How big is Open Source Instruments Inc.'s plan?

Open Source Instruments Inc.'s plan reported $73K in assets and 4 participants for 2024.

Original filing (PDF)20250716072404NAL0002830081001

Open Source Instruments Inc.

Name: Open Source Instruments Inc. — Open Source, Form 5500 (2024)
Creator: Open Source Instruments Inc.
License: https://www.usa.gov/government-works

Form 5500-SF

FILING_RECEIVED

Open Source Instruments, Inc. 401(k) Plan

401(k) retirement plan · Open Source Instruments Inc.'s Open Source Instruments, Inc. 401(k) Plan held $73K in plan assets for 4 participants in 2024.

Active participants

Accounts w/ balance

Plan assets (EOY)

$73K

Net assets (EOY)

$73K

People on this filing

Shirley Horner signed Open Source Instruments Inc.'s 2024 Form 5500 as plan administrator.

Shirley Horner — Plan Administrator — Form 5500 signer

Get verified email & phone for these signers

Signer names are public record from the Form 5500 e-signature.

Plan identifiers

Open Source Instruments Inc.'s EIN is 14-1911312.

EIN 14-1911312

Plan number 001

Plan year 2024

ACK ID 20250716072404NAL0002830081001

Official Form 5500 document

Download the official 2024 Form 5500 (PDF) for Open Source Instruments Inc. from the U.S. Department of Labor's EFAST2 system.

Download the official 2024 Form 5500 (PDF)

Plan features

Open Source Instruments Inc.'s plan includes profit-sharing, ERISA 404(c) participant direction, a 401(k) feature, automatic enrollment, a default investment (QDIA).

Decision-maker contacts

One unlock reveals every key decision-maker — plan signer, CFO, HR & Benefits — with verified email + LinkedIn for OPEN SOURCE INSTRUMENTS INC.

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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

Vendor & structure

100

Helping the score

Cost not scored — no comparable Schedule H expense data for this cohort.
High account-holder ratio — balance-holders per active participant in the top 15% of peers (89th percentile).

Plan sponsor

Name

OPEN SOURCE INSTRUMENTS INC

EIN

all filings

Address

135 BEAVER ST · STE 207 · WALTHAM, MA · 02452

Phone

(617) 733-1553

Industry

Professional & Technical Services

Plan administrator