Nonprofit · EIN 52-6057050
SOCIETY OF TOXICOLOGY
Tax-exempt · RESTON, VA 20191
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| June 30, 2025 | 990 | $7,921,128 | $7,681,803 | $239,325 | $18,475,923 | $1,413,937 | $17,061,986 |
| June 30, 2024 | 990 | $7,545,400 | $8,076,051 | -$530,651 | $17,386,489 | $1,537,902 | $15,848,587 |
| June 30, 2023 | 990 | $7,575,120 | $7,921,596 | -$346,476 | $16,705,528 | $1,569,131 | $15,136,397 |
Financial details: 990 for the year ended June 30, 2025
Revenue
- Contributions, gifts and grants
- $1,544,785
- Membership dues
- $869,073
- Program service revenue
- $5,115,734
- Investment income
- $595,138
- Royalties
- $655,569
- Net gain from sales of assets
- -$23,166
- Other revenue
- $665,471
Expenses
- Grants and similar amounts paid
- $622,656
- Salaries, compensation and benefits (total)
- $0
- Professional fundraising fees
- $0
- Legal fees
- $10,790
- Accounting fees
- $197,678
- Travel
- $213,881
- Program services (functional)
- $5,699,312
- Management and general (functional)
- $1,969,066
- Fundraising (functional)
- $13,425
Balance sheet and other
- Total assets, start of year
- $17,386,489
- Total assets, end of year
- $18,475,923
- Total liabilities, end of year
- $1,413,937
- Net assets, end of year
- $17,061,986
- Publicly traded securities
- $16,512,456
- Net assets without donor restrictions
- $11,001,105
- Net assets with donor restrictions
- $6,060,881
- Gross unrelated business income
- $4,090
- Gross receipts
- $11,002,798
- Employees
- 0
- Volunteers
- 600
- Year formed
- 1963
- State of legal domicile
- DC
From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.
Officers, directors and key employees
As listed on the 990 for the year ended June 30, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation | From related orgs |
|---|---|---|---|---|
| TONIA MASSON | EXECUTIVE DIRECTOR Officer | 40 | $0 | $161,658 |
| CYNTHIA RIDER PHD | PRESIDENT Trustee or director, Officer | 1 | $0 | $0 |
| JAMES P LUYENDYK PHD | VICE PRESIDENT Trustee or director, Officer | 1 | $0 | $0 |
| REBECCA C FRY PHD | TREASURER Trustee or director, Officer | 1 | $0 | $0 |
| MATTHEW J CAMPEN PHD | SECRETARY Trustee or director, Officer | 1 | $0 | $0 |
| LAURIE C HAWS PHD | PAST PRESIDENT Trustee or director, Officer | 1 | $0 | $0 |
| ROBYN TANGUAY PHD | VICE PRESIDENT-ELECT Trustee or director, Officer | 1 | $0 | $0 |
| DANA DOLINOY PHD | SECRETARY-ELECT Trustee or director, Officer | 1 | $0 | $0 |
| JOSHUA GRAY PHD | COUNCILOR Trustee or director | 1 | $0 | $0 |
| CORIE ELLISON PHD | COUNCILOR Trustee or director | 1 | $0 | $0 |
| JENNIFER L RAYNER PHD | COUNCILOR Trustee or director | 1 | $0 | $0 |
| CHIDOZIE J AMUZIE PHD | COUNCILOR Trustee or director | 1 | $0 | $0 |
| DARRYL B HOOD PHD | COUNCILOR Trustee or director | 1 | $0 | $0 |
| AGNES L KARMAUS PHD | COUNCILOR Trustee or director | 1 | $0 | $0 |
990 for the year ended June 30, 2024: 14 people
| Name | Title | Hours / week | Compensation | From related orgs |
|---|---|---|---|---|
| TONIA MASSON | EXECUTIVE DIRECTOR Officer | 40 | $0 | $163,802 |
| LAURIE C HAWS PHD | PRESIDENT Trustee or director, Officer | 1 | $0 | $0 |
| DORI R GERMOLEC PHD | PAST PRESIDENT Trustee or director, Officer | 1 | $0 | $0 |
| CYNTHIA RIDER PHD | VICE PRESIDENT Trustee or director, Officer | 1 | $0 | $0 |
| JAMES P LUYENDYK PHD | VICE PRESIDENT-ELECT Trustee or director, Officer | 1 | $0 | $0 |
| BRIAN S CUMMINGS PHD | TREASURER Trustee or director, Officer | 1 | $0 | $0 |
| REBECCA C FRY PHD | TREASURER - ELECT Trustee or director, Officer | 1 | $0 | $0 |
| MATTHEW J CAMPEN PHD | SECRETARY Trustee or director, Officer | 1 | $0 | $0 |
| LAUREN M ALEKSUNES PHD | COUNCILOR Trustee or director | 1 | $0 | $0 |
| BETINA J LEW PHD | COUNCILOR Trustee or director | 1 | $0 | $0 |
| JENNIFER L RAYNER PHD | COUNCILOR Trustee or director | 1 | $0 | $0 |
| CHIDOZIE J AMUZIE PHD | COUNCILOR Trustee or director | 1 | $0 | $0 |
| DARRYL B HOOD PHD | COUNCILOR Trustee or director | 1 | $0 | $0 |
| AGNES L KARMAUS PHD | COUNCILOR Trustee or director | 1 | $0 | $0 |
990 for the year ended June 30, 2023: 17 people
| Name | Title | Hours / week | Compensation | From related orgs |
|---|---|---|---|---|
| TONIA MASSON | EXECUTIVE DIRECTOR Officer | 40 | $0 | $160,467 |
| MARTHA MALONE | DEPUTY EXECUTIVE DIRECTOR Highest-paid employee | 40 | $0 | $114,092 |
| BETTY EIDEMILLER | EDUCATION DIRECTOR Highest-paid employee | 40 | $0 | $112,189 |
| VERONICA FISHER | ACCOUNTANT Highest-paid employee | 40 | $0 | $108,833 |
| DORI R GERMOLEC PHD | PRESIDENT Trustee or director, Officer | 1 | $0 | $0 |
| LAURIE C HAWS PHD | VICE PRESIDENT Trustee or director, Officer | 1 | $0 | $0 |
| BRIAN S CUMMINGS PHD | TREASURER Trustee or director, Officer | 1 | $0 | $0 |
| JAMES P LUYENDYK PHD | SECRETARY Trustee or director, Officer | 1 | $0 | $0 |
| MICHAEL ASCHNER PHD | PAST PRESIDENT Trustee or director, Officer | 1 | $0 | $0 |
| CYNTHIA RIDER PHD | VICE PRESIDENT-ELECT Trustee or director, Officer | 1 | $0 | $0 |
| MATTHEW J CAMPEN PHD | SECRETARY-ELECT Trustee or director, Officer | 1 | $0 | $0 |
| LAUREN M ALEKSUNES PHD | COUNCILOR Trustee or director | 1 | $0 | $0 |
| BETINA J LEW PHD | COUNCILOR Trustee or director | 1 | $0 | $0 |
| JENNIFER L RAYNER PHD | COUNCILOR Trustee or director | 1 | $0 | $0 |
| CHIDOZIE J AMUZIE PHD | COUNCILOR Trustee or director | 1 | $0 | $0 |
| ANTONIO T BAINES PHD | COUNCILOR Trustee or director | 1 | $0 | $0 |
| ROBYN L TANGUAY PHD | COUNCILOR Trustee or director | 1 | $0 | $0 |
Address and contacts
- Address (IRS master file)
- 11190 SUNRISE VALLEY DR STE 300, RESTON, VA 20191-4375
- In care of
- % TONIA M MASSON
- Principal officer (990 for 2024)
- TONIA MASSON, 11190 SUNRISE VALLEY DRIVE STE 300, RESTON, VA 20191
- Signed the 990
- TONIA MASSON, EXECUTIVE DIRECTOR
- Phone
- (703) 438-3115
- Website
- WWW.TOXICOLOGY.ORG
- Return prepared by
- CLIFTONLARSONALLEN LLP
Mission
TO PROMOTE THE ACQUISITION AND UTILIZATION OF KNOWLEDGE IN TOXICOLOGY AND TO FACILITATE THE EXCHANGE OF INFORMATION AMONG ITS MEMBERS AS WELL AS AMONG INVESTIGATORS OF OTHER SCIENTIFIC DISCIPLINES.
Program accomplishments
- MEETINGS AND STRATEGIC ACTIVITIES ARE SPONSORED BY THE SOCIETY AND ITS CHAPTERS IN AN ATTEMPT FOR PEOPLE KNOWLEDGABLE IN THE FIELD OF TOXICOLOGY TO PUBLICLY ADDRESS ISSUES SPECIFICALLY RELATED TO TOXICOLOGY.Expenses $3,667,521 · grants $153,212 · revenue $3,887,256
- PUBLICATIONS AND NEWSLETTERS- THE SOCIETY PRINTS AND SELLS LITERATURE TO EDUCATE AND ENCOURAGE A BETTER UNDERSTANDING OF THE SUBJECT OF TOXICOLOGY.Expenses $856,037 · grants $65,000 · revenue $1,142,656
- COMMITTEES - THE SOCIETY HAS MANY COMMITTEES ORGANIZED TO FACILITATE AREAS OF DEVELOPMENT AND PROGRAM OVERSIGHT.Expenses $345,932 · grants $2,400
- AWARDS AND GRANTS - THE SOCIETY AWARDS TRAVEL GRANTS TO STUDENTS DURING THE YEAR AND GIVES HONORARY AWARDS TO INDIVIDUALS WHO HAVE DEMONSTRATED LEADERSHIP OR HAD OUTSTANDING ACCOMPLISHMENTS IN THE FIELD OF TOXICOLOGY.Expenses $297,984 · grants $296,295
- REGIONAL CHAPTERS & DIRECTORYExpenses $255,259 · grants $50,287 · revenue $63,325
- SPECIALTY SECTIONS, SPECIAL INTEREST GROUPS AND LIASON SOCIETIESExpenses $276,579 · grants $55,462 · revenue $28,309
What it must file and when
IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in June, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | June 30, 2026 | November 16, 2026 | Not due yet |
| 2024 | June 30, 2025 | November 17, 2025 | 990 on file |
| 2023 | June 30, 2024 | November 15, 2024 | 990 on file |
IRS record
- EIN
- 52-6057050
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (509(a)(2))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 1965
- Accounting year ends
- June
- Files
- Form 990 or 990-EZ
- Assets (IRS master file)
- $18,475,923
- Income (IRS master file)
- $11,002,798
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | June 2025 | $7,921,128 | $7,681,803 | $18,475,923 | IRS |
| 990-T | June 2025 | – | – | – | IRS |
| 990 | June 2024 | $7,545,400 | $8,076,051 | $17,386,489 | IRS |
| 990-T | June 2024 | – | – | – | IRS |
| 990 | June 2023 | $7,575,120 | $7,921,596 | $16,705,528 | XML |
| 990-T | June 2023 | – | – | – | IRS |
| 990 | June 2022 | $7,344,865 | $7,784,867 | $16,858,021 | IRS |
| 990-T | June 2022 | – | – | – | IRS |
| 990 | June 2021 | – | – | – | IRS |
| 990-T | June 2021 | – | – | – | IRS |
| 990 | June 2020 | – | – | – | IRS |
| 990 | June 2019 | – | – | – | IRS |
| 990 | June 2018 | – | – | – | IRS |
990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 52-6057050).
Questions about SOCIETY OF TOXICOLOGY
- What is the EIN of SOCIETY OF TOXICOLOGY?
- The employer identification number (EIN) of SOCIETY OF TOXICOLOGY is 52-6057050.
- Is SOCIETY OF TOXICOLOGY tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1965.
- Are donations to SOCIETY OF TOXICOLOGY tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does SOCIETY OF TOXICOLOGY file?
- Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
- When is the next return of SOCIETY OF TOXICOLOGY due?
- The return for tax year 2025 (the year ending June 30, 2026) is due November 16, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did SOCIETY OF TOXICOLOGY last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended June 2025.
- Who is the principal officer of SOCIETY OF TOXICOLOGY?
- The 990 for the year ended June 30, 2025 names TONIA MASSON.
- Who are the officers and directors of SOCIETY OF TOXICOLOGY?
- The 990 for the year ended June 30, 2025 lists 14 people; 0 received compensation from the organization.
- How much revenue does SOCIETY OF TOXICOLOGY have?
- On its 990 for the year ended June 30, 2025 it reported revenue of $7,921,128, expenses of $7,681,803 and total assets of $18,475,923 at year end.
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