Quote Originally Posted by mattp169 View Post
your tech always stays with you. or it did for me
even if the new guild does not have access to what you have. Now I havent changed guilds in ages. But the last time I did I had a tech that I was getting the benefit of while the guild did not have the science museum upgraded to have access to it.
This is correct. Recently changed guilds from a high level to low level, and even though the technologies are greyed out (and I cannot level them further), and other technologies are higher than guild level, I still got FULL benefit of all of the technologies.

You never lose the benefits of guild technologies, but you must be in A GUILD (any guild).