Category:Marine steam engine manufacturers of the United States

• Allaire Iron Works (2 C, 2 F)
• Etna Iron Works (New York) (3 F)
• Henry Esler & Co. (1 F)
• Joshua Hendy Iron Works (2 F)
• Novelty Iron Works (1 C, 18 F)
• Riley & Cowley (2 C, 1 F)
• West Street Foundry (2 F)

S

• Samuel F. Hodge & Company (5 F)