Making a custom version of windows 10

Hi,
I work for a small IT company and I'd like to know if there's a way to deliver a custom win10.iso to client computers?

On occasion we get an amount of computers, sometimes 10, sometimes 20, and it can be a pain to create the local admin and apply all the various software and apply the settings times n number of computers.

I'd like to know if there's a way to apply this in a fashion that's easy for our junior engineers to do and timely enough that it doesn't waste more time than it saves.

Any advice would be appreciated

Thanks.