O’Brien Steel Service Co.

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For nearly five decades, O’Brien Steel Service has sustained a commitment to one overriding goal: Be Easy to Buy From. With our broad range of in-stock carbon and quenched & tempered steel, comprehensive processing, machining & fabricating capabilities, and our large truck fleet, we are prepared and experienced to take on your job of any size.


January 2, 2024

We are excited to announce our acquisition of Sligo Steel’s Madison, IL location!  Existing and future customers within the greater St. Louis region, welcome! We look forward to serving you.

Phone: (314) 231-3050 | Email: sales@obriensteel.com