Tax-exempt organization ยท Files a Form 5500
CORNERSTONE SERVICE INC
Also filed as CORNERSTONE SERVICES, INC.
777 JOYCE ROAD, JOLIET, IL 60436-1876
EIN
36-2706578
Tax-exempt status
501(c)(3) charitable, religious, educational
IRS · 2026-09
Deductibility
Contributions are deductible
IRS · 2026-09
Foundation classification
Publicly supported charity (170(b)(1)(A)(vi))
IRS · 2026-09
IRS ruling date
1969-12
IRS · 2026-09
NTEE code
P800
IRS · 2026-09
Latest tax period on file
2025-06
IRS · 2026-09
Revenue (latest 990)
$56,495,881
IRS · 2026-09
Assets (latest 990)
$45,820,252
IRS · 2026-09
Benefit plan 501, 2024 filing
CORNERSTONE SERVICES, INC. WELFARE BENEFIT PLAN
DOL · 2025-12-22
Participants (start of year)
489
DOL · 2025-12-22
Plan features
code 4A4B4D4E4H4L4Q
DOL · 2025-12-22
Plan type
Single-employer plan
DOL · 2025-12-22
Business code (NAICS)
624200
DOL · 2025-12-22
Benefit plan 2, 2024 filing
CORNERSTONE SERVICES 403(B) RETIREMENT PLAN
DOL · 2025-09-25