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Nonprofits in MASON, MI

128 tax-exempt organizations with a return on IRS file.

Largest nonprofits in MASON by revenue

Top 5s in MASON

Most raised in gifts and grants

Contributions, gifts and grants received in the year

  1. 1William and Claire Dart Foundation990-PF, year ended Nov 2025$5M
  2. 2Michigan Assessment Consortium Inc990, year ended Sep 2025$3.9M
  3. 3Dart Foundation990-PF, year ended Oct 2025$2.4M
  4. 4Michigan Elementary and Middle School Principals Assoc990, year ended Jun 2025$1.2M
  5. 5University Rehabilitation Alliance Inc990, year ended Dec 2025$817.4K

Largest reserves

Net assets (fund balance) at year end

  1. 1William and Claire Dart Foundation990-PF, year ended Nov 2025$56.5M
  2. 2University Rehabilitation Alliance Inc990, year ended Dec 2025$5.9M
  3. 3Consumer Services Inc990, year ended Dec 2025$3.3M
  4. 4Michigan Assessment Consortium Inc990, year ended Sep 2025$2.9M
  5. 5Michigan Elementary and Middle School Principals Assoc990, year ended Jun 2025$2.8M

Highest-paid people

Compensation from the organization and related organizations, including other pay

  1. 1Tammy Hannah MBA Otrl CbisPresident and CEO · University Rehabilitation Alliance Inc$239.2K
  2. 2Kathy Dewsbury-WhitePresident/CEO · Michigan Assessment Consortium Inc$234.7K
  3. 3Ed RoeberSecretary/Assessment Director · Michigan Assessment Consortium Inc$231.1K
  4. 4Ellen VorenkampDirector/Professional Learning Dir. · Michigan Assessment Consortium Inc$203.2K
  5. 5Kimberly RogersPresident/Ce · Consumer Services Inc$188.4K

All nonprofits in MASON, A–Z (page 1 of 2)