Epson Portland Inc. (EPI) is the U.S.-based manufacturing subsidiary of Japan's Seiko Epson Corporation (SEC). Historically, EPI manufactured printers and several other products at its Hillsboro OR location. From its opening day in July of 1986 until August of 2001, EPI built over 15 million dot matrix and ink jet printers for business, government and personal use.
Using Epson proprietary automated robotics, EPI currently manufactures ink cartridges for ink jet printers, produces ink to fill Epson cartridges, performs precision injection molding of proprietary plastic parts, and provides specialized engineering services.
On April 1, 2015, Epson Seattle, Inc. in Longview, WA, was merged into EPI. The Longview location manufactures synthetic quartz crystals for further manufacturing by Epson's Micro-Device Division's electronics products manufactured in several other Epson locations around the world.
Other SEC affiliates in the US such as, Epson America, Inc., Epson Electronics, Inc. and others market, sell and distribute Epson products throughout the Americas.
Another SEC affiliate, Epson America, Inc., sells, markets and distributes Epson products throughout the Americas.