OpenERISA

Cornerstone Corporation

Westwood, MA, 02090

EIN 04-3056848
Plans
1
Total participants
207
Filing years
2024, 2023, 2022, 2021, 2020
NAICS
531120

Benefit plans on file

YearFormPlan #Plan nameParticipants
2024Form 5500-SF001Cornerstone Corporation Employee Retirement Plan42
2023Form 5500-SF001Cornerstone Corporation Employee Retirement Plan42
2022Form 5500-SF001Cornerstone Corporation Employee Retirement Plan41
2021Form 5500-SF001Cornerstone Corporation Employee Retirement Plan39
2020Form 5500-SF001Cornerstone Corporation Employee Retirement Plan43

Data shown as filed with the U.S. Department of Labor (EBSA), filing years 2020–2025; not validated by OpenERISA. View official filings for this EIN on the DOL EFAST2 search.

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