Infront has offices in Zürich. Also offices in South Africa( well they were gifted contracts for hospitality there) and Sao Paulo for 2014.
Based in Zug they were bought out by a company called Bridgepoint in 2011. Bridgeport apparently beat out the Qatari Investment group that owns PSG.
Infront claim to employ 500 people !
It's all easily found on google.