EntityWire/South Dakota business entity search →/BLACK HILLS WORKS INC
Tax-exempt organization
BLACK HILLS WORKS INC
BLACK HILLS WORKS INC's Employer Identification Number (EIN) is 46-0341382.
At a glance
- EIN
- 46-0341382 · 460341382
- Legal name
- BLACK HILLS WORKS INC
- Address on file
- 3650 RANGE RD, RAPID CITY, SD 57702-0627
- Records show
- Tax-exempt organization; employer with a benefit plan
- Latest record
- 2026-09
Benefit plans
DOL Form 5500 filings (EFAST2) · records as of 2026-01-19
- Benefit plan 502, 2024 filing
- THE CONTRACTORS PLAN TRUST HEALTH REIMBURSEMENT ARRANGEMENT
- Source: DOL 5500 · as of 2026-01-19
- Participants (start of year)
- 206
- Source: DOL 5500 · as of 2026-01-19
- Plan features
- Health (other than dental or vision)
- Source: DOL 5500 · as of 2026-01-19
- Plan type
- Single-employer plan
- Source: DOL 5500 · as of 2026-01-19
- Business code (NAICS)
- 624310
- Source: DOL 5500 · as of 2026-01-19
- Benefit plan 502, 2023 filing
- THE CONTRACTORS PLAN TRUST HEALTH REIMBURSEMENT ARRANGEMENT
- Source: DOL 5500 · as of 2025-10-16
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
- 1978-12
- Source: IRS · as of 2026-09
- NTEE code
- J300
- Source: IRS · as of 2026-09
- Latest tax period on file
- 2025-06
- Source: IRS · as of 2026-09
- Revenue (latest 990)
- $50,094,090
- Source: IRS · as of 2026-09
- Assets (latest 990)
- $25,241,380
- 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 South Dakota Secretary of State, Division of Business Services; see the South 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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- SOUTH DAKOTA STATE UNIVERSITY FOUNDATIONEIN 46-0273801
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- DAKOTA WESLEYAN UNIVERSITYEIN 46-0224589
- RURAL OFFICE OF COMMUNITY SERVICESEIN 46-0365648
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