Tachibana General Laboratories

Tachibana Labs, or Tachibana Laboratories, is a fictional company within Serial Experiments Lain. They are mostly known for being the company that employed Masami Eiri as Project Director of Protocol 7 up until his death. They are the company responsible for the creation of Copland OS, by far the most popular OS for NAVIs, and also manufacture hardware.

Trivia
Tachibana is the name of citrus fruit, there is a possibility that the creators of Lain chose this name in order to emulate Apple.