Coverage by line
Premium dollars by benefit type (bundled lines overlap)
- Dental$832K
- Health$827K
- Prescription drug$827K
- Other$586K
- Life$498K
- Long-term disability$461K
- +1 more
Sponsor portfolio
CORNERSTONE RESEARCH, INC.
EIN 94-3092543Latest filing 2025
Plans
2
Retirement
1
$346.4M assets
Welfare
1
$2.4M premiums
Participants
2,895
699 BOYLSTON STREET, 5TH FLOOR - BOSTON, MA 02116617-927-3082
Plans on this EIN
2 filingsBenefits portfolio analytics
1 plan / $2.4M premiums / 1,653 covered livesCarrier market share
Premium dollars by Schedule A carrier
35%top
- DELTA DENTAL OF CALIFORNIA35%
- KAISER FOUNDATION HEALTH PLAN INC35%
- THE LINCOLN NATIONAL LIFE INSURANCE COMPANY19%
- VISION SERVICE PLAN6%
- RELIASTAR LIFE INSURANCE COMPANY3%
- +2 more
Broker market share
Schedule A broker compensation
100%top
- LOCKTON COMPANIES, LLC100%
Plan deep-dives
Per-plan teasers. The full analytics (fees vs peers, audit grade, trajectory, counterparties) live on each plan detail page.Retirement#001
CORNERSTONE RESEARCH 401(K) AND PROFIT SHARING PLAN
401k
Assets$346.4M
Participants1,841
Inside the deep dive
Fees vs peersAudit gradeAsset trajectoryContributionsSch C providers
Open plan deep dive
Welfare#502
CORNERSTONE HEALTH AND WELFARE PLAN
Mixed - DELTA DENTAL OF CALIFORNIA
Premiums$2.4M
Covered lives1,653
Inside the deep dive
Premium breakdownCarriersBrokersCoverage stats
Open plan deep dive
Retirement plans1
| Plan # | Name | Type | Assets | Participants | Latest year | |
|---|---|---|---|---|---|---|
| 001 | CORNERSTONE RESEARCH 401(K) AND PROFIT SHARING PLAN | 401k | $346.4M | 1,841 | 2024 |
Welfare plans1
| Plan # | Name | Funding | Carrier | Premiums | Covered | Latest year | |
|---|---|---|---|---|---|---|---|
| 502 | CORNERSTONE HEALTH AND WELFARE PLAN | Mixed | DELTA DENTAL OF CALIFORNIA | $2.4M | 1,653 | 2025 |
Retirement plans
Welfare plans