Marketing Birmingham commercial director Ian Taylor said: "Birmingham's status as a major events city means that, even in a challenging global economy, investment continues in new hotels and venues, which demonstrates general confidence in the long term prospects of our visitor economy."
Upcoming developments include the Westin Birmingham, which is set to open in May 2012.
Birmingham hosted the Rotary International Convention in June, which attracted some 20,000 delegates and support staff and was held at the NEC.
Concerts, markets and other events were also held around the city and region.
The event helped boost city centre hotels' occupancy levels to 71% during June, according to marketing specialist LJF Research, compared with 65% in June 2008.
Revenue per available room rose to £49.06 throughout June, compared with £39.90 the previous month.
Taylor added: "These figures indicate just how important large events are to the economy and wellbeing of the city. Over the next few weeks, we will see two of the biggest sporting events of the year, the third Npower Ashes Test and Twenty20 Finals come to Edgbaston, attracting thousands of cricket fans to the city."