Wantedly, Inc.

Wantedly runs a Facebook-based recruiting service which helps companies hire highly reliable web engineers and designers by leveraging the social graphs of employees.
http://wantedly.com/

Hapyrus Inc.

Hapyrus makes it easy for engineers and data analysts to collaboratively analyze big data on Amazon S3. Selected in 500 Startups' third batch, they are now based in Silicon Valley and serving enterprises in the US and Japan.
http://www.hapyrus.com/

kamado,inc.

kamado runs free online classifieds "Livlis", a social bulletin board which connects someone's "want" and someone's "give". The service is SNS and Android based. Visit Livlis now and tweet what you need.
http://kmdo.jp/

Access Analysis
Initiative, LLC

Access Analysis Initiative aims to energize the access-analysis world. They share their prestigious know-how with numbers of workshops and seminars. Attend them and be access-analytic.
http://a2i.jp/

Datasection
Inc.

Need text mining and blog-corpus? Datasection best suits your needs. They develop an outstanding semantic web. In addition, they are highly applauded for co-producing the risk management and emergency support services with Tokio Marine & Nichido Risk Consulting Co.,Ltd.
http://www.datasection.co.jp/

Koozyt, Inc.

Koozyt is proud to present "PlaceEngine", a technology that utilizes Wi-Fi signals to estimate a user's location. It makes mobile devices location-aware and develops algorithms on ad distribution, based on a user's activity history.
http://www.koozyt.com/

glucose Inc.

glucose is a professional team of semantic web developers. They developed the first goo RSS reader, and was selected as the Super Creator at IPA Exploratory Software Project. Also, they are widely known for supporting the development of mixi. For them, nothing is impossible to create.
http://glucose.jp/