY, PROVIDING ELECTRONIC ACCESS TO THE SOCIETY JOURNAL AND SEARCHABLE MEMBERSHIP DIRECTORY, AND ALLOWING MEMBERS TO JOIN OR RENEW THEIR MEMBERSHIPS AND PAY DUES ONLINE THROUGH A SECURE CREDIT CARD PROCESSOR. OTHER PROGRAM SERVICES: STUDENT AND NEW RESEARCHER TRAVEL AND ACHIEVEMENT AWARDS-AN ACTIVE STUDENT AND NEW RESEARCHER COMMITTEE ORGANIZES A SPECIAL RECOGNITION AT THE ISES ANNUAL CONFERENCE FOR STUDENT ABSTRACTS AND PROMOTES INTERACTION WITH PEERS AND MENTORS DURING THE CONFERENCE AND THROUGH THE INTERNET THROUGHOUT THE YEAR. ISES PROVIDES TRAVEL AWARDS TO ISES STUDENTS AND NEW RESEARCHER MEMBERS ATTENDING THE CONFERENCE AND PRESENTING THEIR SCIENTIFIC WORK THROUGH POSTERS AND ABSTRACTS. A POSTER COMPETITION FOR ISES STUDENTS ALSO PROVIDES CASH AWARDS FOR THE MOST OUTSTANDING POSTER PRESENTATIONS. SCIENTIFIC ACHIEVEMENT AWARDS PROGRAM-ISES RECOGNIZES OUTSTANDING SCIENTISTS WITH FOUR AWARDS. MOST OF THESE ARE AWARDED ANNUALLY. NOMINATIONS FOR EACH OF THESE AWARDS ARE SOLICITED ANNUALLY FROM THE MEMBERSHIP, AND THE AWARDS ARE PRESENTED AT THE ANNUAL ISES CONFERENCE. THE ISES AWARDS COMMITTEE PUBLICIZES THE AWARDS THROUGH THE SOCIETY WEBSITE, E-MAIL, AND OTHER CHANNELS, REVIEWS AND SELECTS THE AWARDEES, AND ADMINISTERS THE AWARDS. THE JEROME J. WESOLOWSKI AWARD RECOGNIZES OUTSTANDING CONTRIBUTIONS TO THE KNOWLEDGE AND PRACTICE OF HUMAN EXPOSURE ASSESSMENT. THE AWARDEE RECEIVES 2,500 AND PRESENTS THE WESOLOWSKI LECTURE AT THE ISES ANNUAL CONFERENCE. THE JOAN M. DAISEY OUTSTANDING YOUNG SCIENTIST AWARD RECOGNIZES OUTSTANDING CONTRIBUTIONS TO THE SCIENCE OF HUMAN EXPOSURE ANALYSIS BY A YOUNG SCIENTIST. THE AWARDEE RECEIVES AN ISES MEMBERSHIP FOR ONE YEAR AND 1,000. THE CONSTANCE L. MEHLMAN AWARD RECOGNIZES OUTSTANDING CONTRIBUTIONS IN EXPOSURE ANALYSIS RESEARCH THAT HELPED SHAPE A NATIONAL OR STATE POLICY OR THAT PROVIDED NEW APPROACHES FOR REDUCTION OR PREVENTION EXPOSURES. THIS AWARD IS PRESENTED EVERY OTHER YEAR OR LESS FREQUENTLY, BASED ON NOMINATIONS RECEIVED. THE AWARDEE RECEIVES 2,000. WEBSITE- THE PUBLIC ISES WEBSITE CONTAINS INFORMATION ABOUT THE HISTORY AND ORGANIZATION OF THE SOCIETY, EG. OFFICERS AND COUNSELORS, COMMITTEES, BYLAWS, CURRENT AND PAST SOCIETY CONFERENCES; EMPLOYMENT OPPORTUNITIES, OTHER EVENTS OF INTEREST, SOCIETY AWARDS, AND EXPOSURE SCIENCE GLOSSARY, AND A SECTION FOR STUDENTS AND NEW RESEARCHERS. THE WEBSITE ALSO INCLUDES EXTERNALLY HOSTED PASSWORD PROTECTED PAGES AVAILABLE TO CURRENT MEMBERS ONLY, PROVIDING ELECTRONIC ACCESS TO THE SOCIETY JOURNAL AND SEARCHABLE MEMBERSHIP DIRECTORY, AND ALLOWING MEMBERS TO JOIN OR RENEW THEIR MEMBERSHIPS AND PAY DUES ONLINE THROUGH A SECURE CREDIT CARD PROCESSOR.

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 2024.

    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 1992.

    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.