JustSystems
| Native name | 株式会社ジャストシステム | 
|---|---|
| Company type | Public | 
| TYO: 4686 | |
| Industry | Computer software | 
| Founded | 1979, in Tokushima City, Tokushima, Japan | 
| Founders | Hatsuko Ukigawa Kazunori Ukigawa | 
| Headquarters | Tokushima City, Tokushima, Japan | 
| Key people | Kyotaro Sekinada (president) | 
| Products | Software and services | 
| Revenue | ¥13,088 million (year ending 31 March 2007) | 
| Owner | Keyence Corporation (43.96%) Kazunori Ukigawa (13.43%) Hatsuko Ukigawa (11.35%) | 
| Number of employees | 916 (2008) | 
| Subsidiaries | Justsystem Service Corporation JustSystems US Holding, Inc. JustSystems North America, Inc. JustSystems Canada Inc. JustSystems Evans Research, Inc. JustSystems EMEA Ltd. Dalian Justsystem Co., Ltd. | 
| Website | www | 
JustSystems Corporation (Japanese: 株式会社ジャストシステム, Hepburn: Kabushiki-gaisha Jasuto-Shisutemu) is a Japanese software development house. The company's main products were a word processor, Ichitaro ("JohnnyOne"), a Japanese input method, ATOK. In 2010s, they focus on correspondence education and enterprise software.