Slaven Bilic insists West Ham are lucky to have David Sullivan and David Gold running the club.
The Hammers are one of a dwindling number or Premier League clubs with English owners, while just this week Chinese businessman Jisheng Gao bought a majority stake in Saturday's opponents Southampton.
West Ham's' joint-chairmen occasionally come in for criticism from fans over issues such as the move to the London Stadium, their transfer business and appearances in the media.
But boss Bilic said: "I'm sure they are very appreciated by the fans.
"The fans who live for West Ham, they know how good the chairmen are doing for the club, how much they invest.