· 2022–2024 · DOL EFAST2

O'CONNOR Corporation — O'CONNOR Group of Companies, Form 5500 (2025)

Original filing (PDF)20260515171105NAL0009429585001

O'CONNOR Corporation

Form 5500-SF

FILING_RECEIVED

O'CONNOR Group of Companies Retirement Savings Plan

401(k) retirement plan · O'CONNOR Corporation's O'CONNOR Group of Companies Retirement Savings Plan held $25.2M in plan assets for 38 participants in 2025.

Active participants

38

Accounts w/ balance

59

Plan assets (EOY)

$25.2M

Net assets (EOY)

$25.2M

Plan health score

Top-tier plan health

Directional indicator from public Form 5500 data — compliance & integrity, total plan cost, participant health and vendor stack, benchmarked against same-size peers. Not a fiduciary tool. Based on 70% of scoring inputs for this filing.

Compliance & integrity

100

Total plan cost

n/a

Plan health

85

Vendor & structure

100

Helping the score

Cost not scored — no comparable Schedule H expense data for this cohort.

Decision-maker contacts

One unlock reveals every key decision-maker — plan signer, CFO, HR & Benefits — with verified email + LinkedIn for O'CONNOR CORPORATION.

Plan sponsor

Name

O'CONNOR CORPORATION

EIN

02-0540558all filings

Address

P.O. BOX 269 · CANTON, MA · 02021

Phone

(617) 364-9000

Industry

Construction

Plan administrator

Same as plan sponsor.

Plan characteristics

Plan number

002

Plan year

2025

Plan year begin

2025-01-01

Tax period

2025-12-31

Filed

2026-05-15

Pension benefit codes

2E · Profit-sharing

2F · ERISA section 404(c)

2G · Total participant-directed accounts

2J · 401(k) feature

2K · 401(m) arrangement

3D · Pre-approved plan (master / prototype / VS)

3H · Sponsor in controlled / affiliated group

2T · Default investment account (QDIA)

Service providers (Schedule C)

Small plans don't disclose service providers

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