PeerBasis
Environment · MI

Isle Royale Natural History Association

Isle Royale Natural History Association reported paying Mark Wilcox, Executive Director, $49,907 in total compensation (FY 2023).

That places Mark Wilcox at approximately the 48th percentile among 79 similarly sized environment nonprofits (median $51,259).

$267,731Total revenue (FY 2023)
$49,907Total executive compensation
48thPercentile vs. peers

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Generate a board-ready comparability report for Isle Royale Natural History Association — named comparables, percentiles, methodology, and the 26 CFR 53.4958-6 minutes language a board can use toward the rebuttable presumption.

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Comparable environment nonprofits

Compensation is normalized to MI cost of living (BEA Regional Price Parities); each organization's reported figure is on its linked 990.

OrganizationStateRevenueTotal comp
Coral Springs Nature Center & FL$275,781 $47,810
Sustainable Contra Costa CA$258,679 $28,800
Arctictoday AK$256,031 $26,719
Green Cambridge Inc MA$281,267 $61,375
Growing Communities Inc CA$253,966 $123,423
Teens Take On Climate Inc WI$253,820 $133,167
Triple Bottom Line Institute Incorporated FL$252,750 $71,462
Justme For Justus ME$252,348 $46,402

View original IRS filings on ProPublica →