- June 2004
- Incorporated company world sky establishment Head office: Nerima-ku, Tokyo
- office establishment to Koto-ku, Tokyo. It is an operating base to Koto-ku.
- March 2005
- Privacy mark acquisition application is started for protection of personal information.
- April 2006
- Join the Database Security Consortium
- July 2006
- Acquisition of Licenses （Specified13-303436）of Specified Worker Dispatching Undertaking
- August 2006
- Acquisition of Privacy Mark (NO. A821593(01))
- October 2006
- Acquisition of License （General 13-302106）of General worker Dispatching Undertaking
- February 2007
- Sale of “Youjinbow” is started (in the process of patent application (Patent Application No. 2007-37528))
- April 2007
- Become a member of the Tokyo Chamber of Commerce and Industry
- October 2007
- Acquisition of License of Fee-charging Employment Placement Undertaking
- April 2008
- Become a member of the Japan Software Association (NSA)
- May 2008
- Business operation base moved to Fukuzumi Koto-Ku
- October 2008
- Join in the ORACLE Partner-Network MEMBER PARTNER
