International Steel Company
International Steel Company was an Evansville, Indiana steel manufacturer known for producing Landing Ship, Tank vessels during World War II.
Last updated August 25, 2026
Overview
International Steel Company was a historical steel company based in Evansville, Indiana, United States. Incorporated in 1910, it operated as an industrial manufacturer and became associated with wartime shipbuilding during World War II. Its best-known contribution was the production of Landing Ship, Tank vessels, commonly abbreviated as LSTs. These amphibious ships were designed to carry tanks, vehicles, cargo, and troops directly onto beaches, making them important to Allied logistical operations in the war. The company’s historical identity is closely connected to Evansville’s industrial activity along the Ohio River. Its wartime production placed the company within the broader network of American manufacturers that converted industrial capacity to military purposes. The available reference material does not establish the full scale of its prewar steel operations, its complete product range, ownership history, production volumes, or the precise date on which the original company ceased operating. A surviving business activity associated with the company is identified as International Revolving Door in Evansville. This suggests that part of the organization or its industrial legacy continued under a specialized revolving-door operation, but the available material does not document the legal relationship in sufficient detail to determine whether it represents a direct corporate successor, a surviving division, or a later business using the name. International Steel Company is therefore best understood as a defunct American industrial company with a documented World War II shipbuilding role rather than as a contemporary international steel brand. Historical interest also derives from the preservation and public interpretation of USS LST-325, a surviving LST displayed on the Ohio River in Evansville. The vessel provides local context for the company’s wartime manufacturing legacy, although the available sources do not state that USS LST-325 itself was built by International Steel Company.
History
International Steel Company was incorporated in 1910 in Evansville, Indiana. The available historical record identifies it as a steel company, but does not provide a detailed account of its founders, early facilities, ownership, management, or commercial customers. Evansville’s location on the Ohio River gave the company a setting connected to regional transportation and manufacturing networks, although the supplied reference does not quantify its operations or describe its production technology. The company’s most clearly documented historical role came during World War II, when it produced Landing Ship, Tank vessels. LSTs were amphibious logistics ships intended to transport armored vehicles, other equipment, supplies, and personnel and to unload them in shallow coastal areas. Their production formed part of the United States wartime industrial mobilization, in which civilian manufacturers took on military contracts and expanded or adapted their manufacturing capabilities. International Steel Company’s association with these ships is the principal reason it remains notable in historical references. The company’s later corporate history is not fully described in the available material. The original International Steel Company is presented as a historical or defunct steel company, while its remaining division is identified as International Revolving Door in Evansville. The source does not specify when the steel business ended, how the division was separated or reorganized, or whether International Revolving Door remains legally part of the original corporation. Accordingly, the revolving-door operation is treated as an associated surviving division rather than as a fully documented successor company. Evansville’s continuing connection with LST history is reinforced by the presence of USS LST-325, which is docked on the Ohio River and available for historical tours. The vessel serves as a preserved example of the type of wartime ship associated with the company’s manufacturing legacy. The supplied reference does not identify International Steel Company as the builder of USS LST-325, so no such attribution is made here. Because the available sources are brief, important aspects of the company’s history remain undocumented in this dossier, including its original product mix, plant size, employment, contract chronology, leadership, ownership, financial performance, and exact end date. Further archival or maritime-industry research would be required for a fuller corporate history.
- 1910Incorporation
International Steel Company was incorporated in Evansville, Indiana.
- World War II LST production
During World War II, the company produced Landing Ship, Tank vessels for military use.
- Revolving-door division continues under an associated name
The remaining division associated with International Steel Company is identified as International Revolving Door in Evansville.
Products and positioning
A historical Evansville industrial manufacturer whose documented wartime identity is centered on steel production and Landing Ship, Tank shipbuilding.
Landing Ship, TankMilitary amphibious vessel
Landing Ship, Tank vessels were amphibious cargo and troop ships designed to carry tanks, vehicles, supplies, and personnel and to unload them close to shore. International Steel Company is documented as having created or produced LST warships during World War II. The available source does not specify individual hull numbers, contract quantities, production dates, or whether the company built every major LST variant.
Steel and fabricated industrial productsSteel manufacturing
The company was identified as a steel company, indicating a broader industrial manufacturing role beyond its wartime shipbuilding work. The supplied sources do not provide a verified catalog of its ordinary commercial steel products, fabrication services, grades, or customer industries.
Revolving doorsBuilding products
International Revolving Door is identified as the remaining division associated with International Steel Company in Evansville. The available reference supports an association with revolving-door manufacturing or supply, but does not describe specific models, specifications, markets, or the legal structure of the division.
Flagship businesses
- Landing Ship, Tank (LST) warships produced during World War II
Sources
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