Short answers, pulled from the story.
Streamline Pictures was founded in Los Angeles, California, in late 1988 by Carl Macek, a television writer and producer who had worked on Robotech, and Jerry Beck, an animation historian and film distributor.
The first high-profile release by Streamline Pictures was Laputa: Castle in the Sky, directed by Hayao Miyazaki, which premiered at the Roxy Screening Room in Philadelphia on the 24th of March 1989.
Streamline Pictures released Akira theatrically at The Biograph in Georgetown, Washington, D.C. on Christmas Day 1989, the 25th of December.
Streamline Pictures became one of the early catalysts of the sub versus dub debate. Carl Macek's philosophy of Americanized dubbing, which he described in interviews published in Protoculture Addicts and Animag, became synonymous with the negative connotation that many fans attached to localized dubs.
Streamline Pictures stopped producing new anime releases in 1997 and closed entirely in 2000. Its Modelworks division was sold in 1998 and became a separate company called Avatar Creations.
Streamline Pictures released only dubbed anime, making it the only company in its field to eschew subtitled releases. The only exceptions were a later subtitled release of Akira and their Robotech Collection, which included original Japanese episodes alongside dubbed Robotech counterparts.