Back to filter
Original filing (PDF)20250718143701NAL0001973185001
S3 POWER, INC.
Form 5500-SF
FILING_RECEIVED
S3 INTEGRATED POWER, INC. 401(K) PLAN
401(k) retirement plan
Active participants
0
Accounts w/ balance
7
Plan assets (EOY)
$1.2M
Net assets (EOY)
$1.2M
Plan health score (directional)
87
/ 100
Grade A
Top-tier plan health
Directional indicator computed from public Form 5500 data — compliance, concentration, cost, vendor stack and participation. Not a fiduciary tool.
Compliance & disclosures
100
Concentration risk
75
Total plan cost
75
Vendor stack
100
Participation health
90
Knocking points off
- No active participants reported but plan still holds assets.
Helping the score
- Concentration not scored — Schedule of Assets PDF not yet parsed for this plan.
- No Schedule C compensation disclosed — likely a small plan or unbundled.
Decision-maker contacts
CFO / Head of HR / Benefits Manager — verified email + LinkedIn for S3 POWER, INC..
Plan sponsor
Name
S3 POWER, INC.
EIN
01-0618180
Address
P.O. BOX 856 · NORWOOD, MA · 02062
Phone
(781) 762-2118
Industry
Utilitiessee all
Plan administrator
Same as plan sponsor.
Plan characteristics
Plan number
001
Plan year
2024
Plan year begin
2024-01-01
Tax period
2024-12-31
Filed
2025-07-18
Pension benefit codes
2E · Profit-sharing
2J · 401(k) feature
3D · Pre-approved plan (master / prototype / VS)
Audit & trust (Schedule H)
Auditor
—
Trustee / custodian
—
Trustee phone
—
Small plan (5500-SF) — Schedule H data not available.
Service providers (Schedule C)
Small plans don't disclose service providersRelated plans
Similar-size Utilities plans
SOLARIANT CAPITAL LLC
SOLARIANT CAPITAL LLC
$1.2M · 23 participants
CULTIVATE POWER
CULTIVATE POWER 401(K) PLAN
$1.2M · 24 participants
ELAWAN WIND NORTH AMERICA, INC.
ELAWAN WIND NORTH AMERICA 401(K) PLAN
$1.1M · 17 participants
POWER POINT ENERGY LLC
POWER POINT ENERGY LLC PENSION PLAN
$1.2M · 3 participants
PD CONTROL LLC
PD CONTROL LLC 401(K) PROFIT SHARING PLAN
$1.1M · 8 participants
IHI POWER SERVICES CORP.
YARDS CREEK REPRESENTED EMPLOYEE SAVINGS PLAN
$1.2M · 7 participants
Large plans in Massachusetts
FIDELITY MANAGEMENT TRUST COMPANY
FIDELITY GROWTH COMPANY COMMINGLED POOL
$91.5B
STATE STREET GLOBAL ADVISORS TRUST COMPANY
STATE STREET S&P 500(R) INDEX NON-LENDING SERIES FUND CLASS A
$91.0B
FIDELITY MANAGEMENT TRUST COMPANY
FIDELITY CONTRAFUND COMMINGLED POOL
$59.7B
STATE STREET GLOBAL ADVISORS TRUST COMPANY
STATE STREET S&P 500(R) INDEX SECURITIES LENDING SERIES FUND CLASS I
$53.6B
GEODE CAPITAL MANAGEMENT TRUST COMPANY, LLC
SPARTAN GROUP TRUST FOR EMPLOYEE BENEFIT PLANS SPARTAN 500 INDEX POOL
$47.6B
STATE STREET GLOBAL ADVISORS TRUST COMPANY
STATE STREET S&P 500(R) INDEX SECURITIES LENDING SERIES FUND CLASS II
$46.7B
