Ask HN: Multiple client bug tracker/agile board for consultants?

What are people using to track issues as well as plan their weeks across multiple projects/clients. I work at a consulting company and currently we have a number of different tracking tools depending on the client and project. Sometimes the client uses their own tracker, sometimes asks us for one, etc.

It'd be great if we could organize it so that we have one board to login to. From our perspective we could login see all the different bugs, tasks, etc. of all the clients/projects. We could organize them onto a single sprint board and work on them accordingly.

From the client's view they'd be able to login and only see their own issues/etc. that is assigned to them/their company.

Looking around Jira with Grasshopper may be a good fit, however prices are going to jump quickly between having ourselves as users and giving clients and their employees/PMs accounts.

Any recommendations on some different solutions? We're also fine with hosting a solution on our own servers if that is required.