NAICS 238120 · Structural Steel and Precast Concrete Contractors

Steel and welding contractors in San Mateo, CA

6 licensed steel and welding contractors · every license checked against the issuer's file

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328 listingsHow results are ordered
03

J W Mcclenahan Co

San Mateo, CA · (650) 345-1691

CA-CSLB 308818 · C4 C20 +3PlumberHeating and air conditioningExcavation, grading and paving+1
License activechecked Oct 19, 2026
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05

Mitchell S L & Co

San Mateo, CA · (650) 593-4588

CA-CSLB 649463 · B D24General contractorSteel and welding contractor
License activechecked Oct 19, 2026
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07

A & D Welding Inc

San Carlos, CA · (650) 593-4040

CA-CSLB 865582 · C60Steel and welding contractor
License activechecked Oct 19, 2026
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09

Dap

Burlingame, CA · (650) 692-5806

CA-CSLB 1048462 · C23Steel and welding contractor
License activechecked Oct 19, 2026
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11

Fable Inc

San Carlos, CA · (650) 598-9616

CA-CSLB 718691 · C23Steel and welding contractor
License activechecked Oct 19, 2026
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14

Outdoor Keepers

San Carlos, CA · (650) 595-3988

CA-CSLB 1066949 · D24 D38 +1Steel and welding contractorSpecialty contractor
License activechecked Oct 19, 2026
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15

R & R Metal Fabrication

San Carlos, CA · (650) 591-6292

CA-CSLB 743225 · C23 C43 +1Steel and welding contractorHeating and air conditioning
License activechecked Oct 19, 2026
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17

B Metal Fabrication Inc

South San Francisco, CA · (650) 615-7705

CA-CSLB 681290 · C23 C43Steel and welding contractorHeating and air conditioning
License activechecked Oct 19, 2026
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20

Beny's Iron Works

South San Francisco, CA · (415) 740-8599

CA-CSLB 810486 · C23Steel and welding contractor
License activechecked Oct 19, 2026
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