Nonprofit · EIN 16-1482027
AMERICAN FILTRATION AND SEPERATIONS SOCIETY INC
Tax-exempt · MIDDLETON, WI 53562
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $350,610 | $547,030 | -$196,420 | $439,556 | $101,727 | $337,829 |
| December 31, 2024 | 990 | $411,015 | $475,292 | -$64,277 | $610,838 | $105,255 | $505,583 |
| December 31, 2023 | 990 | $572,569 | $535,589 | $36,980 | $696,001 | $136,206 | $559,795 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $0
- Program service revenue
- $328,908
- Investment income
- $21,696
- Net gain from sales of assets
- $12,675
- Other revenue
- $6
Expenses
- Grants and similar amounts paid
- $0
- Salaries, compensation and benefits (total)
- $0
- Professional fundraising fees
- $0
- Legal fees
- $3,004
- Accounting fees
- $4,700
- Travel
- $3,671
- Depreciation
- $19,828
- Program services (functional)
- $329,426
- Management and general (functional)
- $168,512
- Fundraising (functional)
- $49,092
Balance sheet and other
- Total assets, start of year
- $610,838
- Total assets, end of year
- $439,556
- Total liabilities, end of year
- $101,727
- Net assets, end of year
- $337,829
- Publicly traded securities
- $173,800
- Net assets without donor restrictions
- $337,829
- Gross receipts
- $468,842
- Employees
- 0
- Volunteers
- 12
- Year formed
- 1987
- State of legal domicile
- TN
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 December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| SARAVANAN ANDAN | CHAIR Trustee or director, Officer | 1 | $0 |
| WENDY BEACH | FIRST VICE CHAIR Trustee or director, Officer | 1 | $0 |
| ASHISH BANDEKAR | SECOND VICE CHAIR Trustee or director, Officer | 1 | $0 |
| JON RAJALA | IMMEDIATE PAST CHAIR Trustee or director, Officer | 1 | $0 |
| JIM WALKER | TREASURER Trustee or director, Officer | 1 | $0 |
| DEAN BONESSI | DIRECTOR Trustee or director | 1 | $0 |
| TODD FURBEE | DIRECTOR Trustee or director | 1 | $0 |
| KAIYI LIU | DIRECTOR Trustee or director | 1 | $0 |
| CHARLES BARMAN | DIRECTOR Trustee or director | 1 | $0 |
| EUNKYOUNG SHIM | DIRECTOR Trustee or director | 1 | $0 |
| TINOUSH DINN | DIRECTOR Trustee or director | 1 | $0 |
| JIANYU ZHOU | DIRECTOR Trustee or director | 1 | $0 |
| STEFAN BRADHAM | EXECUTIVE DIRECTOR Officer | 20 | $0 |
990 for the year ended December 31, 2024: 15 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| EUNKYOUNG SHIM | DIRECTOR Trustee or director | 1 | $0 |
| TODD FURBEE | DIRECTOR Trustee or director | 1 | $0 |
| ASHISH BANDEKAR | DIRECTOR Trustee or director | 1 | $0 |
| NEIL BURNS | DIRECTOR Trustee or director | 1 | $0 |
| BRIAN LANE | DIRECTOR Trustee or director | 1 | $0 |
| JAMES SANDY | DIRECTOR Trustee or director | 1 | $0 |
| JOHNATHAN SCHUEMAKER | DIRECTOR Trustee or director | 1 | $0 |
| SEVERA GODWIN | DIRECTOR Trustee or director | 1 | $0 |
| STEVEN WESTBROOK | DIRECTOR Trustee or director | 1 | $0 |
| LEONARD CASTELLANO | IMMEDIATE PAST CHAIR Trustee or director, Officer | 2 | $0 |
| JIM WALKER | TREASURER Trustee or director, Officer | 2 | $0 |
| JONATHAN RAJALA | CHAIR Trustee or director, Officer | 2 | $0 |
| STEFAN BRADHAM | EXECUTIVE DIRECTOR Trustee or director, Officer | 20 | $0 |
| SARAVANAN ANDAN | 1ST VICE CHAIR Trustee or director, Officer | 2 | $0 |
| WENDY BEACH | 2ND VICE CHAIR Trustee or director, Officer | 2 | $0 |
990 for the year ended December 31, 2023: 26 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| ELINE PATTYN | DIRECTOR Trustee or director | 1 | $0 |
| WENDY BEACH | DIRECTOR Trustee or director | 1 | $0 |
| JAMES SANDY | DIRECTOR Trustee or director | 1 | $0 |
| GODWIN SEVERA | DIRECTOR Trustee or director | 1 | $0 |
| JOHNATHAN SCHUEMAKER | DIRECTOR Trustee or director | 1 | $0 |
| MARGARITA LUIS | DIRECTOR Trustee or director | 0 | $0 |
| RISHIT MERCHANT | DIRECTOR Trustee or director | 1 | $0 |
| BRIAN LANE | DIRECTOR Trustee or director | 1 | $0 |
| NEIL BURNS | DIRECTOR Trustee or director | 0 | $0 |
| ALEX KNOWLES | DIRECTOR Trustee or director | 1 | $0 |
| SNEHA SWAMINATHAN | DIRECTOR Trustee or director | 1 | $0 |
| JOHN HANCOCK | DIRECTOR Trustee or director | 1 | $0 |
| WU CHEN | DIRECTOR Trustee or director | 1 | $0 |
| STEVEN WESTBROOK | DIRECTOR Trustee or director | 1 | $0 |
| LIN ZHAO | DIRECTOR Trustee or director | 1 | $0 |
| ASHISH BANDEKAR | DIRECTOR Trustee or director | 1 | $0 |
| JAY BERNSLEY | DIRECTOR Trustee or director | 1 | $0 |
| PETER CARTWRIGHT | DIRECTOR Trustee or director | 1 | $0 |
| MARTIN LEHMANN | DIRECTOR Trustee or director | 1 | $0 |
| TINOUSH DINN | DIRECTOR Trustee or director | 1 | $0 |
| JIM WALKER | TREASURER Trustee or director, Officer | 2 | $0 |
| LEONARD CASTELLANO | CHAIR Trustee or director, Officer | 2 | $0 |
| KENNETH WINSTON | PAST CHAIR Trustee or director, Officer | 2 | $0 |
| SARAVANAN ANDAN | 2ND VICE CHAIR Trustee or director, Officer | 2 | $0 |
| CONNIE RHEA | EXECUTIVE DIRECTOR Trustee or director, Officer | 40 | $0 |
| JONATHAN RAJALA | 1ST VICE CHAIR Trustee or director, Officer | 2 | $0 |
Address and contacts
- Address (IRS master file)
- 7780 ELMWOOD AVE STE 130, MIDDLETON, WI 53562-5407
- In care of
- % STEFAN BRADHAM
- Principal officer (990 for 2025)
- STEFAN BRADHAM, 7780 ELMWOOD AVE 130, MIDDLETON, WI 53562
- Signed the 990
- STEFAN BRADHAM, EXECUTIVE DIRECTOR
- Phone
- (615) 250-7792
- Website
- AFSSOCIETY.ORG
- Return prepared by
- WEGNER CPAS LLP
Mission
THE AMERICAN FILTRATION AND SEPARATIONS SOCIETY IS AN EDUCATIONAL, NONPROFIT ORGANIZATION THAT PROVIDES A FORUM FOR NETWORKING AND THE EXCHANGE OF TECHNICAL KNOWLEDGE WITHIN ACADEMIA AND INDUSTRY IN ALL AREAS OF FILTRATION AND SEPARATION.
Program accomplishments
- THE AMERICAN FILTRATION AND SEPARATIONS SOCIETY, INC. HAS PROMOTED KNOWLEDGE, UNDERSTANDING, AND GROWTH AMONG PROFESSIONAL WORKING IN THE FILTRATION AND PRACTICE SEPARATION SCIENCE.Expenses $329,426 · revenue $328,908
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 on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990 on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990 on file |
IRS record
- EIN
- 16-1482027
- 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
- 1996
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Science and technology (U30)
- Assets (IRS master file)
- $439,556
- Income (IRS master file)
- $468,842
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $350,610 | $547,030 | $439,556 | XML |
| 990 | December 2024 | $411,015 | $475,292 | $610,838 | XML |
| 990 | December 2023 | $572,569 | $535,589 | $696,001 | XML |
| 990 | December 2022 | $1,080,886 | $998,532 | $619,326 | IRS |
| 990 | December 2021 | – | – | – | IRS |
| 990 | December 2020 | – | – | – | IRS |
| 990 | December 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 16-1482027).
Questions about AMERICAN FILTRATION AND SEPERATIONS SOCIETY INC
- What is the EIN of AMERICAN FILTRATION AND SEPERATIONS SOCIETY INC?
- The employer identification number (EIN) of AMERICAN FILTRATION AND SEPERATIONS SOCIETY INC is 16-1482027.
- Is AMERICAN FILTRATION AND SEPERATIONS SOCIETY INC tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1996.
- Are donations to AMERICAN FILTRATION AND SEPERATIONS SOCIETY INC tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does AMERICAN FILTRATION AND SEPERATIONS SOCIETY INC 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 AMERICAN FILTRATION AND SEPERATIONS SOCIETY INC 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 AMERICAN FILTRATION AND SEPERATIONS SOCIETY INC last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended December 2025.
- Who is the principal officer of AMERICAN FILTRATION AND SEPERATIONS SOCIETY INC?
- The 990 for the year ended December 31, 2025 names STEFAN BRADHAM.
- Who are the officers and directors of AMERICAN FILTRATION AND SEPERATIONS SOCIETY INC?
- The 990 for the year ended December 31, 2025 lists 13 people; 0 received compensation from the organization.
- How much revenue does AMERICAN FILTRATION AND SEPERATIONS SOCIETY INC have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $350,610, expenses of $547,030 and total assets of $439,556 at year end.
Other nonprofits in MIDDLETON
- UNIVERSITY OF WISCONSIN MEDICAL FOUNDATION INC EIN 39-1824445 · last filed 990 for 2025
- MADISON SURGERY CENTER INC EIN 39-1940656 · last filed 990 for 2025
- FUTURE WISCONSIN HOUSING FUND INC EIN 39-1897032 · last filed 990 for 2025
- ATTIC ANGEL PLACE INC EIN 39-1919667 · last filed 990 for 2025
- GENERATIONS FERTILITY CARE INC EIN 27-3496527 · last filed 990 for 2025
- LUCY BURNS INSTITUTE INC EIN 20-8036372 · last filed 990 for 2024
- WAYFORWARD RESOURCES INC EIN 39-1484945 · last filed 990 for 2025
- METAVIVOR RESEARCH AND SUPPORT INC EIN 37-1578088 · last filed 990 for 2024
All nonprofits in MIDDLETON · Wisconsin · Science and technology