What is the phone number for Source One Steel, Inc.?

(909) 933-9122. You call Source One Steel, Inc. directly; AssistAnt never sits in the middle.

Where is Source One Steel, Inc.?

Source One Steel, Inc. serves Ontario, CA as a service-area business (no street address shown).

Is Source One Steel, Inc. still in business?

Listed from public business records, last updated October 14, 2026. Call to confirm.

Is Source One Steel, Inc. licensed and insured?

Not verified by AssistAnt yet. Ask for proof of license and insurance before you hire.

Who else is near Ontario?

AssistAnt lists 485 welding and fabrication shops near Ontario. Closest to Source One Steel, Inc.: Designer Metal Works (0.0 mi), JJP Cut Shop (0.2 mi), Metal Engineering & Mfg (0.2 mi).

Source One Steel, Inc. · (909) 933-9122

AssistAnt › Pro directory › Ontario, CA

What we do

Services

🛠️Welding & fabrication

Checked, with dates

🧾 Trust Card · 2 receipts

Listed in the AssistAnt 24/7 directoryBusiness record from Overture Maps open business data (CDLA-Permissive-2.0).
Oct 14
Shown as open for business in the source dataOperating status in the business record.
Oct 14

Not verified yet: Owner has not confirmed this listing yet; License and insurance not reviewed by AssistAnt yet; No AssistAnt job history linked to this listing yet.

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In their words

Customer reviews

“

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Where

Service area

Map of the Ontario, CA area (© Google). Is this your business? Claim it and put up your own photos →

About Source One Steel, Inc.

Source One Steel, Inc. is listed on AssistAnt for welding & fabrication in Ontario, CA.

Built from public business information. Call to confirm before you go.

Contact

Phone: (909) 933-9122
Location: Ontario, CA, 91761 (service area)
Booking: Not bookable online yet. Call the business directly.

Listed from public recordsNot verified yet. Details come from open business data and may be out of date.See the Trust Card: what we checked, how and when →

Quick facts about Source One Steel, Inc.

What is the phone number for Source One Steel, Inc.?: (909) 933-9122. You call Source One Steel, Inc. directly; AssistAnt never sits in the middle.
Where is Source One Steel, Inc.?: Source One Steel, Inc. serves Ontario, CA as a service-area business (no street address shown).
Is Source One Steel, Inc. still in business?: Listed from public business records, last updated October 14, 2026. Call to confirm.
Is Source One Steel, Inc. licensed and insured?: Not verified by AssistAnt yet. Ask for proof of license and insurance before you hire.
Who else is near Ontario?: AssistAnt lists 485 welding and fabrication shops near Ontario. Closest to Source One Steel, Inc.: Designer Metal Works (0.0 mi), JJP Cut Shop (0.2 mi), Metal Engineering & Mfg (0.2 mi).

On AssistAnt 24/7

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AI Visibility Score

Not scored yet. Claimed shops get a score and a town rank.

This score measures how visible this business is to AI assistants. It is not a grade of their work. How it’s scored

What the AIs say

Not checked yet for Ontario. Claim this page and we’ll ask ChatGPT and Claude for you, free.

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Other welding and fabrication shops nearby

Designer Metal WorksOntario, CA · 0.0 mi
JJP Cut ShopOntario, CA · 0.2 mi
Metal Engineering & MfgOntario, CA · 0.2 mi
Calidad IncOntario, CA · 0.5 mi
Accurate Mobile WeldingOntario, CA · 0.5 mi
RJ Welding and Metal Fabrication Inc.Ontario, CA · 0.6 mi

All welding and metal fabrication shops near Ontario, CA (485) →

Every trade and local freelancer in Ontario →

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