Coverage by line
Premium dollars by benefit type (bundled lines overlap)
- Health$322K
- Dental$133K
- Vision$133K
- Life$133K
- Short-term disability$133K
- Long-term disability$133K
- +1 more
Filings through .
Terraphase Engineering Inc
EIN 27-3543127environmental servicesLatest filing 2025
Plans
2
Retirement
1
$35.9M assets
Health & Benefits
1
$455K premiums
Participants
445
1300 CLAY ST., SUITE 1000 - OAKLAND, CA 94612510-645-1850terraphase.comLinkedIn51-200 employeesenvironmental services
Plans on this EIN
2 filingsHealth & Benefits portfolio - carriers, brokers and premium across this company's health and benefits plan.
Benefits portfolio analytics
1 plan / $455K premiums / 161 covered lives
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Plan summaries
Each card links to its plan page. The plan page shows fees vs peers, audit grade, history and counterparties.
Retirement#001
TERRAPHASE ENGINEERING 401K PLAN
401(k)
Assets$35.9M
Participants251
On the plan page
Fees vs peersAudit gradeAsset trajectoryContributionsSch C providers
Open plan
Health & Benefits#501
TERRAPHASE ENGINEERING, INC. HEALTH AND WELFARE PLAN
Fully insured - KAISER FOUNDATION HEALTH PLAN INC.
Premiums$455K
Covered lives161
On the plan page
Premium breakdownCarriersBrokersCoverage stats
Open plan
Retirement plans
1 plan on this EIN
| Plan | Name | Type | Assets | Participants | Latest year |
|---|---|---|---|---|---|
| #001 | TERRAPHASE ENGINEERING 401K PLAN | 401(k) | $35.9M | 251 | 2025 |
- #001 · 401(k) · 2025251
Health & Benefits plans
1 plan on this EIN
| Plan | Name | Funding | Carrier | Premiums | Covered | Latest year |
|---|---|---|---|---|---|---|
| #501 | TERRAPHASE ENGINEERING, INC. HEALTH AND WELFARE PLAN | Fully insured | KAISER FOUNDATION HEALTH PLAN INC. | $455K | 161 | 2025 |
- #501 · Fully insured · KAISER FOUNDATION HEALTH PLAN INC. · 2025161
Retirement plans
Health & Benefits plans