Hellenic Classical Charter Schools
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Prepares students for success in top New York City high schools. For fiscal year 2025 it reported $21.0M in revenue, $22.5M in expenses, and $7.6M in net assets.Pt I
Summary of the Filing
Where the work happens
To increase learning opportunities for students through innovative educational programs and to enable parents to be more involved in their children's education. The school provided education to approximately 970 students in grades kindergarten through eighth during the 2024-2025 academic year.
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Identity & Classification
Governance & Policies
Officers, Directors & Key Employees
Christina Tettonis’s $360K as Superintendent is at the 75th percentile of top reported officer pay among 3682 $10–100M education 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 |
|---|---|---|---|---|---|---|
| Christina Tettonis | $360,379 | $360,379 | $326,900 | $317,794 | $305,987 | — |
| Joy Petrakos | $219,502 | — | — | — | — | — |
| Joy Pretrakos | — | $191,810 | $169,321 | $170,622 | $156,531 | — |
| Natasha Caban | $179,903 | $170,276 | $158,138 | $157,658 | $148,756 | — |
| Cathy Kakleas | $160,556 | $143,449 | $128,945 | $128,760 | $118,736 | $112,462 |
| Adam Konstantopoulos | $149,095 | $139,352 | $133,704 | $108,401 | — | — |
| Anthony Underwood | $131,419 | $143,694 | — | — | — | — |
| Christina Portelos | — | — | $141,810 | $135,161 | $131,530 | — |
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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Statement of Revenue
Statement of Functional Expenses
Balance Sheet
Financial Metrics
Same NTEE category, revenue band, and state where available. Descriptive — not a grade.
| Metric | This org | Peer median | Percentile |
|---|---|---|---|
| Program ratio | 83% | — | — |
| Overhead ratio | 16% | — | — |
| Fundraising cost ratio | 16% | — | — |
| Revenue growth | 10% | — | — |
| Legal fee ratio | 1% | — | — |
| Accounting fee ratio | 2% | — | — |
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.
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Filings & Schedule Manifest
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Sources
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