The Leeds conference industry is worth £562 million for the local economy every year, according to the latest figures.
Regional development agency Yorkshire Forward surveyed 100 venues in the city last year and found that Leeds attracts more than four million delegates to conferences every year.
"There has been huge growth in hotels and meeting venues in the city in the past five years," said Nicola Lockwood, head of Conference Leeds.
She added that 2009 had been a busy year for the city in spite of the recession.
Leeds boasts major sporting corporate hospitality offerings such as Headingley Cricket Ground - which hosted the an Ashes test last year - and Leeds United's Elland Road stadium.
It also has more unusual venues such as the Royal Armouries museum.
The research from Yorkshire Forward also showed that nearly six million conference-goers visit the wider area of West Yorkshire every year, spending £777 million.