Quantum Management Service INC

General · Lynnwood, WA · License #QUANTMS816MU

Registration expired per WA L&I as of Jul 31, 2021.

What do these mean?

Quantum Management Service INC is one of 1,590 General contractors registered in Lynnwood, registered with WA L&I since 2019. Registered longer than roughly half of General contractors in Lynnwood. Principals on record since 2019.

How confident can you be in Quantum Management Service INC?

Are they licensed, bonded, and insured?

Registration expired per WA L&I as of Jul 31, 2021.

Source:License facts on this pageVerify at WA L&I

Are they who they say they are?

Not yet verified — Quantum Management Service INC hasn't claimed this listing. Own this business? Claim it free.

Do other pros stand behind them?

No endorsements yet from other licensed contractors in Lynnwood.

Do they have jobs on record?

Not yet measured — Quantum Management Service INC hasn't run jobs through Subser. Performance data comes from real jobs, not reviews.

Subser doesn't do star ratings or reviews — just verified records. What do these mean?

License facts

License type
CONSTRUCTION CONTRACTOR
Effective date
Jul 31, 2019
Expiration date
Jul 31, 2021
UBI
601666266
Business type
Corporation
Phone
(425) 776-1294
Location
Lynnwood, WA 98036

Source: WA L&I contractor registration — checked Nov 12, 2026. Applies to every row above.

Registration lapsed Jul 2021 per WA L&I records.

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Bond & insurance on file

What the bond and insurance requirements mean for homeowners

Registration as a general contractor in Washington requires a $30,000 surety bond on file with the Department of Labor & Industries.

The bond is a limited fund a homeowner (or subcontractor or supplier) can make a claim against, through the courts, if a registered contractor fails to meet its obligations on a job. Contractors must also keep general liability insurance on file — at least $50,000 in property damage and $200,000 in public liability coverage, or a $250,000 combined single limit — which covers damage the contractor causes, not workmanship disputes. The rows above are the bond and insurance filings L&I publishes for this registration; whether a specific filing applies to a specific project depends on its dates and terms.

Principals

NameStart date
Matthew Bailey ShafferJul 31, 2019
John Frederick MaihoferJul 31, 2019
Brett Alan CarltonJul 31, 2019
Karin Marie Christianson-HartJul 31, 2019
Thomas P. Hoban Jr.Jul 31, 2019
Shawn A HobanJul 31, 2019
What is a General contractor licensed to do in Washington?

A general contractor in Washington is registered with the Department of Labor & Industries to perform or oversee work in multiple building trades. General contractors can take on whole projects — remodels, additions, new construction — and can hire specialty subcontractors for individual trades. A $30,000 surety bond and general liability insurance, filed with WA L&I, are required for this registration. Washington currently lists 1,590 General contractors registered in Lynnwood.

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Subser doesn't have reviews or star ratings. This page shows Quantum Management Service INC's WA L&I record — registration status, bond and liability coverage, and principals on file — plus any endorsements from other licensed contractors.

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Built from Washington State L&I public records, updated Nov 12, 2026. Subser doesn't do star ratings or reviews — just verified records.