Top Line is now Steel & O’Brien.
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Meeting the Demands of Diverse Markets

Steel & O’Brien supplies a full line of high-quality 304 and 316 stainless steel process equipment, including sanitary and BPE fittings, tubing and valves for industries with strict hygienic and high-purity standards. We offer 3-A certified products and products that meet bioprocessing equipment (BPE) standards.

Superior Customer Service — Simplified

Steel & O’Brien employs amazing sales and customer service team members who have the knowledge and experience to answer your product and application questions and help you select exactly the right product. In addition to maintaining an enormous inventory of catalog items, we are capable of fabricating custom products from a range of materials to meet unique needs, no matter how complex. Getting both catalog and custom parts from a single source — one with an unmatched level of service — is what makes working with us so simple!