Sunnen Products Company Email Format

Machinery ManufacturingMissouri, United States201-500 Employees

Sunnen Products Company, founded in 1924 and based in St. Louis, Missouri, operates in the machinery manufacturing industry. It designs and distributes bore sizing and finishing equipment, engine rebuilding equipment, and tooling and abrasives for precision manufacturing. The company emphasizes a broad catalog alongside custom engineered solutions intended to meet customer expectations.

Its customer base comprises manufacturers and shops that require high-precision bore finishing and measurement capabilities, supporting precision machining and engine rebuilding applications. In 2026, Sunnen announced a strategic partnership with TIBO Tiefbohrtechnik GmbH to expand its capabilities in deep hole machining, signaling ongoing expansion of its global reach.

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