Uniadex Ltd. (ユニアデックス株式会社, Yuniadekkusu Kabushiki-gaisha) is a Japanese company headquartered in Tokyo, Japan, that offers IT services.

[1] The company offers system integration, cloud computing, information security, and IT lifecycle support services in Japan and mostly for enterprises, apart from Nihon Unisys.

The company is an official partner of Blue Coat Systems, Cisco Systems, Citrix Systems, Dell EMC, etc.

[2] The business type and scope is the same as Itochu Techno-Solutions and SCSK.

Uniadex was established when Nihon Unisys Ltd. acquired Netmarks Inc. from Sumitomo Electric Industries Ltd. by takeover in 2007, and when Uniadex Ltd. and Netmarks Inc. merged in 2014.