>>11742457 (pb)
Kinda looks like SmartMatic moved out of their London HQ at 105 Piccadilly as well. Doesn’t appear more than a stones throw or so from where Assange was either, but that’s just anecdotal.
http://openoffices.com/office/105-piccadilly-mayfair-w1-london-2348
^This one says “both floors”
https://www.knightfrank.co.uk/properties/commercial/to-let/105-piccadilly-greater-london-london-w1j-7nj/cpd255197
^This one is a third floor office available.