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Optima Steel International is open, with all Sales and Staff working a hybrid schedule. To get in touch with any OSI contact, please call their direct office line, as all lines continue to be forwarded. If you need assistance reaching any OSI contact, please call 925-338-2300.


Optima Steel International (Optima) is uniquely positioned to bring value to both customers and suppliers. Optima has focused on the specialization and globalization of the steel industry by forging a low-cost organizational structure – flat, responsive, and focused – committed to executing this unique business model. Optima establishes strong customer relationships based on the reliable, consistent quality, and timely delivery of products.

Optima is committed to creating value for its customers. Whether it is developing consistent supply chains for niche “hard-to-source” opportunities, or providing global options to supplement customary purchases, Optima’s expertise in supply chain development, logistics, international compliance, and inventory management allows the Team to deliver business solutions tailored to each customer.

Optima continuously develops strategies to maximize the quality, production, and transportation economies to provide low-cost/high-value solutions and is dedicated to customer service. Consisting of a team of account administrators that are committed to meeting the needs of all customers, along with a proprietary software program, the team is able improve and streamline inventory management. The proprietary software program provides a supply chain management tool that improves back-office transactions and allows for a unique information-sharing culture that substantially enhances and strengthens customer relations.