Gainax
- Catalog of works, writer and artist pages, and technical support. [Japanese and English]
- http://www.gainax.co.jp/

Radix/Zero-G Room
- Animation workshop, artwork, trailers, and company information. [Japanese and English]
- http://www.radixzero.co.jp/

Anime International Company (AIC)
- News, productions, trailers, talent profiles and interviews, forum, and company information. [Japanese, English, Korean, and Chinese Traditional]
- http://www.aicanime.com/

Tatsunoko Production
- Information on the company's works. [Japanese and English]
- http://www.tatsunoko.co.jp/

Production I.G
- Projects, services, licensing, company information, and columns. [Japanese and English]
- http://www.productionig.com/

Studio Pierrot
- Information on the company and its productions. [Japanese and English]
- http://www.pierrot.co.jp/