Coverage by line
Premium dollars by benefit type (bundled lines overlap)
- Health$2.7M
- Prescription drug$2.7M
- Dental$486K
- Vision$486K
- Other$214K
- Life$138K
- +2 more
Sponsor portfolio
MAINSPRING ENERGY, INC.
EIN 27-2430529renewables & environmentLatest filing 2025
Plans
2
Retirement
1
$23.0M assets
Welfare
1
$3.5M premiums
Participants
1,073
3601 HAVEN AVE - MENLO PARK, CA 94025650-241-9320mainspringenergy.comLinkedIn201-500 employeesrenewables & environment
Plans on this EIN
2 filingsBenefits portfolio analytics
1 plan / $3.5M premiums / 883 covered livesCarrier market share
Premium dollars by Schedule A carrier
77%top
- KAISER FOUNDATION HEALTH PLAN INC77%
- METROPOLITAN LIFE INSURANCE COMPANY15%
- UNITED OF OMAHA LIFE INSURANCE COMPANY9%
Broker market share
Schedule A broker compensation
100%top
- ALLIANT INSURANCE SERVICES, INC.100%
Plan deep-dives
Per-plan teasers. The full analytics (fees vs peers, audit grade, trajectory, counterparties) live on each plan detail page.Retirement#001
MAINSPRING ENERGY, INC. 401K PLAN
401k
Assets$23.0M
Participants543
Inside the deep dive
Fees vs peersAudit gradeAsset trajectoryContributionsSch C providers
Open plan deep dive
Welfare#501
MAINSPRING ENERGY, INC. HEALTH AND WELFARE PROGRAM
Fully Insured - KAISER FOUNDATION HEALTH PLAN, INC.
Premiums$3.5M
Covered lives883
Inside the deep dive
Premium breakdownCarriersBrokersCoverage stats
Open plan deep dive
Retirement plans1
| Plan # | Name | Type | Assets | Participants | Latest year | |
|---|---|---|---|---|---|---|
| 001 | MAINSPRING ENERGY, INC. 401K PLAN | 401k | $23.0M | 543 | 2024 |
Welfare plans1
| Plan # | Name | Funding | Carrier | Premiums | Covered | Latest year | |
|---|---|---|---|---|---|---|---|
| 501 | MAINSPRING ENERGY, INC. HEALTH AND WELFARE PROGRAM | Fully Insured | KAISER FOUNDATION HEALTH PLAN, INC. | $3.5M | 883 | 2025 |
Retirement plans
Welfare plans