Seigasha (菁画舎) is a studio that does support work for Japanese animation. Not much is known about them. More credits can be found on Anime News Network.
Seigasha's credits include:
- Ace Attorney (2016) (2nd Key Animation)
- Active Raid (2nd Key Animation)
- Aikatsu! (2nd Key & In-Between Animation)
- AKB0048 (2nd Key Animation)
- Akikan! (Key & 2nd Key Animation)
- Attack on Titan (2nd Key Animation)
- Baccano! (2nd Key Animation)
- Bakuon!! (2nd Key Animation)
- Beelzebub (Key & 2nd Key Animation)
- Bodacious Space Pirates (2nd Key Animation)
- Btooom! (Key Animation)
- Chousoku Henkei Gyrozetter (2nd Key Animation)
- CLANNAD (Production Assistance for the movie)
- Code Geass (2nd Key & In-Between Animation)
- Cop Craft (Key Animation)
- Cross Ange (2nd Key Animation)
- Demonbane (Key Animation)
- Case Closed (Key & In-Between Animation)
- Detroit Metal City (2nd Key & In-Between Animation)
- Dimension W (2nd Key Animation)
- Dog Days (2nd Key Animation)
- Dr. Slump (Key Animation for the remake)
- Dragon Ball (Key Animation)
- Dragon Ball Z (Key Animation; Production Cooperation for movies 10-13)
- Dragon Ball GT (Key Animation)
- Dragon Ball Super (Key Animation)
- Eureka Seven AO (2nd Key Animation)
- Fafner (Key & In-Between Animation)
- Fairy Tail (2nd Key & In-Between Animation)
- Ga-Rei -Zero- (2nd Key Animation)
- Girls und Panzer (2nd Key Animation)
- Guilty Crown (2nd Key Animation)
- Happy Lesson Advanced (In-Between Animation)
- Heroic Age (2nd Key Animation)
- High School Of The Dead (2nd Key Animation)
- House of Five Leaves (In-Between Animation)
- JoJo's Bizarre Adventure (2nd Key Animation for the 2012 series)
- Kirby: Right Back at Ya! (In-Between Animation)
- Kotetsushin Jeeg (2nd Key Animation)
- Last Exile: Fam, the Silver Wing (2nd Key & In-Between Animation)
- The Lost Village (2nd Key Animation)
- M3: The Dark Metal (2nd Key Animation)
- Maken-ki! (Key & 2nd Key animation)
- Mao-chan (In-Between Animation)
- Mars Daybreak (In-Between Animation)
- Marvel Anime: Iron Man (2nd Key Animation)
- Midnight Occult Civil Servants (Animation Cooperation)
- Michiko & Hatchin (2nd Key Animation)
- Monochrome Factor (2nd Key Animation)
- Motto To Love Ru (animation, assistant animation)
- Nobunaga the Fool (2nd Key Animation)
- Noein (2nd Key Animation)
- Oreimo (2nd Key Animation)
- The Pet Girl of Sakurasou (Key & 2nd Key Animation)
- Sket Dance (2nd Key Animation)
- Samurai Flamenco (2nd Key Animation)
- Squid Girl (2nd Key & In-Between Animation, season 2)
- Strike Witches (2nd Key Animation, season 2 and The Movie)
- Sword Art Online (2nd Key Animation)
- Tantei Opera Milky Holmes (2nd Key Animation)
- Tokyo Ghoul (2nd Key Animation)
- Toradora! (Key Animation)
- Transformers: Cybertron (Key Animation)
- Trickster (Key & 2nd Key Animation)
- Trinity Seven (2nd Key Animation for the series; Key Animation for the movie)
- Valvrave the Liberator (2nd Key Animation)
- Wanna Be the Strongest in the World! (secondary key animation)
- White Album (Key & 2nd Key Animation)
- White Album 2 (2nd Key & In-Between Animation)
- Wizard Barristers: Benmashi Cecil (2nd Key Animation)
- You're Under Arrest! (In-Between Animation for the second season and No Mercy; Key animation for the latter through Yoko Iizuka)
- Yowamushi Pedal (Key & 2nd Key Animation)
- Zoids Genesis (Key Animation)