Installer for Mac OS Mojave?

Is it possible to still get the installer for Mac OS Mojave? We have several iMacs which are live video production systems. We generally wait before upgrading the Mac OS on the systems due to compatibility with our production software, etc. Also, all of our systems rely heavily on Apple Script scripts, so whenever there is an OS upgrade, we usually suffer greatly. As Administrator, I only upgrade if I absolutely need to. Our systems are installed around the world so trying to do remote OS and production software upgrades is not fun. Anyway, I am tentatively ready to upgrade from Sierra or High Sierra to Mojave. Unfortunately I failed to get the installer when that was the current OS.

Thanks for any assistance.

Dee Dee