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PeerBasis
Compensation Comparability Determination

Vashon-maury Island Nature Center

Executive Director / CEO

EIN 825064648
WA · NTEE C30
FY ending 2024-12-31
June 9, 2026

This analysis benchmarks the total compensation of Bianca Perla, Executive Director / CEO ($66,560) against every comparable organization that fit the selection criteria — 152 in total — drawn systematically from IRS Form 990 filings, not a hand-picked subset.

Compensation sits at approximately the 39th percentile of comparable organizationswithin the typical range

Benchmarked executive: Bianca Perla — reported title “SCIENCE DIRE”, selected as the organization's highest-paid individual — no exact title match, so confirm this is a comparable role.

How comparable organizations were selected

152 organizations qualified on sector, size, and geography 152 within the band form the benchmarked peer set.

Distribution of comparable compensation

$1,826 total compensation of comparable organizations → $148,447 $66,560
$20,64110th
$47,30925th
$70,637Median
$91,74575th
$104,47790th
$66,560This org · 39th
p10$20,641
p25$47,309
p50$70,637
p75$91,745
p90$104,477
$66,560

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 WA 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
South Bay Clean Creeks Coalition CA$304,230 Exec. Director $104,058 $97,775 2025
Bold Visions Conservation MT$302,674 Executive Director $67,749 $81,569 2024
Tahoe Institute For Natural Science NV$301,900 Executive Dir. $79,428 $91,553 2023
Grow Wild Inc MT$300,418 Executive Director $104,805 $126,184 2024
Sugi Foundation CA$299,320 Excfo $68,000 $65,584 2024
Sunflower Star Laboratory CA$299,106 Project Mgr. $26,085 $25,158 2024
Bucks County Audubon Society PA$309,340 Executive Dir. $67,336 $75,002 2024
Mountain Valleys Resource Conservation & Development Council NC$310,347 Executive Director $44,122 $50,921 2024
Lake Pepin Legacy Alliance MN$297,817 Executive Director $111,764 $123,349 2024
Sustainability Matters Inc VA$311,002 Executive Di $59,155 $65,680 2023
Coastal Connections Inc FL$291,704 Executive Director $42,000 $45,372 2023
Nashville Tree Conservation Corps TN$290,930 Former Exec $82,558 $96,928 2024
Pangeaseed Foundation HI$319,879 Executive Director $77,227 $79,508 2023
The Susquehanna Greenway Partnershp PA$320,810 Executive Di $76,336 $87,538 2023
Santa Barbara Audubon Society CA$322,002 Executive Dir. $67,866 $63,768 2025
Middlesex Land Trust CT$322,665 Executive Di $66,111 $71,280 2023
Four Winds Nature Institute Inc VT$285,418 Executive Dir. $63,811 $71,738 2024
Blue Scholars Initiative FL$284,046 Program Director $30,468 $31,969 2024
Oahu Agriculture And Conservation Assoc HI$325,224 Executive Dir. $95,881 $95,881 2024
Wildlife Ecology Institute MT$327,259 Executive Dir. $100,039 $120,446 2024
Project Regeneration CA$279,043 Executive Director $131,250 $126,587 2024
Regenerative Earth CO$278,331 Exec Director, Board Chair $67,562 $74,497 2023
Center For Sustainable Economy WA$277,153 President $98,400 $98,400 2024
Alaska Whale Foundation AK$331,469 Executive Director $92,083 $98,331 2024
Outdoor New Mexico NM$276,415 Executive Director $70,640 $84,862 2024

Comp (reported) is the figure on each organization's Form 990 (columns D + F); Comp (adjusted) normalizes it to WA cost of living and 2024 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 WA 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 default39th
Total compensation (D + F), as reported (no adjustments)47th
Reportable pay only (column D), adjusted43rd
All sources (D + E + F), adjusted38th

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 (Bianca Perla) 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 152 similarly situated organizations (Same NTEE sector (C30), nationwide + budget 0.67–1.5× revenue).
  3. The authorized body determined that total compensation of $66,560 is reasonable (approximately the 39th 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.