Ketsurui Zaibatsu is the Ketsurui Clan's industrial conglomerate; it includes Ketsurui Fleet Yards, Kessaku Systems, production of the Nekovalkyrja, and the Zaibatsu's manufacturing centers. The Ketsurui Zaibatsu is primarily concerned with the production of goods for the Star Army of Yamatai and only rarely competes directly with other corporations.

KZ is also known and respected for its stringent standards of quality and for exceptionally good customer service.

WickedArms Industries was part of the Ketsurui Zaibatsu.

This is a (currently incomplete) list of notable Ketsurui Zaibatsu products.

• Durandium Alloy
  • Transparent Durandium
• Xiulurium
• Yama-Dura
• Yamataium
  • Yamataium Graft
• Zesuaium

• Chrome Egg
• Universally Networked Scalar Array Field Emitter
• Star Army - Covert Directional Listening Device - SA-CDLD-1
• Star Army - Covert Directional Listening Device - SA-CDLD-2
• Collapsible Rapid Deployment Module
• Compact Collapsible Rapid Deployment Module
• Star Army Datapad, Type 33
• Star Army Aerospace Flight Suit, Type 32
• Star Army Environmental Suit, Type 28 (AMES)
• Medical Scanner Charging Station
• Portable Medical Scanner PMS-1C
• Portable Medical Scanner PMS-1M
• Star Army Science Scanner, Type 31
• Flashlight, Floating, Type 32