Filings through .
The Workers' Compensation Rating and Inspection Bureau of Mass.
EIN 04-1591010Finance and InsuranceLatest filing 2025
Plans
2
Retirement
1
$27.0M assets
Health & Benefits
1
Participants
136
101 ARCH STREET, 5TH FLOOR - BOSTON, MA 02110617-439-9030
Plans on this EIN
2 filingsHealth & Benefits portfolio - carriers, brokers and premium across this company's health and benefits plan.
Plan summaries
Each card links to its plan page. The plan page shows fees vs peers, audit grade, history and counterparties.
Retirement#002
INSURANCE ORGANIZATIONS' SAVINGS TRUST 401(K) PLAN
401(k)
Assets$27.0M
Participants71
On the plan page
Fees vs peersAudit gradeAsset trajectoryContributionsSch C providers
Open plan
Health & Benefits#510
WCRIBMA - VEBA
Self-funded
Premiums$0
Covered lives0
On the plan page
Premium breakdownCarriersBrokersCoverage stats
Open plan
Retirement plans
1 plan on this EIN
| Plan | Name | Type | Assets | Participants | Latest year |
|---|---|---|---|---|---|
| #002 | INSURANCE ORGANIZATIONS' SAVINGS TRUST 401(K) PLAN | 401(k) | $27.0M | 71 | 2025 |
- #002 · 401(k) · 202571
Health & Benefits plans
1 plan on this EIN
| Plan | Name | Funding | Carrier | Premiums | Covered | Latest year |
|---|---|---|---|---|---|---|
| #510 | WCRIBMA - VEBA | Self-funded | - | $0 | 0 | 2025 |
- #510 · Self-funded · 20250
Retirement plans
Health & Benefits plans