We Bull SI believe that open source products are mature enough to realize the comprehensive and effective solutions. Here are some products and technologies we use in our daily work:
| Portal development | Liferay Portal Server |
| Application servers | JBoss Application Server, IBM WebSphere |
| Business Process Management | Activity, IBM Business Process Manager |
| Web services | SOAP, SOAP w. Attachments, WS-I*, WS-Interoperability Basic Profile, UDDI, JAX-WS, MTO, REST, JAX-RS |
| Service registry and repository | UDDI |
| RDBMS | PostgreSQL, Oracle DB Server |
| ORM | JPA, Hibernate |
| ESB | IBM WebSphere ESB |
| Reports | Jasper Reports, Jasper iReport, Jasper Server |
| OLAP | Mondrian, Jasper Analysis |
| Monitoring | ZABBIX |
| UML modeling | Sparx Enterprise Architect |
| Application development | Eclipse, JBoss Tools, JBoss SEAM, JBoss RichFaces, ZK Framework |
| Programming languages | Java (J2SE, J2EE) |
| Issue tracking | JIRA |
| Development methodologies | OpenUP, RUP, TOGAF |
| Misc | Mobile applications development for Android platform |