NIS America (U.S., American subsidiary of Nippon Ichi Software software company)
Section23 Films (U.S.) (the successor company to ADV films, which split into several companies in 2009. "Section 23" handles distribution, "Sentai Filmworks" and "Maiden Japan" handles license acquisition, "AEsir Holdings" inherited ADV's old library of titles, "Seraphim Studios" handles new English dubs, and "Valkyrie Media Productions" handles the Anime Network).
Right Stuf Inc. (U.S., main distribution subdivision rebranded "Nozomi Entertainment" in 2007 with "Lucky Penny" following along)
Central Park Media (de facto defunct since mid-2007 when new DVD releases ceased, even though they continued to license their titles for TV and VOD, they entered a state of limbo. Officially declared bankruptcy and assets liquidated in mid-2009. Several of their titles have been acquired by other anime distributing companies prior to and following Central Park Media's bankruptcy and liquidation, such as ADV Films, Bandai Entertainment, Funimation Entertainment, Media Blasters, Nozomi Entertainment, etc.)
Geneon Entertainment (U.S. branch "Geneon USA" (formerly "Pioneer Entertainment") defunct September 2007. Parent Japanese company ceased in-house distribution of its own titles, many of which have been re-licensed by Funimation and Sentai Filmworks. Parent company "Geneon Entertainment" then sold off its own ownership to NBCUniversal subsidiary UPI, which then merged Geneon with its own "Universal Pictures Japan" division on February 1, 2009, renaming the new company "Geneon Universal Entertainment Japan").
Harmony Gold USA (U.S., produced the seminal Robotech series in 1985; stopped releasing new anime in the late 1980s and virtually dormant in the 1990s, the company technically still exists and issues re-releases)