Overview

United States Steel Corporation is a steel producer headquartered in Pittsburgh, Pennsylvania, founded in 1901 and employing roughly 10,000 to 50,000 people. It is wholly owned by Nippon Steel following a June 2025 acquisition. The company makes flat-rolled and tubular steel products and serves automotive, construction, energy, electric-vehicle, electronics, appliance, and renewable-energy markets. In 2026 it began work on a $1.9 billion direct reduced iron plant in Arkansas, and Ford is a reported customer.

At a glance

What United States Steel Corporation makes

The company holds IATF 16949, ISO 9001, ISO 14001, and ISO 45001 certifications and produces steel and tubular products through its operations in Pennsylvania and Michigan.

Products and capabilities described on the company's own site include Steel, Emissions, Suspension (source: ussteel.com).

Certifications

United States Steel Corporation is associated with the following certifications in public sources. Confirm the certified scope for the specific plant producing your part:

• IATF 16949 — ussteel.com

• ISO 14001 — ussteel.com

• ISO 45001 — ussteel.com

• ISO 9001 — ussteel.com

Known customers

The counterparties below come from public sources that state the relationship directly. A shared counterparty does not by itself establish a current buying relationship unless the source says so:

• Ford — reported by ussteel.com

Latest developments

• 2026-10-30 — U. S. Steel Breaks Ground on $1.9 Billion Arkansas Direct Reduced Iron Production Plant - www.ussteel.com (ussteel.com)

• 2026-10-22 — U. S. STEEL BOARD AUTHORIZES NEARLY $3 BILLION INVESTMENT IN NEW HOT STRIP MILL AT MON VALLEY WORKS - www.ussteel.com (ussteel.com)

• 2026-09-29 — U. S. Steel Invests $28.3 Million at Great Lakes Works to Install
  State-of-the-Art, Fiber-Optic Laser Beam Welder - www.ussteel.com (ussteel.com)

• 2026-09-15 — U. S. STEEL RECEIVES FINAL REQUIRED PERMIT FOR
  STATE-OF-THE-ART QUENCH AND TEMPERING FACILITY AT FAIRFIELD TUBULAR OPERATIONS - www.ussteel.com (ussteel.com)

• 2026-06-24 — U. S. Steel Invests Approximately $475 Million in State-of-the-Art Quench & Tempering Line at Fairfield Tubular Operations - www.ussteel.com (ussteel.com)

• 2026-04-29 — U. S. STEEL ANNOUNCES FIRST-OF-ITS-KIND IN THE UNITED STATES DRI FACILITY AT BIG RIVER STEEL WORKS - www.ussteel.com (ussteel.com)

Facilities

United States Steel Corporation is headquartered in Pittsburgh, Pennsylvania. Public sources also reference these locations:

• Osceola, Arkansas — ussteel.com

• Pennsylvania, Michigan — ussteel.com

Company details

The company is a wholly owned subsidiary of Nippon Steel, with an estimated annual revenue above $10 billion and Ford among its reported customers. United States Steel Corporation was founded in 1901, has an estimated 10,000-50,000 employees, and is headquartered in Pittsburgh, Pennsylvania. On the LightSource stability read it is rated "Established & active": 125 years in operation (founded 1901). Holds IATF 16949, ISO 14001, ISO 45001, ISO 9001 certification(s) per public sources.

Frequently asked questions

What does United States Steel Corporation make?

United States Steel Corporation is a steel producer headquartered in Pittsburgh, Pennsylvania, founded in 1901 and employing roughly 10,000 to 50,000 people. It is wholly owned by Nippon Steel following a June 2025 acquisition. The company makes flat-rolled and tubular steel products and serves automotive, construction, energy, electric-vehicle, electronics, appliance, and renewable-energy markets. In 2026 it began work on a $1.9 billion direct reduced iron plant in Arkansas, and Ford is a reported customer.

Where is United States Steel Corporation headquartered?

United States Steel Corporation is headquartered in Pittsburgh, Pennsylvania.

When was United States Steel Corporation founded?

United States Steel Corporation was founded in 1901.

How big is United States Steel Corporation?

United States Steel Corporation has an estimated 10,000-50,000 employees, with revenue in the $10B+ range (estimated).

What certifications does United States Steel Corporation hold?

United States Steel Corporation lists IATF 16949 · ISO 14001 · ISO 45001 · ISO 9001 on its website. Confirm the certified scope for the specific plant producing your part.

Who are United States Steel Corporation's customers?

Public sources directly reference Ford as a counterparty of United States Steel Corporation. Confirm current programs with the company, as reported relationships may change.

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Last verified Nov 2026. Is this your company? Request a correction.