Private company

Riley & Cowley

American marine engineering firm

Riley & Cowley was an American marine engineering firm established in 1869 in Brooklyn, New York. The company specialized in the design and manufacture of marine steam engines for small watercraft such as steam yachts, launches and tugboats, and was particularly noted for its light and compact, high-performance, compound and triple expansion engines.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

  • Industryengineering1
1887 Riley & Cowley advertisement
Photo: Unknown author Unknown author, Public domain, via Wikimedia Commons3

Riley & Cowley was an American marine engineering firm established in 1869 in Brooklyn, New York. The company specialized in the design and manufacture of marine steam engines for small watercraft such as steam yachts, launches and tugboats, and was particularly noted for its light and compact, high-performance, compound and triple expansion engines.2

Sources

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