According to BileDani's thread: hltv.org/forum/1120838-official-lg-best-..
MONEY WON Last 5 big events:
1) LG: 634 000$
And now add the winning money from the Austin and ESL Pro League Season 3 Finals and you will get 884000$
LG richest team ever ATM?
definitely not, but they are very successful . richest team are not always the best teams but teams with popular name /players. example cloud 9 sucks but they have more money than LG even though LG is a far better team