Including completed projects in my website (portfolio)

Background

I americium an AI advisor and I activity processing civilization algorithms to lick problems for clients.

I would to put, connected my website, nan database of clients I had and a summary page for nan past projects, to beforehand my work.

Question

• Is it considered bad believe aliases little reliable to see projects without mentioning for whom I did them?
• To mention a customer (with logo) connected my website (e.g. saying I did immoderate task for them), is it basal to person their written consent?