You can use Univention Corporate Server for your business via Amazon Web Services (AWS). This service includes a UCS subscription with professional support. To start with, you are granted a 10 days free trial. Further information can be found on AWS directly. Test UCS on AWS now!
AWS Marketplace Operate Univention Corporate Server at Amazon Web Services
In addition, we offer the option to operate Univention Corporate Server as a free Core Edition via an EC2 image at Amazon Web Services. You only need an AWS account from where you can start the image directly. After the confirmation of the licensing conditions, you will be forwarded to select your EC2 region.