I will investigate the tie's make and origin for you.
It could be a Caraceni. Maybe a Nicky.
In the meanwhile, here is another photo of our dear friend and his tie, with Sig.Carlo Andreacchio, headcutter for A. Caraceni, Milano and very elegant gentleman himself.

Getting back onto the subject of Brioni, my natural inclination would be to choose a specialist bespoke tailor rather than RTW house with a sideline in bespoke.
There are many merits to working with the owner of a small sartoria who has his name on the door, has been in business for many years and only does bespoke.
Hence, suggest that you also consider A.Caraceni, the acknowledged Milanese bespoke maestro.