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PeerBasis
Compensation Comparability Determination

The St Sophia School

Executive Director / CEO

EIN 931431376
NC · NTEE B99
FY ending 2025-06-30
June 9, 2026

This analysis benchmarks the total compensation of Ariadne Zitsos, Executive Director / CEO ($58,333) against every comparable organization that fit the selection criteria — 437 in total — drawn systematically from IRS Form 990 filings, not a hand-picked subset.

Compensation sits at approximately the 54th percentile of comparable organizationswithin the typical range

Benchmarked executive: Ariadne Zitsos — reported title “HEAD OF SCHOOL”, a direct title match to the Executive Director / CEO role.

How comparable organizations were selected

437 organizations qualified on sector, size, and geography 437 within the band form the benchmarked peer set.

Distribution of comparable compensation

$125 total compensation of comparable organizations → $282,076 $58,333
$12,92410th
$31,35225th
$54,431Median
$79,50375th
$108,52190th
$58,333This org · 54th
p10$12,924
p25$31,352
p50$54,431
p75$79,503
p90$108,521
$58,333

Comparable organizations

Each figure is Form 990 Part VII columns D + F (reportable pay plus other compensation and benefits; column F may include amounts from related organizations), normalized to NC cost of living (BEA RPP, 2023) and to its filing year (CPI-U); the reported amount is on each linked 990.

OrganizationStateRevenueMatched titleComp
(reported)
Comp
(adjusted)
FY
Lost Women Of Science Initiative Inc CA$330,499 President & Ceo $50,000 $42,891 2024
Parkinson's Resource Organization Inc CA$330,835 Executive Director $117,064 $100,419 2024
Rage Against Addiction Inc MD$332,810 Executive Di $79,997 $76,492 2023
Creative Spirit Center Inc MI$332,837 Executive Di $77,019 $78,973 2024
Play Like A Girl TN$332,839 Ceo $76,666 $77,992 2025
Arvf Corporation The Alicia Rose Victorious Foundation NJ$327,773 President And Co-founder $83,615 $74,163 2024
California Community Colleges Chief CA$327,645 Executive Dir. $19,254 $16,516 2024
Southern Bible Institute & College TX$333,859 President $93,643 $95,804 2023
Building Hope Impact Fund Inc DC$327,138 President (Thru 05/23) $10,000 $8,975 2023
South Carolina Restaurant & Lodging SC$326,945 Executive Dir. $3,012 $3,122 2024
De Lasting Purpose Foundation GA$334,752 Director $4,000 $3,996 2024
Sisters Working It Out IL$325,802 President $65,000 $63,482 2024
Childrens' Disabilities Information TX$325,779 President $45,000 $46,038 2023
Arizona Human Rights Foundation AZ$325,581 Executive Director $135,032 $149,335 2021
Center For Higher Educational Achievement MI$325,257 Executive Director $73,917 $75,792 2024
Golden Star Educational Services CA$336,326 President $50,609 $44,695 2023
Purposeful Growth Institute Inc CT$324,888 Ceo $50,025 $46,595 2024
App Inventor Foundation CA$324,686 Executive Director $130,000 $114,810 2023
Centro Las Olas CA$336,915 President & Boardmember $19,936 $16,661 2025
Washington Central Friends Of Education Inc VT$337,605 Executive Director $34,851 $35,877 2023
The Black Institute Inc NY$337,742 President $50,292 $45,146 2024
Philadelphia Learning Collaborative PA$323,500 Executive Di $133,851 $136,518 2023
Little Hands Preschool Inc MD$323,107 Executive Director $84,800 $78,758 2024
Pseads CA$338,306 Ceo $15,000 $13,248 2023
Career Girls CA$321,925 Executive Director $122,232 $104,852 2024

Comp (reported) is the figure on each organization's Form 990 (columns D + F); Comp (adjusted) normalizes it to NC cost of living and 2025 dollars. Click any organization to verify the figure on ProPublica.

Methodology

Comparable organizations were drawn from electronically filed IRS Form 990 returns and matched on sector (NTEE code), budget (a size-adaptive revenue band that tightens as the organization grows), and geography (same-state first, broadening only when too few peers qualify); every organization within the band forms the peer set. To compare fairly across regions and years, peer compensation is normalized to NC cost of living (BEA Regional Price Parities, 2023) and to the subject's filing year (CPI-U). The figure benchmarked is Form 990 Part VII, Section A, columns D + F — reportable pay plus other compensation, benefits, and deferred amounts (column F may include amounts from related organizations) — with the chief executive matched by role. Related-organization amounts (column E) and institutional trustees are excluded. Full methodology: peerbasis.org/methodology.

Sample, role match & sensitivity

Sensitivity — the subject's percentile under alternative compensation definitions:

BasisSubject percentile
Total compensation (D + F), cost-of-living + inflation adjusted — the PeerBasis default54th
Total compensation (D + F), as reported (no adjustments)53rd
Reportable pay only (column D), adjusted55th
All sources (D + E + F), adjusted49th

If the percentile moves materially across these definitions, the result is sensitive to methodology choices, and the board should weigh which basis best fits its facts.

Rebuttable presumption of reasonableness · 26 CFR 53.4958-6

Compensation paid by a tax-exempt organization is presumed reasonable — shifting the burden to the IRS — when three requirements are met. This report supplies the comparability data for the second. The board should record the following in its minutes concurrently with its decision:

Draft board minutes — executive compensation

  1. The compensation of the Executive Director / CEO (Ariadne Zitsos) was approved in advance by [the Board / Compensation Committee], composed of members with no conflict of interest with respect to the arrangement.
  2. Prior to its determination, the authorized body obtained and relied upon appropriate comparability data, namely the PeerBasis Compensation Comparability Determination dated June 9, 2026, comparing compensation against 437 similarly situated organizations (Same NTEE sector (B99), nationwide + budget 0.67–1.5× revenue).
  3. The authorized body determined that total compensation of $58,333 is reasonable (approximately the 54th percentile of comparable organizations) and documented the basis for this determination concurrently, on [date], by a vote of [__ for / __ against].

Sources: IRS Form 990 e-file data (apps.irs.gov); IRS Business Master File (NTEE classification). Every figure traces to an original public filing — click any organization above to verify it on ProPublica. PeerBasis is a service of Prismind Analytics; its methodology is published, was commissioned for independent adversarial review, and discloses its own limitations. This report is comparability data to support a board's good-faith determination under IRC 4958; it is not legal or tax advice. Generated by PeerBasis on June 9, 2026.