OpenERISA

Mammoth Survey Co. INC.

Billings, MT, 59101

EIN 86-3753261
Plans
1
Total participants
4
Filing years
2024, 2023, 2022, 2021
NAICS
541370

Benefit plans on file

YearFormPlan #Plan nameParticipants
2024Form 5500001Mammoth Survey 401K1
2023Form 5500001Mammoth Survey 401K1
2022Form 5500001Mammoth Survey 401K1
2021Form 5500001Mammoth Survey 401K1

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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