The high-tech industry in the Portland area dates back to at least the 1940s , with Tektronix and Electro Scientific Industries as pioneers. These two companies, and later Intel , led to the creation of a number of Spin-off s or Start-up s, some of which were remarkably successful.
COMPANIES AND SUBSIDIARIES
The following is a partial list of past and present companies founded in the Silicon Forest or which have a major Subsidiary located there:
