Kompany says defending the title will be tougher than winning it last season.
He said: "I think, for us, we have massive amounts of confidence.
"We could be looking at the fact that we're not dismantling teams but just look at what's happened this Premier League season, the amount of talent there is. That's difficult. It's a lot more competitive and I don't know if it is down to the new Premier League TV rights or whatever.
"But you do feel that every team has strengthened, I don't see any team that's weaker this season than last. That's why for us to get results is good, winning is the most important thing."