<human>: Can you succinctly summarize the text in 1-3 sentences?

Hello reddit,

I'm a bit confused as to what I'm allowed to, and not allowed to, do.
I'll try and keep this as short and sweet a sit needs to be, and thanks in advance for any help given. Much appreciated!

So, essentially a friend and I are starting a small design studio together, where we hope to offer services in social marketing, print, iOS apps and websites. We're currently in the process of building everything up and should be looking for clients in around a month.

I'm currently designing our website, which I hope to start building this weekend. However I've come across a bit of a pickle; the portfolio section and what I can/can't put there.

Naturally I know I can put my own, personal, work in there alongside any freelance work I've completed. However, four months ago I left a job at another small design agency local to me where I had been working for eight months. I'd been designing websites, marketing materials, email newsletters and many other things that would be great to put into my portfolio. The question is, can I put this work in my new studio's portfolio. It's design work I've completed, none of the work comes under any NDA, and I'm only going to be posting the work that I did personally. 

If I can, do I need to put anything accrediting the client to the company? I'm guessing so - but unsure what.

I'm really in a muddle at the moment, am keen to not get in any legal trouble but at the same time want to show off as much of my work as possible.

If anyone knows, please do speak up because I'm having to halt the design until I know for sure. The past company was happy to have my work in a personal portfolio, but I haven't approached them with regard to the new studio's. I don't see why it would be any different, as it's work I've done, but I felt it best to ask here.
<bot>: I'm starting a new studio and in the process of designing the portfolio. Can I put in work I've completed for clients while at another company? If so, do I need to put anything there to credit them?