Dear sirs, I work with NSX in my own environment, providing web hosting, and gaming services. I imagine that NSX is already installed, and you want to configure it. It that the Case, or do we have to deploy NSX from scratch?
No matter the case, I can help you with that, We can deploy, if needs be, we can just configure or just update.
We can work with VLAN and ACL or with Private VLANS to provide with complete isolation, or just subnet/ ip range isolation, There are a lot of options here... I do not have enough information to give you an accurate response, but we can surely do it. Please have in mind that I live in Amsterdam so we will have ~ 8 hours difference, which means that some of the work will have to be done by me, on my daily time, and then explained/tranfered to you.
The most easy way is for you to provide with the exact demands/specifications, for me to crate an identical virtual solutions in my own premises, and when we validate that it works as you need it to work, to implement it in your client with minimal downtime and debugging.
thank you for your time, Best of luck no matter who associate you will choose!!!
Best regards,
Alexandros Rigas.