It seems that employees of the gaming industry just can't stop sharing information about their income on their Linkedin profiles. Recently, the senior product manager of Diablo IV blabbed about $1 billion in revenue. Now there is similar information about Elder Scrolls Online, which was released by the former head of user experience at ZeniMax Gary Budhu. Massively Overpowered writes about it.
According to Budhu, his work on "interaction design and information architecture for digital asset granularity" helped "drive $15 million in monthly revenue for over a decade" for ZeniMax's MMORPG. Budhu also claims that TESO has earned $2 billion in revenue over the past decade.
This information came just as the developers are planning to start selling companions as DLC. This information confirms that TESO is among the "big five" MMORPGs, at least from a financial point of view.