The England defender, speaking ahead of England's World Cup qualifying match with Andorra at Wembley, said: "I think it's a positive thing, from what I can gather.
"Any kind of financial investment into the team or club is great. We are at a really crucial period in terms of developing the team and I think it's a positive sign that the manager can maybe go out and strengthen the squad."
Gianfranco Zola, the West Ham manager, has been told he can invest but must balance the books. Upson has been linked with a possible big-money move away from Upton Park, but the defender insisted he was happy where he was.
"I wouldn't know about my future (following the takeover)," he added. "All I know is I'm very positive in that the club's got some good financial investment.
"As a player I want to improve and develop, so at the moment my future is there, I'm very happy and I'm enjoying my football. I'm enjoying working under Gianfranco Zola, so I think times are good.
"It's the most games I have ever played and it's the best season of my career to date. I feel I've improved and developed well, so I am very positive about next season."
Upson is quietly confident about the future at international level though will be guarding against complacency on Wednesday.
"We'll obviously dominate a lot of the play but sometimes, as a defender, those games are some of the hardest and you can't get into your rhythm.
"It's a real matter of concentrating and keeping switched on for 90 minutes because you can go through long spells of doing nothing and suddenly something happens and you have to be on your guard.
"To go to a World Cup would mean everything. It's something I've worked very hard towards over the last five years and it's a big goal of mine, to go to a World Cup."