Nonprofit · EIN 68-0600605
THE HDF GROUP
Tax-exempt · CHAMPAIGN, IL 61820
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $3,045,316 | $3,150,048 | -$104,732 | $2,059,663 | $441,095 | $1,618,568 |
| December 31, 2024 | 990 | $2,505,875 | $3,227,667 | -$721,792 | $2,378,434 | $655,134 | $1,723,300 |
| December 31, 2023 | 990 | $3,653,985 | $3,291,416 | $362,569 | $3,248,020 | $802,928 | $2,445,092 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $13,149
- Program service revenue
- $2,819,158
- Investment income
- $213,009
- Other revenue
- $0
Expenses
- Grants and similar amounts paid
- $0
- Compensation of officers, directors and key employees
- $595,539
- Other salaries and wages
- $1,894,887
- Salaries, compensation and benefits (total)
- $2,843,109
- Professional fundraising fees
- $0
- Legal fees
- $200
- Accounting fees
- $25,207
- Occupancy
- $179,075
- Travel
- $16,980
- Depreciation
- $11,121
- Program services (functional)
- $2,345,605
- Management and general (functional)
- $804,443
Balance sheet and other
- Total assets, start of year
- $2,378,434
- Total assets, end of year
- $2,059,663
- Total liabilities, end of year
- $441,095
- Net assets, end of year
- $1,618,568
- Land, buildings and equipment
- $8,809
- Net assets without donor restrictions
- $1,618,568
- Gross receipts
- $3,045,316
- Employees
- 21
- Volunteers
- 0
- Year formed
- 2004
- State of legal domicile
- IL
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 |
|---|---|---|---|---|
| GERD HEBER | EXECUTIVE DIRECTOR Officer | 40 | $187,018 | $21,651 |
| JOHN READEY | DIRECTOR OF TOOLS AND CLOUD Key employee | 40 | $186,111 | $22,040 |
| VANISHA TAYLOR | CFO Officer | 40 | $156,880 | $13,839 |
| MICHAEL BREITENFELD | EMPLOYEE Highest-paid employee | 40 | $153,537 | $15,200 |
| NEIL FORTNER | EMPLOYEE Highest-paid employee | 40 | $133,062 | $29,681 |
| ALEKSANDAR JELENAK | EMPLOYEE Highest-paid employee | 40 | $157,202 | $1,155 |
| NEELAM BAGHA | EMPLOYEE Highest-paid employee | 40 | $143,195 | $6,843 |
| MELINDA EADS | EMPLOYEE Highest-paid employee | 40 | $125,959 | $15,019 |
| JESSICA POPP | PRESIDENT Trustee or director, Officer | 1 | $4,000 | $0 |
| EASWARAN G NADHAN | DIRECTOR Trustee or director | 1 | $4,000 | $0 |
| MICHAEL J FOLK | SECRETARY/TREASURER Trustee or director, Officer | 1 | $0 | $0 |
990 for the year ended December 31, 2024: 12 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| JOHN READEY | DIRECTOR OF TOOLS AND CLOU Key employee | 40 | $183,091 | $21,755 |
| GERD HEBER | EXECUTIVE DIRECTOR Officer | 40 | $182,974 | $20,642 |
| DANA ROBINSON | DIRECTOR OF ENGINEERING Key employee | 40 | $172,686 | $7,911 |
| VANISHA TAYLOR | CFO Officer | 40 | $150,265 | $17,330 |
| ALEKSANDAR JELENAK | EMPLOYEE Highest-paid employee | 40 | $154,871 | $1,015 |
| NEIL FORTNER | EMPLOYEE Highest-paid employee | 40 | $131,426 | $23,698 |
| NEELAM BAGHA | EMPLOYEE Highest-paid employee | 40 | $140,026 | $6,531 |
| MICHAEL BREITENFELD | EMPLOYEE Highest-paid employee | 40 | $127,901 | $13,115 |
| MELINDA EADS | EMPLOYEE Highest-paid employee | 40 | $123,113 | $14,227 |
| JESSICA POPP | PRESIDENT Trustee or director, Officer | 1 | $4,000 | $0 |
| EASWARAN G NADHAN | DIRECTOR Trustee or director | 1 | $4,000 | $0 |
| MICHAEL J FOLK | SECRETARY Trustee or director, Officer | 1 | $1,000 | $0 |
990 for the year ended December 31, 2023: 12 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| JOHN READEY | DIRECTOR OF TOOLS AND CLOU Key employee | 40 | $177,356 | $21,249 |
| GERD HEBER | EXECUTIVE DIRECTOR Officer | 40 | $178,447 | $19,477 |
| DANA ROBINSON | DIRECTOR OF ENGINEERING Key employee | 40 | $167,181 | $7,695 |
| VANISHA TAYLOR | CFO Officer | 40 | $149,935 | $18,703 |
| NEIL FORTNER | EMPLOYEE Highest-paid employee | 40 | $127,692 | $21,205 |
| ALEKSANDAR JELENAK | EMPLOYEE Highest-paid employee | 40 | $146,964 | $1,007 |
| NEELAM BAGHA | EMPLOYEE Highest-paid employee | 40 | $135,768 | $6,349 |
| MELINDA EADS | EMPLOYEE Highest-paid employee | 40 | $124,498 | $13,260 |
| MICHAEL BREITENFELD | EMPLOYEE Highest-paid employee | 40 | $117,082 | $12,113 |
| MICHAEL J FOLK | SECRETARY Trustee or director, Officer | 1 | $4,000 | $0 |
| JESSICA POPP | PRESIDENT Trustee or director, Officer | 1 | $4,000 | $0 |
| EASWARAN G NADHAN | DIRECTOR Trustee or director | 1 | $4,000 | $0 |
Address and contacts
- Address (IRS master file)
- 410 E UNIVERSITY AVE STE 200, CHAMPAIGN, IL 61820-3871
- Principal officer (990 for 2025)
- GERD HEBER, 410 E UNIVERSITY AVE 200, CHAMPAIGN, IL 618203871
- Signed the 990
- GERD HEBER, EXECUTIVE DIRECTOR
- Phone
- (217) 531-6104
- Website
- WWW.HDFGROUP.ORG
- Return prepared by
- MH CPA PLLC
Mission
THE ORGANIZATION'S PRIMARY EXEMPT PURPOSE IS TO ENSURE THE SUSTAINABILITY OF HDF TECHNOLOGIES AND ONGOING ACCESSIBILITY OF HDF-STORED DATA FOR THE GOVERNMENT AGENCIES AND ORGANIZATIONS THAT HAVE MISSION-CRITICAL SYSTEMS RELYING ON HDF. SPECIFICALLY, THE ORGANIZATION'S MISSION IS TO DEVELOP AND MAINTAIN FREE, OPEN SOURCE COMPUTER APPLICATIONS THAT MOVE AND STORE SCIENTIFIC AND COMPLEX DATA AMONG DISPARATE COMPUTING SYSTEMS. THERE ARE OVER 200 DIFFERENT TYPES OF COMPUTER APPLICATIONS USING HDF TECHNOLOGIES, AND AN ESTIMATED 1.6 MILLION USERS OF NATIONAL AERONAUTICS AND SPACE ADMINISTRATION (NASA) DATA ALONE, IN HDF FORMATS.
Program accomplishments
- THE HDF GROUP RESEARCHED, DEVELOPED, AND TESTED MODIFICATIONS TO HDF5 TO EXPAND FUNCTIONALITY, IMPROVE PERFORMANCE, AND INCREASE USABILITY OF HDF5.Expenses $2,345,605 · revenue $2,819,158
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
- 68-0600605
- 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
- 2006
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Science and technology (U41)
- Assets (IRS master file)
- $2,059,663
- Income (IRS master file)
- $3,045,316
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $3,045,316 | $3,150,048 | $2,059,663 | XML |
| 990 | December 2024 | $2,505,875 | $3,227,667 | $2,378,434 | IRS |
| 990 | December 2023 | $3,653,985 | $3,291,416 | $3,248,020 | XML |
| 990 | December 2022 | $3,295,775 | $3,270,329 | $2,975,611 | IRS |
| 990 | December 2021 | – | – | – | IRS |
| 990 | December 2020 | – | – | – | IRS |
| 990 | December 2019 | – | – | – | 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 68-0600605).
Questions about THE HDF GROUP
- What is the EIN of THE HDF GROUP?
- The employer identification number (EIN) of THE HDF GROUP is 68-0600605.
- Is THE HDF GROUP tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2006.
- Are donations to THE HDF GROUP tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does THE HDF GROUP 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 THE HDF GROUP 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 THE HDF GROUP 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 THE HDF GROUP?
- The 990 for the year ended December 31, 2025 names GERD HEBER.
- Who are the officers and directors of THE HDF GROUP?
- The 990 for the year ended December 31, 2025 lists 11 people; 10 received compensation from the organization, the highest $187,018 (GERD HEBER, EXECUTIVE DIRECTOR).
- How much revenue does THE HDF GROUP have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $3,045,316, expenses of $3,150,048 and total assets of $2,059,663 at year end.
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