Shameless plug: http://www.nubisio.com http://www.nubisio.com. Our pricing is capacity based, so you can have as many users as you want, and our product (CloudS

Shameless plug: http://www.nubisio.com http://www.nubisio.com. Our pricing is capacity based, so you can have as many users as you want, and our product (CloudStorm) supports all major cloud providers.