Aperture Science
2???
Centuries after the founding of Aperture Science, for only a day the logo was modified to be defaced with Wheatley's name when he took over the Aperture Science Enrichment Center. This takeover and vandalism of the Aperture Science image was very short-lived, with GLaDOS quickly taking control of the facility back and removing all of the damage and vandalism done by Wheatley.
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