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  2. Bison Engineering, Inc.
  • Retirement analytics
  • Plan summaries
  • Retirement plans

Filings through Oct 24, 2026.

Bison Engineering, Inc.

EIN 81-0453817-environmental services-Latest filing 2025
Plans
2
Retirement
2
$10.1M assets
Health & Benefits
0
Participants
116
3143 E. LYNDALE - HELENA, MT 59601406-442-5768bison-eng.comLinkedIn11-50 employeesenvironmental services
Plans on this EIN
2 filings
#002401(k)-$5.3M - 61 part#001ESOP-$4.8M - 55 part

Retirement portfolio analytics

2 plans aggregated / $10.1M assets / 116 participants

Assets by plan

Share of aggregate retirement assets

  • PROFIT SHARING PLAN (#002)$5.3M
  • ENGINEERING, INC. ESOP (#001)$4.8M
Total $10.1MSelect a row to open it

Participants by plan

Active + retired + deferred vested

  • PROFIT SHARING PLAN (#002)61
  • ENGINEERING, INC. ESOP (#001)55
Total 116Select a row to open it

Plan summaries

Each card links to its plan page. The plan page shows fees vs peers, audit grade, history and counterparties.

Retirement#002

BISON ENGINEERING 401K PROFIT SHARING PLAN

401(k)

Assets$5.3M
Participants61
On the plan page
Fees vs peersAudit gradeAsset trajectoryContributionsSch C providers
Open plan
Retirement#001

BISON ENGINEERING, INC. ESOP

ESOP

Assets$4.8M
Participants55
On the plan page
Fees vs peersAudit gradeAsset trajectoryContributionsSch C providers
Open plan

Retirement plans

2 plans on this EIN

PlanNameTypeAssetsParticipantsLatest year
#002BISON ENGINEERING 401K PROFIT SHARING PLAN401(k)$5.3M612025
#001BISON ENGINEERING, INC. ESOPESOP$4.8M552025
  • BISON ENGINEERING 401K PROFIT SHARING PLAN$5.3M
    #002 · 401(k) · 202561
  • BISON ENGINEERING, INC. ESOP$4.8M
    #001 · ESOP · 202555
Retirement plans

On this page

  1. Retirement analytics
  2. Plan summaries
  3. Retirement plans
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