Proterra INC
General · Based in Burlingame, CA · Licensed in Washington · License #PROTEI*804M1
Expired since Jul 23, 2022
State-verifiedWhat does verified mean?
- State-verified — Checked against WA L&I records, updated daily.
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License facts
Proterra INC has been registered with WA L&I since 2020, based in Burlingame, CA. Principals on record since 2020.
- License type
- CONSTRUCTION CONTRACTOR
- Effective date
- Jul 23, 2020
- Expiration date
- Jul 23, 2022
- Suspend date
- Nov 10, 2021
- UBI
- 603230984
- Business type
- Corporation
- Phone
- (864) 438-0000
- Location
- Burlingame, CA 94010
Source: WA L&I contractor registration — verified Aug 15, 2026. Applies to every row above.
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Claim this free listingBond & insurance on file
What the bond and insurance requirements mean for homeowners
Washington requires general contractors to file a $30,000 surety bond with the Department of Labor & Industries as a condition of registration.
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
| Name | Start date |
|---|---|
| Joshua Paul Ensign | Jul 21, 2020 |
| John Joseph Allen | Jul 21, 2020 |
| Joann Corti Covington | Jul 21, 2020 |
| John David Walsh | Jul 21, 2020 |
| Amy Elizbeth Ard | Jul 21, 2020 |
| Joshua Paul Ensign | Jul 23, 2020 |
| John (jack) Joseph Allen | Jul 23, 2020 |
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. The registration requires a $30,000 surety bond and general liability insurance on file with WA L&I.
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Built from Washington State L&I public records, updated Aug 15, 2026. No star ratings or reviews — verification only.