Coverage by line
Premium dollars by benefit type (bundled lines overlap)
- Life$493K
- Short-term disability$493K
- Long-term disability$493K
- Other$493K
- Vision$44K
Filings through .
The Middlesex Corporation
EIN 04-2534615constructionLatest filing 2025
Plans
2
Retirement
1
$129.2M assets
Health & Benefits
1
$536K premiums
Participants
1,956
1 SPECTACLE POND ROAD - LITTLETON, MA 01460978-742-4400middlesexco.comLinkedIn501-1000 employeesconstruction
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 / $536K premiums / 877 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
MIDDLESEX CORPORATION RETIREMENT SAVINGS PLAN
401(k)
Assets$129.2M
Participants1,173
On the plan page
Fees vs peersAudit gradeAsset trajectoryContributionsSch C providers
Open plan
Health & Benefits#501
THE MIDDLESEX CORPORATION EMPLOYEE BENEFITS PLAN
Mixed - THE LINCOLN NATIONAL LIFE INSURANCE COMPANY
Premiums$536K
Covered lives877
On the plan page
Premium breakdownCarriersBrokersCoverage stats
Open plan
Retirement plans
1 plan on this EIN
| Plan | Name | Type | Assets | Participants | Latest year |
|---|---|---|---|---|---|
| #001 | MIDDLESEX CORPORATION RETIREMENT SAVINGS PLAN | 401(k) | $129.2M | 1,173 | 2025 |
- #001 · 401(k) · 20251,173
Health & Benefits plans
1 plan on this EIN
| Plan | Name | Funding | Carrier | Premiums | Covered | Latest year |
|---|---|---|---|---|---|---|
| #501 | THE MIDDLESEX CORPORATION EMPLOYEE BENEFITS PLAN | Mixed | THE LINCOLN NATIONAL LIFE INSURANCE COMPANY | $536K | 877 | 2025 |
- #501 · Mixed · THE LINCOLN NATIONAL LIFE INSURANCE COMPANY · 2025877
Retirement plans
Health & Benefits plans