Part of having a well-diversified portfolio is investing in international companies. International companies give investors added diversification (location and currency), exposure to growth opportunities around the world, and access to industries that may not be as well represented in the United States.

If you're looking for three great foreign companies to invest in, look no further than these.

Taiwan Semiconductor Manufacturing (NYSE: TSM) is the world's leading chipmaker. It's become a top player in the industry through its customized microchips used in many technology products. In fact, you're likely reading this on a device with a TSMC microchip in it.

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Source Fool.com