London has retained its place as the number one European city for meetings and events activity, with Paris, Barcelona and Amsterdam making up the rest of the top four.
Berlin has jumped from seventh place to fifth, swapping with Brussels, with destinations including Rome, Nice and Frankfurt making up the rest of the top ten.
Lisa Thompson, director, UK, American Express Meetings & Events, said: "We spoke to 537 global planners and suppliers and the fact that London has retained its spot at number one is fantastic news.
"London is very easy to get to, which is a key factor in what has made it the top city in Europe."
Barbara Jamison, head of business development, Europe, London & Partners, added: "London is a world-class destination for meetings, events and incentive travel and we are delighted that the city's events industry has been awarded this latest accolade.
"London's connectivity and ease of access was underlined by American Express Meetings & Events and this combined with the city's rich culture and heritage, it's thriving tech, medical, creative and financial industries, and it's wealth of fantastic venues, makes London an exciting proposition for meeting organiser."
The top ten European cities based on meetings and events activity:
Thompson spoke to C&IT after American Express Meetings & Events had revealed its 2015 Global Meetings Forecast, which highlighted that overall meeting spend and attendee rates in the UK will decrease next year.
The report also stated that more meetings are taking place at airport locations as a way of increasing face-to-face interaction in a shorter time frame.
Thompson added: "Due to the squeeze on budgets we’ve had to shorten the time that delegates spend out of the office.
"The mantra is that agencies are trying to do more with less and we’ve had to think about how we can cut the agenda. That means reducing the amount of time people are away, reducing the number of nights that we’re booking and being near the airport also reduces transfer times.
"I think airport-based hotels have really improved. The standard has definitely gone up over the last few years for the reason that people are using them more and more for events."