Nonprofit · EIN 20-4547380
EO WILSON BIODIVERSITY FOUNDATION
Tax-exempt · HILLSBOROUGH, NC 27278
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $1,450,275 | $3,115,710 | -$1,665,435 | $539,023 | $247,567 | $291,456 |
| December 31, 2024 | 990 | $2,637,955 | $4,197,899 | -$1,559,944 | $2,666,339 | $709,448 | $1,956,891 |
| December 31, 2023 | 990 | $5,352,604 | $4,981,728 | $370,876 | $4,666,484 | $1,149,649 | $3,516,835 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $431,614
- Program service revenue
- $996,118
- Investment income
- $18,772
- Other revenue
- $3,771
Expenses
- Grants and similar amounts paid
- $0
- Compensation of officers, directors and key employees
- $1,021,143
- Other salaries and wages
- $377,435
- Salaries, compensation and benefits (total)
- $1,550,775
- Professional fundraising fees
- $0
- Legal fees
- $14,145
- Accounting fees
- $32,744
- Occupancy
- $85,021
- Travel
- $51,483
- Depreciation
- $5,601
- Program services (functional)
- $2,039,796
- Management and general (functional)
- $435,292
- Fundraising (functional)
- $640,622
Balance sheet and other
- Total assets, start of year
- $2,666,339
- Total assets, end of year
- $539,023
- Total liabilities, end of year
- $247,567
- Net assets, end of year
- $291,456
- Land, buildings and equipment
- $2,041
- Publicly traded securities
- $304
- Net assets with donor restrictions
- $291,456
- Gross receipts
- $1,450,275
- Employees
- 8
- Volunteers
- 9
- Year formed
- 2006
- State of legal domicile
- CA
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 | Other / benefits |
|---|---|---|---|---|
| DR PAULA EHRLICH | PRESIDENT & CEO Officer | 40 | $394,020 | $22,577 |
| DR DENNIS LIU | VP OF EDUCATION Key employee | 40 | $176,980 | $22,116 |
| NIQUOLE ESTERS | VP OF STRATEGIC ENGAGEMENT Key employee | 40 | $173,409 | $8,691 |
| RAYMOND B FARROW | SENIOR DIRECTOR OF DEVELOP Key employee | 40 | $158,500 | $4,782 |
| BROOKS BONNER | PROGRAM DIRECTOR Highest-paid employee | 40 | $147,333 | $11,293 |
| LORI PARRO | TREASURER & CFO Officer | 6 | $80,050 | $0 |
| DAVID PREND | CHAIRMAN OF THE BOARD Trustee or director, Officer | 2 | $0 | $0 |
| DINESH NANDAN | SECRETARY Trustee or director | 1 | $0 | $0 |
| JORGEN THOMSEN | BOARD MEMBER Trustee or director | 1 | $0 | $0 |
| MARK BURGET | BOARD MEMBER Trustee or director | 1 | $0 | $0 |
| PAUL SIMON | BOARD MEMBER Trustee or director | 1 | $0 | $0 |
| DR MARCIA ANGLE | BOARD MEMBER Trustee or director | 1 | $0 | $0 |
| ALISON TAYLOR | BOARD MEMBER Trustee or director | 1 | $0 | $0 |
| DR STEPHEN LOCKHART | BOARD MEMBER Trustee or director | 1 | $0 | $0 |
| CHARLES SMITH | BOARD MEMBER Trustee or director | 1 | $0 | $0 |
1 more people on this return
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| KEITH TUFFLEY | BOARD MEMBER Trustee or director | 1 | $0 |
990 for the year ended December 31, 2024: 17 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| DR PAULA EHRLICH | PRESIDENT & CEO Officer | 40 | $399,731 | $62,616 |
| AMY TIDOVSKY | VP OF DEVELOPMENT Key employee | 40 | $225,750 | $36,059 |
| DR DENNIS LIU | VP OF EDUCATION Key employee | 40 | $159,505 | $28,374 |
| BROOKS BONNER | PROGRAM DIRECTOR Highest-paid employee | 40 | $155,799 | $15,350 |
| LORI PARRO | TREASURER & CFO Officer | 6 | $109,063 | $0 |
| PAUL SENNOTT | SECRETARY Officer | 2 | $14,966 | $0 |
| DAVID PREND | CHAIRMAN OF THE BOARD Trustee or director, Officer | 2 | $0 | $0 |
| DINESH NANDAN | RECORDING SECRETARY Trustee or director | 1 | $0 | $0 |
| LEE ANN DALY | BOARD MEMBER Trustee or director | 1 | $0 | $0 |
| JORGEN THOMSEN | BOARD MEMBER Trustee or director | 1 | $0 | $0 |
| MARK BURGET | BOARD MEMBER Trustee or director | 1 | $0 | $0 |
| PAUL SIMON | BOARD MEMBER Trustee or director | 1 | $0 | $0 |
| DR MARCIA ANGLE | BOARD MEMBER Trustee or director | 1 | $0 | $0 |
| ALISON TAYLOR | BOARD MEMBER Trustee or director | 1 | $0 | $0 |
| DR STEPHEN LOCKHART | BOARD MEMBER Trustee or director | 1 | $0 | $0 |
| CHARLES SMITH | BOARD MEMBER Trustee or director | 1 | $0 | $0 |
| KEITH TUFFLEY | BOARD MEMBER Trustee or director | 1 | $0 | $0 |
990 for the year ended December 31, 2023: 18 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| DR PAULA EHRLICH | PRESIDENT & CEO Officer | 40 | $402,568 | $55,441 |
| AMY TIDOVSKY | VP OF DEVELOPMENT Key employee | 40 | $275,625 | $19,733 |
| DR DENNIS LIU | VP OF EDUCATION Key employee | 40 | $185,771 | $7,431 |
| JOEL JOHNSON | VP, CHIEF MARKETING & COMMUNICATIONS UNTIL 07/23 Highest-paid employee | 40 | $131,250 | $5,250 |
| LORI PARRO | TREASURER & CFO Officer | 6 | $83,125 | $0 |
| PAUL SENNOTT | SECRETARY Officer | 2 | $10,675 | $0 |
| DAVID PREND | CHAIRMAN OF THE BOARD Trustee or director, Officer | 2 | $0 | $0 |
| DINESH NANDAN | BOARD MEMBER Trustee or director | 1 | $0 | $0 |
| LEE ANN DALY | BOARD MEMBER Trustee or director | 1 | $0 | $0 |
| JORGEN THOMSEN | BOARD MEMBER Trustee or director | 1 | $0 | $0 |
| MARK BURGET | BOARD MEMBER Trustee or director | 1 | $0 | $0 |
| PAUL SIMON | BOARD MEMBER Trustee or director | 1 | $0 | $0 |
| MARCIA ANGLE | BOARD MEMBER Trustee or director | 1 | $0 | $0 |
| ALISON TAYLOR | BOARD MEMBER Trustee or director | 1 | $0 | $0 |
| DR STEPHEN LOCKHART | BOARD MEMBER Trustee or director | 1 | $0 | $0 |
| CHARLES SMITH | BOARD MEMBER Trustee or director | 1 | $0 | $0 |
| JEFFREY UBBEN | BOARD MEMBER Trustee or director | 1 | $0 | $0 |
| KEITH TUFFLEY | BOARD MEMBER Trustee or director | 1 | $0 | $0 |
Address and contacts
- Address (IRS master file)
- 219 HARDSCRABBLE DR, HILLSBOROUGH, NC 27278-9744
- In care of
- % PAULA EHRLICH
- Mailing address (990-N for 2008)
- 3010 ARTHUR MINNIS ROAD, HILLSBOROUGH NC 27278
- Principal officer (990 for 2025)
- DR PAULA EHRLICH, 219 HARDSCRABBLE DRIVE, HILLSBOROUGH, NC 27278
- Principal officer (990-N for 2008)
- NEIL PATTERSON, 3010 ARTHUR MINNIS ROAD, HILLSBOROUGH NC 27278
- Signed the 990
- DR PAULA EHRLICH, PRESIDENT & CEO
- Phone
- (919) 426-8903
- Website
- WWW.EOWILSONFOUNDATION.ORG
- Return prepared by
- THOMAS JUDY & TUCKER PA
Mission
THE E.O. WILSON BIODIVERSITY FOUNDATION'S MISSION IS TO FOSTER A KNOWING STEWARDSHIP OF OUR WORLD THROUGH BIODIVERSITY RESEARCH AND EDUCATION INITIATIVES THAT PROMOTE AND INFORM WORLDWIDE PRESERVATION OF OUR BIOLOGICAL HERITAGE. WE BELIEVE THAT BY ENHANCING OUR PUBLIC UNDERSTANDING OF BIODIVERSITY, WE CAN FOSTER A CULTURE OF STEWARDSHIP IN WHICH PEOPLE ARE INSPIRED TO CONSERVE AND PROTECT THE NATURAL WORLD.
Program accomplishments
- HALF-EARTH PROJECT MAP: PROVIDING CONSERVATION MANAGEMENT LEADERSHIP BY MAPPING THE SPECIES OF OUR PLANET AND IDENTIFYING WHERE WE HAVE THE BEST OPPORTUNITY TO PROTECT THE MOST SPECIES.Expenses $837,152 · revenue $996,118
- HALF-EARTH DAY: CELEBRATING THE GRAND AMBITION OF HALF-EARTH, SHOWCASES PROGRESS, AND ENGAGES PEOPLE IN HOW THEY CAN PARTICIPATE IN THE HALF-EARTH PROJECT. HALF-EARTH DAY BRINGS TOGETHER SCIENTISTS, INDIGENOUS AND LOCAL COMMUNITY LEADERS, AND GLOBAL CONSERVATION AND MULTINATIONAL ORGANIZATIONS TO SHARE THEIR VOICES AND VISIONS FOR HOW WE CAN BEST CARE FOR OUR PLANET.Expenses $409,704
- HALF-EARTH PROJECT EDUCATOR AMBASSADORS: PROVIDING A PLATFORM FOR TEACHERS TO ENGAGE EACH OTHER AND THEIR STUDENTS IN THE GRAND AMBITION OF HALF-EARTH, AND TO INSPIRE AND CONNECT STUDENTS WITH THE NATURAL WORLD.Expenses $432,306
- HALF-EARTH GENERAL: GENERAL PROMOTION AND SUPPORT OF GLOBAL CONSERVATION AND BIODIVERSITY RESEARCH.Expenses $360,634
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
- 20-4547380
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (170(b)(1)(A)(vi))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 2008
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Environment (C60)
- Assets (IRS master file)
- $539,023
- Income (IRS master file)
- $1,450,275
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $1,450,275 | $3,115,710 | $539,023 | IRS |
| 990 | December 2024 | $2,637,955 | $4,197,899 | $2,666,339 | XML |
| 990 | December 2023 | $5,352,604 | $4,981,728 | $4,666,484 | XML |
| 990 | December 2022 | $5,730,483 | $4,680,470 | $3,992,120 | IRS |
| 990 | December 2021 | – | – | – | IRS |
| 990 | December 2020 | – | – | – | IRS |
| 990 | December 2018 | – | – | – | IRS |
| 990-N for 2008 Officer: NEIL PATTERSON | December 31, 2008 | ≤ $50,000 receipts | – | – | e-Postcard |
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 20-4547380).
Questions about EO WILSON BIODIVERSITY FOUNDATION
- What is the EIN of EO WILSON BIODIVERSITY FOUNDATION?
- The employer identification number (EIN) of EO WILSON BIODIVERSITY FOUNDATION is 20-4547380.
- Is EO WILSON BIODIVERSITY FOUNDATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2008.
- Are donations to EO WILSON BIODIVERSITY FOUNDATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does EO WILSON BIODIVERSITY FOUNDATION 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 EO WILSON BIODIVERSITY FOUNDATION 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 EO WILSON BIODIVERSITY FOUNDATION 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 EO WILSON BIODIVERSITY FOUNDATION?
- The 990 for the year ended December 31, 2025 names DR PAULA EHRLICH.
- Who are the officers and directors of EO WILSON BIODIVERSITY FOUNDATION?
- The 990 for the year ended December 31, 2025 lists 16 people; 6 received compensation from the organization, the highest $394,020 (DR PAULA EHRLICH, PRESIDENT & CEO).
- How much revenue does EO WILSON BIODIVERSITY FOUNDATION have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $1,450,275, expenses of $3,115,710 and total assets of $539,023 at year end.
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