调研一下需要建立一套企业内部使用的itsm系统？

manageengine

https://sdpdemo.manageengine.com.cn/SolutionsHome.do  ；

https://www.manageengine.cn/products/service-desk/

jira service desk

https://www.atlassian.com/zh/software/jira/service-desk/pricing ；

https://www.atlassian.com/zh/software/jira/service-desk

Otrs

https://otrs.com/product-otrs/