Had a similar one this year and ended up going to S5A and having them look up the supplier of the current line of Made In Italy house brand suits. Their system listed it as provided by Alpetora Imports. When I looked them up, their website is extremely sparse but they seem to be the import rep or owner of G Manzoni "made in Italy" with no examples or anything.
From what they said, the buyers frequently spec suits and changes makers chasing a price point. So this years could be manzoni, the one beside it from last year could be someone else.