EntityWire/North Dakota business entity search →/KNIFE RIVER CORPORATION
Employer with a benefit plan
KNIFE RIVER CORPORATION
KNIFE RIVER CORPORATION's Employer Identification Number (EIN) is 92-1008893.
At a glance
- EIN
- 92-1008893 · 921008893
- Legal name
- KNIFE RIVER CORPORATION
- Also filed as
- Knife River Holding Co
- Address on file
- 1150 WEST CENTURY AVENUE, BISMARCK, ND 585065568
- Records show
- SEC filer; employer with a benefit plan
- Latest record
- 2026-08-14
SEC records
SEC EDGAR company filings · records as of 2026-08-14
- SEC CIK
- 0001955520
- Source: SEC · as of 2026-08-14
- Industry (SIC)
- Mining & Quarrying of Nonmetallic Minerals (No Fuels) (1400)
- Source: SEC · as of 2026-08-14
- State of incorporation
- DE
- Source: SEC · as of 2026-08-14
- Ticker
- KNF
- Source: SEC · as of 2026-08-14
- Latest SEC filing
- SCHEDULE 13G/A 2026-08-14
- Source: SEC · as of 2026-08-14
Benefit plans
DOL Form 5500 filings (EFAST2) · records as of 2025-09-03
- Benefit plan 4, 2024 filing
- KNIFE RIVER CORPORATION SALARIED EMPLOYEES' PENSION PLAN
- Source: DOL 5500 · as of 2025-09-03
- Participants (start of year)
- 199
- Source: DOL 5500 · as of 2025-09-03
- Plan features
- Defined benefit (cash balance); Defined benefit (cash balance, other); Defined benefit (frozen); Plan sponsor is a member of an affiliated service group
- Source: DOL 5500 · as of 2025-09-03
- Plan type
- Single-employer plan
- Source: DOL 5500 · as of 2025-09-03
- Business code (NAICS)
- 237310
- Source: DOL 5500 · as of 2025-09-03
- Benefit plan 5, 2024 filing
- KNIFE RIVER MASTER TRUST
- Source: DOL 5500 · as of 2025-09-02
- Plan type
- Direct filing entity
- Source: DOL 5500 · as of 2025-09-02
- Benefit plan 501, 2024 filing
- KNIFE RIVER CORPORATION HEALTH AND WELFARE BENEFITS PROGRAM
- Source: DOL 5500 · as of 2025-07-14
- Participants (start of year)
- 3,395
- Source: DOL 5500 · as of 2025-07-14
What this record is
Public filings that carry this EIN (DOL Form 5500 filings (EFAST2) and SEC EDGAR company filings), 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 North Dakota Secretary of State, Business Services; see the North Dakota 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.
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