Activision (you know the guys who own Blizzard, the WoW guys which is the biggest MMO ever). For the last 5 years revenue from consoles has exceeded revenue from PC by 2:1 (that's PC game sales + online subscriptions combined). The PC contribution to CoD sales must be tiny compared to PS360.
http://www.statista.com/statistics/269667/activision-blizzards-revenue-by-platform/
EA revenue, as already mentioned, is roughly 25% from PC. Less than half the revenue from consoles, less than half even the revenue from just PS3 and 360.
Ubisoft PC share of revenue has been max 15% since 2008. http://www.statista.com/statistics/269679/breakdown-of-ubisoft-sales-by-platform/
I dunno details for Valve, but they jumped on the console train last gen. And so did Bethesda, big time.
Follow the software money, rather than the hardware money, and consoles are still the revenue kings. Which suggests an actual PC gamer audience of maybe as little as 1/10th of that 900 million PC user base that the article in the OP claims.
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