A poll of European travel planners shows that 30% will have bigger budgets this year – down from 40% last year, but on par with 2017.
And there was a slight increase in the number of people who said their budget has shrunk. It rose to 15% this year from 13% whose budget shrank in 2018.
The annual survey also showed fewer planners (14%) will see a reduction in their accommodation budgets this year.
Business Travel Show group event director David Chapple said: "The wobble shown by these results may reflect the uncertainty and dent in confidence the industry is currently experiencing in the light of Brexit.
"Despite the EU agreeing to the Government’s plan to divorce, how Brexit will affect business travel for the UK and Europe is still very much conjecture and, unsurprisingly, organisations are remaining cautious about spend."
There was also a slight rise in planners with less to spend on air travel, some 16% compared to 11% last year.
A third of buyers will manage more trips, much less than 45% last year, alongside a 5% drop in the number who forecast an increase in travel costs to 43%.
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