EntityWire/Illinois business entity search →/CORNERSTONE SERVICE INC
Tax-exempt organization
CORNERSTONE SERVICE INC
CORNERSTONE SERVICE INC's Employer Identification Number (EIN) is 36-2706578.
At a glance
- EIN
- 36-2706578 · 362706578
- Legal name
- CORNERSTONE SERVICE INC
- Also filed as
- CORNERSTONE SERVICES, INC.
- Address on file
- 777 JOYCE ROAD, JOLIET, IL 60436-1876
- Records show
- Tax-exempt organization; employer with a benefit plan
- Latest record
- 2026-09
Benefit plans
DOL Form 5500 filings (EFAST2) · DOL Form 5500-SF filings (EFAST2) · records as of 2025-12-22
- Benefit plan 501, 2024 filing
- CORNERSTONE SERVICES, INC. WELFARE BENEFIT PLAN
- Source: DOL 5500 · as of 2025-12-22
- Participants (start of year)
- 489
- Source: DOL 5500 · as of 2025-12-22
- Plan features
- Health (other than dental or vision); Life insurance; Dental; Vision; Long-term disability; Death benefits (other than life insurance)
- Source: DOL 5500 · as of 2025-12-22
- Plan type
- Single-employer plan
- Source: DOL 5500 · as of 2025-12-22
- Business code (NAICS)
- 624200
- Source: DOL 5500 · as of 2025-12-22
- Benefit plan 2, 2024 filing
- CORNERSTONE SERVICES 403(B) RETIREMENT PLAN
- Source: DOL 5500-SF · as of 2025-09-25
IRS exempt organization record
IRS Exempt Organizations Business Master File · records as of 2026-09
- Tax-exempt status
- 501(c)(3) charitable, religious, educational
- Source: IRS · as of 2026-09
- Deductibility
- Contributions are deductible
- Source: IRS · as of 2026-09
- Foundation classification
- Publicly supported charity (170(b)(1)(A)(vi))
- Source: IRS · as of 2026-09
- IRS ruling date
- 1969-12
- Source: IRS · as of 2026-09
- NTEE code
- P800
- Source: IRS · as of 2026-09
- Latest tax period on file
- 2025-06
- Source: IRS · as of 2026-09
- Revenue (latest 990)
- $56,495,881
- Source: IRS · as of 2026-09
- Assets (latest 990)
- $45,820,252
- Source: IRS · as of 2026-09
What this record is
Public filings that carry this EIN (DOL Form 5500 filings (EFAST2), DOL Form 5500-SF filings (EFAST2) and IRS Exempt Organizations Business Master File), shown as filed. Nothing is scraped from the IRS, and a public-record match is not IRS TIN validation.
What it is not
Registry status, formation date, and registered agent come from the Illinois Secretary of State, Department of Business Services; see the Illinois business entity search.
If something is wrong
A name, address, or classification here is what the source published. To correct the source, file with it; to have this page removed, see corrections and removal.
Other Illinois businesses on file
- ASSYRIAN UNIVERSAL ALLIANCE FOUNDATION INCEIN 36-2976266
- AMERICAN SOCIETY OF ANESTHESIOLOGISTSEIN 36-2181944
- BENEVOLENT & PROTECTIVE ORDER OF ELKS OF THE USAEIN 36-0793011
- AON CONSULTING, INC.EIN 22-2232264
- AMERICAN ACADEMY OF ORTHOPEDIC SURGEONSEIN 36-2110592
- MMS USA HOLDINGS, INC.EIN 36-2677628
Look up another business
Free search. No account required.