| 1993 | Sep | International Systems Research Co. is established
(Capitalized at 10 Million Yen) |
| 1996 | Jan | Develops and starts selling "ZOLAR 1.0" (database connectivity tool). |
| Nov | Designated as applicable business under "The law for promoting Small and Medium Business´s creativity" by the Tokyo metropolis. |
| 1997 | Feb | Capital increased to 56 million yen. |
| 1998 | Dec | Awarded the judge´s committee award at "Venture Fair Japan '98". |
| 2000 | Sep | Releases "ZOLAR6i" and "WebAuth6" |
| Dec | @Box High-performance mobile e-mail system is released. |
| 2001 | Mar | Increased Capital to 135,000,000JPY |
| | Oct | @Box 2 is released. |
| Oct | Docodemo Yo Mail is released |
| 2002 | Jan | Authentication gateway for cellphones is developed. |
| | May | "ZOLAR 7i JSP" released |
| | Jun | "@Box2 Mobile Gateway Serverpack" released |
| Nov | PPPush (PHS version) released, Certified as "DoCoMo Value" |
| 2003 | Feb | "PPPush 1.1" (DoPa cellphone netretwork supported)released. |
| Jun | "ServerEye" (Server Remote monitoring tool) released |
| 2004 | Feb | PPPhone mobile IP softphone system released |
| | Jul | PPPhone development finished. |
| | Sep | Cooperation with NTT DoCoMo for VoIP monitor service using @FreeD. |
| Dec | Ends VoIP monitor service using @FreeD. |
| 2005 | Mar | PPPhone is certified by Fusion Communications. |
| Apr | PPPhone is selected for PDA-based mobile VoIP system at Hyatt Regency Osaka. |
| 2006 | Feb | Fractalist selects ISR's Softphone for its Wireless IP Phone SDK. |
| Dec | Windows Mobile demo sample Phone available for download. |
| 2007 | Feb | Cooperation with Mobiletechnika, PPPhone FMC Enabler package released. |
| Oct | PPPhone utilizes transceiver function of Sharps handy terminal. |
| 2008 | Mar | Certificated as Google Enterprise Partner. |
| Aug | SSO ASP service for Google Apps starts. |
| | Nov | Exhibited at "Google Enterprise Day 2008 Tokyo", receive Google Apps solution partner award. |
| 2009 | Jan | ISR provides Google Apps SSO for Unicharm. |
| | Jun | Google Apps access restriction service "Cloud Gate-Light" launched. |
| 2010 | Jan | Cloud Gate users reaches 30,000 |
| Apr | POP/IMAP restriction feature added to Cloud Gate SSO. |
| May | Cloud Gate SSO ASP service starts to support single sign on to Google Apps and Salesforce. |
| 2011 | May | Okinawa branch office is opened |
ISR is proud to be a certificated Google Enterprise Partner(GEP) for Apps.