Tax-exempt organization ยท Files a Form 5500
MIDDLESEX SCHOOL
PO BOX 9122, CONCORD, MA 01742-9122
EIN
04-2103821
Tax-exempt status
501(c)(3) charitable, religious, educational
IRS · 2026-09
Deductibility
Contributions are deductible
IRS · 2026-09
Foundation classification
School
IRS · 2026-09
IRS ruling date
1944-02
IRS · 2026-09
NTEE code
B250
IRS · 2026-09
Latest tax period on file
2025-06
IRS · 2026-09
Revenue (latest 990)
$59,021,357
IRS · 2026-09
Assets (latest 990)
$556,036,805
IRS · 2026-09
Benefit plan 3, 2024 filing
MIDDLESEX SCHOOL SAVINGS PLAN
DOL · 2026-06-11
Participants (start of year)
299
DOL · 2026-06-11
Plan features
403(b)(7) custodial
DOL · 2026-06-11
Plan type
Single-employer plan
DOL · 2026-06-11
Business code (NAICS)
611000
DOL · 2026-06-11
Benefit plan 5, 2024 filing
MIDDLESEX SCHOOL PENSION ACCOUNT
DOL · 2026-06-11