Established in 1987 by ex-Madhouse staff and stopping abruptly in 2002, Triangle Staff was a minor animation company.
Some more credits can be found on Anime News Network.
Credits include:
- Mother Goose Video Wordbook (known as Mother Goose Songs & Rhymes outside Japan) (OVA, the studio's very first animated project. Originally released between 1988 and 1991 in Japan, the United Kingdom, and America)
- A Chinese Ghost Story (the animated feature, with Wang Film Productions)
- CB Chara Nagai Go World
- Colorful (Torajiro Kishi's Colorful, not the 2010 anime movie by Sunrise)
- Devilman (OVAs, with Oh! Production)
- éX-Driver (with Actas, episodes 1 & 2)
- Hareluya II Boy
- Knight Hunters (Verbrechen & Strafe OVA, first season of the TV series by Studio DEEN and Magic Bus and the second season, Glühen was handled by ufotable, all distributed internationally by TMS Entertainment.)
- Macross Plus
- Magic User's Club (both OVA and series, the latter with Madhouse)
- Niea_7
- Serial Experiments Lain (with AIC)
- Shamanic Princess (with Bandai Visual)
- Space Pirate Mito (with Sunrise)
- WXIII: Patlabor The Movie 3 (the company was still producing this film at the time it went defunct. Production was later taken over by Madhouse, though Triangle Staff's involvement would be acknowledged in the film's end credits.)