🐜AssistAnt · Pro directory
There are 484 welding and metal fabrication shops within 25 miles of Ontario, CA in the AssistAnt directory as of October 17, 2026, 34 of them based in Ontario itself. None are verified by AssistAnt yet, so check a business’s license and insurance before you hire it. Verified businesses are listed first, then by distance. No business can pay for a higher spot.
Welding & fabrication near Ontario
- Source One Steel, Inc.
Ontario, CA · 0.4 mi
Not verified yet
(909) 933-9122
- Anaheim Infrared Tech Inc
Ontario, CA · 0.4 mi
Not verified yet
(909) 923-8522
- Accurate Mobile Welding
Ontario, CA · 0.4 mi
Not verified yet
(909) 225-9010
- Designer Metal Works
Ontario, CA · 0.4 mi
Not verified yet
(909) 947-5777
- Metal Engineering & Mfg
Ontario, CA · 0.5 mi
Not verified yet
(909) 321-5990
- Th Laser Inc
Ontario, CA · 0.6 mi
Not verified yet
(909) 459-1400
- California Die Casting
Ontario, CA · 0.6 mi
Not verified yet
(909) 947-9947
- JJP Cut Shop
Ontario, CA · 0.6 mi
Not verified yet
(909) 284-1901
- City Tool Works Inc
Ontario, CA · 0.7 mi
Not verified yet
(909) 923-8080
- Max-q Metal Products, Inc.
Ontario, CA · 0.8 mi
Not verified yet
(909) 786-0688
- Calidad Inc
Ontario, CA · 0.8 mi
Not verified yet
(909) 947-3937
- Elite Sheet Metal Inc
Ontario, CA · 0.8 mi
Not verified yet
(909) 930-3913
- TPS Fab
Ontario, CA · 0.8 mi
Not verified yet
(714) 892-1300
- Nickolas Steel, Inc.
Ontario, CA · 0.9 mi
Not verified yet
(714) 738-4647
- Empire Sheet Metal
Ontario, CA · 0.9 mi
Not verified yet
(909) 923-2927
- RJ Welding and Metal Fabrication Inc.
Ontario, CA · 1.0 mi
Not verified yet
(909) 930-2900
- Diversifab, Inc.
Ontario, CA · 1.0 mi
Not verified yet
(909) 923-6789
- R&i Industries, Inc.
Ontario, CA · 1.1 mi
Not verified yet
(909) 923-7747
- Cinco Iron Works Inc
Ontario, CA · 1.2 mi
Not verified yet
(909) 391-1077
- Lynwood Pattern Service
Ontario, CA · 1.2 mi
Not verified yet
(909) 321-0517
- Jamac Steel
Ontario, CA · 1.4 mi
Not verified yet
(909) 983-7592
- PBY Plastics, Inc.
Ontario, CA · 1.4 mi
Not verified yet
(909) 930-6700
- Upland Contracting Inc
Ontario, CA · 1.4 mi
Not verified yet
(909) 983-3656
- SizeMetal
Ontario, CA · 1.6 mi
Not verified yet
(800) 935-1973
- Santana's Iron Work
Ontario, CA · 2.3 mi
Not verified yet
(909) 984-8077
- Martinez Steel Corporation
Ontario, CA · 2.6 mi
Not verified yet
(909) 946-0686
- Performance Aluminum
Ontario, CA · 2.8 mi
Not verified yet
(909) 391-4131
- Hdz Fence And Welding
Rancho Cucamonga, CA · 3.2 mi
Not verified yet
(909) 223-3392
- ALL WELDING
Rancho Cucamonga, CA · 3.2 mi
Not verified yet
(909) 948-1535
- Majestic Metals Socal
Rancho Cucamonga, CA · 3.2 mi
Not verified yet
(909) 846-6434
Showing the 30 listed first. Search by ZIP code to see more.
Questions
- How many welding and metal fabrication shops are near Ontario, CA?
- 484 within 25 miles, 34 in Ontario, as of October 17, 2026.
- Which welding and metal fabrication shops near Ontario, CA are verified?
- None yet. Verified means AssistAnt checked the business registration and insurance; unverified listings come from public business records.
- Can a business pay to rank higher on AssistAnt?
- No. Verified businesses are listed first, then everyone else by distance. Placement cannot be bought, and AssistAnt never sells your contact information.
More in Ontario
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- Insulation contractors in Ontario, CA19 businesses
- Solar installers in Ontario, CA54 businesses
- Towing in Ontario, CA184 businesses
- Auto repair in Ontario, CA2867 businesses
- Collision repair & auto glass in Ontario, CA659 businesses
- Diesel & truck repair in Ontario, CA139 businesses
- Motorcycle, marine & small engine repair in Ontario, CA98 businesses
- Machine shops & CNC in Ontario, CA451 businesses
- Computer & phone repair / IT in Ontario, CA445 businesses
- Excavation & heavy equipment in Ontario, CA28 businesses
- Trucking in Ontario, CA206 businesses
Nearby towns
- Montclair, CA 5 mi
- Rancho Cucamonga, CA 5 mi
- Chino, CA 5 mi
- Mira Loma, CA 5 mi
- Upland, CA 5 mi
- Pomona, CA 7 mi
- La Verne, CA 9 mi
- Fontana, CA 10 mi
- Jurupa Valley, CA 11 mi
- Norco, CA 11 mi