TSMC is the world's largest publicly traded semiconductor foundry by market value.
TSMC stands for Taiwan Semiconductor Manufacturing Company. Unlike an integrated chipmaker that designs and manufactures its own branded processors, TSMC primarily manufactures chips designed by other companies. This business model is called a pure-play foundry.
Founded in 1987, TSMC helped establish the modern contract-manufacturing model for advanced semiconductors. It produces chips for customers including Nvidia, Apple, AMD, and many other technology companies, subject to commercial agreements and export rules.
TSMC's market capitalization reflects its strategic role in the global chip industry, especially its ability to manufacture advanced process nodes at enormous scale. The phrase “largest semiconductor company” can be ambiguous because it may refer to revenue, chip design, manufacturing capacity, or market value; this question specifies the publicly traded foundry category.