Nagasaki

Nagasaki  (Japanese: 長崎) is a Japanese vehicle manufacturer in the HD Universe of the Grand Theft Auto series.

Overview
Nagasaki is quite diverse and primarily known for its high performance motorbikes and ATVs, as well as producing specialized boats and helicopters. Given the variety of products and real life influences, it can be said Nagasaki isn't based on one specific company.

Trivia

 * The name of the company is inspired by the city of Nagasaki in Japan. This is further evidenced by the company's logo which is extremely similar to the Nagasaki flag.