There's a hole in the sky through which things can fly.

-We do what we must because we can

-The best damn applied sciences company on Earth

-A clear picture of the future

-A Trusted Friend in Science

-A clear focus on the future

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Aperture Science, Inc. is a United States-based scientific research corporation appearing in Portal and Portal 2, as well as other sources.
Its main facility is the Aperture Science Enrichment Center, located in Upper Michigan, with at least one other base of operations in Cleveland, Ohio. Originally a shower curtain manufacturer named Aperture Fixtures, it evolved over the course of half a century into an experimental physics research institution and a bitter rival of Black Mesa.