The Czech's spot in London was ensured because of today's first-round results at the Swiss Indoors Basel.
Berdych said: "For me, it's always one of my goals at the beginning of each season and it's an honour to qualify.
"It's just great to be a part of it. It really is the celebration of tennis, only for the top eight guys. It's a huge show which I suppose tennis should be, and for us tennis players I would say it's the best tournament."