Nonprofit · EIN 51-0204015
ILLINOIS SCIENCE TEACHING ASSOCIATION
Tax-exempt (reinstated) · JACKSONVILLE, IL 62650
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-EZ | $79,907 | $77,028 | $2,879 | $64,690 | $0 | $64,690 |
| December 31, 2024 | 990-EZ | $55,031 | $48,048 | $6,983 | $61,811 | $0 | $61,811 |
Financial details: 990-EZ for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $446
- Membership dues
- $13,215
- Program service revenue
- $55,852
- Investment income
- $1,304
- Other revenue
- $9,090
Expenses
- Grants and similar amounts paid
- $0
- Benefits paid to members
- $32,607
- Compensation of officers, directors and key employees
- $25,800
- Salaries, compensation and benefits (total)
- $25,203
- Other expenses
- $19,218
- Program services (functional)
- $39,611
Balance sheet and other
- Total assets, start of year
- $61,811
- Total assets, end of year
- $64,690
- Total liabilities, end of year
- $0
- Net assets, end of year
- $64,690
- Cash, savings and investments
- $64,690
- Gross receipts
- $79,907
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-EZ for the year ended December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Bob Wolffe | Finance Director | 7 | $10,200 |
| Bridina Lemmer | Executive Director | 1 | $7,800 |
| Abigail Trifliek | Website and Communications Director | 4 | $3,900 |
| Nathaniel Nugent | Social Media Communications Director | 4 | $3,900 |
| Maggie Moore | President | 1 | $0 |
| Chris Embry-Moore | Secretary | 1 | $0 |
| Nicole Vick | Regional Director | 1 | $0 |
| Nicol Christianson | President Elect | 1 | $0 |
| Leila Kassim | Regional Director | 1 | $0 |
| Amy Telford | Regional Director | 1 | $0 |
| Angela Henson | Regional Director | 1 | $0 |
| Misty Richmond | Regional Director | 1 | $0 |
| Jeff Grant | Regional Director | 1 | $0 |
| Dominika Zahradniecek | Regional Director | 1 | $0 |
| Deanna Keeney | Regional Director | 1 | $0 |
6 more people on this return
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Heather Galbreath | Regional director | 1 | $0 |
| Matt Bulman | Regional Director | 1 | $0 |
| Nicole McRee | Regional Director | 1 | $0 |
| Tonia Prombo | Regional Director | 1 | $0 |
| Helen Brandon | Regional Director | 1 | $0 |
| Janice Coleman-Mathus | Regional Director | 1 | $0 |
990-EZ for the year ended December 31, 2024: 19 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Bob Wolffe | Finance Director | 7 | $9,600 |
| Bridina Lemmer | Executive Director | 6 | $7,200 |
| Ken Wester | Assistant Executive Director | 3 | $3,600 |
| Maggie Moore | President | 5 | $0 |
| Chris Embry-Moore | Secretary | 3 | $0 |
| Nicole Vick | Past President | 3 | $0 |
| Nicol Christianson | President Elect | 3 | $0 |
| Kym Seo | Vice President | 1 | $0 |
| Leila Kassim | Regional Director | 1 | $0 |
| Amy Telford | Regional Director | 1 | $0 |
| Angela Henson | Regional Director | 1 | $0 |
| Misty Richmond | Regional Director | 1 | $0 |
| Tammy Shippert | Regional Director | 1 | $0 |
| Jeff Grant | Regional Director | 1 | $0 |
| Sebastian Szyjka | Regional Director | 1 | $0 |
| Dominika Zahradniecek | Regional Director | 1 | $0 |
| Jennifer Noncek-Eastmen | Regional Director | 1 | $0 |
| Deanna Keeney | Regional Director | 1 | $0 |
| Jeff Spencer | Regional Director | 1 | $0 |
Address and contacts
- Address (IRS master file)
- 1954 STATE HIGHWAY 78 N, JACKSONVILLE, IL 62650-6222
- Mailing address (990-N for 2022)
- 230 East Green Acres Ct, East Peoria IL 61611
- Principal officer (990-N for 2022)
- Robert Wolffe, 230 East Green Acres Ct, East Peoria IL 61611
- Signed the 990-EZ
- Bridina Lemmer, Executive Director
- Phone
- (808) 646-1480
- Website
- https://ilscience.org/
Mission
We are a membership based organization dedicated to promoting excellence in science teaching and learning throughout Illinois.
Program accomplishments
- Annual Conference ISTA hosts an annual statewide professional development conference providing Illinois science educators with access to workshops, keynote speakers, research presentations, and curriculum resources aligned with current science education standards. The conference supports educator growth and collaboration across all grade bands and science disciplines.Expenses $32,607
- Teacher Recognition Awards ISTA administers recognition programs honoring outstanding Illinois science educators for excellence in teaching, innovation, and contributions to the field of science education. Awards are presented annually across grade-level categories, celebrating educators who demonstrate exceptional impact on student learning and the science education communityExpenses $6,655
- Student Awards ISTA sponsors student recognition programs that celebrate achievement and excellence in science learning among Illinois students. These programs support the development of the next generation of scientists and science-literate citizens across the state.Expenses $349
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 December, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | December 31, 2025 | May 15, 2026 | 990-EZ on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990-EZ on file |
| 2023 | December 31, 2023 | May 15, 2024 | Check at the IRS |
IRS record
- EIN
- 51-0204015
- 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
- 2019
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Education (B90)
- Assets (IRS master file)
- $64,690
- Income (IRS master file)
- $79,907
Revocation and reinstatement
- Exemption revoked
- May 15, 2018
- Posted by the IRS
- August 13, 2018
- Reinstated
- Effective May 15, 2018
From the IRS automatic revocation list: organizations that did not file a required return or e-Postcard for three consecutive years.
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-EZ | December 2025 | $79,907 | $77,028 | $64,690 | IRS |
| 990-EZ | December 2024 | $55,031 | $48,048 | $61,811 | IRS |
| 990-N for 2022 Officer: Robert Wolffe | December 31, 2022 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-EZ | December 2021 | – | – | – | 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 51-0204015).
Questions about ILLINOIS SCIENCE TEACHING ASSOCIATION
- What is the EIN of ILLINOIS SCIENCE TEACHING ASSOCIATION?
- The employer identification number (EIN) of ILLINOIS SCIENCE TEACHING ASSOCIATION is 51-0204015.
- Is ILLINOIS SCIENCE TEACHING ASSOCIATION tax-exempt?
- Yes. The IRS revoked its exemption on May 15, 2018 and reinstated it effective May 15, 2018.
- Are donations to ILLINOIS SCIENCE TEACHING ASSOCIATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does ILLINOIS SCIENCE TEACHING ASSOCIATION 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 ILLINOIS SCIENCE TEACHING ASSOCIATION due?
- The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did ILLINOIS SCIENCE TEACHING ASSOCIATION last file with the IRS?
- The latest return in the IRS public files is the 990-EZ for the year ended December 2025.
- Who is the principal officer of ILLINOIS SCIENCE TEACHING ASSOCIATION?
- The 990-N for 2022 names Robert Wolffe.
- Who are the officers and directors of ILLINOIS SCIENCE TEACHING ASSOCIATION?
- The 990-EZ for the year ended December 31, 2025 lists 21 people; 4 received compensation from the organization, the highest $10,200 (Bob Wolffe, Finance Director).
- How much revenue does ILLINOIS SCIENCE TEACHING ASSOCIATION have?
- On its 990-EZ for the year ended December 31, 2025 it reported revenue of $79,907, expenses of $77,028 and total assets of $64,690 at year end.
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