Status and standing
Is it real, and can you give to it?
Where the money goes
What each dollar paid for.
Statement of Functional Expenses
Financial health
Is it on solid ground?
Summary of the Filing
| FY2020 | $2.8M |
|---|---|
| FY2021 | $2.7M |
| FY2022 | $3.0M |
| FY2023 | $3.2M |
| FY2024 | $2.4M |
| FY2025 | $2.1M |
| FY2020 | $705K |
|---|---|
| FY2021 | $635K |
| FY2022 | $895K |
| FY2023 | $803K |
| FY2024 | $655K |
| FY2025 | $441K |
Balance Sheet
Statement of Revenue
Financial Metrics
Same NTEE category, revenue band, and state where available. Descriptive — not a grade.
| Metric | This org | Peer median | Percentile |
|---|---|---|---|
| Program ratio | 74% | — | — |
| Overhead ratio | 26% | — | — |
| Fundraising cost ratio | 0% | — | — |
| Revenue growth | -31% | — | — |
| Legal fee ratio | 0.03% | — | — |
| Accounting fee ratio | 0.7% | — | — |
Straight from the Form 990 — descriptive, not an evaluation. A ratio is hidden when its base is zero or too small to be meaningful; the dollars are always shown.
Leadership and pay
Who runs it, and what are they paid?
Officers, Directors & Key Employees
Gerd Heber’s $187K as Executive Director is at the 53rd percentile of top reported officer pay among 363 $1–10M science & technology nonprofits. Peer set: organizations in the same NTEE major field of work and revenue-size band, compared on each org’s own highest-paid officer/key-employee, from Form 990 Part VII / 990-PF Part VIII. Descriptive placement, not a verdict on whether the pay is appropriate.
Compensation history total reportable pay by year · 8 named individuals · Part VII
| Name | FY2025 | FY2024 | FY2023 | FY2022 | FY2021 | FY2020 |
|---|---|---|---|---|---|---|
| Gerd Heber | $187,018 | $182,974 | $178,447 | $171,598 | $134,480 | $129,532 |
| John Readey | $186,111 | $183,091 | $177,356 | $165,448 | $159,410 | $153,240 |
| Dana Robinson | — | $172,686 | $167,181 | $136,926 | $138,264 | $134,382 |
| Dax Rodriguez | — | — | — | — | $153,659 | $172,113 |
| Elena Pourmal | — | — | — | $62,986 | $162,535 | $157,108 |
| Aleksandar Jelenak | $157,202 | $154,871 | $146,964 | $139,743 | — | — |
| Vanisha Taylor | $156,880 | $150,265 | $149,935 | $137,909 | $133,219 | $128,126 |
| Michael Breitenfeld | $153,537 | $127,901 | $117,082 | $111,310 | — | — |
Total reportable compensation (Form 990 Part VII column D / Schedule J column E) by filing year, matched by name within this organization. The Schedule J base / bonus / deferred breakdown is not parsed into this dataset.
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Governance & Policies
- 3Voting board membersPt VI · Ln 1a
- 3Independent board membersPt VI · Ln 1b
- Conflict-of-interest policyPt VI · Ln 12aYes
- Whistleblower policyPt VI · Ln 13Yes
- Document retention policyPt VI · Ln 14Yes
- Top official’s pay independently reviewedPt VI · Ln 15aYes
- Family or business ties among leadersPt VI · Ln 2No
Mission and programs
What it does.
Develops and supports advanced software for managing complex data throughout its lifecycle.
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Where the work happens
The HDF group researched, developed, and tested modifications to HDF5 to expand functionality, improve performance, and increase usability of HDF5.
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Funders
Who pays for it.
From grant filings on record. Receipts are incomplete: individual donors are never listed.
Grants
Filing history
Every return on file.
| Year | Revenue | Expenses | Change | Filing |
|---|---|---|---|---|
| FY2025 Latest | $3.0M | $3.2M | +22% | 990 PDF |
| FY2024 Viewing | $2.5M | $3.2M | -31% | 990 PDF |
| FY2023 | $3.7M | $3.3M | +11% | 990 PDF |
| FY2022 | $3.3M | $3.3M | -13% | 990 PDF |
| FY2021 | $3.8M | $3.8M | -20% | 990 PDF |
| FY2020 | $4.7M | $4.1M | 990 PDF |
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Schedules filed Part IV
Full filing: Form 990 for FY2024
Part IX · Statement of functional expenses $3,227,667 across 15 lines filed
Not shown yet: ratings, outcomes, and peer benchmarks. A Form 990 doesn’t report them.
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Sources
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